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 |
Meta Platforms (Facebook)
META
|
+$1.45B |
| 2 |
Visa
V
|
+$1.05B |
| 3 |
Microsoft
MSFT
|
+$1.01B |
| 4 |
Apple
AAPL
|
+$578M |
| 5 |
Norfolk Southern
NSC
|
+$545M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
HES
Hess
HES
|
+$1.24B |
| 2 |
McDonald's
MCD
|
+$707M |
| 3 |
JPMorgan Chase
JPM
|
+$680M |
| 4 |
Texas Instruments
TXN
|
+$678M |
| 5 |
Edwards Lifesciences
EW
|
+$664M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.8% |
| 2 | Healthcare | 2.66% |
| 3 | Financials | 2.38% |
| 4 | Consumer Discretionary | 2.05% |
| 5 | Industrials | 2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
WPRT
11701
Westport Fuel Systems
WPRT
$33.4M
| $115K | ﹤0.01% |
50,833
+34,555
| +212% | +$107K |
|
11702
FibroBiologics
FBLG
$7.06M
| $115K | ﹤0.01% |
10,557
-1,111
| -10% | -$13.3K |
|
|
DJTU
11703
PUT
T-REX 2X Long DJT Daily Target ETF
DJTU
$8.82M
| $115K | ﹤0.01% |
+1,460
| New | +$145K |
|
|
CV
11704
CapsoVision Inc
CV
$323M
| $115K | ﹤0.01% |
+23,735
| New | +$99.6K |
|
11705
CALL
Janus International
JBI
$697M
| $114K | ﹤0.01% |
+11,600
| New | +$112K |
|
11706
CALL
Citius Pharmaceuticals
CTXR
$20.7M
| $114K | ﹤0.01% |
92,300
+56,500
| +158% | +$78.8K |
|
|
TONT
11707
Graf Global Corp
TONT
$154M
| $114K | ﹤0.01% |
10,839
+808
| +8% | +$8.48K |
|
|
CEPO
11708
PUT
Cantor Equity Partners I
CEPO
$272M
| $114K | ﹤0.01% |
+10,900
| New | +$121K |
|
|
MREO
11709
PUT
Mereo BioPharma
MREO
$50.9M
| $114K | ﹤0.01% |
55,300
-44,500
| -45% | -$82K |
|
11710
XBiotech
XBIT
$70.1M
| $114K | ﹤0.01% |
42,816
+10,333
| +32% | +$30.6K |
|
11711
Skye Bioscience
SKYE
$17.6M
| $113K | ﹤0.01% |
+28,852
| New | +$109K |
|
11712
Empire State Realty Series ES
ESBA
$1.29B
| $113K | ﹤0.01% |
15,230
+2,343
| +18% | +$17.5K |
|
11713
Polen Capital International Growth ETF
PCIG
$29.6M
| $113K | ﹤0.01% |
12,073
-1,732
| -13% | -$16.4K |
|
11714
PUT
Ring Energy
REI
$357M
| $113K | ﹤0.01% |
103,600
+18,300
| +21% | +$16.6K |
|
11715
American Vanguard Corp
AVD
$62.5M
| $113K | ﹤0.01% |
19,626
-108,040
| -85% | -$515K |
|
|
OPTU
11716
PUT
Optimum Communications Inc
OPTU
$251M
| $113K | ﹤0.01% |
46,700
+10,600
| +29% | +$26K |
|
|
IRBT
11717
DELISTED
iRobot
IRBT
| $112K | ﹤0.01% |
31,272
-90,275
| -74% | -$349K |
|
11718
PUT
Select Water Solutions
WTTR
$2.69B
| $112K | ﹤0.01% |
+10,500
| New | +$95.9K |
|
11719
CALL
RE/MAX Holdings
RMAX
$268M
| $112K | ﹤0.01% |
11,900
-4,400
| -27% | -$38.8K |
|
|
ALF
11720
Centurion Acquisition Corp
ALF
| $112K | ﹤0.01% |
+10,624
| New | +$112K |
|
|
PCAPU
11721
ProCap Acquisition Corp Unit
PCAPU
| $112K | ﹤0.01% |
10,561
-320,583
| -97% | -$3.37M |
|
11722
PUT
HighPeak Energy
HPK
$940M
| $112K | ﹤0.01% |
+15,800
| New | +$130K |
|
|
SLN
11723
Silence Therapeutics
SLN
$648M
| $112K | ﹤0.01% |
+21,505
| New | +$119K |
|
11724
CALL
Sky Harbour Group
SKYH
$395M
| $112K | ﹤0.01% |
+11,300
| New | +$115K |
|
11725
PUT
QuickLogic
QUIK
$234M
| $112K | ﹤0.01% |
18,400
-27,100
| -60% | -$160K |
|
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Ken Griffin's Q3 2025 Portfolio in Review
As of Q3 2025, Ken Griffin held 14,587 positions worth $657B, up 14% from $576B the previous quarter. Its ten largest holdings account for 25% of the portfolio.
Ken Griffin's Q3 2025 filing shows 2,292 new, 5,364 increased, 4,887 reduced and 1,963 closed positions. Its largest new stake was Permian Resources: 18,381,735 shares worth $235M. The largest sale was Hess, an estimated $1.24B.
By sector, the portfolio is most concentrated in Technology at 3.8% of assets, up from 3.3% a quarter earlier, followed by Healthcare and Financials.
- Ken Griffin's largest Q3 2025 buy was Permian Resources: 18,381,735 shares worth $235M.
- Ken Griffin added most to Meta Platforms (Facebook) in Q3 2025, an estimated $1.45B increase.
- Ken Griffin's biggest Q3 2025 reduction was McDonald's, cutting an estimated $707M.
- Ken Griffin fully exited Hess in Q3 2025, selling an estimated $1.24B.
- Ken Griffin's ten largest holdings make up 25% of its $657B portfolio in Q3 2025.
- Ken Griffin opened 2,292 new positions and closed 1,963 in Q3 2025.
- Ken Griffin's portfolio value rose 14% quarter-over-quarter to $657B.
Based on Citadel Advisors's 13F filing for Q3 2025, filed 14 Nov 2025.