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 | |
|---|---|---|---|---|---|---|
6526
Palmer Square Capital BDC
PSBD
$319M
| $1.46M | ﹤0.01% |
120,004
+101,225
| +539% | +$1.24M |
|
6527
CALL
CryoPort
CYRX
$776M
| $1.46M | ﹤0.01% |
152,300
-45,300
| -23% | -$428K |
|
6528
PUT
Penumbra
PEN
$12.9B
| $1.46M | ﹤0.01% |
4,700
-2,400
| -34% | -$663K |
|
|
NKLR
6529
Terra Innovatum Global N.V.
NKLR
$662M
| $1.46M | ﹤0.01% |
+316,048
| New | +$2.22M |
|
|
TIC
6530
TIC Solutions Inc
TIC
$2.1B
| $1.46M | ﹤0.01% |
144,414
-261,545
| -64% | -$2.91M |
|
6531
CALL
Genco Shipping & Trading
GNK
$1.14B
| $1.46M | ﹤0.01% |
79,200
-20,900
| -21% | -$367K |
|
6532
BNY Mellon Ultra Short Income ETF
BKUI
$581M
| $1.46M | ﹤0.01% |
29,336
+25,227
| +614% | +$1.26M |
|
6533
CALL
Brink's
BCO
$4.58B
| $1.46M | ﹤0.01% |
12,500
-6,400
| -34% | -$732K |
|
6534
CytomX Therapeutics
CTMX
$752M
| $1.46M | ﹤0.01% |
342,304
-1,458,131
| -81% | -$5.54M |
|
6535
CALL
XPEL
XPEL
$1.38B
| $1.46M | ﹤0.01% |
29,200
-8,600
| -23% | -$359K |
|
6536
CALL
Inspire Medical Systems
INSP
$1.65B
| $1.46M | ﹤0.01% |
15,800
-14,800
| -48% | -$1.42M |
|
6537
PUT
ProShares VIX Short-Term Futures ETF
VIXY
$206M
| $1.46M | ﹤0.01% |
56,800
-134,850
| -70% | -$4.28M |
|
6538
State Street SPDR US Large Cap Low Volatility Index ETF
LGLV
$1.22B
| $1.45M | ﹤0.01% |
8,280
+2,644
| +47% | +$464K |
|
|
EB
6539
DELISTED
Eventbrite
EB
| $1.45M | ﹤0.01% |
326,510
-527,585
| -62% | -$1.63M |
|
6540
Northwest Natural Holdings
NWN
$2.14B
| $1.45M | ﹤0.01% |
31,081
-17,449
| -36% | -$814K |
|
6541
CALL
NCR Atleos
NATL
$3.42B
| $1.45M | ﹤0.01% |
38,100
+13,900
| +57% | +$521K |
|
6542
PUT
Sunoco
SUN
$14.1B
| $1.45M | ﹤0.01% |
27,700
-100
| -0.4% | -$5.28K |
|
6543
CALL
Global X Defense Tech ETF
SHLD
$7.74B
| $1.45M | ﹤0.01% |
22,400
-23,500
| -51% | -$1.55M |
|
6544
Principal Exchange-Traded Funds Principal US Mega-Cap ETF
USMC
$4.4B
| $1.45M | ﹤0.01% |
21,200
-4,477
| -17% | -$306K |
|
6545
CALL
Cooper-Standard Automotive
CPS
$506M
| $1.45M | ﹤0.01% |
44,200
-63,300
| -59% | -$2.06M |
|
6546
PUT
Outlook Therapeutics
OTLK
$126M
| $1.45M | ﹤0.01% |
918,300
+889,700
| +3,111% | +$1.42M |
|
6547
PUT
Digital Turbine
APPS
$1.48B
| $1.45M | ﹤0.01% |
290,000
+88,600
| +44% | +$501K |
|
6548
Invesco BulletShares 2027 High Yield Corporate Bond ETF
BSJR
$890M
| $1.45M | ﹤0.01% |
64,073
+46,798
| +271% | +$1.06M |
|
6549
PUT
Badger Meter
BMI
$3.73B
| $1.45M | ﹤0.01% |
8,300
-5,600
| -40% | -$1.01M |
|
|
MIAX
6550
PUT
Miami International Holdings
MIAX
$4.32B
| $1.45M | ﹤0.01% |
32,600
-1,500
| -4% | -$66.9K |
|
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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.