Ken Griffin Citadel Advisors
Ken Griffin founded Citadel, one of the world’s largest and most successful hedge funds. Starting his trading career from his Harvard dorm room at a young age, Griffin quickly developed a keen sense for markets and built Citadel into a global powerhouse with billions in assets under management. Known for his quantitative and technology-driven strategies, Griffin has also made headlines for significant philanthropic contributions, supporting causes in education, the arts, and public institutions. Over the years, he has earned recognition as one of the preeminent figures in modern finance.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$2.49B |
| 2 |
NVIDIA
NVDA
|
+$2.19B |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.94B |
| 4 |
TSMC
TSM
|
+$728M |
| 5 |
UnitedHealth
UNH
|
+$705M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Meta Platforms (Facebook)
META
|
+$775M |
| 2 |
AbbVie
ABBV
|
+$540M |
| 3 |
Delta Air Lines
DAL
|
+$434M |
| 4 |
Eli Lilly
LLY
|
+$433M |
| 5 |
DexCom
DXCM
|
+$433M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 4.89% |
| 2 | Healthcare | 2.92% |
| 3 | Financials | 2.71% |
| 4 | Consumer Discretionary | 2.52% |
| 5 | Industrials | 2.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
FLX
11776
BingEx Ltd
FLX
$146M
| $77.2K | ﹤0.01% |
24,276
-86,728
| -78% | -$289K |
|
11777
CALL
Janus International
JBI
$697M
| $77.2K | ﹤0.01% |
11,800
+200
| +2% | +$1.56K |
|
11778
PUT
Backblaze
BLZE
$1.18B
| $76.9K | ﹤0.01% |
+16,500
| New | +$113K |
|
11779
CALL
InnovAge Holding
INNV
$1.44B
| $76.8K | ﹤0.01% |
14,800
-17,600
| -54% | -$92.5K |
|
11780
PUT
Lifestance Health
LFST
$4.75B
| $76.7K | ﹤0.01% |
10,900
-82,900
| -88% | -$500K |
|
11781
Locafy Ltd Warrant
LCFYW
| $76.7K | ﹤0.01% |
42,363
-2,140
| -5% | -$11.4K |
|
|
OPTU
11782
PUT
Optimum Communications Inc
OPTU
$251M
| $76.4K | ﹤0.01% |
46,300
-400
| -0.9% | -$814 |
|
11783
CALL
Alta Equipment Group
ALTG
$237M
| $76.4K | ﹤0.01% |
16,600
-11,300
| -41% | -$62.1K |
|
11784
Aware
AWRE
$26.4M
| $76.1K | ﹤0.01% |
+40,920
| New | +$92.4K |
|
11785
Sypris Solutions
SYPR
$47.4M
| $76K | ﹤0.01% |
+31,154
| New | +$67.5K |
|
|
CHAI
11786
Core AI Holdings Inc
CHAI
$6.46M
| $75.9K | ﹤0.01% |
+46,567
| New | +$181K |
|
11787
PUT
Entravision Communication
EVC
$832M
| $75.9K | ﹤0.01% |
25,900
+2,400
| +10% | +$6.25K |
|
|
DENN
11788
CALL
DELISTED
Denny's
DENN
| $75.9K | ﹤0.01% |
+12,200
| New | +$69.2K |
|
11789
Wheels Up
UP
$182M
| $75.9K | ﹤0.01% |
5,779
+4,230
| +273% | +$96.4K |
|
|
PMM
11790
Franklin Managed Municipal Income Trust
PMM
$271M
| $75.6K | ﹤0.01% |
+12,065
| New | +$74K |
|
11791
CALL
Arena Group
AREN
$54.8M
| $75.6K | ﹤0.01% |
18,900
+3,900
| +26% | +$17.5K |
|
11792
CALL
ALX Oncology
ALXO
$271M
| $75.6K | ﹤0.01% |
66,900
+9,400
| +16% | +$14.2K |
|
11793
CALL
Eledon Pharmaceuticals
ELDN
$288M
| $75.2K | ﹤0.01% |
+49,800
| New | +$118K |
|
|
BACCR
11794
Blue Acquisition Corp Right
BACCR
| $75K | ﹤0.01% |
+250,100
| New | +$66.7K |
|
11795
Heritage Global
HGBL
$37.8M
| $74.8K | ﹤0.01% |
60,303
-13,162
| -18% | -$18.3K |
|
11796
Yatra Online
YTRA
$58.6M
| $74.4K | ﹤0.01% |
41,792
-40,712
| -49% | -$67K |
|
11797
PUT
Avita Medical
RCEL
$243M
| $74.2K | ﹤0.01% |
21,500
+2,200
| +11% | +$8.78K |
|
11798
Ampco-Pittsburgh
AP
$194M
| $73.9K | ﹤0.01% |
13,874
-17,522
| -56% | -$48.5K |
|
11799
CALL
Mizuho Financial
MFG
$132B
| $73.9K | ﹤0.01% |
+10,100
| New | +$69K |
|
11800
PUT
C4 Therapeutics
CCCC
$522M
| $73.9K | ﹤0.01% |
38,700
-15,700
| -29% | -$37.2K |
|
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Ken Griffin's Q4 2025 Portfolio in Review
As of Q4 2025, Ken Griffin held 14,701 positions worth $666B, up 1.3% from $657B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin's Q4 2025 filing shows 2,078 new, 5,000 increased, 5,362 reduced and 2,191 closed positions. Its largest new stake was Medline Inc: 6,006,339 shares worth $252M. The largest sale was Meta Platforms (Facebook), an estimated $775M.
By sector, the portfolio is most concentrated in Technology at 4.9% of assets, up from 3.8% a quarter earlier, followed by Healthcare and Financials.
- Ken Griffin's largest Q4 2025 buy was Medline Inc: 6,006,339 shares worth $252M.
- Ken Griffin added most to Amazon in Q4 2025, an estimated $2.49B increase.
- Ken Griffin's biggest Q4 2025 reduction was Meta Platforms (Facebook), cutting an estimated $775M.
- Ken Griffin fully exited WEX in Q4 2025, selling an estimated $131M.
- Ken Griffin's ten largest holdings make up 23% of its $666B portfolio in Q4 2025.
- Ken Griffin opened 2,078 new positions and closed 2,191 in Q4 2025.
- Ken Griffin's portfolio value rose 1.3% quarter-over-quarter to $666B.
Based on Citadel Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.