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 | |
|---|---|---|---|---|---|---|
|
IMRN
12126
Immuron
IMRN
$8.88M
| $34.9K | ﹤0.01% |
45,782
+26,220
| +134% | +$43.2K |
|
12127
PUT
ProKidney
PROK
$278M
| $34.7K | ﹤0.01% |
15,500
-29,800
| -66% | -$78.4K |
|
12128
Bit Origin
BTOG
$3.41M
| $34.6K | ﹤0.01% |
+3,358
| New | +$62.6K |
|
12129
Lucas GC Ltd
LGCL
$62M
| $34.6K | ﹤0.01% |
15,516
+11,663
| +303% | +$35.1K |
|
12130
Wah Fu Education Group
WAFU
$6.13M
| $34.5K | ﹤0.01% |
+22,408
| New | +$38.6K |
|
12131
CALL
Dolphin Entertainment
DLPN
$15.6M
| $34.5K | ﹤0.01% |
+22,100
| New | +$34.8K |
|
|
CURX
12132
Curanex Pharmaceuticals
CURX
$6.17M
| $34.5K | ﹤0.01% |
104,278
+40,211
| +63% | +$22.1K |
|
12133
PUT
Flux Power
FLUX
$12.7M
| $34.4K | ﹤0.01% |
27,100
+4,100
| +18% | +$12.1K |
|
12134
CALL
BRC Inc
BRCC
$213M
| $34.4K | ﹤0.01% |
31,000
-100
| -0.3% | -$130 |
|
|
SKK
12135
SKK Holdings
SKK
$10.5M
| $34.4K | ﹤0.01% |
12,419
+763
| +7% | +$2.62K |
|
12136
Asia Pacific Wire & Cable
APWC
$62.7M
| $34.3K | ﹤0.01% |
+18,229
| New | +$33.8K |
|
|
AGEN
12137
PUT
Agenus
AGEN
$329M
| $34.2K | ﹤0.01% |
10,900
-25,900
| -70% | -$103K |
|
12138
CALL
Aware
AWRE
$26.4M
| $34.2K | ﹤0.01% |
+18,400
| New | +$41.6K |
|
12139
Creative Medical Technology
CELZ
$8.04M
| $34.2K | ﹤0.01% |
+17,460
| New | +$51.6K |
|
|
BLRX
12140
PUT
BioLineRX
BLRX
$12M
| $34.2K | ﹤0.01% |
+12,000
| New | +$41.5K |
|
12141
BioRestorative Therapies
BRTX
$5.76M
| $34.2K | ﹤0.01% |
29,198
-77,012
| -73% | -$103K |
|
|
LGO
12142
CALL
Largo
LGO
$74.1M
| $33.9K | ﹤0.01% |
+36,200
| New | +$43K |
|
12143
CALL
Definitive Healthcare
DH
$68.2M
| $33.9K | ﹤0.01% |
11,800
-500
| -4% | -$1.39K |
|
12144
PUT
BuzzFeed
BZFD
$92.5M
| $33.9K | ﹤0.01% |
36,400
-1,200
| -3% | -$1.52K |
|
12145
Equus Total Return
EQS
$16M
| $33.8K | ﹤0.01% |
+23,884
| New | +$44.8K |
|
|
AURE
12146
Aurelion Inc
AURE
$65.1M
| $33.8K | ﹤0.01% |
13,525
+6,837
| +102% | +$35.3K |
|
|
FENG
12147
Phoenix New Media
FENG
$18.9M
| $33.7K | ﹤0.01% |
20,199
+4,205
| +26% | +$9.28K |
|
12148
CALL
TherapeuticsMD
TXMD
$24M
| $33.6K | ﹤0.01% |
+20,600
| New | +$29.8K |
|
12149
NeuroOne Medical Technologies
NMTC
$17.7M
| $33.6K | ﹤0.01% |
7,382
-26,998
| -79% | -$123K |
|
|
HEPS
12150
CALL
D-Market Electronic Services & Trading
HEPS
$997M
| $33.5K | ﹤0.01% |
+13,500
| New | +$33.5K |
|
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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.