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 | |
|---|---|---|---|---|---|---|
2501
CALL
Rambus
RMBS
$10.9B
| $17.3M | ﹤0.01% |
188,200
+32,600
| +21% | +$3.21M |
|
2502
PUT
ProShares Ultra Bloomberg Natural Gas
BOIL
$397M
| $17.3M | ﹤0.01% |
377,540
+226,600
| +150% | +$13.9M |
|
2503
UroGen Pharma
URGN
$2.36B
| $17.3M | ﹤0.01% |
737,757
+135,480
| +22% | +$2.94M |
|
|
ETHE
2504
CALL
Grayscale Ethereum Staking ETF Shares
ETHE
$1.52B
| $17.3M | ﹤0.01% |
708,400
-258,300
| -27% | -$7.34M |
|
2505
Vodafone
VOD
$37.9B
| $17.2M | ﹤0.01% |
1,305,067
+1,146,536
| +723% | +$13.9M |
|
2506
Olin
OLN
$2.18B
| $17.2M | ﹤0.01% |
827,402
+589,156
| +247% | +$12.7M |
|
2507
PACS Group
PACS
$7.04B
| $17.2M | ﹤0.01% |
448,700
+74,665
| +20% | +$1.64M |
|
2508
PUT
PG&E
PCG
$39.3B
| $17.2M | ﹤0.01% |
1,071,000
-3,757,300
| -78% | -$60M |
|
2509
CALL
NetApp
NTAP
$40.6B
| $17.2M | ﹤0.01% |
160,600
-90,300
| -36% | -$10.3M |
|
2510
PUT
Alaska Air
ALK
$5.13B
| $17.2M | ﹤0.01% |
341,100
+40,200
| +13% | +$1.86M |
|
2511
Astronics
ATRO
$4.61B
| $17.1M | ﹤0.01% |
378,960
+198,374
| +110% | +$8.32M |
|
2512
Primoris Services
PRIM
$4.48B
| $17.1M | ﹤0.01% |
137,809
+130,646
| +1,824% | +$17.1M |
|
|
GRMN
2513
Garmin
GRMN
$59.8B
| $17.1M | ﹤0.01% |
84,334
-90,852
| -52% | -$19.8M |
|
2514
PUT
Truist Financial
TFC
$64.9B
| $17.1M | ﹤0.01% |
347,600
+89,900
| +35% | +$4.14M |
|
2515
CALL
Bilibili
BILI
$7.3B
| $17.1M | ﹤0.01% |
695,600
-158,100
| -19% | -$4.25M |
|
2516
ZIM Integrated Shipping Services
ZIM
$3.39B
| $17.1M | ﹤0.01% |
805,422
+21,329
| +3% | +$358K |
|
2517
iShares Paris-Aligned Climate Optimized MSCI World ex USA ETF
PABD
$342M
| $17.1M | ﹤0.01% |
264,237
+153,606
| +139% | +$9.8M |
|
2518
CALL
Bitdeer Technologies
BTDR
$2.48B
| $17.1M | ﹤0.01% |
1,523,700
-128,700
| -8% | -$2.07M |
|
2519
Moderna
MRNA
$25.3B
| $17.1M | ﹤0.01% |
579,130
-1,408,601
| -71% | -$38.3M |
|
2520
Gartner
IT
$11.4B
| $17.1M | ﹤0.01% |
67,603
+51,977
| +333% | +$12.5M |
|
2521
CALL
Signet Jewelers
SIG
$3.52B
| $17M | ﹤0.01% |
205,700
-47,100
| -19% | -$4.47M |
|
2522
PUT
Symbotic
SYM
$5.55B
| $17M | ﹤0.01% |
286,400
-769,500
| -73% | -$50.8M |
|
2523
CALL
PACCAR
PCAR
$68.8B
| $17M | ﹤0.01% |
155,600
-9,800
| -6% | -$1M |
|
2524
PUT
Clear Secure
YOU
$4.68B
| $17M | ﹤0.01% |
485,600
+135,300
| +39% | +$4.61M |
|
2525
PUT
Norfolk Southern
NSC
$75.1B
| $17M | ﹤0.01% |
59,000
-37,500
| -39% | -$10.8M |
|
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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.