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 | |
|---|---|---|---|---|---|---|
1526
CALL
XPeng
XPEV
$11.2B
| $44.2M | 0.01% |
2,177,300
+720,900
| +49% | +$15.6M |
|
1527
Campbell Soup
CPB
$6.93B
| $44.1M | 0.01% |
1,581,132
-894,363
| -36% | -$26.9M |
|
1528
Dianthus Therapeutics
DNTH
$6.45B
| $44.1M | 0.01% |
1,068,934
+55,433
| +5% | +$2.15M |
|
|
NBIS
1529
Nebius Group N.V.
NBIS
$74B
| $44M | 0.01% |
526,246
-439,755
| -46% | -$45.6M |
|
1530
Rubrik
RBRK
$21.2B
| $44M | 0.01% |
575,873
-2,103,346
| -79% | -$161M |
|
1531
Invesco S&P 500 Equal Weight ETF
RSP
$100B
| $44M | 0.01% |
229,742
+90,053
| +64% | +$17.1M |
|
1532
CALL
Caesars Entertainment
CZR
$6.05B
| $43.6M | 0.01% |
1,866,100
+1,031,000
| +123% | +$23.2M |
|
1533
PUT
Lennar Class A
LEN
$20.9B
| $43.6M | 0.01% |
424,200
-392,000
| -48% | -$47.3M |
|
1534
Genius Sports
GENI
$2.34B
| $43.5M | 0.01% |
3,949,793
+1,746,427
| +79% | +$19M |
|
1535
PUT
Five Below
FIVE
$13.6B
| $43.5M | 0.01% |
231,000
-86,400
| -27% | -$14M |
|
1536
CALL
Paychex
PAYX
$43.5B
| $43.5M | 0.01% |
387,700
+20,900
| +6% | +$2.45M |
|
|
HAPN
1537
Happen Inc
HAPN
$2.27B
| $43.4M | 0.01% |
2,294,049
+69,391
| +3% | +$1.23M |
|
1538
State Street SPDR S&P Homebuilders ETF
XHB
$1.59B
| $43.4M | 0.01% |
421,874
+348,202
| +473% | +$37M |
|
1539
CALL
NuScale Power
SMR
$3.84B
| $43.4M | 0.01% |
3,063,400
-1,361,800
| -31% | -$38.9M |
|
1540
Lattice Semiconductor
LSCC
$18.5B
| $43.4M | 0.01% |
589,863
-843,920
| -59% | -$60.1M |
|
1541
PUT
Cencora
COR
$59.5B
| $43.4M | 0.01% |
128,400
-4,100
| -3% | -$1.4M |
|
1542
PUT
Snap
SNAP
$9.1B
| $43.4M | 0.01% |
5,373,000
-427,200
| -7% | -$3.38M |
|
1543
Summit Therapeutics
SMMT
$10.8B
| $43.3M | 0.01% |
2,475,708
+2,272,996
| +1,121% | +$42.8M |
|
1544
PUT
Suncor Energy
SU
$77.5B
| $43.3M | 0.01% |
975,600
+227,500
| +30% | +$9.62M |
|
1545
Sunrun
RUN
$2.42B
| $43.2M | 0.01% |
2,348,768
-416,116
| -15% | -$7.98M |
|
1546
Alcon
ALC
$36B
| $43.1M | 0.01% |
547,304
+319,751
| +141% | +$24.6M |
|
1547
PUT
Wingstop
WING
$3.39B
| $43.1M | 0.01% |
180,800
-34,600
| -16% | -$8.57M |
|
1548
PUT
Nice
NICE
$6.03B
| $43.1M | 0.01% |
381,000
-211,400
| -36% | -$25.5M |
|
|
ABVX
1549
CALL
Abivax
ABVX
$10.4B
| $43.1M | 0.01% |
319,300
+315,300
| +7,883% | +$34.4M |
|
1550
Telus
TU
$15.3B
| $43M | 0.01% |
3,261,922
+2,960,516
| +982% | +$41.7M |
|
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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.