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 | |
|---|---|---|---|---|---|---|
|
KWM
12026
K Wave Media Ltd
KWM
$6.49M
| $46K | ﹤0.01% |
+3,739
| New | +$161K |
|
12027
PUT
Eledon Pharmaceuticals
ELDN
$288M
| $45.8K | ﹤0.01% |
30,300
-3,100
| -9% | -$7.37K |
|
12028
PUT
Jasper Therapeutics
JSPR
$26.3M
| $45.8K | ﹤0.01% |
25,000
+7,600
| +44% | +$15.3K |
|
|
MAXN
12029
CALL
DELISTED
Maxeon Solar Technologies
MAXN
| $45.7K | ﹤0.01% |
16,635
+5,099
| +44% | +$16.9K |
|
|
NAAS
12030
NaaS Technology Inc
NAAS
$57.1M
| $45.7K | ﹤0.01% |
+13,531
| New | +$48.5K |
|
|
NVX
12031
NOVONIX
NVX
$110M
| $45.5K | ﹤0.01% |
45,076
-64,298
| -59% | -$91.2K |
|
|
FBGL
12032
FBS Global
FBGL
$5.34M
| $45.3K | ﹤0.01% |
47,400
-677
| -1% | -$473 |
|
12033
TDH Holdings
PETZ
$14.2M
| $45.2K | ﹤0.01% |
49,723
+15,362
| +45% | +$15.9K |
|
12034
RenovoRx
RNXT
$63.2M
| $44.9K | ﹤0.01% |
53,408
-67,933
| -56% | -$68K |
|
|
SUNE
12035
SUNation Energy
SUNE
$10.6M
| $44.8K | ﹤0.01% |
+43,539
| New | +$58.4K |
|
|
AIXI
12036
Xiao-I
AIXI
$761K
| $44.6K | ﹤0.01% |
5,443
+4,453
| +450% | +$76.9K |
|
12037
Upland Software
UPLD
$15.7M
| $44.5K | ﹤0.01% |
+3,111
| New | +$59.3K |
|
12038
PUT
Veru
VERU
$46.5M
| $44.3K | ﹤0.01% |
20,700
-4,180
| -17% | -$12.4K |
|
|
WPRT
12039
Westport Fuel Systems
WPRT
$33.4M
| $44.3K | ﹤0.01% |
28,186
-22,647
| -45% | -$42.4K |
|
|
NEWP
12040
CALL
New Pacific Metals
NEWP
$1.27B
| $44.2K | ﹤0.01% |
12,600
-16,900
| -57% | -$46.3K |
|
|
OIO
12041
OIO Group
OIO
$679M
| $44.2K | ﹤0.01% |
3,684
-1,857
| -34% | -$21.9K |
|
12042
CALL
PetMed Express
PETS
$39.5M
| $44.2K | ﹤0.01% |
+13,800
| New | +$34.6K |
|
12043
CALL
VirTra
VTSI
$36.6M
| $44.1K | ﹤0.01% |
+10,500
| New | +$54.8K |
|
|
BDN
12044
CALL
Brandywine Realty Trust
BDN
$532M
| $44.1K | ﹤0.01% |
15,100
+1,800
| +14% | +$6.12K |
|
12045
Kiora Pharmaceuticals
KPRX
$11.3M
| $44.1K | ﹤0.01% |
22,381
-22,192
| -50% | -$50.6K |
|
12046
Hongli Group
HLP
$94.9M
| $44.1K | ﹤0.01% |
42,369
+1,646
| +4% | +$2.39K |
|
12047
Ostin Technology Group
OST
| $44.1K | ﹤0.01% |
34,652
| – | – |
|
12048
PUT
RLX Technology
RLX
$2.37B
| $44K | ﹤0.01% |
18,900
-18,100
| -49% | -$43.4K |
|
|
XTLB
12049
XTL Biopharmaceuticals
XTLB
$6.86M
| $44K | ﹤0.01% |
+18,967
| New | +$76.8K |
|
12050
CALL
XBiotech
XBIT
$70.1M
| $44K | ﹤0.01% |
+18,400
| New | +$45.4K |
|
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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.