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 | |
|---|---|---|---|---|---|---|
|
DAWN
6151
CALL
DELISTED
Day One Biopharmaceuticals
DAWN
| $1.75M | ﹤0.01% |
+187,900
| New | +$1.57M |
|
6152
CALL
HealthEquity
HQY
$8.56B
| $1.75M | ﹤0.01% |
19,100
-43,600
| -70% | -$4.17M |
|
6153
News Corp Class B
NWS
$17.7B
| $1.75M | ﹤0.01% |
58,993
-232,203
| -80% | -$6.92M |
|
6154
NerdWallet
NRDS
$614M
| $1.75M | ﹤0.01% |
128,943
-304,689
| -70% | -$3.99M |
|
6155
PUT
Mirion Technologies
MIR
$3.92B
| $1.75M | ﹤0.01% |
74,600
-131,700
| -64% | -$3.28M |
|
|
ORCX
6156
CALL
Defiance Daily Target 2X Long ORCL ETF
ORCX
$244M
| $1.75M | ﹤0.01% |
+33,800
| New | +$2.87M |
|
6157
CALL
Freshworks
FRSH
$3.41B
| $1.75M | ﹤0.01% |
142,600
+45,100
| +46% | +$533K |
|
6158
CALL
Buckle
BKE
$2.23B
| $1.75M | ﹤0.01% |
32,700
-20,800
| -39% | -$1.16M |
|
6159
CALL
10x Genomics
TXG
$7.56B
| $1.75M | ﹤0.01% |
107,100
+41,300
| +63% | +$624K |
|
6160
iShares Global Financials ETF
IXG
$699M
| $1.75M | ﹤0.01% |
+14,455
| New | +$1.68M |
|
6161
The Ensign Group
ENSG
$10.6B
| $1.75M | ﹤0.01% |
+10,021
| New | +$1.8M |
|
6162
Orion Group Holdings
ORN
$397M
| $1.75M | ﹤0.01% |
175,590
-93,754
| -35% | -$909K |
|
6163
PUT
Antero Midstream
AM
$10.5B
| $1.75M | ﹤0.01% |
98,100
+7,900
| +9% | +$142K |
|
|
SNV
6164
DELISTED
Synovus
SNV
| $1.75M | ﹤0.01% |
34,869
-720,998
| -95% | -$34.7M |
|
|
SFTX
6165
Horizon International Managed Risk ETF
SFTX
$783M
| $1.74M | ﹤0.01% |
+67,995
| New | +$1.73M |
|
6166
iShares Europe ETF
IEV
$1.69B
| $1.74M | ﹤0.01% |
25,424
+386
| +2% | +$25.8K |
|
6167
CALL
Asbury Automotive
ABG
$3.74B
| $1.74M | ﹤0.01% |
7,500
-1,800
| -19% | -$426K |
|
6168
PepGen
PEPG
$211M
| $1.74M | ﹤0.01% |
267,789
-29,469
| -10% | -$153K |
|
6169
Triple Flag Precious Metals
TFPM
$6.52B
| $1.74M | ﹤0.01% |
52,476
-46,661
| -47% | -$1.46M |
|
6170
Materion
MTRN
$6B
| $1.74M | ﹤0.01% |
14,020
-19,523
| -58% | -$2.41M |
|
6171
FTAI Infrastructure
FIP
$502M
| $1.74M | ﹤0.01% |
377,880
-208,949
| -36% | -$1.03M |
|
|
OPRA
6172
PUT
Opera Ltd
OPRA
$1.76B
| $1.74M | ﹤0.01% |
123,000
-4,500
| -4% | -$66.4K |
|
6173
VanEck Fallen Angel High Yield Bond ETF
ANGL
$3.13B
| $1.74M | ﹤0.01% |
59,310
-29,086
| -33% | -$856K |
|
6174
LeaderShares Dynamic Yield ETF
DYLD
$40.1M
| $1.74M | ﹤0.01% |
77,007
-49,588
| -39% | -$1.13M |
|
6175
PUT
Champion Homes
SKY
$5.06B
| $1.74M | ﹤0.01% |
20,600
-1,800
| -8% | -$142K |
|
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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.