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 | |
|---|---|---|---|---|---|---|
11926
CALL
Ocean Power Technologies
OPTT
$55.9M
| $56.8K | ﹤0.01% |
189,300
+66,600
| +54% | +$29.9K |
|
11927
PUT
Red Robin
RRGB
$192M
| $56.7K | ﹤0.01% |
14,000
-17,300
| -55% | -$86.8K |
|
11928
Lifetime Brands
LCUT
$226M
| $56.7K | ﹤0.01% |
+14,351
| New | +$52.7K |
|
11929
Loop Industries
LOOP
$31.1M
| $56.7K | ﹤0.01% |
56,680
+12,144
| +27% | +$16K |
|
|
GV
11930
DELISTED
Visionary Holdings
GV
| $56.7K | ﹤0.01% |
+48,439
| New | +$72.1K |
|
11931
CALL
Acumen Pharmaceuticals
ABOS
$193M
| $56.5K | ﹤0.01% |
26,800
+15,200
| +131% | +$30.2K |
|
11932
PUT
Relmada Therapeutics
RLMD
$512M
| $56.5K | ﹤0.01% |
+11,700
| New | +$39.2K |
|
11933
PUT
Clarus
CLAR
$140M
| $56.3K | ﹤0.01% |
16,800
-4,100
| -20% | -$14K |
|
11934
PUT
GrowGeneration
GRWG
$104M
| $56.3K | ﹤0.01% |
37,500
-35,700
| -49% | -$58.6K |
|
|
MRAL
11935
PUT
GraniteShares 2x Long MARA Daily ETF
MRAL
$28.4M
| $56K | ﹤0.01% |
1,220
+110
| +10% | +$16.6K |
|
|
TBHC
11936
DELISTED
The Brand House Collective
TBHC
| $55.8K | ﹤0.01% |
+50,731
| New | +$70.3K |
|
|
DDL
11937
PUT
Dingdong
DDL
$523M
| $55.8K | ﹤0.01% |
+22,400
| New | +$44.6K |
|
|
SEV
11938
CALL
Aptera Motors
SEV
$88.4M
| $55.8K | ﹤0.01% |
+13,000
| New | +$81.4K |
|
|
ZH
11939
CALL
Zhihu
ZH
$272M
| $55.8K | ﹤0.01% |
+17,000
| New | +$68.1K |
|
|
API
11940
CALL
Agora
API
$392M
| $55.8K | ﹤0.01% |
+13,700
| New | +$50.3K |
|
11941
Retractable Technologies
RVP
$20.7M
| $55.7K | ﹤0.01% |
72,183
+9,773
| +16% | +$8.43K |
|
11942
CALL
Rackspace Technology
RXT
$1.07B
| $55.7K | ﹤0.01% |
57,400
+29,400
| +105% | +$37K |
|
|
OPENZ
11943
Opendoor Technologies Inc Series Z Warrants
OPENZ
$4.35M
| $55.6K | ﹤0.01% |
+139,266
| New | +$84.3K |
|
|
CCAQW
11944
Collective Acquisition Corp Warrants
CCAQW
| $55.6K | ﹤0.01% |
+216,825
| New | +$63.9K |
|
11945
PUT
Evolution Petroleum
EPM
$135M
| $55.6K | ﹤0.01% |
+15,700
| New | +$66.2K |
|
11946
PUT
8x8 Inc
EGHT
$300M
| $55.6K | ﹤0.01% |
+28,200
| New | +$55.5K |
|
|
NMAD
11947
Nomad Power Solutions
NMAD
$74.1M
| $55.4K | ﹤0.01% |
+14,093
| New | +$60.9K |
|
11948
CALL
Cumberland Pharmaceuticals
CPIX
$117M
| $55.3K | ﹤0.01% |
13,900
+2,400
| +21% | +$7.11K |
|
11949
CALL
Zevia
ZVIA
$102M
| $55.2K | ﹤0.01% |
+23,800
| New | +$59.1K |
|
11950
Sana Biotechnology
SANA
$1.06B
| $55.1K | ﹤0.01% |
13,541
-6,538,436
| -100% | -$29.3M |
|
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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.