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 | |
|---|---|---|---|---|---|---|
|
AIV
4501
PUT
Aimco
AIV
$383M
| $4.26M | ﹤0.01% |
717,900
-21,100
| -3% | -$126K |
|
|
SEI
4502
CALL
Solaris Energy Infrastructure
SEI
$4.17B
| $4.26M | ﹤0.01% |
92,700
-75,500
| -45% | -$3.65M |
|
4503
Employers Holdings
EIG
$875M
| $4.25M | ﹤0.01% |
98,549
+10,312
| +12% | +$420K |
|
4504
PUT
Aurora
AUR
$13.7B
| $4.25M | ﹤0.01% |
1,107,700
-124,800
| -10% | -$571K |
|
4505
PUT
Exelixis
EXEL
$12.7B
| $4.25M | ﹤0.01% |
97,000
-55,600
| -36% | -$2.3M |
|
4506
CALL
Ocular Therapeutix
OCUL
$2.2B
| $4.25M | ﹤0.01% |
349,800
+142,300
| +69% | +$1.73M |
|
|
GTPE
4507
Goldman Sachs MSCI World Private Equity Return Tracker ETF
GTPE
$31.4M
| $4.24M | ﹤0.01% |
+82,268
| New | +$4.16M |
|
|
HOLX
4508
PUT
DELISTED
Hologic
HOLX
| $4.24M | ﹤0.01% |
56,900
-182,100
| -76% | -$13.3M |
|
4509
ECARX Holdings
ECX
$421M
| $4.24M | ﹤0.01% |
2,463,607
+1,441,676
| +141% | +$2.92M |
|
4510
PUT
Tradeweb Markets
TW
$22.4B
| $4.24M | ﹤0.01% |
39,400
-12,100
| -23% | -$1.3M |
|
4511
CALL
Ollie's Bargain Outlet
OLLI
$4.62B
| $4.23M | ﹤0.01% |
38,600
-31,800
| -45% | -$3.83M |
|
4512
The Greenbrier Companies
GBX
$1.41B
| $4.23M | ﹤0.01% |
90,424
-25,071
| -22% | -$1.12M |
|
4513
Northwest Bancshares
NWBI
$2.31B
| $4.23M | ﹤0.01% |
352,196
-78,943
| -18% | -$960K |
|
4514
CALL
NetEase
NTES
$80.1B
| $4.22M | ﹤0.01% |
30,700
-8,100
| -21% | -$1.15M |
|
4515
CALL
Sonoco
SON
$5.76B
| $4.22M | ﹤0.01% |
96,800
+19,500
| +25% | +$807K |
|
|
CBLL
4516
CeriBell Inc
CBLL
$895M
| $4.22M | ﹤0.01% |
+192,510
| New | +$2.99M |
|
4517
PUT
Sprott Uranium Miners ETF
URNM
$2B
| $4.22M | ﹤0.01% |
76,900
-31,200
| -29% | -$1.8M |
|
4518
Green Plains
GPRE
$1.09B
| $4.22M | ﹤0.01% |
430,583
+72,498
| +20% | +$730K |
|
4519
CALL
Vicor
VICR
$10.8B
| $4.22M | ﹤0.01% |
38,500
+30,600
| +387% | +$2.6M |
|
4520
Helix Energy Solutions
HLX
$1.54B
| $4.21M | ﹤0.01% |
672,234
-66,562
| -9% | -$442K |
|
|
GTY
4521
Getty Realty Corp
GTY
$2.05B
| $4.21M | ﹤0.01% |
153,761
-200,672
| -57% | -$5.55M |
|
4522
Herbalife
HLF
$1.29B
| $4.21M | ﹤0.01% |
+326,304
| New | +$3.46M |
|
4523
PUT
Avantor
AVTR
$9.24B
| $4.21M | ﹤0.01% |
367,000
+15,800
| +4% | +$194K |
|
4524
Citi Trends
CTRN
$616M
| $4.2M | ﹤0.01% |
101,034
+58,913
| +140% | +$2.33M |
|
4525
CALL
Gen Digital
GEN
$17B
| $4.19M | ﹤0.01% |
154,200
-16,700
| -10% | -$449K |
|
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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.