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 | |
|---|---|---|---|---|---|---|
|
HOLX
1451
DELISTED
Hologic
HOLX
| $47.6M | 0.01% |
638,642
-2,357,977
| -79% | -$172M |
|
1452
CALL
Five Below
FIVE
$13.5B
| $47.6M | 0.01% |
252,500
-50,000
| -17% | -$8.13M |
|
1453
PUT
Nextpower Inc
NXT
$15.8B
| $47.5M | 0.01% |
545,838
-125,200
| -19% | -$11.4M |
|
1454
CALL
Rockwell Automation
ROK
$49.8B
| $47.5M | 0.01% |
122,200
+42,200
| +53% | +$15.9M |
|
1455
PUT
Direxion Daily 20+ Year Treasury Bull 3X ETF
TMF
$2.11B
| $47.4M | 0.01% |
1,271,120
+1,003,300
| +375% | +$40.6M |
|
1456
CALL
iShares MSCI Mexico ETF
EWW
$1.86B
| $47.4M | 0.01% |
683,100
+327,600
| +92% | +$22.1M |
|
1457
PUT
NIO
NIO
$11.3B
| $47.3M | 0.01% |
9,282,500
-1,334,100
| -13% | -$8.23M |
|
1458
CALL
Kinder Morgan
KMI
$72.7B
| $47.3M | 0.01% |
1,721,400
+143,600
| +9% | +$3.88M |
|
1459
PUT
General Mills
GIS
$20.9B
| $47.3M | 0.01% |
1,017,300
-440,600
| -30% | -$20.9M |
|
1460
PUT
Energy Fuels
UUUU
$3.78B
| $47.3M | 0.01% |
3,250,500
+1,463,200
| +82% | +$24.8M |
|
1461
Inspire Medical Systems
INSP
$1.66B
| $47.2M | 0.01% |
511,318
-1,237,091
| -71% | -$118M |
|
1462
Bankunited
BKU
$3.43B
| $47.1M | 0.01% |
+1,057,685
| New | +$43.8M |
|
1463
PUT
Cheniere Energy
LNG
$56B
| $47.1M | 0.01% |
242,500
-48,400
| -17% | -$10.2M |
|
|
BNY
1464
CALL
Bank of New York Mellon
BNY
$110B
| $47.1M | 0.01% |
405,300
+47,100
| +13% | +$5.21M |
|
|
KEEL
1465
Keel Infrastructure Corp
KEEL
$2.09B
| $47M | 0.01% |
20,018,535
+9,061,288
| +83% | +$31M |
|
1466
PUT
Trump Media & Technology Group
DJT
$2.31B
| $46.8M | 0.01% |
3,536,300
+2,078,000
| +142% | +$28.4M |
|
1467
Targa Resources
TRGP
$59B
| $46.7M | 0.01% |
253,276
+178,258
| +238% | +$30M |
|
1468
CALL
Veeva Systems
VEEV
$40B
| $46.7M | 0.01% |
209,200
-99,400
| -32% | -$26.4M |
|
1469
Urban Edge Properties
UE
$2.77B
| $46.7M | 0.01% |
2,431,424
+1,203,430
| +98% | +$23.4M |
|
|
FIG
1470
CALL
Figma
FIG
$13.6B
| $46.6M | 0.01% |
1,247,000
-327,000
| -21% | -$14.8M |
|
1471
Qorvo
QRVO
$8.58B
| $46.5M | 0.01% |
550,658
+491,823
| +836% | +$43.4M |
|
1472
Royal Caribbean
RCL
$82.3B
| $46.4M | 0.01% |
166,411
+109,537
| +193% | +$30.9M |
|
1473
Diamondback Energy
FANG
$56.7B
| $46.3M | 0.01% |
308,089
-539,080
| -64% | -$79.5M |
|
1474
Fox Class B
FOX
$25.6B
| $46.3M | 0.01% |
712,959
-142,597
| -17% | -$8.32M |
|
1475
CALL
Chewy
CHWY
$9.15B
| $46.3M | 0.01% |
1,399,400
+85,900
| +7% | +$2.98M |
|
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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.