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 | |
|---|---|---|---|---|---|---|
2351
Vertex
VERX
$2.06B
| $19.5M | ﹤0.01% |
975,397
+789,418
| +424% | +$17.1M |
|
2352
CALL
Sterling Infrastructure
STRL
$17.6B
| $19.5M | ﹤0.01% |
63,600
-16,300
| -20% | -$5.62M |
|
2353
Dana Inc
DAN
$3.26B
| $19.5M | ﹤0.01% |
819,666
-2,795,547
| -77% | -$59.1M |
|
2354
WillScot Mobile Mini Holdings
WSC
$4.31B
| $19.5M | ﹤0.01% |
1,034,169
+472,876
| +84% | +$9.54M |
|
2355
Kratos Defense & Security Solutions
KTOS
$12.1B
| $19.5M | ﹤0.01% |
256,501
+94,905
| +59% | +$7.77M |
|
|
GAP
2356
PUT
The Gap Inc
GAP
$7.42B
| $19.5M | ﹤0.01% |
760,500
+140,800
| +23% | +$3.41M |
|
2357
PUT
Academy Sports + Outdoors
ASO
$2.98B
| $19.5M | ﹤0.01% |
389,400
-11,000
| -3% | -$546K |
|
2358
PUT
Sanofi
SNY
$105B
| $19.4M | ﹤0.01% |
401,200
+106,200
| +36% | +$5.26M |
|
2359
CALL
uniQure
QURE
$3.37B
| $19.4M | ﹤0.01% |
812,400
+542,400
| +201% | +$20.9M |
|
2360
Qiagen
QGEN
$8.87B
| $19.4M | ﹤0.01% |
432,248
+131,222
| +44% | +$6.07M |
|
2361
CALL
Nutanix
NTNX
$18B
| $19.4M | ﹤0.01% |
375,700
+85,000
| +29% | +$5.19M |
|
2362
PUT
Toyota
TM
$226B
| $19.4M | ﹤0.01% |
90,700
-54,500
| -38% | -$11.1M |
|
2363
New Jersey Resources
NJR
$5.64B
| $19.4M | ﹤0.01% |
420,133
+367,683
| +701% | +$17M |
|
|
USAR
2364
CALL
USA Rare Earth Inc
USAR
$4.89B
| $19.4M | ﹤0.01% |
1,627,400
+126,700
| +8% | +$2.41M |
|
2365
PUT
iShares Gold Trust
IAU
$64.9B
| $19.3M | ﹤0.01% |
238,300
+73,900
| +45% | +$5.78M |
|
2366
CALL
Clear Secure
YOU
$4.68B
| $19.3M | ﹤0.01% |
550,200
-127,500
| -19% | -$4.34M |
|
2367
CarMax
KMX
$8.5B
| $19.3M | ﹤0.01% |
498,371
+106,866
| +27% | +$4.27M |
|
2368
PUT
Sphere Entertainment
SPHR
$6.03B
| $19.2M | ﹤0.01% |
202,400
-35,900
| -15% | -$2.74M |
|
2369
Public Storage
PSA
$60.9B
| $19.2M | ﹤0.01% |
74,126
-266,100
| -78% | -$74.5M |
|
|
SOBO
2370
South Bow Corp
SOBO
$7.67B
| $19.2M | ﹤0.01% |
700,200
+677,279
| +2,955% | +$18.4M |
|
2371
Acadia Healthcare
ACHC
$2.87B
| $19.2M | ﹤0.01% |
1,355,283
+1,024,386
| +310% | +$19.4M |
|
2372
Carter's
CRI
$1.42B
| $19.2M | ﹤0.01% |
592,770
+397,081
| +203% | +$12.4M |
|
2373
Applied Optoelectronics
AAOI
$12.7B
| $19.2M | ﹤0.01% |
551,297
-102,477
| -16% | -$3.06M |
|
2374
Xylem
XYL
$27.9B
| $19.2M | ﹤0.01% |
141,090
-185,780
| -57% | -$26.7M |
|
2375
CALL
Welltower
WELL
$170B
| $19.2M | ﹤0.01% |
103,400
-108,000
| -51% | -$20.2M |
|
Similar funds
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.