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 | |
|---|---|---|---|---|---|---|
3526
Better Home & Finance Holding
BETR
$261M
| $7.99M | ﹤0.01% |
245,091
+13,427
| +6% | +$726K |
|
|
ORLA
3527
DELISTED
Orla Mining
ORLA
| $7.98M | ﹤0.01% |
592,548
-432,806
| -42% | -$5.25M |
|
3528
Marten Transport
MRTN
$1.24B
| $7.98M | ﹤0.01% |
701,137
+261,990
| +60% | +$2.78M |
|
3529
Disc Medicine
IRON
$3.03B
| $7.97M | ﹤0.01% |
100,395
+50,001
| +99% | +$4.22M |
|
3530
CALL
Albertsons Companies
ACI
$6.03B
| $7.95M | ﹤0.01% |
463,200
-778,300
| -63% | -$13.9M |
|
|
HDRN
3531
Hadron Energy
HDRN
$135M
| $7.95M | ﹤0.01% |
+754,300
| New | +$8.04M |
|
3532
Voya Financial
VOYA
$9.2B
| $7.95M | ﹤0.01% |
106,718
-36,505
| -25% | -$2.66M |
|
3533
Penske Automotive Group
PAG
$14.4B
| $7.95M | ﹤0.01% |
50,215
-76,764
| -60% | -$12.6M |
|
3534
PUT
Conagra Brands
CAG
$7.5B
| $7.95M | ﹤0.01% |
459,100
-354,200
| -44% | -$6.29M |
|
3535
Rigel Pharmaceuticals
RIGL
$795M
| $7.94M | ﹤0.01% |
185,419
+98,955
| +114% | +$3.73M |
|
3536
First Bancorp
FBP
$4.53B
| $7.94M | ﹤0.01% |
382,925
+327,791
| +595% | +$6.75M |
|
3537
Willdan Group
WLDN
$1.32B
| $7.94M | ﹤0.01% |
76,558
-109,316
| -59% | -$10.8M |
|
3538
PUT
Impinj
PI
$5.28B
| $7.93M | ﹤0.01% |
45,600
+13,700
| +43% | +$2.44M |
|
3539
PUT
Braze
BRZE
$3.26B
| $7.91M | ﹤0.01% |
230,800
+73,500
| +47% | +$2.18M |
|
3540
Birkenstock
BIRK
$7B
| $7.91M | ﹤0.01% |
193,423
-1,361,161
| -88% | -$57.6M |
|
|
AXIA
3541
DELISTED
AXIA Energia
AXIA
| $7.91M | ﹤0.01% |
863,251
+372,128
| +76% | +$3.22M |
|
3542
Chemed
CHE
$6.96B
| $7.9M | ﹤0.01% |
18,458
-42,674
| -70% | -$18.6M |
|
3543
Barclays
BCS
$94.7B
| $7.9M | ﹤0.01% |
310,246
-1,279,648
| -80% | -$28.3M |
|
3544
Cal-Maine
CALM
$3.8B
| $7.89M | ﹤0.01% |
99,216
+85,827
| +641% | +$7.54M |
|
3545
Global X MSCI Argentina ETF
ARGT
$808M
| $7.89M | ﹤0.01% |
86,347
+76,321
| +761% | +$6.52M |
|
3546
Kulicke & Soffa
KLIC
$5.19B
| $7.89M | ﹤0.01% |
173,186
-142,833
| -45% | -$6.03M |
|
|
CMBT
3547
CMB.TECH NV
CMBT
$5B
| $7.89M | ﹤0.01% |
817,407
+625,148
| +325% | +$6.08M |
|
3548
PUT
Infosys
INFY
$49B
| $7.88M | ﹤0.01% |
442,400
+230,600
| +109% | +$3.99M |
|
|
VSXY
3549
PUT
Victoria's Secret
VSXY
$7.08B
| $7.88M | ﹤0.01% |
145,500
-170,900
| -54% | -$6.79M |
|
3550
PUT
Copa Holdings
CPA
$6.14B
| $7.88M | ﹤0.01% |
65,300
-23,400
| -26% | -$2.86M |
|
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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.