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 | |
|---|---|---|---|---|---|---|
876
Constellation Energy
CEG
$98.7B
| $98.4M | 0.01% |
278,533
+180,726
| +185% | +$65.7M |
|
877
3M
MMM
$94.2B
| $98.1M | 0.01% |
612,598
-1,845,501
| -75% | -$302M |
|
878
WIX.com
WIX
$3.35B
| $98M | 0.01% |
943,719
+317,782
| +51% | +$38.4M |
|
|
ACLX
879
DELISTED
Arcellx
ACLX
| $97.8M | 0.01% |
1,500,223
+478,770
| +47% | +$38.2M |
|
880
DigitalOcean
DOCN
$15.6B
| $97.5M | 0.01% |
2,026,461
-117,375
| -5% | -$5.17M |
|
881
CALL
iShares MSCI EAFE Value ETF
EFV
$30.1B
| $97.4M | 0.01% |
1,364,600
+272,500
| +25% | +$18.9M |
|
882
CALL
D.R. Horton
DHI
$41.9B
| $97.4M | 0.01% |
676,400
-130,800
| -16% | -$19.9M |
|
883
Banc of California
BANC
$3.11B
| $97.2M | 0.01% |
5,041,415
+2,127,759
| +73% | +$38.1M |
|
|
ETHA
884
iShares Ethereum Trust ETF
ETHA
$5.56B
| $97.2M | 0.01% |
4,335,271
+2,977,832
| +219% | +$77.9M |
|
885
PUT
United Rentals
URI
$69.7B
| $97.2M | 0.01% |
120,100
+77,200
| +180% | +$67M |
|
886
HF Sinclair
DINO
$16.3B
| $97.1M | 0.01% |
2,106,235
+18,388
| +0.9% | +$948K |
|
887
CALL
iShares MSCI Japan ETF
EWJ
$23.2B
| $97M | 0.01% |
1,201,200
+6,500
| +0.5% | +$534K |
|
|
CFLT
888
DELISTED
Confluent
CFLT
| $96.7M | 0.01% |
3,197,023
-2,182,355
| -41% | -$53.6M |
|
889
Live Nation Entertainment
LYV
$43.3B
| $96.5M | 0.01% |
677,222
+644,680
| +1,981% | +$92.7M |
|
890
Merit Medical Systems
MMSI
$5.4B
| $96.4M | 0.01% |
1,093,607
-83,194
| -7% | -$7.08M |
|
891
CALL
Microchip Technology
MCHP
$42.2B
| $96.2M | 0.01% |
1,509,200
-386,900
| -20% | -$23.9M |
|
892
ITT
ITT
$19.4B
| $96.1M | 0.01% |
554,139
+522,880
| +1,673% | +$93.7M |
|
893
PUT
ConocoPhillips
COP
$150B
| $96M | 0.01% |
1,025,750
+101,750
| +11% | +$9.2M |
|
894
Outfront Media
OUT
$5.24B
| $95.8M | 0.01% |
3,976,198
+573,611
| +17% | +$11.9M |
|
|
SNDK
895
Sandisk
SNDK
$223B
| $95.7M | 0.01% |
403,289
+77,672
| +24% | +$15.6M |
|
896
PUT
Linde
LIN
$220B
| $95.6M | 0.01% |
224,100
+121,400
| +118% | +$52M |
|
897
Krystal Biotech
KRYS
$9.72B
| $95.3M | 0.01% |
386,505
-250,483
| -39% | -$52.7M |
|
898
Cboe Global Markets
CBOE
$30.6B
| $95.2M | 0.01% |
379,384
+180,087
| +90% | +$44.8M |
|
899
Celanese
CE
$4.86B
| $95.1M | 0.01% |
2,249,967
+1,079,063
| +92% | +$44M |
|
900
CALL
Centrus Energy
LEU
$3.83B
| $95.1M | 0.01% |
391,700
-88,300
| -18% | -$26.7M |
|
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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.