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 | |
|---|---|---|---|---|---|---|
1326
PUT
Hewlett Packard
HPE
$78.4B
| $54.4M | 0.01% |
2,263,200
+440,900
| +24% | +$10.4M |
|
1327
Zoom
ZM
$30.8B
| $54.3M | 0.01% |
629,312
-132,764
| -17% | -$11.2M |
|
1328
CALL
Digital Realty Trust
DLR
$73.9B
| $54.2M | 0.01% |
350,600
+81,600
| +30% | +$13.4M |
|
1329
Essential Utilities
WTRG
$11.4B
| $54.1M | 0.01% |
1,409,160
-1,097,813
| -44% | -$43.2M |
|
1330
Zscaler
ZS
$29.9B
| $54M | 0.01% |
240,053
+63,839
| +36% | +$18M |
|
1331
Tapestry
TPR
$25.8B
| $54M | 0.01% |
422,284
+348,943
| +476% | +$39.9M |
|
1332
California Resources
CRC
$4.75B
| $54M | 0.01% |
1,206,715
+857,340
| +245% | +$40.7M |
|
1333
CALL
Coca-Cola Europacific Partners
CCEP
$47.7B
| $53.9M | 0.01% |
594,400
+156,800
| +36% | +$14.2M |
|
1334
PUT
Comfort Systems
FIX
$62.2B
| $53.9M | 0.01% |
57,700
-8,900
| -13% | -$8.22M |
|
1335
Commerce Bancshares
CBSH
$8.67B
| $53.8M | 0.01% |
1,028,784
+491,062
| +91% | +$25.7M |
|
1336
Structure Therapeutics
GPCR
$3.81B
| $53.7M | 0.01% |
772,518
+328,718
| +74% | +$13.4M |
|
1337
News Corp Class A
NWSA
$15.7B
| $53.6M | 0.01% |
2,052,912
+678,344
| +49% | +$17.8M |
|
1338
CALL
Kroger
KR
$34.8B
| $53.6M | 0.01% |
857,200
+48,200
| +6% | +$3.15M |
|
|
SEI
1339
Solaris Energy Infrastructure
SEI
$4.12B
| $53.5M | 0.01% |
1,164,500
+978,183
| +525% | +$47.3M |
|
1340
Helmerich & Payne
HP
$4.41B
| $53.5M | 0.01% |
1,866,081
+1,700,433
| +1,027% | +$45.2M |
|
1341
Ultragenyx Pharmaceutical
RARE
$2.56B
| $53.5M | 0.01% |
2,326,125
+1,995,172
| +603% | +$65.6M |
|
1342
BridgeBio Pharma
BBIO
$15.6B
| $53.4M | 0.01% |
+698,182
| New | +$45.8M |
|
1343
CALL
Sunrun
RUN
$2.44B
| $53.4M | 0.01% |
2,900,100
-573,100
| -17% | -$11M |
|
1344
Option Care Health
OPCH
$3.61B
| $53.3M | 0.01% |
1,673,546
+1,451,177
| +653% | +$42.6M |
|
|
TEM
1345
Tempus AI
TEM
$9.47B
| $53.3M | 0.01% |
902,570
+885,025
| +5,044% | +$69.2M |
|
1346
Archrock
AROC
$5.99B
| $53.3M | 0.01% |
2,047,952
-661,408
| -24% | -$16.4M |
|
1347
TTM Technologies
TTMI
$14.7B
| $53.2M | 0.01% |
771,713
-83,226
| -10% | -$5.43M |
|
1348
PUT
Progressive
PGR
$122B
| $53.1M | 0.01% |
233,200
+1,000
| +0.4% | +$226K |
|
1349
Meritage Homes
MTH
$4.77B
| $53M | 0.01% |
806,028
+294,117
| +57% | +$20.4M |
|
1350
State Street Utilities Select Sector SPDR ETF
XLU
$23B
| $53M | 0.01% |
+1,241,054
| New | +$55M |
|
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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.