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 | |
|---|---|---|---|---|---|---|
|
FLG
1276
Flagstar Bank National Association
FLG
$5.94B
| $58.4M | 0.01% |
4,639,262
+3,393,014
| +272% | +$40.6M |
|
1277
Bank OZK
OZK
$5.75B
| $58.3M | 0.01% |
1,266,664
+914,344
| +260% | +$42.8M |
|
1278
Apogee Therapeutics
APGE
$10.2B
| $57.9M | 0.01% |
766,981
-402,263
| -34% | -$25.3M |
|
1279
Vulcan Materials
VMC
$36.1B
| $57.8M | 0.01% |
202,819
-190,972
| -48% | -$56M |
|
1280
PUT
Monolithic Power Systems
MPWR
$67.9B
| $57.8M | 0.01% |
63,800
+28,500
| +81% | +$27.4M |
|
1281
C.H. Robinson
CHRW
$17.5B
| $57.7M | 0.01% |
358,730
-18,685
| -5% | -$2.76M |
|
1282
Guardant Health
GH
$21.2B
| $57.6M | 0.01% |
564,342
+259,822
| +85% | +$23.2M |
|
|
Q
1283
Qnity Electronics Inc
Q
$29.7B
| $57.6M | 0.01% |
+704,894
| New | +$59.9M |
|
|
CRWV
1284
CoreWeave
CRWV
$57.5B
| $57.4M | 0.01% |
802,101
+531,032
| +196% | +$53.8M |
|
1285
PUT
Phillips 66
PSX
$93.3B
| $57.4M | 0.01% |
444,700
+32,100
| +8% | +$4.32M |
|
1286
VanEck Semiconductor ETF
SMH
$72.1B
| $57.3M | 0.01% |
+159,063
| New | +$55.8M |
|
1287
PUT
Boston Scientific
BSX
$75.8B
| $57.2M | 0.01% |
600,000
+96,700
| +19% | +$9.48M |
|
1288
Philip Morris
PM
$295B
| $57.2M | 0.01% |
356,324
-637,738
| -64% | -$98.8M |
|
1289
Kinetik
KNTK
$4.26B
| $57.1M | 0.01% |
1,585,292
+1,538,958
| +3,321% | +$55.6M |
|
1290
CALL
Halliburton
HAL
$28.5B
| $57.1M | 0.01% |
2,021,600
+26,700
| +1% | +$705K |
|
1291
Americold
COLD
$4.29B
| $57M | 0.01% |
4,432,763
+358,394
| +9% | +$4.39M |
|
1292
Gildan
GIL
$10.5B
| $56.8M | 0.01% |
910,145
+127,674
| +16% | +$7.59M |
|
1293
Kirby Corp
KEX
$7.31B
| $56.3M | 0.01% |
510,883
+269,496
| +112% | +$27.4M |
|
1294
CALL
SolarEdge
SEDG
$2.02B
| $56.3M | 0.01% |
1,950,600
-686,400
| -26% | -$23.9M |
|
1295
CALL
NIO
NIO
$11.3B
| $56.1M | 0.01% |
10,998,400
-2,614,500
| -19% | -$16.1M |
|
1296
PennyMac Financial
PFSI
$4.12B
| $56.1M | 0.01% |
425,284
-256,918
| -38% | -$32.7M |
|
1297
PUT
Deckers Outdoor
DECK
$12.8B
| $56.1M | 0.01% |
540,700
+80,500
| +17% | +$7.55M |
|
1298
Duolingo
DUOL
$6.32B
| $56M | 0.01% |
319,143
+89,024
| +39% | +$21M |
|
1299
PUT
Rocket Companies
RKT
$42.2B
| $56M | 0.01% |
2,890,131
-245,226
| -8% | -$4.38M |
|
1300
Clarivate
CLVT
$1.22B
| $55.9M | 0.01% |
16,738,425
-799,059
| -5% | -$2.84M |
|
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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.