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 | |
|---|---|---|---|---|---|---|
11201
Smartbird Inc
BIRD
$30.1M
| $159K | ﹤0.01% |
+38,834
| New | +$220K |
|
|
GIFI
11202
CALL
DELISTED
Gulf Island Fabrication
GIFI
| $159K | ﹤0.01% |
+13,300
| New | +$134K |
|
11203
Acco Brands
ACCO
$401M
| $159K | ﹤0.01% |
+42,674
| New | +$158K |
|
11204
CALL
Prenetics Global
PRE
$331M
| $159K | ﹤0.01% |
+10,100
| New | +$147K |
|
|
BFZ
11205
DELISTED
BlackRock CA Municipal Income Trust
BFZ
| $159K | ﹤0.01% |
+14,806
| New | +$161K |
|
11206
PUT
GraniteShares HIPS US High Income ETF
HIPS
$120M
| $159K | ﹤0.01% |
+13,600
| New | +$159K |
|
|
TUYA
11207
PUT
Tuya Inc
TUYA
$1.12B
| $159K | ﹤0.01% |
75,200
-33,500
| -31% | -$76.3K |
|
|
SYBX
11208
DELISTED
Synlogic
SYBX
| $159K | ﹤0.01% |
141,608
+112,597
| +388% | +$169K |
|
11209
CALL
Corsair Gaming
CRSR
$1.41B
| $159K | ﹤0.01% |
26,700
-10,100
| -27% | -$70.2K |
|
11210
CALL
Televisa
TV
$1.53B
| $159K | ﹤0.01% |
+54,500
| New | +$149K |
|
11211
PUT
Driven Brands
DRVN
$2.13B
| $159K | ﹤0.01% |
10,700
-10,100
| -49% | -$150K |
|
11212
CALL
AC Immune
ACIU
$248M
| $159K | ﹤0.01% |
+50,500
| New | +$159K |
|
|
COYY
11213
GraniteShares YieldBOOST COIN ETF
COYY
$18.3M
| $158K | ﹤0.01% |
+3,359
| New | +$244K |
|
|
PEW
11214
PUT
GrabAGun Digital Holdings
PEW
$75.3M
| $158K | ﹤0.01% |
52,500
-159,500
| -75% | -$636K |
|
11215
CALL
American Coastal Insurance
ACIC
$466M
| $158K | ﹤0.01% |
12,500
-85,600
| -87% | -$1.03M |
|
11216
CALL
Sky Harbour Group
SKYH
$395M
| $158K | ﹤0.01% |
17,600
+6,300
| +56% | +$60.2K |
|
11217
PUT
Ardmore Shipping
ASC
$719M
| $158K | ﹤0.01% |
14,900
-34,400
| -70% | -$409K |
|
|
SAFE
11218
CALL
Safehold
SAFE
$1.08B
| $157K | ﹤0.01% |
11,500
-135,600
| -92% | -$1.93M |
|
11219
CALL
Adtran
ADTN
$684M
| $157K | ﹤0.01% |
18,100
-72,000
| -80% | -$625K |
|
11220
CALL
Protara Therapeutics
TARA
$235M
| $157K | ﹤0.01% |
29,500
+16,500
| +127% | +$91.7K |
|
|
NBP
11221
PUT
NovaBridge Biosciences American Depositary Shares
NBP
$227M
| $157K | ﹤0.01% |
39,500
-2,800
| -7% | -$12.4K |
|
11222
Gaia
GAIA
$37.1M
| $157K | ﹤0.01% |
+43,295
| New | +$198K |
|
|
RA
11223
Brookfield Real Assets Income Fund
RA
$706M
| $157K | ﹤0.01% |
+12,082
| New | +$159K |
|
11224
Spire Global
SPIR
$567M
| $157K | ﹤0.01% |
20,872
-130,067
| -86% | -$1.27M |
|
11225
CALL
GH Research
GHRS
$2.02B
| $156K | ﹤0.01% |
+12,300
| New | +$168K |
|
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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.