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 | |
|---|---|---|---|---|---|---|
6651
PUT
NovoCure
NVCR
$2B
| $1.38M | ﹤0.01% |
107,100
-12,700
| -11% | -$163K |
|
|
FIXT
6652
TCW Core Plus Bond ETF
FIXT
$226M
| $1.38M | ﹤0.01% |
36,207
-482,427
| -93% | -$18.6M |
|
|
UDMY
6653
DELISTED
Udemy
UDMY
| $1.38M | ﹤0.01% |
236,481
-535,569
| -69% | -$3.12M |
|
6654
JPMorgan BetaBuilders US Treasury Bond 3-10 Year ETF
BBIB
$54.2M
| $1.38M | ﹤0.01% |
13,925
+4,712
| +51% | +$470K |
|
6655
Lufax Holding
LU
$1.3B
| $1.38M | ﹤0.01% |
540,146
-311,642
| -37% | -$921K |
|
6656
Invesco Emerging Markets Sovereign Debt ETF
PCY
$1.38B
| $1.38M | ﹤0.01% |
63,811
+39,231
| +160% | +$854K |
|
6657
Annexon
ANNX
$980M
| $1.38M | ﹤0.01% |
275,294
+107,794
| +64% | +$412K |
|
6658
State Street SPDR S&P Metals & Mining ETF
XME
$4.41B
| $1.38M | ﹤0.01% |
13,325
-5,840
| -30% | -$577K |
|
6659
CALL
Legend Biotech
LEGN
$3.99B
| $1.38M | ﹤0.01% |
63,500
+26,500
| +72% | +$759K |
|
6660
PUT
Vanguard Long-Term Corporate Bond ETF
VCLT
$8.69B
| $1.38M | ﹤0.01% |
18,200
-7,600
| -29% | -$587K |
|
|
PCH
6661
PUT
DELISTED
PotlatchDeltic
PCH
| $1.38M | ﹤0.01% |
34,700
-10,100
| -23% | -$409K |
|
6662
CALL
Aurinia Pharmaceuticals
AUPH
$2.04B
| $1.38M | ﹤0.01% |
86,500
-51,500
| -37% | -$730K |
|
6663
PUT
Unum
UNM
$14.4B
| $1.38M | ﹤0.01% |
17,800
-32,100
| -64% | -$2.45M |
|
6664
CALL
Vanda Pharmaceuticals
VNDA
$319M
| $1.38M | ﹤0.01% |
156,400
+136,700
| +694% | +$752K |
|
|
WAR
6665
U.S. Global Technology and Aerospace & Defense ETF
WAR
$39.4M
| $1.38M | ﹤0.01% |
+59,708
| New | +$1.51M |
|
6666
Tilray
TLRY
$625M
| $1.38M | ﹤0.01% |
152,589
-32,236
| -17% | -$393K |
|
6667
Standard BioTools
LAB
$265M
| $1.38M | ﹤0.01% |
1,076,361
+587,918
| +120% | +$790K |
|
|
HOOW
6668
PUT
Roundhill HOOD WeeklyPay ETF
HOOW
$130M
| $1.38M | ﹤0.01% |
29,000
-1,100
| -4% | -$70.2K |
|
6669
ProFrac Holding
ACDC
$925M
| $1.38M | ﹤0.01% |
354,048
-299,615
| -46% | -$1.22M |
|
6670
CALL
Hawaiian Electric Industries
HE
$2.02B
| $1.38M | ﹤0.01% |
111,900
-559,000
| -83% | -$6.48M |
|
6671
CALL
Global X Data Center & Digital Infrastructure ETF
DTCR
$2.19B
| $1.38M | ﹤0.01% |
+65,200
| New | +$1.39M |
|
6672
PUT
Skywest
SKYW
$4.04B
| $1.38M | ﹤0.01% |
13,700
-9,700
| -41% | -$971K |
|
6673
PUT
Heritage Insurance Holdings
HRTG
$1.01B
| $1.38M | ﹤0.01% |
47,000
-5,600
| -11% | -$151K |
|
|
CALY
6674
CALL
Callaway Golf Company
CALY
$2.92B
| $1.37M | ﹤0.01% |
117,800
-2,700
| -2% | -$28.5K |
|
6675
CALL
Helios Technologies
HLIO
$2.63B
| $1.37M | ﹤0.01% |
25,700
+14,900
| +138% | +$803K |
|
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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.