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 |
Costco
COST
|
+$616M |
| 2 |
Netflix
NFLX
|
+$481M |
| 3 |
Micron Technology
MU
|
+$416M |
| 4 |
Tesla
TSLA
|
+$416M |
| 5 |
Procter & Gamble
PG
|
+$322M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$885M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$660M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$463M |
| 4 |
Applovin
APP
|
+$430M |
| 5 |
Meta Platforms (Facebook)
META
|
+$354M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 20.84% |
| 2 | Healthcare | 15.77% |
| 3 | Consumer Discretionary | 13.88% |
| 4 | Industrials | 9.94% |
| 5 | Financials | 8.79% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
THR
2626
DELISTED
Thermon Group Holdings
THR
| $438K | ﹤0.01% |
11,800
-52,800
| -82% | -$1.73M |
|
|
HYFT
2627
MindWalk Holdings
HYFT
$66.3M
| $435K | ﹤0.01% |
239,080
+18,600
| +8% | +$32.8K |
|
|
KMTS
2628
Kestra Medical Technologies
KMTS
$1.63B
| $435K | ﹤0.01% |
+16,400
| New | +$422K |
|
2629
Richmond Mutual Bancorp
RMBI
$257M
| $434K | ﹤0.01% |
30,942
+5,600
| +22% | +$76.8K |
|
2630
iShares MSCI EAFE ETF
EFA
$80.3B
| $432K | ﹤0.01% |
+4,500
| New | +$427K |
|
2631
WisdomTree US LargeCap Dividend Fund
DLN
$6.44B
| $432K | ﹤0.01% |
4,900
-13,000
| -73% | -$1.14M |
|
2632
FinWise Bancorp
FINW
$189M
| $431K | ﹤0.01% |
24,000
-1,917
| -7% | -$35K |
|
2633
Armata Pharmaceuticals
ARMP
$182M
| $430K | ﹤0.01% |
68,496
+27,200
| +66% | +$149K |
|
2634
Werewolf Therapeutics
HOWL
$19.2M
| $429K | ﹤0.01% |
677,766
+221,766
| +49% | +$270K |
|
2635
Embecta
EMBC
$288M
| $429K | ﹤0.01% |
+36,102
| New | +$476K |
|
2636
NCS Multistage Holdings
NCSM
$132M
| $428K | ﹤0.01% |
10,844
-1,500
| -12% | -$59.9K |
|
2637
Union Bankshares
UNB
$120M
| $428K | ﹤0.01% |
18,032
-981
| -5% | -$23.1K |
|
2638
IRIDEX
IRIX
$14.8M
| $424K | ﹤0.01% |
371,560
-17,500
| -4% | -$18K |
|
2639
Value Line
VALU
$366M
| $423K | ﹤0.01% |
11,000
-900
| -8% | -$34.1K |
|
|
NMAD
2640
Nomad Power Solutions
NMAD
$75.5M
| $422K | ﹤0.01% |
107,500
+34,350
| +47% | +$149K |
|
2641
Oramed Pharmaceuticals
ORMP
$182M
| $420K | ﹤0.01% |
147,500
-1,400
| -0.9% | -$3.61K |
|
2642
Daxor
DXR
$60.7M
| $416K | ﹤0.01% |
28,221
-700
| -2% | -$9.19K |
|
2643
Jasper Therapeutics
JSPR
$28.8M
| $416K | ﹤0.01% |
227,183
+18,683
| +9% | +$37.5K |
|
2644
US Global Investors
GROW
$38.7M
| $414K | ﹤0.01% |
171,615
-18,469
| -10% | -$46K |
|
2645
Scully Royalty
SRL
$90.9M
| $413K | ﹤0.01% |
48,314
+500
| +1% | +$3.06K |
|
|
NOAH
2646
Noah Holdings
NOAH
$588M
| $413K | ﹤0.01% |
41,100
-5,700
| -12% | -$61.9K |
|
2647
Dominari Holdings
DOMH
$70.8M
| $412K | ﹤0.01% |
+83,200
| New | +$425K |
|
2648
EVI Industries
EVI
$204M
| $411K | ﹤0.01% |
16,697
+700
| +4% | +$17.4K |
|
|
BOLD
2649
Boundless Bio
BOLD
$63M
| $410K | ﹤0.01% |
341,400
+117,838
| +53% | +$147K |
|
2650
Methode Electronics
MEI
$603M
| $408K | ﹤0.01% |
61,500
+41,200
| +203% | +$292K |
|
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Jim Simons's Q4 2025 Portfolio in Review
As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.
By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.
- Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
- Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
- Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
- Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
- Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
- Jim Simons opened 466 new positions and closed 737 in Q4 2025.
- Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.
Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.