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 | |
|---|---|---|---|---|---|---|
4901
CALL
Lantheus
LNTH
$6.59B
| $3.4M | ﹤0.01% |
51,100
-43,400
| -46% | -$2.53M |
|
4902
Vanguard Russell 3000 ETF
VTHR
$4.88B
| $3.4M | ﹤0.01% |
+11,311
| New | +$3.37M |
|
4903
Nuveen Enhanced Yield US Aggregate Bond ETF
NUAG
$96.6M
| $3.39M | ﹤0.01% |
160,186
+132,394
| +476% | +$2.82M |
|
4904
PUT
Idacorp
IDA
$8.25B
| $3.39M | ﹤0.01% |
26,800
+2,600
| +11% | +$338K |
|
4905
CALL
iShares MSCI Germany ETF
EWG
$1.68B
| $3.39M | ﹤0.01% |
79,800
-75,000
| -48% | -$3.1M |
|
4906
Buckle
BKE
$2.27B
| $3.39M | ﹤0.01% |
63,425
+21,895
| +53% | +$1.22M |
|
4907
HEICO Corp
HEI
$52.4B
| $3.38M | ﹤0.01% |
10,458
-62,985
| -86% | -$19.9M |
|
4908
PUT
ASP Isotopes
ASPI
$538M
| $3.38M | ﹤0.01% |
632,500
+120,700
| +24% | +$960K |
|
4909
WesBanco
WSBC
$4.09B
| $3.38M | ﹤0.01% |
101,784
-372,354
| -79% | -$12M |
|
|
PPTA
4910
Perpetua Resources
PPTA
$3.16B
| $3.38M | ﹤0.01% |
139,680
-574,874
| -80% | -$14.1M |
|
|
KRMN
4911
CALL
Karman Holdings
KRMN
$8.22B
| $3.38M | ﹤0.01% |
46,200
+31,100
| +206% | +$2.25M |
|
4912
PUT
InMode
INMD
$872M
| $3.38M | ﹤0.01% |
230,000
+58,600
| +34% | +$862K |
|
4913
Imperial Oil
IMO
$64.5B
| $3.38M | ﹤0.01% |
39,119
+31,813
| +435% | +$2.9M |
|
4914
Park National Corp
PRK
$3.75B
| $3.37M | ﹤0.01% |
22,170
-6,478
| -23% | -$1.02M |
|
4915
Fiverr
FVRR
$324M
| $3.37M | ﹤0.01% |
170,560
-774,855
| -82% | -$16.7M |
|
4916
CALL
PagSeguro Digital
PAGS
$2.4B
| $3.37M | ﹤0.01% |
349,600
+209,400
| +149% | +$2.01M |
|
4917
CALL
Jackson Financial
JXN
$9.17B
| $3.37M | ﹤0.01% |
31,600
-1,600
| -5% | -$159K |
|
4918
Ibotta
IBTA
$783M
| $3.37M | ﹤0.01% |
148,257
-16,299
| -10% | -$440K |
|
4919
Franklin Intelligent Machines ETF
IQM
$113M
| $3.37M | ﹤0.01% |
38,529
+13,920
| +57% | +$1.24M |
|
4920
Universal Health Services
UHS
$10B
| $3.37M | ﹤0.01% |
15,445
-662,975
| -98% | -$147M |
|
|
4921
InMode
INMD
$872M
| $3.36M | ﹤0.01% |
229,065
-368,082
| -62% | -$5.42M |
|
4922
iShares ESG Advanced Universal USD Bond ETF
EUSB
$711M
| $3.36M | ﹤0.01% |
76,596
-214,084
| -74% | -$9.42M |
|
4923
CALL
CVR Energy
CVI
$3.54B
| $3.36M | ﹤0.01% |
132,200
-90,200
| -41% | -$3.07M |
|
4924
CALL
Brookfield Renewable
BEPC
$6.59B
| $3.36M | ﹤0.01% |
87,700
+26,500
| +43% | +$1.07M |
|
4925
PUT
Martin Marietta Materials
MLM
$32.9B
| $3.36M | ﹤0.01% |
5,400
-7,400
| -58% | -$4.6M |
|
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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.