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 | |
|---|---|---|---|---|---|---|
11451
CALL
PepGen
PEPG
$207M
| $120K | ﹤0.01% |
18,500
-2,900
| -14% | -$15.1K |
|
11452
PUT
MidCap Financial Investment
MFIC
$803M
| $120K | ﹤0.01% |
+10,500
| New | +$125K |
|
|
HFRO
11453
Highland Opportunities and Income Fund
HFRO
$400M
| $120K | ﹤0.01% |
+20,046
| New | +$126K |
|
11454
CALL
DocGo
DCGO
$65.9M
| $119K | ﹤0.01% |
136,100
+123,500
| +980% | +$132K |
|
11455
CALL
Mitek Systems
MITK
$877M
| $119K | ﹤0.01% |
11,300
-79,700
| -88% | -$753K |
|
|
SMUP
11456
T-REX 2X Long SMR Daily Target ETF
SMUP
$7.95M
| $119K | ﹤0.01% |
+5,100
| New | +$847K |
|
11457
Tilly's
TLYS
$122M
| $119K | ﹤0.01% |
59,677
-5,049
| -8% | -$8.27K |
|
11458
CALL
Immatics
IMTX
$1.29B
| $119K | ﹤0.01% |
11,300
-25,300
| -69% | -$255K |
|
11459
CALL
908 Devices
MASS
$414M
| $119K | ﹤0.01% |
22,600
-17,300
| -43% | -$121K |
|
|
GLO
11460
Clough Global Opportunities Fund
GLO
$257M
| $119K | ﹤0.01% |
+20,950
| New | +$119K |
|
11461
Banco Bradesco
BBDO
$32.9B
| $119K | ﹤0.01% |
41,297
-22,961
| -36% | -$68.5K |
|
11462
CALL
Blink Charging
BLNK
$85.9M
| $118K | ﹤0.01% |
177,400
-128,300
| -42% | -$186K |
|
11463
ABVC BioPharma
ABVC
$24M
| $118K | ﹤0.01% |
55,543
+39,879
| +255% | +$107K |
|
11464
Xerox
XRX
$407M
| $118K | ﹤0.01% |
49,836
-1,179,393
| -96% | -$3.49M |
|
11465
United States 12 Month Natural Gas Fund
UNL
$13.3M
| $118K | ﹤0.01% |
15,974
-12,057
| -43% | -$96.1K |
|
11466
CALL
Runway Growth Finance
RWAY
$290M
| $118K | ﹤0.01% |
+13,200
| New | +$125K |
|
11467
BioCardia
BCDA
$14.7M
| $118K | ﹤0.01% |
+94,247
| New | +$128K |
|
11468
PUT
4D Molecular Therapeutics
FDMT
$673M
| $118K | ﹤0.01% |
15,700
+3,100
| +25% | +$31.4K |
|
11469
CALL
Korro Bio
KRRO
$196M
| $118K | ﹤0.01% |
+14,700
| New | +$344K |
|
11470
PUT
Good Times Restaurants
GTIM
$16.4M
| $118K | ﹤0.01% |
+97,200
| New | +$136K |
|
|
IMDX
11471
Insight Molecular Diagnostics
IMDX
$141M
| $117K | ﹤0.01% |
15,647
+3,860
| +33% | +$21.8K |
|
|
KAZR
11472
Skyline Builders Group
KAZR
$53.5M
| $117K | ﹤0.01% |
+39,876
| New | +$119K |
|
|
EFT
11473
Eaton Vance Floating-Rate Income Trust
EFT
$289M
| $117K | ﹤0.01% |
+10,340
| New | +$118K |
|
11474
CALL
Satellogic
SATL
$892M
| $117K | ﹤0.01% |
62,400
+46,600
| +295% | +$101K |
|
11475
Coya Therapeutics
COYA
$112M
| $116K | ﹤0.01% |
20,083
-45,157
| -69% | -$275K |
|
Similar funds
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.