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 | |
|---|---|---|---|---|---|---|
11801
PUT
Biomea Fusion
BMEA
$95.7M
| $73.9K | ﹤0.01% |
59,600
-55,600
| -48% | -$77.9K |
|
11802
CALL
RLX Technology
RLX
$2.37B
| $73.9K | ﹤0.01% |
31,700
+5,400
| +21% | +$12.9K |
|
11803
Perfect Corp
PERF
$190M
| $73.8K | ﹤0.01% |
+40,789
| New | +$75.8K |
|
11804
PUT
Radiant Logistics
RLGT
$408M
| $73.4K | ﹤0.01% |
11,600
-50,500
| -81% | -$313K |
|
11805
Cabaletta Bio
CABA
$466M
| $73.4K | ﹤0.01% |
33,502
-671,963
| -95% | -$1.67M |
|
11806
CALL
Playtika
PLTK
$957M
| $73.1K | ﹤0.01% |
18,500
+7,800
| +73% | +$30.5K |
|
11807
Expensify
EXFY
$210M
| $72.8K | ﹤0.01% |
48,231
-148,431
| -75% | -$235K |
|
11808
PUT
Information Services Group
III
$250M
| $72.8K | ﹤0.01% |
+12,600
| New | +$70.7K |
|
11809
Dawson Geophysical
DWSN
$99.1M
| $72.5K | ﹤0.01% |
46,470
-14,129
| -23% | -$26.7K |
|
11810
Pasithea Therapeutics
KTTA
$16.1M
| $72.5K | ﹤0.01% |
56,183
-11,158
| -17% | -$9.8K |
|
|
LITS
11811
CALL
Lite Strategy Inc
LITS
$30.2M
| $72.5K | ﹤0.01% |
54,900
-12,600
| -19% | -$23.8K |
|
11812
CALL
Neuronetics
STIM
$230M
| $72.5K | ﹤0.01% |
52,500
+22,700
| +76% | +$47.5K |
|
|
OPENL
11813
Opendoor Technologies Inc Series A Warrants
OPENL
$5.16M
| $72.3K | ﹤0.01% |
+139,037
| New | +$119K |
|
11814
CALL
Getty Images
GETY
$129M
| $72.2K | ﹤0.01% |
53,900
-41,500
| -44% | -$71.4K |
|
11815
CALL
SunCoke Energy
SXC
$794M
| $72K | ﹤0.01% |
10,000
-700
| -7% | -$5.15K |
|
11816
PUT
Alta Equipment Group
ALTG
$237M
| $71.3K | ﹤0.01% |
15,500
-5,000
| -24% | -$27.5K |
|
11817
CALL
INmune Bio
INMB
$60.2M
| $71.3K | ﹤0.01% |
45,700
-154,900
| -77% | -$276K |
|
|
DJTU
11818
CALL
T-REX 2X Long DJT Daily Target ETF
DJTU
$8.82M
| $71.1K | ﹤0.01% |
+1,810
| New | +$93.7K |
|
11819
Beamr Imaging
BMR
$20.5M
| $71K | ﹤0.01% |
+45,209
| New | +$108K |
|
|
NMG
11820
CALL
Nouveau Monde Graphite
NMG
$484M
| $70.9K | ﹤0.01% |
28,600
+16,800
| +142% | +$49.2K |
|
|
RGNT
11821
Regentis Biomaterials
RGNT
$14M
| $70.2K | ﹤0.01% |
+10,412
| New | +$71.4K |
|
|
CAPT
11822
DELISTED
Captivision
CAPT
| $69.9K | ﹤0.01% |
203,750
+190,056
| +1,388% | +$135K |
|
|
MYSE
11823
Myseum.AI Inc
MYSE
$13.8M
| $69.8K | ﹤0.01% |
+41,283
| New | +$98.5K |
|
11824
PUT
DocGo
DCGO
$65.9M
| $69.7K | ﹤0.01% |
+79,400
| New | +$84.8K |
|
11825
Avita Medical
RCEL
$243M
| $69.7K | ﹤0.01% |
+20,190
| New | +$80.6K |
|
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.