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 | |
|---|---|---|---|---|---|---|
3701
CALL
Sociedad Química y Minera de Chile
SQM
$21.2B
| $7.12M | ﹤0.01% |
103,500
+27,700
| +37% | +$1.53M |
|
3702
World Kinect Corp
WKC
$1.85B
| $7.12M | ﹤0.01% |
303,855
-272,053
| -47% | -$6.71M |
|
3703
Biogen
BIIB
$31B
| $7.11M | ﹤0.01% |
40,424
-332,304
| -89% | -$54.3M |
|
3704
CALL
Magnite
MGNI
$3.55B
| $7.11M | ﹤0.01% |
438,200
+108,200
| +33% | +$1.8M |
|
3705
McGrath RentCorp
MGRC
$2.99B
| $7.1M | ﹤0.01% |
67,697
+65,281
| +2,702% | +$7.08M |
|
3706
PUT
Murphy USA
MUSA
$10.5B
| $7.1M | ﹤0.01% |
17,600
+7,000
| +66% | +$2.69M |
|
3707
CALL
Canadian Imperial Bank of Commerce
CM
$113B
| $7.09M | ﹤0.01% |
78,300
-510,400
| -87% | -$43.8M |
|
3708
Darden Restaurants
DRI
$25.6B
| $7.09M | ﹤0.01% |
38,548
-58,592
| -60% | -$10.7M |
|
3709
PUT
Blackstone Mortgage Trust
BXMT
$2.44B
| $7.09M | ﹤0.01% |
370,800
+20,200
| +6% | +$383K |
|
3710
Beam Therapeutics
BEAM
$2.76B
| $7.09M | ﹤0.01% |
+255,710
| New | +$6.52M |
|
3711
PUT
Fiverr
FVRR
$324M
| $7.09M | ﹤0.01% |
358,700
-89,400
| -20% | -$1.93M |
|
3712
CALL
Viavi Solutions
VIAV
$10.7B
| $7.08M | ﹤0.01% |
397,200
+197,800
| +99% | +$3.19M |
|
3713
Vanguard Short-Term Treasury ETF
VGSH
$30.2B
| $7.07M | ﹤0.01% |
120,376
+5,571
| +5% | +$327K |
|
3714
iShares MSCI EAFE Value ETF
EFV
$30.1B
| $7.07M | ﹤0.01% |
98,940
-193,691
| -66% | -$13.5M |
|
3715
PUT
Otis Worldwide
OTIS
$27.6B
| $7.06M | ﹤0.01% |
80,800
-11,300
| -12% | -$1.01M |
|
|
ARR
3716
Armour Residential REIT
ARR
$2.37B
| $7.06M | ﹤0.01% |
398,882
-85,177
| -18% | -$1.41M |
|
|
WCN
3717
CALL
Waste Connections
WCN
$41.8B
| $7.05M | ﹤0.01% |
40,200
+11,300
| +39% | +$1.95M |
|
|
SEMR
3718
DELISTED
Semrush
SEMR
| $7.05M | ﹤0.01% |
592,643
+351,394
| +146% | +$3.29M |
|
|
FGNX
3719
FG Nexus Inc
FGNX
$40.8M
| $7.04M | ﹤0.01% |
511,928
+11,998
| +2% | +$210K |
|
3720
CALL
DT Midstream
DTM
$14B
| $7.03M | ﹤0.01% |
58,700
+23,400
| +66% | +$2.69M |
|
3721
PUT
Labcorp
LH
$25.8B
| $7.02M | ﹤0.01% |
28,000
-15,000
| -35% | -$3.98M |
|
|
NIQ
3722
NIQ Global Intelligence PLC
NIQ
$5.15B
| $7.02M | ﹤0.01% |
425,654
-1,950,346
| -82% | -$28.5M |
|
3723
PUT
Omeros
OMER
$1.24B
| $7.01M | ﹤0.01% |
408,400
+84,200
| +26% | +$725K |
|
3724
Wolfspeed
WOLF
$1.65B
| $7.01M | ﹤0.01% |
402,766
+340,777
| +550% | +$7.82M |
|
3725
Willis Towers Watson
WTW
$30.8B
| $7.01M | ﹤0.01% |
21,334
+1,196
| +6% | +$392K |
|
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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.