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 | |
|---|---|---|---|---|---|---|
|
TE
1501
T1 Energy
TE
$1.53B
| $45.5M | 0.01% |
6,805,877
+6,478,078
| +1,976% | +$28.6M |
|
1502
ARK Innovation ETF
ARKK
$6.43B
| $45.5M | 0.01% |
590,925
+342,881
| +138% | +$28.4M |
|
1503
CALL
Ambarella
AMBA
$3.58B
| $45.4M | 0.01% |
641,500
+52,700
| +9% | +$4.26M |
|
1504
Laureate Education
LAUR
$5.15B
| $45.4M | 0.01% |
1,348,870
+914,967
| +211% | +$28.2M |
|
1505
PUT
Public Storage
PSA
$60.8B
| $45.4M | 0.01% |
174,800
+136,100
| +352% | +$38.1M |
|
|
1506
PUT
DexCom
DXCM
$33.9B
| $45.3M | 0.01% |
683,000
+269,900
| +65% | +$17.4M |
|
1507
PUT
Maplebear
CART
$11.2B
| $45.1M | 0.01% |
1,003,000
+440,300
| +78% | +$18M |
|
1508
PUT
Autodesk
ADSK
$53.4B
| $45.1M | 0.01% |
152,400
-19,400
| -11% | -$5.87M |
|
1509
PUT
Norwegian Cruise Line
NCLH
$8.76B
| $45.1M | 0.01% |
2,020,300
-419,800
| -17% | -$8.86M |
|
1510
CALL
State Street Communication Services Select Sector SPDR ETF
XLC
$22.8B
| $45M | 0.01% |
382,000
+133,100
| +53% | +$15.3M |
|
1511
PUT
iShares Biotechnology ETF
IBB
$9.72B
| $45M | 0.01% |
266,400
+32,500
| +14% | +$5.28M |
|
1512
CALL
Global Payments
GPN
$24.5B
| $44.9M | 0.01% |
579,600
+314,100
| +118% | +$25.3M |
|
1513
CALL
e.l.f. Beauty
ELF
$5.46B
| $44.8M | 0.01% |
589,300
-225,000
| -28% | -$22.1M |
|
|
SION
1514
Sionna Therapeutics
SION
$293M
| $44.7M | 0.01% |
1,087,325
+1,051,402
| +2,927% | +$39.9M |
|
1515
GraniteShares ETF Trust GraniteShares 2x Long NVDA Daily ETF
NVDL
$3.88B
| $44.7M | 0.01% |
1,524,306
+1,285,254
| +538% | +$38.8M |
|
1516
PUT
Quanta Services
PWR
$104B
| $44.6M | 0.01% |
105,600
+32,500
| +44% | +$14.3M |
|
1517
CALL
Kraft Heinz
KHC
$30.1B
| $44.6M | 0.01% |
1,837,600
+581,300
| +46% | +$14.5M |
|
1518
Kenvue
KVUE
$36.9B
| $44.5M | 0.01% |
2,580,658
-15,730,933
| -86% | -$257M |
|
1519
Opendoor
OPEN
$3.56B
| $44.5M | 0.01% |
7,631,932
+6,475,460
| +560% | +$46.4M |
|
1520
Bath & Body Works
BBWI
$3.88B
| $44.5M | 0.01% |
2,215,472
+715,501
| +48% | +$15.8M |
|
1521
Eastern Bankshares
EBC
$5.4B
| $44.4M | 0.01% |
2,408,212
+2,337,266
| +3,294% | +$42.8M |
|
1522
KKR & Co
KKR
$102B
| $44.3M | 0.01% |
347,848
-527,467
| -60% | -$65.6M |
|
|
CON
1523
Concentra Group Holdings
CON
$4.51B
| $44.3M | 0.01% |
2,250,729
+1,061,587
| +89% | +$21.2M |
|
1524
Old Dominion Freight Line
ODFL
$43.8B
| $44.2M | 0.01% |
282,070
-524,672
| -65% | -$75.2M |
|
1525
Seadrill
SDRL
$2.99B
| $44.2M | 0.01% |
1,277,292
+1,209,679
| +1,789% | +$37.7M |
|
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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.