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 | |
|---|---|---|---|---|---|---|
3926
PUT
Navios Maritime Partners
NMM
$2.33B
| $6.18M | ﹤0.01% |
117,800
-78,400
| -40% | -$3.89M |
|
3927
Noble Corp
NE
$7.2B
| $6.18M | ﹤0.01% |
218,694
+77,627
| +55% | +$2.29M |
|
3928
SFL Corp
SFL
$1.64B
| $6.18M | ﹤0.01% |
790,656
+666,247
| +536% | +$5.12M |
|
3929
CALL
Kodiak Gas Services
KGS
$6.6B
| $6.17M | ﹤0.01% |
165,100
-191,900
| -54% | -$6.79M |
|
3930
PUT
Equifax
EFX
$21.2B
| $6.16M | ﹤0.01% |
28,400
-1,300
| -4% | -$285K |
|
3931
Payoneer
PAYO
$2.42B
| $6.16M | ﹤0.01% |
1,095,968
+564,252
| +106% | +$3.26M |
|
|
HOUS
3932
DELISTED
Anywhere Real Estate
HOUS
| $6.15M | ﹤0.01% |
434,528
-488,800
| -53% | -$5.99M |
|
3933
Helios Technologies
HLIO
$2.69B
| $6.13M | ﹤0.01% |
114,639
+18,868
| +20% | +$1.02M |
|
3934
Amphastar Pharmaceuticals
AMPH
$889M
| $6.13M | ﹤0.01% |
228,724
+1,949
| +0.9% | +$50.2K |
|
3935
SI-BONE Inc
SIBN
$848M
| $6.12M | ﹤0.01% |
310,348
-43,896
| -12% | -$763K |
|
3936
ICF International
ICFI
$1.59B
| $6.12M | ﹤0.01% |
71,742
-40,108
| -36% | -$3.4M |
|
|
AVGX
3937
PUT
Defiance Daily Target 2X Long AVGO ETF
AVGX
$190M
| $6.11M | ﹤0.01% |
130,400
+21,800
| +20% | +$1.17M |
|
3938
Old Republic International
ORI
$10.3B
| $6.1M | ﹤0.01% |
133,680
-469,224
| -78% | -$20.4M |
|
|
SPRB
3939
Spruce Biosciences
SPRB
$151M
| $6.1M | ﹤0.01% |
+69,999
| New | +$7.5M |
|
3940
PUT
Brink's
BCO
$4.71B
| $6.09M | ﹤0.01% |
52,200
+46,200
| +770% | +$5.28M |
|
3941
PUT
BioMarin Pharmaceuticals
BMRN
$13B
| $6.09M | ﹤0.01% |
102,500
+5,700
| +6% | +$310K |
|
3942
Perdoceo Education
PRDO
$2B
| $6.09M | ﹤0.01% |
207,505
-45,080
| -18% | -$1.42M |
|
3943
RLJ Lodging Trust
RLJ
$1.67B
| $6.08M | ﹤0.01% |
816,711
+668,846
| +452% | +$4.86M |
|
3944
Takeda Pharmaceutical
TAK
$56.3B
| $6.08M | ﹤0.01% |
389,734
+314,110
| +415% | +$4.49M |
|
3945
Turkcell
TKC
$4.75B
| $6.07M | ﹤0.01% |
1,110,271
+1,023,937
| +1,186% | +$5.97M |
|
3946
Collegium Pharmaceutical
COLL
$875M
| $6.07M | ﹤0.01% |
131,126
-122,374
| -48% | -$5.12M |
|
3947
CALL
iShares US Technology ETF
IYW
$25.6B
| $6.07M | ﹤0.01% |
30,400
+3,700
| +14% | +$740K |
|
3948
CALL
Beam Therapeutics
BEAM
$2.76B
| $6.07M | ﹤0.01% |
218,900
-43,000
| -16% | -$1.1M |
|
3949
LGI Homes
LGIH
$1.39B
| $6.06M | ﹤0.01% |
141,166
-262,927
| -65% | -$12.3M |
|
3950
Cannae Holdings
CNNE
$635M
| $6.06M | ﹤0.01% |
385,400
+113,781
| +42% | +$1.94M |
|
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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.