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 | |
|---|---|---|---|---|---|---|
6476
PUT
FuelCell Energy
FCEL
$1.79B
| $1.5M | ﹤0.01% |
204,900
-122,100
| -37% | -$998K |
|
6477
Federal Agricultural Mortgage
AGM
$2.51B
| $1.5M | ﹤0.01% |
8,530
-25,474
| -75% | -$4.28M |
|
6478
Celldex Therapeutics
CLDX
$3.29B
| $1.5M | ﹤0.01% |
55,101
-264,231
| -83% | -$6.96M |
|
6479
Bank First Corp
BFC
$1.75B
| $1.5M | ﹤0.01% |
+12,281
| New | +$1.56M |
|
6480
PUT
Immunovant
IMVT
$8.64B
| $1.49M | ﹤0.01% |
58,800
-31,800
| -35% | -$709K |
|
6481
PUT
Gold Royalty Corp
GROY
$741M
| $1.49M | ﹤0.01% |
369,500
+156,500
| +73% | +$599K |
|
6482
Riskified
RSKD
$843M
| $1.49M | ﹤0.01% |
300,226
+172,785
| +136% | +$832K |
|
6483
Byrna Technologies
BYRN
$90.3M
| $1.49M | ﹤0.01% |
88,818
-163,376
| -65% | -$3.18M |
|
|
6484
FuelCell Energy
FCEL
$1.79B
| $1.49M | ﹤0.01% |
203,964
+157,307
| +337% | +$1.29M |
|
|
GRNY
6485
PUT
FundStrat Granny Shots US Large Cap ETF
GRNY
$4.44B
| $1.49M | ﹤0.01% |
60,200
+17,500
| +41% | +$440K |
|
6486
Unicycive Therapeutics
UNCY
$155M
| $1.49M | ﹤0.01% |
258,301
+216,627
| +520% | +$1.16M |
|
|
SVM
6487
CALL
Silvercorp Metals
SVM
$2.64B
| $1.49M | ﹤0.01% |
178,700
-43,300
| -20% | -$315K |
|
|
MFSB
6488
MFS Active Core Plus Bond ETF
MFSB
$536M
| $1.49M | ﹤0.01% |
59,082
-33,030
| -36% | -$836K |
|
6489
Fidelity Stocks for Inflation ETF
FCPI
$285M
| $1.49M | ﹤0.01% |
30,098
+7,946
| +36% | +$397K |
|
6490
PUT
Pampa Energía
PAM
$4.23B
| $1.49M | ﹤0.01% |
16,800
-168,700
| -91% | -$13.6M |
|
|
ATXS
6491
DELISTED
Astria Therapeutics
ATXS
| $1.49M | ﹤0.01% |
113,555
-735,427
| -87% | -$8.78M |
|
6492
CALL
American Battery Technology Co
ABAT
$331M
| $1.49M | ﹤0.01% |
444,800
+160,100
| +56% | +$749K |
|
6493
CALL
Global X Robotics & Artificial Intelligence ETF
BOTZ
$3.6B
| $1.49M | ﹤0.01% |
41,000
-15,200
| -27% | -$551K |
|
|
DRD
6494
CALL
DRDGold
DRD
$2.13B
| $1.49M | ﹤0.01% |
47,900
-22,300
| -32% | -$637K |
|
6495
PUT
Array Technologies
ARRY
$767M
| $1.48M | ﹤0.01% |
161,000
-16,600
| -9% | -$142K |
|
6496
PUT
Immunome
IMNM
$3.11B
| $1.48M | ﹤0.01% |
69,100
+49,500
| +253% | +$869K |
|
|
SLN
6497
Silence Therapeutics
SLN
$678M
| $1.48M | ﹤0.01% |
244,061
+222,556
| +1,035% | +$1.42M |
|
6498
ActivePassive US Equity ETF
APUE
$2.51B
| $1.48M | ﹤0.01% |
35,553
+14,502
| +69% | +$600K |
|
6499
CALL
Bakkt Inc
BKKT
$321M
| $1.48M | ﹤0.01% |
147,532
-162,452
| -52% | -$3.59M |
|
6500
PUT
AMN Healthcare
AMN
$1.34B
| $1.48M | ﹤0.01% |
93,900
-400
| -0.4% | -$7.14K |
|
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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.