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 | |
|---|---|---|---|---|---|---|
|
EPSM
11976
Epsium Enterprise
EPSM
$20M
| $51.5K | ﹤0.01% |
+25,745
| New | +$294K |
|
11977
CALL
Alector
ALEC
$219M
| $51.3K | ﹤0.01% |
32,900
+16,100
| +96% | +$28.6K |
|
11978
CALL
GrowGeneration
GRWG
$104M
| $51.3K | ﹤0.01% |
34,200
-17,400
| -34% | -$28.6K |
|
|
LGPS
11979
LogProstyle Inc
LGPS
$20.5M
| $51.2K | ﹤0.01% |
52,806
+8,122
| +18% | +$8.55K |
|
|
BMNG
11980
PUT
Leverage Shares 2X Long BMNR Daily ETF
BMNG
$37.2M
| $51.2K | ﹤0.01% |
+805
| New | +$106K |
|
|
RECT
11981
Rectitude Holdings
RECT
$19.5M
| $51K | ﹤0.01% |
+28,997
| New | +$71.3K |
|
11982
CALL
Pliant Therapeutics
PLRX
$66.3M
| $51K | ﹤0.01% |
41,800
+27,300
| +188% | +$41K |
|
11983
CALL
Treace Medical Concepts
TMCI
$312M
| $51K | ﹤0.01% |
+20,800
| New | +$90.3K |
|
|
WIMI
11984
CALL
WiMi Hologram Cloud
WIMI
$25M
| $51K | ﹤0.01% |
21,500
-22,890
| -52% | -$77.7K |
|
11985
Mobix Labs
MOBX
$19.3M
| $50.7K | ﹤0.01% |
+18,973
| New | +$119K |
|
11986
CALL
Atossa Therapeutics
ATOS
$25.9M
| $50.6K | ﹤0.01% |
5,720
+4,040
| +240% | +$51.1K |
|
11987
Context Therapeutics
CNTX
$48M
| $50.5K | ﹤0.01% |
34,380
-68,983
| -67% | -$80.6K |
|
11988
CALL
Broadwind
BWEN
$127M
| $50.4K | ﹤0.01% |
17,800
+4,900
| +38% | +$12.9K |
|
|
SNT
11989
Senstar Technologies
SNT
$42.9M
| $50.2K | ﹤0.01% |
10,396
-37,259
| -78% | -$160K |
|
11990
PUT
FingerMotion
FNGR
$18.7M
| $50.1K | ﹤0.01% |
40,700
+19,700
| +94% | +$29.2K |
|
11991
System1
SST
$24.6M
| $50K | ﹤0.01% |
12,759
+2,703
| +27% | +$14K |
|
11992
Cryo-Cell International
CCEL
$31.9M
| $50K | ﹤0.01% |
14,525
+3,127
| +27% | +$13K |
|
11993
PUT
Solana Company
HSDT
$99.3M
| $49.7K | ﹤0.01% |
+17,200
| New | +$114K |
|
11994
Vivani Medical
VANI
$126M
| $49.7K | ﹤0.01% |
40,409
+22,043
| +120% | +$31.9K |
|
11995
PUT
Protalix BioTherapeutics
PLX
$179M
| $49.7K | ﹤0.01% |
27,600
+11,800
| +75% | +$24.1K |
|
11996
CALL
Fuel Tech
FTEK
$45.3M
| $49.6K | ﹤0.01% |
31,800
-93,100
| -75% | -$205K |
|
11997
CALL
Immunic
IMUX
$219M
| $49.5K | ﹤0.01% |
9,280
+5,200
| +127% | +$38.1K |
|
11998
CVD Equipment Corp
CVV
$56.1M
| $49.3K | ﹤0.01% |
15,940
-25,442
| -61% | -$88.5K |
|
|
BKHAR
11999
Black Hawk Acquisition Corp Rights
BKHAR
| $49.1K | ﹤0.01% |
37,781
-6,559
| -15% | -$9.06K |
|
12000
CALL
Upland Software
UPLD
$15.7M
| $49K | ﹤0.01% |
3,430
+560
| +20% | +$10.7K |
|
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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.