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 | |
|---|---|---|---|---|---|---|
2601
CALL
Knight Transportation
KNX
$11.8B
| $16M | ﹤0.01% |
306,700
-47,800
| -13% | -$2.24M |
|
2602
CALL
Praxis Precision Medicines
PRAX
$10.2B
| $16M | ﹤0.01% |
54,200
+29,900
| +123% | +$5.57M |
|
2603
CALL
Invesco
IVZ
$14.4B
| $16M | ﹤0.01% |
608,100
+283,800
| +88% | +$6.93M |
|
2604
PUT
FIVE9
FIVN
$2.47B
| $16M | ﹤0.01% |
796,400
+403,600
| +103% | +$8.57M |
|
2605
CALL
AdvisorShares Pure US Cannabis ETF
MSOS
$930M
| $15.9M | ﹤0.01% |
3,378,600
+539,800
| +19% | +$2.41M |
|
2606
Amplitude
AMPL
$1.63B
| $15.9M | ﹤0.01% |
1,376,002
+803,478
| +140% | +$8.45M |
|
2607
CALL
General Mills
GIS
$21B
| $15.9M | ﹤0.01% |
342,100
+61,800
| +22% | +$2.94M |
|
2608
CALL
SL Green Realty
SLG
$3.97B
| $15.9M | ﹤0.01% |
345,800
+53,100
| +18% | +$2.62M |
|
2609
Carlisle Companies
CSL
$14.7B
| $15.9M | ﹤0.01% |
49,589
-144,542
| -74% | -$46.8M |
|
|
ETOR
2610
eToro Group
ETOR
$2.27B
| $15.8M | ﹤0.01% |
450,083
+9,044
| +2% | +$349K |
|
2611
PUT
Lumen
LUMN
$6.93B
| $15.8M | ﹤0.01% |
2,034,500
-4,442,300
| -69% | -$36.6M |
|
2612
SiriusXM
SIRI
$9.59B
| $15.8M | ﹤0.01% |
790,308
-1,687,820
| -68% | -$36.3M |
|
2613
Garrett Motion
GTX
$5.41B
| $15.8M | ﹤0.01% |
905,781
-1,653,400
| -65% | -$26.3M |
|
2614
ResMed
RMD
$32.4B
| $15.8M | ﹤0.01% |
65,500
-127,094
| -66% | -$32.5M |
|
2615
Harmony Biosciences
HRMY
$2.22B
| $15.7M | ﹤0.01% |
420,410
+352,398
| +518% | +$11.6M |
|
|
LMRI
2616
Lumexa Imaging Holdings
LMRI
$1.15B
| $15.7M | ﹤0.01% |
+850,000
| New | +$15.3M |
|
2617
CALL
Bunge Global
BG
$21.8B
| $15.7M | ﹤0.01% |
176,500
-132,700
| -43% | -$12.2M |
|
2618
Core & Main
CNM
$8.61B
| $15.7M | ﹤0.01% |
+302,457
| New | +$15.5M |
|
2619
CALL
Cinemark Holdings
CNK
$4.33B
| $15.7M | ﹤0.01% |
675,900
-153,000
| -18% | -$4.02M |
|
2620
CALL
Pultegroup
PHM
$24.8B
| $15.7M | ﹤0.01% |
133,900
-57,000
| -30% | -$6.99M |
|
2621
PUT
Darden Restaurants
DRI
$25.6B
| $15.7M | ﹤0.01% |
85,300
-74,800
| -47% | -$13.6M |
|
2622
CALL
Texas Pacific Land
TPL
$24.7B
| $15.7M | ﹤0.01% |
54,600
-4,800
| -8% | -$1.47M |
|
|
OKLO
2623
Oklo
OKLO
$8.26B
| $15.7M | ﹤0.01% |
218,472
+96,511
| +79% | +$10.8M |
|
2624
Corning
GLW
$143B
| $15.7M | ﹤0.01% |
178,999
-287,616
| -62% | -$24.8M |
|
2625
CALL
abrdn Physical Silver Shares ETF
SIVR
$4.49B
| $15.6M | ﹤0.01% |
231,200
+188,300
| +439% | +$9.89M |
|
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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.