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 | |
|---|---|---|---|---|---|---|
|
BLDP
3351
Ballard Power Systems
BLDP
$814M
| $9.14M | ﹤0.01% |
3,598,614
+2,458,113
| +216% | +$7.62M |
|
|
KRMN
3352
PUT
Karman Holdings
KRMN
$8.22B
| $9.14M | ﹤0.01% |
124,900
+71,600
| +134% | +$5.18M |
|
3353
CALL
Alignment Healthcare
ALHC
$2.9B
| $9.14M | ﹤0.01% |
462,700
-90,100
| -16% | -$1.62M |
|
3354
ABM Industries
ABM
$2.82B
| $9.14M | ﹤0.01% |
216,035
+61,491
| +40% | +$2.7M |
|
3355
Teledyne Technologies
TDY
$31.5B
| $9.13M | ﹤0.01% |
17,879
+8,189
| +85% | +$4.31M |
|
3356
Surgery Partners
SGRY
$1.97B
| $9.11M | ﹤0.01% |
589,821
+555,261
| +1,607% | +$10.2M |
|
3357
CALL
Box
BOX
$4.52B
| $9.09M | ﹤0.01% |
304,000
-160,700
| -35% | -$5.04M |
|
|
LBRX
3358
LB Pharmaceuticals
LBRX
$1.54B
| $9.07M | ﹤0.01% |
407,668
-131,702
| -24% | -$2.3M |
|
3359
Rayonier
RYN
$6.49B
| $9.06M | ﹤0.01% |
418,579
+222,269
| +113% | +$5.03M |
|
3360
CALL
Ingersoll Rand
IR
$32.3B
| $9.05M | ﹤0.01% |
114,300
-77,000
| -40% | -$6.08M |
|
3361
CALL
ProShares Short S&P500
SH
$841M
| $9.05M | ﹤0.01% |
251,200
+71,400
| +40% | +$2.62M |
|
3362
CALL
Direxion Daily 20+ Year Treasury Bear 3X ETF
TMV
$195M
| $9.05M | ﹤0.01% |
243,500
+7,800
| +3% | +$271K |
|
3363
CALL
Bitwise Bitcoin ETF
BITB
$2.41B
| $9.05M | ﹤0.01% |
190,200
+55,000
| +41% | +$2.99M |
|
3364
CALL
Conagra Brands
CAG
$7.5B
| $9.03M | ﹤0.01% |
521,900
+127,400
| +32% | +$2.26M |
|
3365
CALL
Builders FirstSource
BLDR
$7.8B
| $9.03M | ﹤0.01% |
87,800
-14,700
| -14% | -$1.65M |
|
3366
CALL
Ovintiv
OVV
$17.4B
| $9.03M | ﹤0.01% |
230,500
+84,400
| +58% | +$3.27M |
|
3367
SouthState Bank Corp
SSB
$10.8B
| $9.03M | ﹤0.01% |
95,935
-1,812,457
| -95% | -$168M |
|
|
PCL
3368
PGIM Corporate Bond 10+ Year ETF
PCL
$73.9M
| $9.02M | ﹤0.01% |
179,163
-19,959
| -10% | -$1.03M |
|
|
ETH
3369
PUT
Grayscale Ethereum Staking Mini ETF Shares
ETH
$1.72B
| $9.01M | ﹤0.01% |
321,100
-248,600
| -44% | -$8.1M |
|
3370
PUT
Vista Energy
VIST
$7.56B
| $9.01M | ﹤0.01% |
185,100
-140,300
| -43% | -$6.34M |
|
3371
Brown & Brown
BRO
$23.6B
| $8.99M | ﹤0.01% |
112,759
+52,308
| +87% | +$4.36M |
|
3372
CALL
Ventas
VTR
$46.9B
| $8.97M | ﹤0.01% |
115,900
+44,200
| +62% | +$3.33M |
|
3373
CALL
M&T Bank
MTB
$36.7B
| $8.97M | ﹤0.01% |
44,500
+3,000
| +7% | +$573K |
|
3374
Ambev
ABEV
$43.2B
| $8.96M | ﹤0.01% |
3,628,812
+3,595,069
| +10,654% | +$8.56M |
|
|
SERV
3375
CALL
Serve Robotics
SERV
$433M
| $8.95M | ﹤0.01% |
862,700
-78,800
| -8% | -$946K |
|
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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.