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 | |
|---|---|---|---|---|---|---|
|
TBHC
12351
PUT
DELISTED
The Brand House Collective
TBHC
| $15.1K | ﹤0.01% |
+13,700
| New | +$19K |
|
12352
CALL
Talphera
TLPH
$63.8M
| $15K | ﹤0.01% |
13,200
-2,200
| -14% | -$2.65K |
|
12353
Zhongchao
ZCMD
$6.16M
| $15K | ﹤0.01% |
45
+20
| +80% | +$10.3K |
|
12354
Bullfrog AI
BFRG
$10.5M
| $15K | ﹤0.01% |
16,937
+1,912
| +13% | +$2.23K |
|
|
BYAH
12355
Park Ha Biological Technology Co
BYAH
$2.63M
| $14.9K | ﹤0.01% |
+235
| New | +$28.5K |
|
|
ZTEK
12356
Zentek
ZTEK
$77.3M
| $14.9K | ﹤0.01% |
+23,240
| New | +$17.8K |
|
|
DKI
12357
DarkIris Inc
DKI
$8.6M
| $14.4K | ﹤0.01% |
+2,777
| New | +$24.8K |
|
|
QUCY
12358
Quantum Cyber N.V.
QUCY
$33.7M
| $14.2K | ﹤0.01% |
+12,643
| New | +$16.6K |
|
|
GMHS
12359
Gamehaus Holdings
GMHS
$43.3M
| $14.1K | ﹤0.01% |
+15,319
| New | +$17.4K |
|
12360
PUT
Rackspace Technology
RXT
$1.07B
| $14.1K | ﹤0.01% |
14,500
+1,100
| +8% | +$1.38K |
|
12361
Trio Petroleum
TPET
$10.9M
| $13.8K | ﹤0.01% |
+17,405
| New | +$16.5K |
|
12362
bioAffinity Technologies
BIAF
$2.73M
| $13.7K | ﹤0.01% |
+11,631
| New | +$23.2K |
|
|
NVNO
12363
enVVeno Medical
NVNO
$7.5M
| $13.7K | ﹤0.01% |
1,221
-345
| -22% | -$6.7K |
|
12364
PUT
Vivani Medical
VANI
$121M
| $13.5K | ﹤0.01% |
+11,000
| New | +$15.9K |
|
|
APLT
12365
PUT
DELISTED
Applied Therapeutics
APLT
| $13.5K | ﹤0.01% |
135,000
-33,500
| -20% | -$21.3K |
|
12366
PUT
Skye Bioscience
SKYE
$17.6M
| $13.5K | ﹤0.01% |
+18,000
| New | +$26.3K |
|
12367
Ohmyhome Ltd
OMH
$7.67M
| $13.4K | ﹤0.01% |
16,571
-1,167
| -7% | -$1.23K |
|
12368
CALL
Harvard Bioscience
HBIO
$30.3M
| $12.9K | ﹤0.01% |
1,930
-2,310
| -54% | -$13.7K |
|
12369
Urban One Class A
UONE
$23.3M
| $12.9K | ﹤0.01% |
+1,250
| New | +$15.4K |
|
12370
AEON Biopharma
AEON
$13.4M
| $12.8K | ﹤0.01% |
+11,642
| New | +$10.9K |
|
|
NCT
12371
Intercont (Cayman) Ltd
NCT
$35.2M
| $12.7K | ﹤0.01% |
+2,653
| New | +$55.5K |
|
12372
PUT
Agilon Health
AGL
$1.63B
| $12.5K | ﹤0.01% |
724
-4,988
| -87% | -$96.7K |
|
|
MRNO
12373
Murano Global Investments
MRNO
$18.6M
| $12.4K | ﹤0.01% |
+21,407
| New | +$42.2K |
|
|
WXM
12374
WF International Ltd
WXM
$14.1M
| $12.1K | ﹤0.01% |
+2,371
| New | +$39K |
|
|
BMGL
12375
Basel Medical
BMGL
$8.23M
| $12.1K | ﹤0.01% |
2,056
-5,694
| -73% | -$84.1K |
|
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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.