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| party = [[Republican Party (United States)|Republican]]
| party = [[Republican Party (United States)|Republican]]
| spouse = {{plainlist|
| spouse = {{plainlist|
* {{marriage|Katherine Weingartt||1996|end=div}}
* {{marriage|Katherine Weingartt|1991|1996|end=div}}
* {{marriage|[[Anne Dias-Griffin|Anne Dias]]|2003|2015|end=div}}
* {{marriage|[[Anne Dias-Griffin|Anne Dias]]|2003|2015|end=div}}
}}
}}
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==Early life and education==
==Early life and education==
Griffin was born in 1968 in [[Daytona Beach, Florida]], the son of a building supplies executive.<ref name=HedgeFun /> His father had various jobs, and was a project manager for [[General Electric]].<ref name=nextgoldman /> Griffin's grandmother, Genevieve Huebsch Gratz, inherited an oil business, three farms, and a seed business.<ref>{{Cite news |last=Harris |first=Melissa |title=Lessons, legacy of Ken Griffin's grandmother stick with billionaire |url=https://www.chicagotribune.com/business/ct-xpm-2010-07-11-ct-biz-0711-confidential-booms-20100710-story.html |work=[[Chicago Tribune]] |archive-date=September 29, 2018 |archive-url=https://web.archive.org/web/20180929092218/http://www.chicagotribune.com/business/ct-xpm-2010-07-11-ct-biz-0711-confidential-booms-20100710-story.html |url-status=live}}</ref>
Griffin was born in 1968 in [[Daytona Beach, Florida]], the son of a building supplies executive.<ref name=HedgeFun /> His father had various jobs, and was a [[project manager]] for [[General Electric]].<ref name=nextgoldman /> Griffin's grandmother, Genevieve Huebsch Gratz, inherited an oil business, three farms, and a seed business.<ref>{{Cite news |last=Harris |first=Melissa |title=Lessons, legacy of Ken Griffin's grandmother stick with billionaire |url=https://www.chicagotribune.com/business/ct-xpm-2010-07-11-ct-biz-0711-confidential-booms-20100710-story.html |work=[[Chicago Tribune]] |archive-date=September 29, 2018 |archive-url=https://web.archive.org/web/20180929092218/http://www.chicagotribune.com/business/ct-xpm-2010-07-11-ct-biz-0711-confidential-booms-20100710-story.html |url-status=live}}</ref>


Griffin grew up in [[Boca Raton, Florida]], with some time{{Weasel inline|date=August 2024}} in Texas, and Wisconsin.<ref name=thefile>{{cite news |title=The File on Citadel's Ken Griffin |url=https://www.chicagomag.com/Chicago-Magazine/June-2011/The-File-on-Citadels-Ken-Griffin/ |last=Meyer|first=Graham |work=[[Chicago (magazine)|Chicago]] |date=June 8, 2011 |issn=0362-4595 |archive-date=December 14, 2019|archive-url=https://web.archive.org/web/20191214003226/https://www.chicagomag.com/Chicago-Magazine/June-2011/The-File-on-Citadels-Ken-Griffin/ |url-status=live}}</ref> He went to middle school in Boca Raton<ref name=nextgoldman/> and [[Boca Raton Community High School]], where he was the president of the math club.<ref name=thefile/><ref name=arena/> In high school, Griffin ran a discount mail-order education software firm, EDCOM, out of his bedroom.<ref name=arena>{{Cite news |first=Neil |last=Santaniello |title=FOR TEAM OF BOCA STUDENTS, COMPUTER'S SCREEN IS ARENA |url=https://www.sun-sentinel.com/news/fl-xpm-1986-03-10-8601150102-story.html |url-status=live |work=[[Sun-Sentinel]] |archive-date=October 27, 2020|archive-url=https://web.archive.org/web/20201027142955/https://www.sun-sentinel.com/}}</ref> In a 1986 article in the ''[[Sun-Sentinel]]'', he said he thought he would become a businessman or lawyer and that he believed the job market for computer programmers would significantly decrease over the coming decade.<ref name=arena />
Griffin grew up in [[Boca Raton, Florida]], with some time{{Weasel inline|date=August 2024}} in Texas, and Wisconsin.<ref name=thefile>{{cite news |title=The File on Citadel's Ken Griffin |url=https://www.chicagomag.com/Chicago-Magazine/June-2011/The-File-on-Citadels-Ken-Griffin/ |last=Meyer|first=Graham |work=[[Chicago (magazine)|Chicago]] |date=June 8, 2011 |issn=0362-4595 |archive-date=December 14, 2019|archive-url=https://web.archive.org/web/20191214003226/https://www.chicagomag.com/Chicago-Magazine/June-2011/The-File-on-Citadels-Ken-Griffin/ |url-status=live}}</ref> He went to middle school in Boca Raton<ref name=nextgoldman/> and [[Boca Raton Community High School]], where he was the president of the math club.<ref name=thefile/><ref name=arena/> In high school, Griffin ran a discount mail-order education software firm, EDCOM, out of his bedroom.<ref name=arena>{{Cite news |first=Neil |last=Santaniello |title=FOR TEAM OF BOCA STUDENTS, COMPUTER'S SCREEN IS ARENA |url=https://www.sun-sentinel.com/news/fl-xpm-1986-03-10-8601150102-story.html |url-status=live |work=[[Sun-Sentinel]] |archive-date=October 27, 2020|archive-url=https://web.archive.org/web/20201027142955/https://www.sun-sentinel.com/}}</ref> In a 1986 article in the ''[[Sun-Sentinel]]'', he said he thought he would become a businessman or lawyer and that he believed the job market for [[computer programmer]]s would significantly decrease over the coming decade.<ref name=arena />


Griffin started at [[Harvard College]] in the fall of 1986.<ref name=thefile /> That year, one of his first investments was to buy [[put option]]s on [[Home Shopping Network]], making a $5,000 profit.<ref name=boywonder>{{Cite news |url=https://www.institutionalinvestor.com/article/b15134ls4fblx7/boy-wonder |title=Boy Wonder |work=[[Institutional Investor (magazine)|Institutional Investor]] |date=August 31, 2001 |access-date=April 4, 2021 |archive-date=February 21, 2020 |archive-url=https://web.archive.org/web/20200221235604/https://www.institutionalinvestor.com/article/b15134ls4fblx7/boy-wonder |url-status=live }}</ref> He also invested in [[convertible arbitrage]] opportunities in [[convertible bond]]s.<ref name=thefile/> Despite a ban on running businesses from campus, Griffin convinced school administrators to allow him to install a [[satellite dish]] on the roof of [[Cabot House]], a [[dormitory]], to receive stock quotes.<ref name=boywonder /><ref name=thefile /> He also asked Terrence J. O'Connor, the manager of [[convertible bond]]s at Merrill Lynch in Boston, to open a brokerage account for him with $100,000 that Griffin had gotten from his grandmother, his dentist, and others.<ref name=nextgoldman>{{cite news |last=Anderson |first=Jenny |title=Will a Hedge Fund Become the Next Goldman Sachs? |url=https://www.nytimes.com/2007/04/04/business/04citadel.html |work=[[The New York Times]] |date=April 4, 2007 |url-access=limited |issn=1553-8095 |archive-date=November 16, 2017 |archive-url=https://web.archive.org/web/20171116035328/https://dealbook.nytimes.com/2007/04/04/will-a-hedge-fund-become-the-next-goldman-sachs/ |url-status=live}}</ref><ref name=thefile/> His first fund launched in 1987 with $265,000, days after his 19th birthday.<ref name=thefile /> The fund launched in time to profit from [[Short (finance)|short]] positions on [[Black Monday (1987)|Black Monday]].<ref name=thefile /> Griffin graduated in 1989 with a degree in economics.<ref>{{Cite news |url=https://www.thecrimson.com/article/2014/2/19/largest-gift-college-history/ |title=Griffin '89 Gives $150 Million to Harvard, Largest Gift in College's History |first1=Matthew Q. |last1=Clarida |first2=Amna H. |last2=Hashmi |work=[[The Harvard Crimson]] |date=February 19, 2014 |access-date=April 3, 2021 |archive-date=March 22, 2021 |archive-url=https://web.archive.org/web/20210322060419/https://www.thecrimson.com/article/2014/2/19/largest-gift-college-history/ |url-status=live }}</ref>
Griffin started at [[Harvard College]] in the fall of 1986.<ref name=thefile /> That year, one of his first investments was to buy [[put option]]s on [[Home Shopping Network]], making a $5,000 profit.<ref name=boywonder>{{Cite news |url=https://www.institutionalinvestor.com/article/b15134ls4fblx7/boy-wonder |title=Boy Wonder |work=[[Institutional Investor (magazine)|Institutional Investor]] |date=August 31, 2001 |access-date=April 4, 2021 |archive-date=February 21, 2020 |archive-url=https://web.archive.org/web/20200221235604/https://www.institutionalinvestor.com/article/b15134ls4fblx7/boy-wonder |url-status=live }}</ref> He also invested in [[convertible arbitrage]] opportunities in [[convertible bond]]s.<ref name=thefile/> Despite a ban on running businesses from campus, Griffin convinced school administrators to allow him to install a [[satellite dish]] on the roof of [[Cabot House]], a [[dormitory]], to receive stock quotes.<ref name=boywonder /><ref name=thefile /> He also asked Terrence J. O'Connor, the manager of [[convertible bond]]s at Merrill Lynch in Boston, to open a brokerage account for him with $100,000 that Griffin had gotten from his grandmother, his dentist, and others.<ref name=nextgoldman>{{cite news |last=Anderson |first=Jenny |title=Will a Hedge Fund Become the Next Goldman Sachs? |url=https://www.nytimes.com/2007/04/04/business/04citadel.html |work=[[The New York Times]] |date=April 4, 2007 |url-access=limited |issn=1553-8095 |archive-date=November 16, 2017 |archive-url=https://web.archive.org/web/20171116035328/https://dealbook.nytimes.com/2007/04/04/will-a-hedge-fund-become-the-next-goldman-sachs/ |url-status=live}}</ref><ref name=thefile/> His first fund launched in 1987 with $265,000, days after his 19th birthday.<ref name=thefile /> The fund launched in time to profit from [[Short (finance)|short]] positions on [[Black Monday (1987)|Black Monday]].<ref name=thefile /> Griffin graduated in 1989 with a degree in [[economics]].<ref>{{Cite news |url=https://www.thecrimson.com/article/2014/2/19/largest-gift-college-history/ |title=Griffin '89 Gives $150 Million to Harvard, Largest Gift in College's History |first1=Matthew Q. |last1=Clarida |first2=Amna H. |last2=Hashmi |work=[[The Harvard Crimson]] |date=February 19, 2014 |access-date=April 3, 2021 |archive-date=March 22, 2021 |archive-url=https://web.archive.org/web/20210322060419/https://www.thecrimson.com/article/2014/2/19/largest-gift-college-history/ |url-status=live }}</ref>


==Career==
==Career==
After graduating in 1989, Griffin moved to [[Chicago]] to work with Frank Meyer, founder of Glenwood Capital Investments.<ref>{{Cite news |last=Kolhatkar |first=Sheelah |date=April 16, 2007 |title=Opening Up the Citadel |work=[[American City Business Journals]] |url=https://www.bizjournals.com/bizjournals/news/2007/04/16/opening-up-the-citadel.html |url-status=live |archive-url=https://web.archive.org/web/20201026014458/https://www.bizjournals.com/bizjournals/news/2007/04/16/opening-up-the-citadel.html |archive-date=October 26, 2020}}</ref><ref name=superstar>{{cite news |last=Vickers |first=Marcia|url=https://archive.fortune.com/magazines/fortune/fortune_archive/2007/04/16/8404298/index.htm |title=A hedge fund superstar - Citadel founder Ken Griffin is already one of the world's most powerful investors.|work=[[Fortune (magazine)|Fortune]] |date=April 3, 2007 |archive-date=December 14, 2019 |archive-url=https://web.archive.org/web/20191214065056/https://archive.fortune.com/magazines/fortune/fortune_archive/2007/04/16/8404298/index.htm |url-status=live}}</ref> Meyer allotted $1 million of Glenwood capital for Griffin to trade<ref name=superstar /> and Griffin made 70% in a year.<ref name=thefile />
After graduating in 1989, Griffin moved to [[Chicago]] to work with Frank Meyer, founder of Glenwood Capital Investments.<ref>{{Cite news |last=Kolhatkar |first=Sheelah |date=April 16, 2007 |title=Opening Up the Citadel |work=[[American City Business Journals]] |url=https://www.bizjournals.com/bizjournals/news/2007/04/16/opening-up-the-citadel.html |url-status=live |archive-url=https://web.archive.org/web/20201026014458/https://www.bizjournals.com/bizjournals/news/2007/04/16/opening-up-the-citadel.html |archive-date=October 26, 2020}}</ref><ref name=superstar>{{cite news |last=Vickers |first=Marcia|url=https://money.cnn.com/magazines/fortune/fortune_archive/2007/04/16/8404298/index.htm |title=A hedge fund superstar - Citadel founder Ken Griffin is already one of the world's most powerful investors.|work=[[Fortune (magazine)|Fortune]] |date=April 3, 2007 |archive-date=December 14, 2019 |archive-url=https://web.archive.org/web/20191214065056/https://archive.fortune.com/magazines/fortune/fortune_archive/2007/04/16/8404298/index.htm |url-status=live}}</ref> Meyer allotted $1 million of Glenwood capital for Griffin to trade<ref name=superstar /> and Griffin made 70% in a year.<ref name=thefile />


In 1990, Griffin founded [[Citadel LLC]], with [[assets under management]] of $4.6 million, aided by contributions from Meyer.<ref name=superstar /> His funds made 43% in 1991 and 40% in 1992.<ref name=boywonder />
In 1990, Griffin founded [[Citadel LLC]], with [[assets under management]] of $4.6 million, aided by contributions from Meyer.<ref name=superstar /> His funds made 43% in 1991 and 40% in 1992.<ref name=boywonder />
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Griffin made a donation of $250,000 to a Miami scholarship program for STEM students in 2022, his first donation since moving Citadel's headquarters there.<ref>{{Cite web|last1=Mustak|first1=Dayana|last2=Gordon|first2=Amanda L|title=Ken Griffin Makes First Donation in Miami Since Moving Citadel|url=https://www.bloomberg.com/news/articles/2022-10-12/ken-griffin-makes-first-donation-in-miami-since-moving-citadel?sref=HoL7wPjq|date=12 October 2022|website=bloomberg.com|access-date=March 23, 2023}}</ref>
Griffin made a donation of $250,000 to a Miami scholarship program for STEM students in 2022, his first donation since moving Citadel's headquarters there.<ref>{{Cite web|last1=Mustak|first1=Dayana|last2=Gordon|first2=Amanda L|title=Ken Griffin Makes First Donation in Miami Since Moving Citadel|url=https://www.bloomberg.com/news/articles/2022-10-12/ken-griffin-makes-first-donation-in-miami-since-moving-citadel?sref=HoL7wPjq|date=12 October 2022|website=bloomberg.com|access-date=March 23, 2023}}</ref>


Griffin, the [[Carnegie Corporation of New York]], and the [[Walton family|Walton Family Foundation]] have funded The Education Recovery Scorecard, an analysis of pandemic learning loss released in October 2022 that uses local and national test score data to map changes in student performance.<ref>{{Cite web|url=https://ed.stanford.edu/news/new-research-details-pandemic-s-variable-impact-us-school-districts|title=New research details the pandemic’s variable impact on U.S. school districts|date=October 27, 2022|website=Stanford Graduate School of Education}}</ref>
Griffin, the [[Carnegie Corporation of New York]], and the [[Walton family|Walton Family Foundation]] have funded The Education Recovery Scorecard, an analysis of pandemic learning loss released in October 2022 that uses local and national test score data to map changes in student performance.<ref>{{Cite web|url=https://ed.stanford.edu/news/new-research-details-pandemic-s-variable-impact-us-school-districts|title=New research details the pandemic's variable impact on U.S. school districts|date=October 27, 2022|website=Stanford Graduate School of Education}}</ref>


In April 2023, Griffin made a donation of $300 million to the [[Harvard Faculty of Arts and Sciences]], and Harvard announced that it would rename its [[Harvard Kenneth C. Griffin Graduate School of Arts and Sciences|Graduate School of Arts and Sciences]] after him.<ref>{{cite web |url=https://news.harvard.edu/gazette/story/2023/04/kenneth-c-griffin-makes-gift-of-300-million-to-fas/ |website=Harvard Gazette |publisher=Harvard University |title=Kenneth C. Griffin makes gift of $300 million to FAS |date=April 11, 2023 |access-date=April 11, 2023 |archive-date=April 11, 2023 |archive-url=https://web.archive.org/web/20230411151223/https://news.harvard.edu/gazette/story/2023/04/kenneth-c-griffin-makes-gift-of-300-million-to-fas/ |url-status=live }}</ref><ref name="guard-11apr2023">{{cite news |last1=Wong |first1=Julia Carrie |author-link=Julia Carrie Wong |last2=Kirchgaessner |first2=Stephanie |title=Harvard to rename school after top Republican donor following $300m gift |url=https://www.theguardian.com/us-news/2023/apr/11/harvard-republican-donor-kenneth-griffin |access-date=April 11, 2023 |work=[[The Guardian]] |date=April 11, 2023 |archive-date=April 12, 2023 |archive-url=https://web.archive.org/web/20230412043354/https://www.theguardian.com/us-news/2023/apr/11/harvard-republican-donor-kenneth-griffin |url-status=live }}</ref> A few weeks later, Griffin donated $25 million to [[Success Academy Charter Schools]], New York City's largest charter school network,<ref>{{cite news |last1=Gordon |first1=Amanda L |title=Ken Griffin Gives $25 Million to New York’s Success Academy Schools |url=https://www.bloomberg.com/news/articles/2023-04-25/ken-griffin-gives-25-million-to-ny-s-success-academy-schools |publisher=Bloomberg News |date=April 25, 2023}}</ref> and gave $20 million to [[Miami Dade College]], where he also addressed the 2023 graduating class.<ref>{{cite news |last1=Chen |first1=Shiyin |title=Ken Griffin Gifts $20 Million, Life Lessons to Miami College |url=https://www.bloomberg.com/news/articles/2023-04-23/ken-griffin-gives-20-million-to-miami-dade-college-shares-life-lessons |publisher=Bloomberg News |date=April 23, 2023}}</ref>
In April 2023, Griffin made a donation of $300 million to the [[Harvard Faculty of Arts and Sciences]], and Harvard announced that it would rename its [[Harvard Kenneth C. Griffin Graduate School of Arts and Sciences|Graduate School of Arts and Sciences]] after him.<ref>{{cite web |url=https://news.harvard.edu/gazette/story/2023/04/kenneth-c-griffin-makes-gift-of-300-million-to-fas/ |website=Harvard Gazette |publisher=Harvard University |title=Kenneth C. Griffin makes gift of $300 million to FAS |date=April 11, 2023 |access-date=April 11, 2023 |archive-date=April 11, 2023 |archive-url=https://web.archive.org/web/20230411151223/https://news.harvard.edu/gazette/story/2023/04/kenneth-c-griffin-makes-gift-of-300-million-to-fas/ |url-status=live }}</ref><ref name="guard-11apr2023">{{cite news |last1=Wong |first1=Julia Carrie |author-link=Julia Carrie Wong |last2=Kirchgaessner |first2=Stephanie |title=Harvard to rename school after top Republican donor following $300m gift |url=https://www.theguardian.com/us-news/2023/apr/11/harvard-republican-donor-kenneth-griffin |access-date=April 11, 2023 |work=[[The Guardian]] |date=April 11, 2023 |archive-date=April 12, 2023 |archive-url=https://web.archive.org/web/20230412043354/https://www.theguardian.com/us-news/2023/apr/11/harvard-republican-donor-kenneth-griffin |url-status=live }}</ref> A few weeks later, Griffin donated $25 million to [[Success Academy Charter Schools]], New York City's largest charter school network,<ref>{{cite news |last1=Gordon |first1=Amanda L |title=Ken Griffin Gives $25 Million to New York's Success Academy Schools |url=https://www.bloomberg.com/news/articles/2023-04-25/ken-griffin-gives-25-million-to-ny-s-success-academy-schools |publisher=Bloomberg News |date=April 25, 2023}}</ref> and gave $20 million to [[Miami Dade College]], where he also addressed the 2023 graduating class.<ref>{{cite news |last1=Chen |first1=Shiyin |title=Ken Griffin Gifts $20 Million, Life Lessons to Miami College |url=https://www.bloomberg.com/news/articles/2023-04-23/ken-griffin-gives-20-million-to-miami-dade-college-shares-life-lessons |publisher=Bloomberg News |date=April 23, 2023}}</ref>


===Poverty===
===Poverty===
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===Science and medicine===
===Science and medicine===
In March 2023, Griffin partnered with former [[Google]] CEO [[Eric Schmidt]] to donate $50 million to Schmidt's new scientific research project, [[Convergent Research]].<ref name="$50 million">{{cite news |last1=Knapp |first1=Alex |title=Why Billionaires Ken Griffin And Eric Schmidt Are Spending $50 Million On A New Kind Of Scientific Research |url=https://www.forbes.com/sites/alexknapp/2023/03/17/why-billionaires-ken-griffin-and-eric-schmidt-are-spending-50-million-on-a-new-kind-of-scientific-research/?sh=63a516bd2847 |publisher=Forbes |date=17 March 2023}}</ref> In early 2023, Griffin gave $25 million, his largest single donation to date in Florida, to the [[Nicklaus Children's Hospital]] in Miami.<ref name="Biggest">{{cite news |last1=Gordon |first1=Amanda L. |title=Griffin Makes His Biggest Miami Gift Yet to Pediatric Hospital |url=https://www.bloomberg.com/news/articles/2023-01-31/griffin-makes-his-biggest-miami-gift-yet-to-pediatric-hospital?embedded-checkout=true |publisher=Bloomberg |date=31 January 2023}}</ref> In December 2023, Griffin and American entrepreneur [[David Geffen]] pledged to donate $400 million to the [[Memorial Sloan Kettering Cancer Center]], the largest single gift in the cancer center's 150-year history.<ref name="$400 million">{{cite news |last1=Gordon |first1=Amanda L. |title=Billionaires Ken Griffin and David Geffen Give $400 Million to Fight Cancer |url=https://www.bloomberg.com/news/articles/2023-12-12/billionaires-griffin-geffen-give-nyc-s-msk-cancer-center-400-million-gift |publisher=Bloomberg |date=12 December 2023}}</ref>
In March 2023, Griffin partnered with former [[Google]] CEO [[Eric Schmidt]] to donate $50 million to Schmidt's new scientific research project, [[Convergent Research]].<ref name="$50 million">{{cite news |last1=Knapp |first1=Alex |title=Why Billionaires Ken Griffin And Eric Schmidt Are Spending $50 Million On A New Kind Of Scientific Research |url=https://www.forbes.com/sites/alexknapp/2023/03/17/why-billionaires-ken-griffin-and-eric-schmidt-are-spending-50-million-on-a-new-kind-of-scientific-research/?sh=63a516bd2847 |work=Forbes |date=17 March 2023}}</ref> In early 2023, Griffin gave $25 million, his largest single donation to date in Florida, to the [[Nicklaus Children's Hospital]] in Miami.<ref name="Biggest">{{cite news |last1=Gordon |first1=Amanda L. |title=Griffin Makes His Biggest Miami Gift Yet to Pediatric Hospital |url=https://www.bloomberg.com/news/articles/2023-01-31/griffin-makes-his-biggest-miami-gift-yet-to-pediatric-hospital?embedded-checkout=true |publisher=Bloomberg |date=31 January 2023}}</ref> In December 2023, Griffin and American entrepreneur [[David Geffen]] pledged to donate $400 million to the [[Memorial Sloan Kettering Cancer Center]], the largest single gift in the cancer center's 150-year history.<ref name="$400 million">{{cite news |last1=Gordon |first1=Amanda L. |title=Billionaires Ken Griffin and David Geffen Give $400 Million to Fight Cancer |url=https://www.bloomberg.com/news/articles/2023-12-12/billionaires-griffin-geffen-give-nyc-s-msk-cancer-center-400-million-gift |publisher=Bloomberg |date=12 December 2023}}</ref>


===Communities===
===Communities===
In December 2021, Griffin gave $5 million to support the construction of Miami's 10-mile linear park and urban trail, [[The Underline]].<ref>{{Cite web|url=https://www.chicagobusiness.com/nonprofits-philanthropy/ken-griffin-gives-5-million-miami-park-project|title=Ken Griffin gives $5 million to Miami park project |website=Crain's Chicago Business|date=December 8, 2021}}</ref> In 2022, he created the Ukraine Math and Science Achievement Fund with $3 million, which supports young [[Ukrainian refugee crisis (2022–present)|Ukrainian refugees]] studying at [[University of Cambridge|Cambridge University]].<ref name="Olympiad">{{cite news |last1=Gordon |first1=L. Amanda |title=Ken Griffin Backs Ukraine’s Math Olympiad Elite Through New Fund |url=https://www.bloomberg.com/news/articles/2022-10-13/ken-griffin-backs-ukraine-s-math-olympiad-elite-through-new-fund?embedded-checkout=true |publisher=Bloomberg |date=13 October 2022}}</ref> In May 2022, he gave $5 million to help launch the Miami Disaster Resilience Fund, which prepares the city for disasters like hurricanes.<ref name="Prepare">{{cite news |last1=Gordon |first1=Amanda L. |title=Ken Griffin Gives $5 Million to Help Miami Prepare for Disasters |url=https://www.bloomberg.com/news/articles/2022-05-31/ken-griffin-gives-5-million-to-help-miami-prepare-for-disasters |publisher=Bloomberg |date=31 May 2022}}</ref>
In December 2021, Griffin gave $5 million to support the construction of Miami's 10-mile linear park and urban trail, [[The Underline]].<ref>{{Cite web|url=https://www.chicagobusiness.com/nonprofits-philanthropy/ken-griffin-gives-5-million-miami-park-project|title=Ken Griffin gives $5 million to Miami park project |website=Crain's Chicago Business|date=December 8, 2021}}</ref> In 2022, he created the Ukraine Math and Science Achievement Fund with $3 million, which supports young [[Ukrainian refugee crisis (2022–present)|Ukrainian refugees]] studying at [[University of Cambridge|Cambridge University]].<ref name="Olympiad">{{cite news |last1=Gordon |first1=L. Amanda |title=Ken Griffin Backs Ukraine's Math Olympiad Elite Through New Fund |url=https://www.bloomberg.com/news/articles/2022-10-13/ken-griffin-backs-ukraine-s-math-olympiad-elite-through-new-fund?embedded-checkout=true |publisher=Bloomberg |date=13 October 2022}}</ref> In May 2022, he gave $5 million to help launch the Miami Disaster Resilience Fund, which prepares the city for disasters like hurricanes.<ref name="Prepare">{{cite news |last1=Gordon |first1=Amanda L. |title=Ken Griffin Gives $5 Million to Help Miami Prepare for Disasters |url=https://www.bloomberg.com/news/articles/2022-05-31/ken-griffin-gives-5-million-to-help-miami-prepare-for-disasters |publisher=Bloomberg |date=31 May 2022}}</ref>


==Political views and activities==
==Political views and activities==
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While being interviewed by [[Paul Tudor Jones]] at the [[Robin Hood Foundation]] investor conference in October 2020, Griffin criticized [[Joe Biden]]'s plans to raise the long-term [[capital gains tax]] rate.<ref>{{Cite news |title=In Leaked Remarks Among Hedge Fund Managers, Citadel's Ken Griffin Opens Up on Taxes |url=https://www.institutionalinvestor.com/article/b1p0c0b8y5q0hz/In-Leaked-Remarks-Among-Hedge-Fund-Managers-Citadel-s-Ken-Griffin-Opens-Up-on-Taxes |first=Leanna |last=Orr |work=Institutional Investor |date=October 28, 2020 |access-date=November 2, 2020 |archive-date=November 4, 2020 |archive-url=https://web.archive.org/web/20201104200713/https://www.institutionalinvestor.com/article/b1p0c0b8y5q0hz/In-Leaked-Remarks-Among-Hedge-Fund-Managers-Citadel-s-Ken-Griffin-Opens-Up-on-Taxes |url-status=live }}</ref><ref>{{Cite news |last=Shazar |first=Jon |title=Ken Griffin: Raise Taxes, Just, Like, Not On Me |url=https://dealbreaker.com/2020/10/griffin-jones-talk-taxes-stimulus |work=Dealbreaker |date=October 29, 2020 |access-date=November 2, 2020 |archive-date=April 12, 2023 |archive-url=https://web.archive.org/web/20230412122453/https://dealbreaker.com/2020/10/griffin-jones-talk-taxes-stimulus |url-status=live }}</ref>
While being interviewed by [[Paul Tudor Jones]] at the [[Robin Hood Foundation]] investor conference in October 2020, Griffin criticized [[Joe Biden]]'s plans to raise the long-term [[capital gains tax]] rate.<ref>{{Cite news |title=In Leaked Remarks Among Hedge Fund Managers, Citadel's Ken Griffin Opens Up on Taxes |url=https://www.institutionalinvestor.com/article/b1p0c0b8y5q0hz/In-Leaked-Remarks-Among-Hedge-Fund-Managers-Citadel-s-Ken-Griffin-Opens-Up-on-Taxes |first=Leanna |last=Orr |work=Institutional Investor |date=October 28, 2020 |access-date=November 2, 2020 |archive-date=November 4, 2020 |archive-url=https://web.archive.org/web/20201104200713/https://www.institutionalinvestor.com/article/b1p0c0b8y5q0hz/In-Leaked-Remarks-Among-Hedge-Fund-Managers-Citadel-s-Ken-Griffin-Opens-Up-on-Taxes |url-status=live }}</ref><ref>{{Cite news |last=Shazar |first=Jon |title=Ken Griffin: Raise Taxes, Just, Like, Not On Me |url=https://dealbreaker.com/2020/10/griffin-jones-talk-taxes-stimulus |work=Dealbreaker |date=October 29, 2020 |access-date=November 2, 2020 |archive-date=April 12, 2023 |archive-url=https://web.archive.org/web/20230412122453/https://dealbreaker.com/2020/10/griffin-jones-talk-taxes-stimulus |url-status=live }}</ref>


After [[Hamas]]'s [[7 October attacks|October 7 attacks]] on Israel in 2023, Griffin contacted the [[Harvard Corporation]] leadership to demand a university response, including a condemnation of 30 student groups that signed a letter critical of Israel. He also supported statements made by fellow alumnus and donor [[Bill Ackman]] that his firm would not hire students who signed the letter.<ref>{{Cite news |last=Copeland |first=Rob |date=2023-10-15 |title=Warning of ‘Grave’ Errors, Powerful Donors Push Universities on Hamas |language=en-US |work=The New York Times |url=https://www.nytimes.com/2023/10/15/business/harvard-upenn-hamas-israel-students-donors.html |access-date=2023-10-16 |issn=0362-4331}}</ref> In January 2024, Griffin expressed his discontent with Harvard's educational approach, saying that the university should focus on educating future leaders and problem solvers rather than getting lost in issues like [[Microaggression|microaggressions]] and [[Diversity, equity, and inclusion|DEI]].<ref>{{Cite web |title=Billionaire Megadonor Ken Griffin Says He Will Stop Donations to Harvard {{!}} News {{!}} The Harvard Crimson |url=https://www.thecrimson.com/article/2024/1/31/ken-griffin-pausing-harvard-donations/ |access-date=2024-06-27 |website=www.thecrimson.com}}</ref> In May 2024, he criticized the "failed education system" for [[2024 pro-Palestinian protests on university campuses|anti-Israel protests on campuses]], urging Harvard to "embrace our Western values that have built one of the greatest nations in the world".<ref>{{Cite web |title=Hedge fund billionaire Ken Griffin says college protests are the result of a ‘cultural revolution’ and Harvard should ’embrace our Western values’ |url=https://fortune.com/2024/05/11/ken-griffin-citadel-hedge-fund-billionaire-college-protests-israel-gaza-western-values/ |access-date=2024-06-27 |website=Fortune |language=en}}</ref>
After [[Hamas]]'s [[7 October attacks|October 7 attacks]] on Israel in 2023, Griffin contacted the [[Harvard Corporation]] leadership to demand a university response, including a condemnation of 30 student groups that signed a letter critical of Israel. He also supported statements made by fellow alumnus and donor [[Bill Ackman]] that his firm would not hire students who signed the letter.<ref>{{Cite news |last=Copeland |first=Rob |date=2023-10-15 |title=Warning of 'Grave' Errors, Powerful Donors Push Universities on Hamas |language=en-US |work=The New York Times |url=https://www.nytimes.com/2023/10/15/business/harvard-upenn-hamas-israel-students-donors.html |access-date=2023-10-16 |issn=0362-4331}}</ref> In January 2024, Griffin expressed his discontent with Harvard's educational approach, saying that the university should focus on educating future leaders and problem solvers rather than getting lost in issues like [[Microaggression|microaggressions]] and [[Diversity, equity, and inclusion|DEI]].<ref>{{Cite web |title=Billionaire Megadonor Ken Griffin Says He Will Stop Donations to Harvard {{!}} News {{!}} The Harvard Crimson |url=https://www.thecrimson.com/article/2024/1/31/ken-griffin-pausing-harvard-donations/ |access-date=2024-06-27 |website=www.thecrimson.com}}</ref> In May 2024, he criticized the "failed education system" for [[2024 pro-Palestinian protests on university campuses|anti-Israel protests on campuses]], urging Harvard to "embrace our Western values that have built one of the greatest nations in the world".<ref>{{Cite web |title=Hedge fund billionaire Ken Griffin says college protests are the result of a 'cultural revolution' and Harvard should 'embrace our Western values' |url=https://fortune.com/2024/05/11/ken-griffin-citadel-hedge-fund-billionaire-college-protests-israel-gaza-western-values/ |access-date=2024-06-27 |website=Fortune |language=en}}</ref>


===Political contributions===
===Political contributions===
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During the [[2010 United States elections]], Griffin donated $721,600 to federal candidates and political committees. Except for a $2,400 contribution to then [[United States Senate Committee on Banking, Housing, and Urban Affairs]] Chairman [[Chris Dodd]], all the contributions were to Republicans.<ref>{{cite news |url=https://www.opensecrets.org/news/2011/11/one-time-obama-bundler-now-seeing-red/ |title=One-Time Obama Bundler Now Seeing Only Red |first=M. |last=Beckel |publisher=[[OpenSecrets]] |date=November 16, 2011 |access-date=April 6, 2021 |archive-date=February 24, 2021 |archive-url=https://web.archive.org/web/20210224004943/https://www.opensecrets.org/news/2011/11/one-time-obama-bundler-now-seeing-red/ |url-status=live }}</ref> During the 2012 election cycle, Griffin contributed around $1.1 million to [[Restore Our Future]], a pro-[[Mitt Romney|Romney]] [[super PAC]].<ref>{{Cite web |last1=Phillip |first1=Abby |last2=Vogel |first2=Kenneth P. |date=June 14, 2012 |title=Wall St. vote: Romney by landslide |url=https://www.politico.com/story/2012/06/wall-streets-vote-mitt-by-a-landslide-077368 |work=[[Politico]] |archive-url=https://web.archive.org/web/20210617235512/https://www.politico.com/story/2012/06/wall-streets-vote-mitt-by-a-landslide-077368 |archive-date=June 17, 2021 |url-status=live}}</ref>
During the [[2010 United States elections]], Griffin donated $721,600 to federal candidates and political committees. Except for a $2,400 contribution to then [[United States Senate Committee on Banking, Housing, and Urban Affairs]] Chairman [[Chris Dodd]], all the contributions were to Republicans.<ref>{{cite news |url=https://www.opensecrets.org/news/2011/11/one-time-obama-bundler-now-seeing-red/ |title=One-Time Obama Bundler Now Seeing Only Red |first=M. |last=Beckel |publisher=[[OpenSecrets]] |date=November 16, 2011 |access-date=April 6, 2021 |archive-date=February 24, 2021 |archive-url=https://web.archive.org/web/20210224004943/https://www.opensecrets.org/news/2011/11/one-time-obama-bundler-now-seeing-red/ |url-status=live }}</ref> During the 2012 election cycle, Griffin contributed around $1.1 million to [[Restore Our Future]], a pro-[[Mitt Romney|Romney]] [[super PAC]].<ref>{{Cite web |last1=Phillip |first1=Abby |last2=Vogel |first2=Kenneth P. |date=June 14, 2012 |title=Wall St. vote: Romney by landslide |url=https://www.politico.com/story/2012/06/wall-streets-vote-mitt-by-a-landslide-077368 |work=[[Politico]] |archive-url=https://web.archive.org/web/20210617235512/https://www.politico.com/story/2012/06/wall-streets-vote-mitt-by-a-landslide-077368 |archive-date=June 17, 2021 |url-status=live}}</ref>


Griffin contributed $2 million to the [[Freedom Partners Action Fund]], a Republican-aligned super PAC backed by [[Charles Koch|Charles]] and [[David Koch]], in November 2015.<ref>{{Cite web |last=Sweet |first=Lynn |date=September 25, 2016 |title=Chicago mega-donor Ken Griffin spends on Senate, not Trump |url=https://chicago.suntimes.com/2016/9/25/18364943/sweet-chicago-mega-donor-ken-griffin-spends-on-senate-not-trump |work=[[Chicago Sun-Times]] |archive-url=https://web.archive.org/web/20230402055641/https://chicago.suntimes.com/2016/9/25/18364943/sweet-chicago-mega-donor-ken-griffin-spends-on-senate-not-trump |archive-date=April 2, 2023 |url-status=live}}</ref> The next month, Griffin endorsed [[Marco Rubio]] for the [[2016 Republican Party presidential primaries|2016 Republican presidential nomination]].<ref>{{cite news |url=https://www.cnbc.com/2015/12/09/hedge-fund-manager-ken-griffin-backing-marco-rubio-for-president.html |title=Hedge fund manager Ken Griffin backing Marco Rubio for president |first=Kate |last=Kelly |work=[[CNBC]] |date=December 9, 2015 |access-date=April 3, 2021 |archive-date=April 14, 2021 |archive-url=https://web.archive.org/web/20210414180059/https://www.cnbc.com/2015/12/09/hedge-fund-manager-ken-griffin-backing-marco-rubio-for-president.html |url-status=live }}</ref> He gave $5 million to a pro-Rubio super PAC.<ref name="bloomberg jan 2024">{{Cite web |last=Gordon |first=Amanda L |date=January 30, 2024 |title=Ken Griffin Gave $5 Million to Haley’s Bid to Beat Trump |url=https://www.bloomberg.com/news/articles/2024-01-30/ken-griffin-gave-5-million-to-haley-s-bid-to-beat-trump |publisher=[[Bloomberg News]] |archive-url=https://archive.today/20240130202235/https://www.bloomberg.com/news/articles/2024-01-30/ken-griffin-gave-5-million-to-haley-s-bid-to-beat-trump |archive-date=January 30, 2024 |url-status=live}}</ref> Before this endorsement, he had donated $100,000 each to three super PACs supporting Rubio, [[Jeb Bush]], and [[Scott Walker (politician)|Scott Walker]] for the nomination.<ref>{{cite news |url=https://www.chicagotribune.com/business/ct-ken-griffin-rubio-1211-biz-20151210-story.html |title=Ken Griffin, Illinois' richest man, throws financial muscle behind Rubio campaign |first=Kim |last=Janssen |work=[[Chicago Tribune]] |date=December 10, 2015 |url-access=subscription |access-date=April 6, 2021 |archive-date=May 19, 2021 |archive-url=https://web.archive.org/web/20210519101459/https://www.chicagotribune.com/business/ct-ken-griffin-rubio-1211-biz-20151210-story.html |url-status=live }}</ref>
Griffin contributed $2 million to the [[Freedom Partners Action Fund]], a Republican-aligned super PAC backed by [[Charles Koch|Charles]] and [[David Koch]], in November 2015.<ref>{{Cite web |last=Sweet |first=Lynn |date=September 25, 2016 |title=Chicago mega-donor Ken Griffin spends on Senate, not Trump |url=https://chicago.suntimes.com/2016/9/25/18364943/sweet-chicago-mega-donor-ken-griffin-spends-on-senate-not-trump |work=[[Chicago Sun-Times]] |archive-url=https://web.archive.org/web/20230402055641/https://chicago.suntimes.com/2016/9/25/18364943/sweet-chicago-mega-donor-ken-griffin-spends-on-senate-not-trump |archive-date=April 2, 2023 |url-status=live}}</ref> The next month, Griffin endorsed [[Marco Rubio]] for the [[2016 Republican Party presidential primaries|2016 Republican presidential nomination]].<ref>{{cite news |url=https://www.cnbc.com/2015/12/09/hedge-fund-manager-ken-griffin-backing-marco-rubio-for-president.html |title=Hedge fund manager Ken Griffin backing Marco Rubio for president |first=Kate |last=Kelly |work=[[CNBC]] |date=December 9, 2015 |access-date=April 3, 2021 |archive-date=April 14, 2021 |archive-url=https://web.archive.org/web/20210414180059/https://www.cnbc.com/2015/12/09/hedge-fund-manager-ken-griffin-backing-marco-rubio-for-president.html |url-status=live }}</ref> He gave $5 million to a pro-Rubio super PAC.<ref name="bloomberg jan 2024">{{Cite web |last=Gordon |first=Amanda L |date=January 30, 2024 |title=Ken Griffin Gave $5 Million to Haley's Bid to Beat Trump |url=https://www.bloomberg.com/news/articles/2024-01-30/ken-griffin-gave-5-million-to-haley-s-bid-to-beat-trump |publisher=[[Bloomberg News]] |archive-url=https://archive.today/20240130202235/https://www.bloomberg.com/news/articles/2024-01-30/ken-griffin-gave-5-million-to-haley-s-bid-to-beat-trump |archive-date=January 30, 2024 |url-status=live}}</ref> Before this endorsement, he had donated $100,000 each to three super PACs supporting Rubio, [[Jeb Bush]], and [[Scott Walker (politician)|Scott Walker]] for the nomination.<ref>{{cite news |url=https://www.chicagotribune.com/business/ct-ken-griffin-rubio-1211-biz-20151210-story.html |title=Ken Griffin, Illinois' richest man, throws financial muscle behind Rubio campaign |first=Kim |last=Janssen |work=[[Chicago Tribune]] |date=December 10, 2015 |url-access=subscription |access-date=April 6, 2021 |archive-date=May 19, 2021 |archive-url=https://web.archive.org/web/20210519101459/https://www.chicagotribune.com/business/ct-ken-griffin-rubio-1211-biz-20151210-story.html |url-status=live }}</ref>


Griffin was the biggest donor to [[Rahm Emanuel]]'s campaign for reelection as [[mayor of Chicago]].<ref name=top25>{{Cite news |url=https://www.theguardian.com/business/2016/may/10/hedge-fund-managers-salaries-billions-kenneth-griffin-james-simon |title=Top 25 hedge fund managers earned $13bn in 2015 – more than some nations |first=Rupert |last=Neate |work=[[The Guardian]] |date=May 10, 2016 |access-date=April 8, 2021 |archive-date=May 19, 2021 |archive-url=https://web.archive.org/web/20210519101500/https://www.theguardian.com/business/2016/may/10/hedge-fund-managers-salaries-billions-kenneth-griffin-james-simon |url-status=live }}</ref>
Griffin was the biggest donor to [[Rahm Emanuel]]'s campaign for reelection as [[mayor of Chicago]].<ref name=top25>{{Cite news |url=https://www.theguardian.com/business/2016/may/10/hedge-fund-managers-salaries-billions-kenneth-griffin-james-simon |title=Top 25 hedge fund managers earned $13bn in 2015 – more than some nations |first=Rupert |last=Neate |work=[[The Guardian]] |date=May 10, 2016 |access-date=April 8, 2021 |archive-date=May 19, 2021 |archive-url=https://web.archive.org/web/20210519101500/https://www.theguardian.com/business/2016/may/10/hedge-fund-managers-salaries-billions-kenneth-griffin-james-simon |url-status=live }}</ref>
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For the 2022 elections, Griffin gave $10 million to [[Congressional Leadership Fund]], the super PAC assisting House Republicans, and $5 million to the super PAC supporting Senate Republicans.<ref>{{Cite web |last=Tindera |first=Michaela |date=February 3, 2022 |title=Hedge Fund Billionaire Ken Griffin Gives $15 Million To Republican Super-PACs |url=https://www.forbes.com/sites/michelatindera/2022/01/31/hedge-fund-billionaire-ken-griffin-gives-15-million-to-republican-super-pacs/ |work=[[Forbes]] |archive-url=https://web.archive.org/web/20221207192803/https://www.forbes.com/sites/michelatindera/2022/01/31/hedge-fund-billionaire-ken-griffin-gives-15-million-to-republican-super-pacs/ |archive-date=December 7, 2022 |url-status=live}}</ref> On May 5, 2022, he donated $1.5 million to [[Lisa Murkowski]] through Alaskans for L.I.S.A. (Leadership in a Strong Alaska).<ref>Ruskin, Liz. "[https://alaskapublic.org/2022/07/21/deep-pockets-aid-murkowski-with-attack-ads-on-tshibaka/ Deep pockets aid Murkowski with attack ads on Tshibaka] {{Webarchive|url=https://web.archive.org/web/20220721163033/https://alaskapublic.org/2022/07/21/deep-pockets-aid-murkowski-with-attack-ads-on-tshibaka/ |date=July 21, 2022 }}," Alaska Public Media, July 21, 2022. Retrieved July 21, 2022.</ref><ref>"[https://docquery.fec.gov/cgi-bin/forms/C00793869/1612452/sa/ALL Schedule A] {{Webarchive|url=https://web.archive.org/web/20221007003205/https://docquery.fec.gov/cgi-bin/forms/C00793869/1612452/sa/ALL |date=October 7, 2022 }}," Federal Election Committee, July 21, 2022. Retrieved July 21, 2022.</ref>
For the 2022 elections, Griffin gave $10 million to [[Congressional Leadership Fund]], the super PAC assisting House Republicans, and $5 million to the super PAC supporting Senate Republicans.<ref>{{Cite web |last=Tindera |first=Michaela |date=February 3, 2022 |title=Hedge Fund Billionaire Ken Griffin Gives $15 Million To Republican Super-PACs |url=https://www.forbes.com/sites/michelatindera/2022/01/31/hedge-fund-billionaire-ken-griffin-gives-15-million-to-republican-super-pacs/ |work=[[Forbes]] |archive-url=https://web.archive.org/web/20221207192803/https://www.forbes.com/sites/michelatindera/2022/01/31/hedge-fund-billionaire-ken-griffin-gives-15-million-to-republican-super-pacs/ |archive-date=December 7, 2022 |url-status=live}}</ref> On May 5, 2022, he donated $1.5 million to [[Lisa Murkowski]] through Alaskans for L.I.S.A. (Leadership in a Strong Alaska).<ref>Ruskin, Liz. "[https://alaskapublic.org/2022/07/21/deep-pockets-aid-murkowski-with-attack-ads-on-tshibaka/ Deep pockets aid Murkowski with attack ads on Tshibaka] {{Webarchive|url=https://web.archive.org/web/20220721163033/https://alaskapublic.org/2022/07/21/deep-pockets-aid-murkowski-with-attack-ads-on-tshibaka/ |date=July 21, 2022 }}," Alaska Public Media, July 21, 2022. Retrieved July 21, 2022.</ref><ref>"[https://docquery.fec.gov/cgi-bin/forms/C00793869/1612452/sa/ALL Schedule A] {{Webarchive|url=https://web.archive.org/web/20221007003205/https://docquery.fec.gov/cgi-bin/forms/C00793869/1612452/sa/ALL |date=October 7, 2022 }}," Federal Election Committee, July 21, 2022. Retrieved July 21, 2022.</ref>


Griffin backed [[Nikki Haley]] for the [[2024 Republican primaries]] and contributed $5 million to her presidential campaign. He also supported [[David McCormick]] and [[2024 United States Senate election in Montana#Republican primary|Tim Sheehy]] for Senate races, contributing $10 million and $5 million, respectively.<ref name="bloomberg jan 2024" />
Griffin backed [[Nikki Haley]] for the [[2024 Republican primaries]] and contributed $5 million to her presidential campaign. He also supported [[David McCormick]] and [[2024 United States Senate election in Montana#Republican primary|Tim Sheehy]] for Senate races, contributing $10 million and $5 million, respectively.<ref name="bloomberg jan 2024" /> In August 2024, Griffin contributed $12{{nbsp}}million to an effort to defeat a [[2024 Florida Amendment 3|proposed amendment that would legalize recreational cannabis in Florida]].<ref>{{Cite news |last=Ellenbogen |first=Romy |date=August 3, 2024 |title=Effort to defeat marijuana ballot question gets $12M boost from Florida billionaire |url=https://www.miamiherald.com/news/politics-government/state-politics/article290703119.html |work=Miami Herald |archive-url=https://web.archive.org/web/20240807010654/https://www.miamiherald.com/news/politics-government/state-politics/article290703119.html |archive-date=August 7, 2024 |url-status=live |access-date=October 9, 2024}}</ref>


==Personal life==
==Personal life==
===Marriages===
===Marriages===
Griffin's first wife was Katherine Weingartt, his high-school sweetheart. The couple divorced in 1996.<ref>{{Cite web |title=20 Things You Didn't Know about Ken Griffin |url=https://moneyinc.com/ken-griffin/ |last=Lee |first=Allen |date=September 23, 2019 |website=Money Inc |access-date=August 12, 2020 |archive-date=September 25, 2020 |archive-url=https://web.archive.org/web/20200925073701/https://moneyinc.com/ken-griffin/ |url-status=live }}</ref><ref>{{cite news |url=https://www.chicagotribune.com/business/chi-ken-griffin-divorce-20140723-story.html |title=Hedge fund billionaire Ken Griffin files for divorce |first=Becky |last=Yerak |work=[[Chicago Tribune]] |date=July 24, 2014 |access-date=April 4, 2021 |archive-date=May 6, 2021 |archive-url=https://web.archive.org/web/20210506125350/https://www.chicagotribune.com/business/chi-ken-griffin-divorce-20140723-story.html |url-status=live }}</ref>
Griffin's first wife was Katherine Weingartt, his high-school sweetheart. The couple married in 1991<ref>{{Cite web |title=Marriage Record Florida |url=https://erec.mypalmbeachclerk.com///Document/GetDocumentImage/?documentId=5445218&index=0&pageNum=0&type=normal&time=10/22/2024%201:35:13%20PM&rotate=0 |date=February 9, 1991 |website=erec.mypalmbeachclerk.com/ |access-date=November 5, 2024 |archive-date=November 5, 2024 |archive-url=https://web.archive.org/web/20241105003245/https://erec.mypalmbeachclerk.com///Document/GetDocumentImage/?documentId=5445218&index=0&pageNum=0&type=normal&time=10/22/2024%201:35:13%20PM&rotate=0 |url-status=live }}</ref> and divorced in 1996.<ref>{{Cite web |title=20 Things You Didn't Know about Ken Griffin |url=https://moneyinc.com/ken-griffin/ |last=Lee |first=Allen |date=September 23, 2019 |website=Money Inc |access-date=August 12, 2020 |archive-date=September 25, 2020 |archive-url=https://web.archive.org/web/20200925073701/https://moneyinc.com/ken-griffin/ |url-status=live }}</ref><ref>{{cite news |url=https://www.chicagotribune.com/business/chi-ken-griffin-divorce-20140723-story.html |title=Hedge fund billionaire Ken Griffin files for divorce |first=Becky |last=Yerak |work=[[Chicago Tribune]] |date=July 24, 2014 |access-date=April 4, 2021 |archive-date=May 6, 2021 |archive-url=https://web.archive.org/web/20210506125350/https://www.chicagotribune.com/business/chi-ken-griffin-divorce-20140723-story.html |url-status=live }}</ref>


In March 2002, Griffin met his second wife, [[Anne Dias-Griffin]] after being set up on a blind date by a mutual friend.<ref name=timeline/><ref name=breakdown>{{Cite web |url=http://graphics.chicagotribune.com/business/griffin-divorce-timeline/ |work=Chicago Tribune |title=A breakdown of the Griffin breakup |first1=Becky |last1=Yerak |first2=Ryan |last2=Marx |date=October 7, 2015 |archive-date=December 10, 2017 |archive-url=https://web.archive.org/web/20171210045326/http://graphics.chicagotribune.com/business/griffin-divorce-timeline/ |url-status=live}}</ref> She is a French-born graduate of [[Harvard Business School]] who worked at [[Goldman Sachs]], [[Soros Fund Management]], and [[Viking Global Investors]] before starting the Chicago-based $55 million firm<ref>{{cite news |last=Murphy|first=Tim|title=Who Gets to Marry a Billionaire? |url=https://nymag.com/news/features/2007/hedgefunds/30343/ |work=[[New York (magazine)|New York]] |date=April 6, 2007 |archive-date=September 20, 2019 |archive-url=https://web.archive.org/web/20190920081052/http://nymag.com/news/features/2007/hedgefunds/30343/ |url-status=live}}</ref> Aragon Global Management.<ref name=thrusts>{{cite news|last1=Stevenson |first1=Alexandra |last2=De La Merced |first2=Michael |title=A Divorce That Thrusts Ken Griffin and Anne Dias Griffin Into the Spotlight |url=https://dealbook.nytimes.com/2014/07/24/kenneth-griffin-files-for-divorce-from-anne-dias-griffin |work=[[The New York Times]] |date=July 24, 2014 |url-access=limited |issn=1553-8095 |archive-date=November 7, 2017 |archive-url=https://web.archive.org/web/20171107165424/https://dealbook.nytimes.com/2014/07/24/kenneth-griffin-files-for-divorce-from-anne-dias-griffin/ |url-status=live}}</ref> The couple married in July 2003<ref name=blowup>{{cite news |last=Kapos |first=Shia |title=Ken Griffin gives his side of the blowup in the bedroom |url=https://www.chicagobusiness.com/article/20150220/BLOGS03/150219777/ken-griffin-says-estranged-wife-overstates-her-hedge-fund-acumen |date=February 20, 2015 |work=Chicago Business |publisher=[[Crain Communications]] |url-access=limited |issn=1557-7902 |archive-date=December 26, 2019 |archive-url= https://web.archive.org/web/20191226211112/https://www.chicagobusiness.com/article/20150220/BLOGS03/150219777/ken-griffin-says-estranged-wife-overstates-her-hedge-fund-acumen|url-status=live}}</ref> and had three children.<ref name=thrusts />
In March 2002, Griffin met his second wife, [[Anne Dias-Griffin]] after being set up on a blind date by a mutual friend.<ref name=timeline/><ref name=breakdown>{{Cite web |url=http://graphics.chicagotribune.com/business/griffin-divorce-timeline/ |work=Chicago Tribune |title=A breakdown of the Griffin breakup |first1=Becky |last1=Yerak |first2=Ryan |last2=Marx |date=October 7, 2015 |archive-date=December 10, 2017 |archive-url=https://web.archive.org/web/20171210045326/http://graphics.chicagotribune.com/business/griffin-divorce-timeline/ |url-status=live}}</ref> She is a French-born graduate of [[Harvard Business School]] who worked at [[Goldman Sachs]], [[Soros Fund Management]], and [[Viking Global Investors]] before starting the Chicago-based $55 million firm<ref>{{cite news |last=Murphy|first=Tim|title=Who Gets to Marry a Billionaire? |url=https://nymag.com/news/features/2007/hedgefunds/30343/ |work=[[New York (magazine)|New York]] |date=April 6, 2007 |archive-date=September 20, 2019 |archive-url=https://web.archive.org/web/20190920081052/http://nymag.com/news/features/2007/hedgefunds/30343/ |url-status=live}}</ref> Aragon Global Management.<ref name=thrusts>{{cite news|last1=Stevenson |first1=Alexandra |last2=De La Merced |first2=Michael |title=A Divorce That Thrusts Ken Griffin and Anne Dias Griffin Into the Spotlight |url=https://dealbook.nytimes.com/2014/07/24/kenneth-griffin-files-for-divorce-from-anne-dias-griffin |work=[[The New York Times]] |date=July 24, 2014 |url-access=limited |issn=1553-8095 |archive-date=November 7, 2017 |archive-url=https://web.archive.org/web/20171107165424/https://dealbook.nytimes.com/2014/07/24/kenneth-griffin-files-for-divorce-from-anne-dias-griffin/ |url-status=live}}</ref> The couple married in July 2003<ref name=blowup>{{cite news |last=Kapos |first=Shia |title=Ken Griffin gives his side of the blowup in the bedroom |url=https://www.chicagobusiness.com/article/20150220/BLOGS03/150219777/ken-griffin-says-estranged-wife-overstates-her-hedge-fund-acumen |date=February 20, 2015 |work=Chicago Business |publisher=[[Crain Communications]] |url-access=limited |issn=1557-7902 |archive-date=December 26, 2019 |archive-url= https://web.archive.org/web/20191226211112/https://www.chicagobusiness.com/article/20150220/BLOGS03/150219777/ken-griffin-says-estranged-wife-overstates-her-hedge-fund-acumen|url-status=live}}</ref> and had three children.<ref name=thrusts />
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===Withdrawn fraud accusation===
===Withdrawn fraud accusation===
In June 2006, Rush E. Simonson, claiming to be Griffin's mentor, filed a fraud case (2006-L-005997) against Griffin, alleging that he was entitled to a percentage of Citadel's profits for creating a computer program upon which Citadel was founded.<ref>{{Cite news |url=https://www.wsj.com/articles/BL-LB-1694 |title=Hedge Fund King Sued By Self-Described Mentor |work=[[The Wall Street Journal]] |date=June 14, 2006 |access-date=June 25, 2022 |archive-date=June 25, 2022 |archive-url=https://web.archive.org/web/20220625151114/https://www.wsj.com/articles/BL-LB-1694 |url-status=live }}</ref><ref>{{Cite web |title=Full Case Electronic Docket Search {{!}} Clerk of the Circuit Court of Cook County |url=https://casesearch.cookcountyclerkofcourt.org/DocketSearch.aspx |access-date=2022-05-23 |website=casesearch.cookcountyclerkofcourt.org |archive-date=May 24, 2022 |archive-url=https://web.archive.org/web/20220524100600/https://casesearch.cookcountyclerkofcourt.org/DocketSearch.aspx |url-status=live }}</ref> In court filings, Simonson said that he first befriended Griffin in 1982 as a computer salesman. The two struck up a business partnership in convertible-arbitrage. Griffin provided the trading savvy, working both out of his Harvard dorm room and at home in Florida, while Simonson allegedly created the computer program that served as its technological backbone. According to the suit, Griffin struck a deal with a prominent Chicago investor in the late 1980s. As Griffin and Simonson began to unwind their partnership, the suit claimed, Griffin instead began to lay the foundations of what would become Citadel. In doing so, Griffin allegedly improperly took the program that Simonson had created. Simonson also said in his lawsuit that Griffin did not give him a cut of Citadel's profits. In January 2007, he dropped the lawsuit and apologized to Griffin.<ref>{{Cite news |url=https://www.chicagotribune.com/news/ct-xpm-2007-01-22-0701220190-story.html |title=Lawsuit no longer looms for Citadel |first=Jim |last=Kirk |work=[[Chicago Tribune]] |date=January 22, 2007 |url-access=limited |access-date=June 25, 2022 |archive-date=June 25, 2022 |archive-url=https://web.archive.org/web/20220625151114/https://www.chicagotribune.com/news/ct-xpm-2007-01-22-0701220190-story.html |url-status=live }}</ref><ref>{{cite news |url=https://archive.fortune.com/magazines/fortune/fortune_archive/2007/04/16/8404298/index2.htm |title=Citadel's Griffin: Hedge fund superstar (cont.) |first=Marcia |last=Vickers |work=[[Fortune (magazine)|Fortune]] |date=April 3, 2007}}</ref>
In June 2006, Rush E. Simonson, claiming to be Griffin's mentor, filed a fraud case (2006-L-005997) against Griffin, alleging that he was entitled to a percentage of Citadel's profits for creating a computer program upon which Citadel was founded.<ref>{{Cite news |url=https://www.wsj.com/articles/BL-LB-1694 |title=Hedge Fund King Sued By Self-Described Mentor |work=[[The Wall Street Journal]] |date=June 14, 2006 |access-date=June 25, 2022 |archive-date=June 25, 2022 |archive-url=https://web.archive.org/web/20220625151114/https://www.wsj.com/articles/BL-LB-1694 |url-status=live }}</ref><ref>{{Cite web |title=Full Case Electronic Docket Search {{!}} Clerk of the Circuit Court of Cook County |url=https://casesearch.cookcountyclerkofcourt.org/DocketSearch.aspx |access-date=2022-05-23 |website=casesearch.cookcountyclerkofcourt.org |archive-date=May 24, 2022 |archive-url=https://web.archive.org/web/20220524100600/https://casesearch.cookcountyclerkofcourt.org/DocketSearch.aspx |url-status=live }}</ref> In court filings, Simonson said that he first befriended Griffin in 1982 as a computer salesman. The two struck up a business partnership in convertible-arbitrage. Griffin provided the trading savvy, working both out of his Harvard dorm room and at home in Florida, while Simonson allegedly created the computer program that served as its technological backbone. According to the suit, Griffin struck a deal with a prominent Chicago investor in the late 1980s. As Griffin and Simonson began to unwind their partnership, the suit claimed, Griffin instead began to lay the foundations of what would become Citadel. In doing so, Griffin allegedly improperly took the program that Simonson had created. Simonson also said in his lawsuit that Griffin did not give him a cut of Citadel's profits. In January 2007, he dropped the lawsuit and apologized to Griffin.<ref>{{Cite news |url=https://www.chicagotribune.com/news/ct-xpm-2007-01-22-0701220190-story.html |title=Lawsuit no longer looms for Citadel |first=Jim |last=Kirk |work=[[Chicago Tribune]] |date=January 22, 2007 |url-access=limited |access-date=June 25, 2022 |archive-date=June 25, 2022 |archive-url=https://web.archive.org/web/20220625151114/https://www.chicagotribune.com/news/ct-xpm-2007-01-22-0701220190-story.html |url-status=live }}</ref><ref>{{cite news |url=https://money.cnn.com/magazines/fortune/fortune_archive/2007/04/16/8404298/index2.htm |title=Citadel's Griffin: Hedge fund superstar (cont.) |first=Marcia |last=Vickers |work=[[Fortune (magazine)|Fortune]] |date=April 3, 2007}}</ref>


== In popular culture ==
== In popular culture ==

Latest revision as of 08:01, 4 December 2024

Ken Griffin
Kenneth C. Griffin Headshot
Griffin in 2017
Born
Kenneth Cordele Griffin

(1968-10-15) October 15, 1968 (age 56)
EducationHarvard University (BA)
Occupation(s)Hedge fund manager
Entrepreneur
Investor
Years active1990–present
Known forFounder of Citadel LLC and Citadel Securities
TitleCEO and co-CIO, Citadel LLC
Political partyRepublican
Spouses
Katherine Weingartt
(m. 1991; div. 1996)
(m. 2003; div. 2015)
Children3

Kenneth Cordele Griffin (born October 15, 1968) is an American hedge fund manager, entrepreneur and investor. He is the founder, chief executive officer, co-chief investment officer, and 80% owner of Citadel LLC,[1][2] a multinational hedge fund. He also owns Citadel Securities, one of the largest market makers in the United States.[3]

As of April 2023, Griffin had an estimated net worth of $35 billion, making him the 38th-richest person in the world. He was ranked 21st on the 2022 Forbes 400 list of richest Americans.[4] He was included in Forbes's 2023 list of the United States' Most Generous Givers, according to which he has donated $1.56 billion to various charitable causes, primarily in education, economic mobility and medical research.[5]

Griffin has contributed tens of millions of dollars to political candidates and causes, usually Republican or conservative in ideology.

Early life and education

Griffin was born in 1968 in Daytona Beach, Florida, the son of a building supplies executive.[6] His father had various jobs, and was a project manager for General Electric.[7] Griffin's grandmother, Genevieve Huebsch Gratz, inherited an oil business, three farms, and a seed business.[8]

Griffin grew up in Boca Raton, Florida, with some time[weasel words] in Texas, and Wisconsin.[9] He went to middle school in Boca Raton[7] and Boca Raton Community High School, where he was the president of the math club.[9][10] In high school, Griffin ran a discount mail-order education software firm, EDCOM, out of his bedroom.[10] In a 1986 article in the Sun-Sentinel, he said he thought he would become a businessman or lawyer and that he believed the job market for computer programmers would significantly decrease over the coming decade.[10]

Griffin started at Harvard College in the fall of 1986.[9] That year, one of his first investments was to buy put options on Home Shopping Network, making a $5,000 profit.[11] He also invested in convertible arbitrage opportunities in convertible bonds.[9] Despite a ban on running businesses from campus, Griffin convinced school administrators to allow him to install a satellite dish on the roof of Cabot House, a dormitory, to receive stock quotes.[11][9] He also asked Terrence J. O'Connor, the manager of convertible bonds at Merrill Lynch in Boston, to open a brokerage account for him with $100,000 that Griffin had gotten from his grandmother, his dentist, and others.[7][9] His first fund launched in 1987 with $265,000, days after his 19th birthday.[9] The fund launched in time to profit from short positions on Black Monday.[9] Griffin graduated in 1989 with a degree in economics.[12]

Career

After graduating in 1989, Griffin moved to Chicago to work with Frank Meyer, founder of Glenwood Capital Investments.[13][14] Meyer allotted $1 million of Glenwood capital for Griffin to trade[14] and Griffin made 70% in a year.[9]

In 1990, Griffin founded Citadel LLC, with assets under management of $4.6 million, aided by contributions from Meyer.[14] His funds made 43% in 1991 and 40% in 1992.[11]

In the early 2000s, Griffin founded market maker Citadel Securities.[15][16]

In 2003, aged 34, Griffin was the youngest person on the Forbes 400, with an estimated net worth of $650 million.[17]

From the time of his second marriage to Anne Dias in 2003 until late 2009, Griffin was the lead investor in Aragon Global Management, a hedge fund run by his then wife. The fund was also seeded with money from Julian Robertson. Griffin lost 20% of his investment in the fund.[18]

In 2006, Citadel acquired the positions of Amaranth Advisors at a steep discount.[9]

During the 2007–2008 financial crisis, for 10 months, Griffin barred his investors from withdrawing money, attracting criticism.[2][19] At the crisis's peak, the firm was losing "hundreds of millions of dollars each week".[20] It was leveraged 7:1 and the biggest funds at Citadel finished 2008 down 55%, but rebounded with a 62% return in 2009.[9]

From Citadel LLC, Griffin earned $900 million in 2009,[21] $1.4 billion in 2014,[22] $600 million in 2016,[23] $1.4 billion in 2017,[24][25] $870 million in 2018,[26] $1.5 billion in 2019,[27] and $1.8 billion in 2020.[28]

In November 2020, according to Bloomberg News, Griffin's net worth surpassed $20 billion due to an increase in the value of Citadel, of which Griffin's stake was worth $11.2 billion.[29] Citadel Securities, a market maker, increased its profit to $2.36 billion during the first half of 2020 compared to $982 million for the same period in 2019, due to increased volatility, volume and retail trader engagement.[30][31]

In January 2021, Griffin attracted criticism for the role Citadel played in the GameStop short squeeze.[32] On January 25, it was announced that Citadel would invest $2 billion into Melvin Capital, which had suffered losses of more than 30% on account of its short positions, particularly on GameStop.[33][34][35] On January 28, Robinhood, an electronic trading platform favored by many traders involved in buying GameStop stock and options, announced that it would halt all purchases of GameStop securities and only allow these securities to be sold; the price of GME stock declined steeply shortly thereafter.[36] Because Robinhood receives a substantial portion of its revenue through a payment for order flow relationship with Citadel, 85% of which is owned by Griffin, many commentators criticized the potential for conflict of interest when the same entity both plays the role of market-maker and also participates in the market it makes; Griffin has been at the center of much discussion of this controversy.[37][38][39][40][41] On February 18, 2021, he testified before the House Financial Services Committee about his role in the GameStop controversy;[41][42] Griffin had donated money directly to four members of the committee, Republicans French Hill, Andy Barr, Ann Wagner, and Bill Huizenga.[41]

Philanthropy

Griffin is among the top private donors to charities and nonprofit organizations, having donated over $2 billion to charities so far.[43][44] In September 2023, he established Griffin Catalyst, a platform for his philanthropic and civic work.[44] The organization serves as an umbrella for his various efforts.[45]

Education

Griffin has worked with the Bill and Melinda Gates Foundation to promote charter schools in the U.S.[9] and fund tutoring.[46]

In 2011, he worked with University of Chicago economics professor John A. List to test whether investment in teachers or in parents produces better student performance outcomes.[47]

At the beginning of 2014, Griffin made a $150 million donation to the financial aid program at Harvard University, his alma mater, the largest single donation ever made to the institution at the time.[48][49]

In 2014, he was elected to a five-year term on the University of Chicago's board of trustees. He is also a member of the Economic Club of Chicago and the civic committee of the Commercial Club of Chicago.[50] Griffin is the vice chairman of the Chicago Public Education Fund.[48]

In October 2017, Griffin's charitable fund donated $1 million to the Obama Foundation.[51][52]

In November 2017, Griffin's charitable fund made a $125 million gift to support the Department of Economics of the University of Chicago, renamed the Kenneth C. Griffin Department of Economics.[53]

In April 2021, he donated $5 million to an initiative to provide Internet access to students in Miami.[54]

Griffin donated $21.5 million to the Field Museum of Natural History and its dinosaur exhibit is named the Griffin Dinosaur Experience.[55]

In October 2019, Griffin's charitable fund announced a $125 million gift to the Museum of Science and Industry in Chicago, the largest gift in the museum's history. The museum was renamed the Kenneth C. Griffin Museum of Science and Industry.[56][57]

In November 2021, Griffin outbid a group of crypto investors to purchase the last privately held copy of the United States Constitution at auction for $43.2 million. Griffin said, "I intend to ensure that this copy of our Constitution will be available for all Americans and visitors to view and appreciate in our museums and other public spaces", with plans to display it first at the Crystal Bridges Museum of American Art in Arkansas.[58][59]

In March 2022, Griffin donated $40 million to the American Museum of Natural History in New York to help complete the 230,000 square foot renovation.[60]

In July 2022, he donated $130 million to Chicago nonprofits before his move to Florida.[61]

Griffin made a donation of $250,000 to a Miami scholarship program for STEM students in 2022, his first donation since moving Citadel's headquarters there.[62]

Griffin, the Carnegie Corporation of New York, and the Walton Family Foundation have funded The Education Recovery Scorecard, an analysis of pandemic learning loss released in October 2022 that uses local and national test score data to map changes in student performance.[63]

In April 2023, Griffin made a donation of $300 million to the Harvard Faculty of Arts and Sciences, and Harvard announced that it would rename its Graduate School of Arts and Sciences after him.[64][65] A few weeks later, Griffin donated $25 million to Success Academy Charter Schools, New York City's largest charter school network,[66] and gave $20 million to Miami Dade College, where he also addressed the 2023 graduating class.[67]

Poverty

Griffin supported the University of Chicago's Center for Urban School Improvement, a program encouraging the construction of an inner-city charter high school,[6] and contributed to the Lurie Children's Hospital.[68]

In 2017, Griffin contributed $15 million to the Robin Hood Foundation.[69]

In May 2022, The University of Chicago announced a $25 million donation from Griffin to launch an initiative design to train police managers and prevent neighborhood violence. The funds will aid in launching two community Safety Leadership Academies. The Policing Management Academy aims to professionalize departments by educating their leaders though coaching, accountability and data-driven decision making. This donation came after Griffin's $10 million donation to the Crime Lab in 2018 to implement an early intervention system to investigate citizen complaints.[70]

Arts

Griffin served on the board of trustees of the Museum of Contemporary Art, Chicago from 2000 to 2022.[71][72]

In July 2007, Griffin donated a $19 million addition to the Art Institute of Chicago designed by Renzo Piano and named Kenneth and Anne Griffin Court.[73] One of his paintings by Paul Cézanne was loaned to the institute.[6]

In 2010, Griffin contributed to the Chicago Symphony Orchestra's productions at Millennium Park.[6]

Griffin contributed to the Art Institute of Chicago[9] and resigned from its board in 2022.[74] He serves on the board of trustees at the Whitney Museum of American Art in New York, whose lobby bears his name: Kenneth C. Griffin Hall.[75] In February 2015, Griffin donated $10 million to the Museum of Contemporary Art, Chicago, used to create the Griffin Galleries of Contemporary Art.[72][76]

In December 2015, he donated an unrestricted $40 million to the Museum of Modern Art in New York.[75]

In 2018, he donated $20 million to the Norton Museum of Art.[77]

Religion

Griffin is a member of the Fourth Presbyterian Church of Chicago, where he was married.[78][79] In 2011, he donated $11.5 million of the $38.2 million needed to build a new chapel at the church.[78] The modern building is called "The Gratz Center" in honor of Griffin's grandparents.[78]

COVID-19 donations

Griffin oversaw a $2 million donation from Citadel and Citadel Securities to Weill Cornell Medicine to help fund the development of new ways to protect people from COVID-19 and identify new cases of the illness.[80]

In March 2020, in response to the COVID-19 pandemic, Griffin contributed $2.5 million to support food services for children in Chicago Public Schools.[81]

In May 2020, Griffin and his partners at Citadel made a £3 million donation to help develop a COVID-19 vaccine and to support Nightingale Hospital.[82]

Science and medicine

In March 2023, Griffin partnered with former Google CEO Eric Schmidt to donate $50 million to Schmidt's new scientific research project, Convergent Research.[83] In early 2023, Griffin gave $25 million, his largest single donation to date in Florida, to the Nicklaus Children's Hospital in Miami.[84] In December 2023, Griffin and American entrepreneur David Geffen pledged to donate $400 million to the Memorial Sloan Kettering Cancer Center, the largest single gift in the cancer center's 150-year history.[85]

Communities

In December 2021, Griffin gave $5 million to support the construction of Miami's 10-mile linear park and urban trail, The Underline.[86] In 2022, he created the Ukraine Math and Science Achievement Fund with $3 million, which supports young Ukrainian refugees studying at Cambridge University.[87] In May 2022, he gave $5 million to help launch the Miami Disaster Resilience Fund, which prepares the city for disasters like hurricanes.[88]

Political views and activities

In a 2012 interview with the Chicago Tribune, Griffin said that the rich actually have too little influence in politics.[89] He identified as a Ronald Reagan Republican. He said the belief "that a larger government is what creates prosperity, that a larger government is what creates good" is wrong.[90]

In a November 2015 interview on CNBC, Griffin said he admires Scott Walker, calling him an "absolute champion of free markets and a champion of smaller government".[91]

In April 2016, because Citadel owned over 1 million shares of McDonald's, Griffin was the target of protestors supporting the Fight for $15.[92] In May 2017, he praised Donald Trump's efforts at tax and healthcare reform.[93]

In 2018, it was announced that Griffin had been appointed the national finance chair for the New Republican PAC fueling Rick Scott's Super PAC.[94]

In November 2018, Griffin criticized Trump's tweets berating Chair of the Federal Reserve Jerome Powell, calling them "completely inappropriate for the president of the United States".[95][96][97]

In January 2019, Griffin was singled out by Elizabeth Warren on a Facebook post as someone who can pay her Ultra-Millionaire Tax.[98] During a March 2019 interview with David Rubenstein, he criticized Warren's proposals, saying, "soaking the rich doesn't work".[99]

In January 2020, Griffin was absent from a signing ceremony for the phase-one trade deal with China at the White House, for which Trump criticized him.[100][101]

In September 2020, Griffin wrote an op-ed published in the Chicago Tribune stating his opposition to Governor of Illinois J. B. Pritzker's "Fair Tax" proposal, which would change Illinois's income tax from a flat tax to a graduated tax.[102][103] In an October 2020 email to Citadel LLC's Chicago employees, Griffin criticized Pritzker's tax plan and alluded to the possibility of moving his company out of Illinois.[104][105]

While being interviewed by Paul Tudor Jones at the Robin Hood Foundation investor conference in October 2020, Griffin criticized Joe Biden's plans to raise the long-term capital gains tax rate.[106][107]

After Hamas's October 7 attacks on Israel in 2023, Griffin contacted the Harvard Corporation leadership to demand a university response, including a condemnation of 30 student groups that signed a letter critical of Israel. He also supported statements made by fellow alumnus and donor Bill Ackman that his firm would not hire students who signed the letter.[108] In January 2024, Griffin expressed his discontent with Harvard's educational approach, saying that the university should focus on educating future leaders and problem solvers rather than getting lost in issues like microaggressions and DEI.[109] In May 2024, he criticized the "failed education system" for anti-Israel protests on campuses, urging Harvard to "embrace our Western values that have built one of the greatest nations in the world".[110]

Political contributions

Ken Griffin's federal political contributions since 1996

In a 2012 interview, Griffin said that people should be able to make unlimited contributions to politicians, but that the contributions should be public.[111]

Griffin has made political donations to conservative political candidates, parties, and organizations, such as American Crossroads and the Republican Governors Association.[111]

During the 2010 United States elections, Griffin donated $721,600 to federal candidates and political committees. Except for a $2,400 contribution to then United States Senate Committee on Banking, Housing, and Urban Affairs Chairman Chris Dodd, all the contributions were to Republicans.[112] During the 2012 election cycle, Griffin contributed around $1.1 million to Restore Our Future, a pro-Romney super PAC.[113]

Griffin contributed $2 million to the Freedom Partners Action Fund, a Republican-aligned super PAC backed by Charles and David Koch, in November 2015.[114] The next month, Griffin endorsed Marco Rubio for the 2016 Republican presidential nomination.[115] He gave $5 million to a pro-Rubio super PAC.[116] Before this endorsement, he had donated $100,000 each to three super PACs supporting Rubio, Jeb Bush, and Scott Walker for the nomination.[117]

Griffin was the biggest donor to Rahm Emanuel's campaign for reelection as mayor of Chicago.[89]

Griffin was one of the primary backers of Future 45, a pro-Trump super PAC.[118] After Trump won the 2016 Republican nomination, Griffin did not contribute to his campaign.[119]

In 2017, he contributed $20 million to the campaign of Governor of Illinois Bruce Rauner.[120]

In March 2020, Griffin contributed $1 million to the 1820 PAC created to support the reelection of U.S. Senator Susan Collins.[121] In late 2020, he donated another $500,000 to the 1820 PAC.[122]

In 2020, Griffin donated $20 million to the Coalition To Stop The Proposed Tax Hike Amendment, a group opposing the Illinois Fair Tax in its 2020 referendum.[103][123] Weeks later, he donated another $26.75 million to the coalition.[124][125] Griffin later donated another $7 million to the group, bringing his total contributions to $53.75 million.[126][127] Also that year, he donated $2 million to an anti-retention effort for Justice Thomas L. Kilbride, a Democrat on the Supreme Court of Illinois.[128][129]

Griffin supported Kelly Loeffler and David Perdue in the 2020–21 United States Senate election in Georgia.[130] In October 2020, he was criticized for a $2 million contribution to a Super PAC supporting Loeffler and funded by her husband, New York Stock Exchange Chairman Jeffrey Sprecher just after one of Citadel LLC's companies needed Sprecher's approval for a merger.[131]

Griffin contributed a total of $66 million to the 2020 United States elections.[132]

In 2021, Griffin donated $5 million to Ron DeSantis, the governor of Florida.[133] His donations to DeSantis prompted criticism of a possible conflict of interest when DeSantis began promoting Regeneron Pharmaceuticals' therapeutic treatment for COVID-19.[134][135][136][137] DeSantis has encouraged such monoclonal antibody treatment for COVID-19, which can treat people after they get sick and reduce hospitalization.[138] Shares in Regeneron were a $16 million investment by Griffin's hedge fund.[139][140] The fund denied any conflict of interest, noting that it had much larger investments in vaccine makers Pfizer and Moderna.[134][135][141][137] Likewise, a DeSantis spokesperson said that any suggestion of corruption over this connection to Griffin via Regeneron was illogical.[140] Griffin has at times criticized DeSantis, for example saying, "I don't appreciate Governor DeSantis going after Disney's tax status".[142]

Later in 2021, Griffin promised to donate twice the amount to the Republican opponent of incumbent governor J. B. Pritzker that Pritzker gave himself for the 2022 Illinois gubernatorial election.[143]

For the 2022 elections, Griffin gave $10 million to Congressional Leadership Fund, the super PAC assisting House Republicans, and $5 million to the super PAC supporting Senate Republicans.[144] On May 5, 2022, he donated $1.5 million to Lisa Murkowski through Alaskans for L.I.S.A. (Leadership in a Strong Alaska).[145][146]

Griffin backed Nikki Haley for the 2024 Republican primaries and contributed $5 million to her presidential campaign. He also supported David McCormick and Tim Sheehy for Senate races, contributing $10 million and $5 million, respectively.[116] In August 2024, Griffin contributed $12 million to an effort to defeat a proposed amendment that would legalize recreational cannabis in Florida.[147]

Personal life

Marriages

Griffin's first wife was Katherine Weingartt, his high-school sweetheart. The couple married in 1991[148] and divorced in 1996.[149][150]

In March 2002, Griffin met his second wife, Anne Dias-Griffin after being set up on a blind date by a mutual friend.[79][151] She is a French-born graduate of Harvard Business School who worked at Goldman Sachs, Soros Fund Management, and Viking Global Investors before starting the Chicago-based $55 million firm[152] Aragon Global Management.[153] The couple married in July 2003[18] and had three children.[153]

In July 2014, Griffin filed a divorce petition in Cook County, Illinois, citing "irreconcilable differences" with Dias-Griffin.[154][155] The couple had a prenuptial agreement that governed the split of their assets in the event of divorce.[153][156][157][158] As part of the agreement, Dias-Griffin received $22.5 million at the beginning of their marriage and an additional $1 million each year they were married.[154][156] During the marriage, she received $37 million in cash payments and 50% ownership of their Chicago penthouse, which occupies three floors of the building.[159] In court fillings, she claimed that she was forced to sign the prenuptial agreement.[154][160] She also claimed that Ken Griffin had no right to enter the Chicago penthouse.[161][162] He allegedly forbade her from entering homes in Hawaii, Miami, Colorado and New York.[154] In later court filings, Dias-Griffin requested $1 million per month in child support payments, including $300,000 per month for private jet travel, $160,000 per month for vacation rentals, and $60,000 per month for office space and staff.[163][164][165][166] Griffin claimed that Dias-Griffin was attempting to use child support to fund her "opulent lifestyle".[167] During the divorce, she requested $450,000 for a 10-day vacation to St. Barts over winter break with their three children. Griffin denied her request but agreed to pay $45,000 for a winter vacation.[168][169][151] The couple settled their divorce out of court in October 2015, just hours before a public trial over the prenuptial agreement was set to begin.[170][154] As part of the divorce, Griffin paid $11.75 million to buy out his wife's interest in their Chicago penthouse.[171] He and Dias-Griffin maintain joint custody of their children.[154][172][173][174][160]

Art collection

Griffin is an active buyer of modern art and contemporary art from mainstream artists.[75][175] His portfolio is valued at close to $800 million and includes several paintings on the list of most expensive paintings.[176][177]

In 1999, he purchased Paul Cézanne's 1893 painting Curtain, Jug and Fruit Bowl for a reported record $60 million for a Cézanne at the time.[9]

In October 2006, he purchased False Start by artist Jasper Johns for $80 million from David Geffen.[178] In 2015, he purchased Gerhard Richter's 1986 painting Abstract Picture, 599 for $46 million.[175]

In September 2015, in the largest private art deal ever, he purchased two paintings from Geffen for $500 million: Willem de Kooning's 1955 oil painting Interchange for $300 million, and Jackson Pollock's 1948 painting Number 17A for $200 million.[179][180]

In 2017, Griffin reportedly purchased Andy Warhol's 1964 painting Orange Marilyn privately for around $200 million.[citation needed]

In June 2020, he purchased Boy and Dog in a Johnnypump (1982) by Jean-Michel Basquiat for over $100 million.[181][176] He loaned the painting to the Art Institute of Chicago to be put on public display.[182]

His collection also includes art by Njideka Akunyili Crosby.[183]

Personal residences

In January 2019, Griffin purchased 4 unfurnished floors at 220 Central Park South (pictured) for $238 million, breaking the record for the most expensive home ever sold in the United States.

Griffin owns personal residences valued in total at around $1 billion.[184]

In 2009, Griffin purchased a full floor apartment at 820 Fifth Avenue in New York City for $40 million.[184][185][186]

In 2015, Griffin purchased two apartments at the top of the Faena House, a condominium on Collins Avenue in Miami Beach, Florida for $60 million. He sold them in late 2020 at a loss.[184][187]

In 2011, Griffin purchased two oceanfront homes at the Four Seasons Resort Hualalai in Kailua-Kona, Hawaii, for $28 million.[184][188][189]

In 2013 and 2015, Griffin purchased homes in Aspen, Colorado, for $10 million and $12.8 million respectively.[184][190]

In 2017, Griffin purchased a penthouse apartment atop the No. 9 Walton luxury condo tower in Chicago's Gold Coast for $58.75 million. The purchase broke the record for the most expensive sale in Chicago history. The condo was delivered as "raw space" so that Griffin could build it out to his liking.[184][191][192] Griffin also owns a full-floor penthouse at the Waldorf Astoria private residences across the street from No. 9 Walton. Records show he purchased it for $6.884 million in 2010.[184]

In 2019, Griffin purchased 3 Carlton Gardens, a Georgian mansion in London for $122 million. The purchase broke several records.[193][194][195]

In 2019, Griffin set the record for the most expensive residential sale ever closed in the U.S. when he purchased roughly 24,000 square feet across three floors at 220 Central Park South in Midtown Manhattan for $238 million. The space was "raw space", meaning Griffin had to build it out.[196][197][198] Several New York real estate experts have said that the purchase helped fuel legislation that increased taxes on luxury homes in New York.[199][200] During an interview with David Rubenstein, Griffin said that the purchase represented the possibility of making New York City his home in the future.[99]

Griffin has spent $450 million to assemble one of the largest private waterfront sites in Palm Beach County, Florida, with plans to build a 50,000 square foot estate.[184][201][202]

In 2020, Griffin purchased a 7-acre oceanfront compound in Southampton, New York from Calvin Klein for $84.4 million.[203]

In 2020, Griffin purchased several properties on Star Island in Miami Beach for a total of $95 million.[204]

In 2022, Griffin purchased a waterfront mansion in Coral Gables, Florida for $45.25 million.[205]

Private jets

Griffin owns two private jets: a 2001 Bombardier Global Express valued at $9.5 million and a $50 million 2012 Bombardier Global 6000.[206]

Withdrawn fraud accusation

In June 2006, Rush E. Simonson, claiming to be Griffin's mentor, filed a fraud case (2006-L-005997) against Griffin, alleging that he was entitled to a percentage of Citadel's profits for creating a computer program upon which Citadel was founded.[207][208] In court filings, Simonson said that he first befriended Griffin in 1982 as a computer salesman. The two struck up a business partnership in convertible-arbitrage. Griffin provided the trading savvy, working both out of his Harvard dorm room and at home in Florida, while Simonson allegedly created the computer program that served as its technological backbone. According to the suit, Griffin struck a deal with a prominent Chicago investor in the late 1980s. As Griffin and Simonson began to unwind their partnership, the suit claimed, Griffin instead began to lay the foundations of what would become Citadel. In doing so, Griffin allegedly improperly took the program that Simonson had created. Simonson also said in his lawsuit that Griffin did not give him a cut of Citadel's profits. In January 2007, he dropped the lawsuit and apologized to Griffin.[209][210]

Nick Offerman portrays Griffin in the 2023 film Dumb Money, a biographical drama about the GameStop short squeeze. Griffin claims the original script contained many fabrications, and he coordinated with Sony Pictures to correct some inaccuracies before its release, but he still finds aspects of the film to be sensationalized.[211][212]

See also

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Further reading