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 | |
|---|---|---|---|---|---|---|
6226
Editas Medicine
EDIT
$436M
| $1.68M | ﹤0.01% |
820,993
+458,800
| +127% | +$1.32M |
|
6227
CALL
SandRidge Energy
SD
$531M
| $1.68M | ﹤0.01% |
116,500
+12,600
| +12% | +$167K |
|
6228
CALL
US Physical Therapy
USPH
$1.17B
| $1.68M | ﹤0.01% |
+21,500
| New | +$1.74M |
|
6229
First Trust Asia Pacific ex-Japan AlphaDEX Fund
FPA
$114M
| $1.68M | ﹤0.01% |
+44,899
| New | +$1.71M |
|
6230
Myriad Genetics
MYGN
$292M
| $1.68M | ﹤0.01% |
272,771
-299,379
| -52% | -$2.17M |
|
|
IMSR
6231
CALL
Terrestrial Energy
IMSR
$617M
| $1.68M | ﹤0.01% |
274,500
+73,400
| +36% | +$981K |
|
6232
CALL
Digital Turbine
APPS
$1.48B
| $1.68M | ﹤0.01% |
335,400
-73,000
| -18% | -$413K |
|
|
LB
6233
CALL
LandBridge Co
LB
$2.26B
| $1.68M | ﹤0.01% |
34,200
-13,300
| -28% | -$773K |
|
6234
PUT
Global Net Lease
GNL
$2.04B
| $1.67M | ﹤0.01% |
194,700
-1,300
| -0.7% | -$10.4K |
|
|
KYIV
6235
CALL
Kyivstar Group
KYIV
$3.03B
| $1.67M | ﹤0.01% |
128,800
+27,900
| +28% | +$368K |
|
6236
Amer Sports
AS
$18.9B
| $1.67M | ﹤0.01% |
44,755
-783,175
| -95% | -$26.9M |
|
6237
PIMCO RAFI Dynamic Multi-Factor US Equity ETF
MFUS
$305M
| $1.67M | ﹤0.01% |
29,496
-53,687
| -65% | -$3.01M |
|
6238
Pediatrix Medical
MD
$2.14B
| $1.67M | ﹤0.01% |
78,060
-14,392
| -16% | -$295K |
|
|
ITRG
6239
Integra Resources
ITRG
$556M
| $1.67M | ﹤0.01% |
416,352
-344,649
| -45% | -$1.16M |
|
6240
CALL
ArcBest
ARCB
$3.26B
| $1.67M | ﹤0.01% |
22,500
-17,700
| -44% | -$1.26M |
|
6241
PUT
iShares MSCI France ETF
EWQ
$339M
| $1.67M | ﹤0.01% |
+37,100
| New | +$1.65M |
|
|
LAR
6242
CALL
Lithium Argentina AG
LAR
$1.08B
| $1.67M | ﹤0.01% |
299,100
+207,500
| +227% | +$985K |
|
6243
PUT
ProShares Short Bitcoin Strategy ETF
BITI
$119M
| $1.67M | ﹤0.01% |
72,000
+21,300
| +42% | +$445K |
|
6244
MacroGenics
MGNX
$258M
| $1.67M | ﹤0.01% |
1,035,153
+541,622
| +110% | +$852K |
|
6245
Invesco FTSE RAFI Developed Markets ex-US Small-Mid ETF
PDN
$369M
| $1.67M | ﹤0.01% |
39,488
-28,424
| -42% | -$1.18M |
|
6246
Wabash National
WNC
$519M
| $1.67M | ﹤0.01% |
192,524
+138,956
| +259% | +$1.21M |
|
|
PDM
6247
Piedmont Realty Trust
PDM
$1.17B
| $1.66M | ﹤0.01% |
+199,631
| New | +$1.67M |
|
6248
PUT
Kimco Realty
KIM
$16.3B
| $1.66M | ﹤0.01% |
82,100
-18,400
| -18% | -$382K |
|
6249
CALL
Assurant
AIZ
$13.9B
| $1.66M | ﹤0.01% |
6,900
-700
| -9% | -$156K |
|
6250
CALL
Lear
LEA
$8.31B
| $1.66M | ﹤0.01% |
14,500
-1,600
| -10% | -$171K |
|
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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.