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 | |
|---|---|---|---|---|---|---|
4051
dLocal
DLO
$4.17B
| $5.7M | ﹤0.01% |
402,887
-1,397,857
| -78% | -$19.7M |
|
4052
CALL
Mid-America Apartment Communities
MAA
$15.5B
| $5.7M | ﹤0.01% |
41,000
+800
| +2% | +$107K |
|
4053
Sprout Social
SPT
$599M
| $5.69M | ﹤0.01% |
504,756
+175,090
| +53% | +$1.89M |
|
4054
PUT
Xcel Energy
XEL
$49.5B
| $5.69M | ﹤0.01% |
77,000
-248,300
| -76% | -$19.6M |
|
4055
Enterprise Products Partners
EPD
$84B
| $5.68M | ﹤0.01% |
177,267
+169,933
| +2,317% | +$5.37M |
|
4056
Vor Biopharma
VOR
$1.36B
| $5.68M | ﹤0.01% |
433,894
+428,208
| +7,531% | +$7.97M |
|
4057
Genco Shipping & Trading
GNK
$1.15B
| $5.68M | ﹤0.01% |
307,931
+113,982
| +59% | +$2M |
|
4058
CALL
Medifast
MED
$128M
| $5.67M | ﹤0.01% |
530,800
+285,100
| +116% | +$3.41M |
|
|
TERN
4059
CALL
DELISTED
Terns Pharmaceuticals
TERN
| $5.67M | ﹤0.01% |
140,300
+84,500
| +151% | +$1.95M |
|
4060
Diebold Nixdorf
DBD
$2.48B
| $5.66M | ﹤0.01% |
83,419
+67,429
| +422% | +$4.21M |
|
4061
Microvast
MVST
$322M
| $5.66M | ﹤0.01% |
2,021,544
+1,042,742
| +107% | +$4.36M |
|
4062
Kontoor Brands
KTB
$4.64B
| $5.66M | ﹤0.01% |
+92,578
| New | +$6.87M |
|
4063
CALL
Valaris
VAL
$5.95B
| $5.65M | ﹤0.01% |
112,200
-145,900
| -57% | -$7.83M |
|
4064
PUT
Transportadora de Gas del Sur
TGS
$4.23B
| $5.65M | ﹤0.01% |
181,800
+15,500
| +9% | +$438K |
|
4065
Flotek Industries
FTK
$1.3B
| $5.65M | ﹤0.01% |
327,948
-203,340
| -38% | -$3.23M |
|
4066
Energy Recovery
ERII
$426M
| $5.65M | ﹤0.01% |
418,587
+86,767
| +26% | +$1.32M |
|
4067
CALL
Peloton Interactive
PTON
$2.47B
| $5.65M | ﹤0.01% |
916,600
-538,800
| -37% | -$3.79M |
|
4068
PUT
Arbor Realty Trust
ABR
$950M
| $5.64M | ﹤0.01% |
727,200
+266,400
| +58% | +$2.61M |
|
4069
ACM Research
ACMR
$5.6B
| $5.64M | ﹤0.01% |
143,022
-251,947
| -64% | -$9.39M |
|
4070
Regency Centers
REG
$14B
| $5.64M | ﹤0.01% |
81,708
-60,249
| -42% | -$4.22M |
|
4071
Fidelity Emerging Markets Multifactor ETF
FDEM
$591M
| $5.64M | ﹤0.01% |
182,647
+52,323
| +40% | +$1.6M |
|
4072
Direxion Daily S&P 500 Bull 3x ETF
SPXL
$7.36B
| $5.64M | ﹤0.01% |
+25,566
| New | +$5.56M |
|
4073
Evertec
EVTC
$1.89B
| $5.64M | ﹤0.01% |
193,825
+123,332
| +175% | +$3.66M |
|
4074
PUT
Cal-Maine
CALM
$3.8B
| $5.63M | ﹤0.01% |
70,800
+11,600
| +20% | +$1.02M |
|
|
FIGR
4075
PUT
Figure Technology Solutions
FIGR
$7.03B
| $5.63M | ﹤0.01% |
137,800
+9,100
| +7% | +$364K |
|
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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.