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HOME/PEOPLE/KEN GRIFFIN
// PERSON

Ken Griffin

ROLE FOUNDER & CEOAT CITADELMENTIONS 11LAST SEEN SEPTEMBER 28, 2026
// BIO

Founder and CEO of hedge fund Citadel, one of the most prominent financial figures in the United States.

Discussed in
// RECENT MENTIONS
// SIGNALS
11 SIGNALS
01
mention·Sourcery·SEPTEMBER 28, 2026

“They went from like this reputation of like the worst place to work, quant trading, black boxy, et cetera, to I think so well respected... it might be a tough, intense place, but that's going to be good for me.”

Source→
02
mention·Sourcery Newsletter·SEPTEMBER 28, 2026

“Cited for transforming its internal image ('the gulag') into a more open, employee-forward public brand under Ken Griffin.”

03
funding·20VC·AUGUST 24, 2026

“Constantine built a relationship with Ken since he was a student. He had been his mentor for years and years.”

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04
mention·20VC·AUGUST 6, 2026

“Absolutely right on the trend and remains to date right on the trend. In other words, the data just last week about CapEx absolutely supports his memo. So conceptually right on the trend and then absolutely wrong on portfolio construction. If you accumulate a portfolio of high volatility stocks with 4X leverage, the math makes it clear your probability of getting wiped out once is just very high.”

Source→
05
m_and_a·Parsers VC·AUGUST 6, 2026

“Ken Griffin's Citadel swooped in to acquire its public assets following Situational Awareness's collapse”

06
mention·Axios Pro Rata·JULY 31, 2026

“Sold all of its public equities portfolio to Ken Griffin's Citadel, and reportedly held talks to sell a $3.5 billion Anthropic stake to Greenoaks and Sequoia Capital, but pulled the plug Thursday morning.”

07
mention·Newcomer Newsletter·JULY 31, 2026

“Many meme-d Citadel's Ken Griffin into the grim reaper of speculative investing.”

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08
mention·Sourcery·JULY 22, 2026

“Zoran Mamdani jumping in the pool... knocking on the glass in front of Ken Griffin's condo. Those viral moments that we've all seen... are key to the strategy.”

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09
mention·My First Million·MAY 22, 2026

“Ken asked if he would give it to him. Ed talked to Ken, realized he's very unusual and said, you can have it all and I want to invest with you.”

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10
mention·The a16z Show·MAY 20, 2026

“Ken is a major philanthropist. Ken has donated hundreds of millions of dollars, particularly to healthcare in New York City, on top of being a major taxpayer and source of tax revenue, on top of being a major employer. And so the new mayor has deliberately targeted him personally to try to force him out.”

Source→
11
mention·Axios Pro Rata·MAY 1, 2026

“For those currently in California or New York, it's about lower taxes. 'You're being taken for granted in those jurisdictions.'”

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AI-extracted from podcast / newsletter / paper summaries. May contain errors.