Jim Simons Renaissance Technologies
Jim Simons is the founder of Renaissance Technologies, one of the most successful quantitative hedge funds in the world. Before his career in finance, he served as a mathematics professor and made significant contributions to differential geometry. Simons applied his analytical expertise to develop sophisticated, algorithm-driven trading strategies, earning consistently high returns for investors.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class A
GOOGL
|
+$546M |
| 2 |
Microsoft
MSFT
|
+$480M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$362M |
| 4 |
Meta Platforms (Facebook)
META
|
+$350M |
| 5 |
Coca-Cola
KO
|
+$266M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Robinhood
HOOD
|
+$1.04B |
| 2 |
Palantir
PLTR
|
+$800M |
| 3 |
Apple
AAPL
|
+$516M |
| 4 |
Netflix
NFLX
|
+$326M |
| 5 |
NVIDIA
NVDA
|
+$313M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 21.71% |
| 2 | Healthcare | 15.16% |
| 3 | Consumer Discretionary | 11.81% |
| 4 | Communication Services | 10.53% |
| 5 | Financials | 9.27% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
CBL
1101
CBL Properties
CBL
$1.77B
| $9.82M | 0.01% |
321,194
+13,600
| +4% | +$396K |
|
|
UHT
1102
Universal Health Realty Income Trust
UHT
$573M
| $9.8M | 0.01% |
250,210
-4,800
| -2% | -$193K |
|
|
SEE
1103
DELISTED
Sealed Air
SEE
| $9.8M | 0.01% |
277,100
-258,800
| -48% | -$8.25M |
|
1104
Aurora
AUR
$13.4B
| $9.79M | 0.01% |
1,816,800
+557,300
| +44% | +$3.27M |
|
1105
Intapp
INTA
$3.05B
| $9.76M | 0.01% |
238,600
+12,700
| +6% | +$549K |
|
1106
Interface
TILE
$2.23B
| $9.75M | 0.01% |
336,741
+43,852
| +15% | +$1.11M |
|
1107
Amkor Technology
AMKR
$14.3B
| $9.74M | 0.01% |
343,000
-782,100
| -70% | -$18.8M |
|
1108
Cable One
CABO
$191M
| $9.7M | 0.01% |
54,800
-41,200
| -43% | -$6.19M |
|
1109
Columbia Financial
CLBK
$1.21B
| $9.7M | 0.01% |
646,332
+4,591
| +0.7% | +$68.4K |
|
1110
Navigator Holdings
NVGS
$1.26B
| $9.7M | 0.01% |
625,920
-36,768
| -6% | -$587K |
|
1111
Healthpeak Properties
DOC
$14.3B
| $9.69M | 0.01% |
505,968
-136,000
| -21% | -$2.44M |
|
1112
Hawkins
HWKN
$2.67B
| $9.68M | 0.01% |
53,000
-33,898
| -39% | -$5.67M |
|
1113
AMERISAFE
AMSF
$504M
| $9.67M | 0.01% |
220,500
-4,600
| -2% | -$206K |
|
1114
Atmus Filtration Technologies
ATMU
$4.06B
| $9.65M | 0.01% |
214,100
-224,800
| -51% | -$9.43M |
|
1115
Celcuity
CELC
$4.22B
| $9.62M | 0.01% |
194,800
+181,700
| +1,387% | +$7.27M |
|
1116
HEICO Corp
HEI
$52.1B
| $9.61M | 0.01% |
+29,764
| New | +$9.47M |
|
1117
First Industrial Realty Trust
FR
$8.4B
| $9.58M | 0.01% |
186,100
-18,000
| -9% | -$904K |
|
1118
Novanta
NOVT
$6.33B
| $9.57M | 0.01% |
95,600
+49,200
| +106% | +$5.86M |
|
1119
Pembina Pipeline
PBA
$28.4B
| $9.56M | 0.01% |
236,164
+4,900
| +2% | +$185K |
|
|
AIV
1120
Aimco
AIV
$379M
| $9.53M | 0.01% |
1,201,640
+849,000
| +241% | +$6.9M |
|
1121
News Corp Class A
NWSA
$15.5B
| $9.5M | 0.01% |
309,500
-14,100
| -4% | -$418K |
|
1122
Federal Signal
FSS
$7.51B
| $9.46M | 0.01% |
79,500
+19,900
| +33% | +$2.39M |
|
1123
TriCo Bancshares
TCBK
$1.86B
| $9.43M | 0.01% |
212,443
-48,074
| -18% | -$2.09M |
|
1124
Green Plains
GPRE
$1.09B
| $9.43M | 0.01% |
1,072,929
+376,800
| +54% | +$3.3M |
|
1125
Community Trust Bancorp
CTBI
$1.44B
| $9.42M | 0.01% |
168,282
+6,400
| +4% | +$359K |
|
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Jim Simons's Q3 2025 Portfolio in Review
As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.
- Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
- Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
- Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
- Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
- Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
- Jim Simons opened 516 new positions and closed 581 in Q3 2025.
- Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.
Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.