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 | |
|---|---|---|---|---|---|---|
2101
Precision BioSciences
DTIL
$201M
| $1.36M | ﹤0.01% |
326,477
+130,300
| +66% | +$740K |
|
2102
Schwab Fundamental International Large Company Index ETF
FNDF
$25.8B
| $1.36M | ﹤0.01% |
+30,000
| New | +$1.33M |
|
2103
Immix Biopharma
IMMX
$777M
| $1.35M | ﹤0.01% |
258,600
+237,100
| +1,103% | +$976K |
|
2104
Arq
ARQ
$99.6M
| $1.35M | ﹤0.01% |
412,299
+341,918
| +486% | +$1.67M |
|
2105
Civista Bancshares
CIVB
$595M
| $1.35M | ﹤0.01% |
60,665
+2,100
| +4% | +$46.4K |
|
2106
ARK Web x.0 ETF
ARKW
$1.82B
| $1.34M | ﹤0.01% |
9,100
-17,700
| -66% | -$2.87M |
|
2107
Century Therapeutics
IPSC
$349M
| $1.34M | ﹤0.01% |
1,349,200
-1,237,700
| -48% | -$755K |
|
2108
GraniteShares 2x Long COIN Daily ETF
CONL
$431M
| $1.34M | ﹤0.01% |
91,600
+43,700
| +91% | +$1.23M |
|
2109
Goldgroup Mining Inc.
GORO
$211M
| $1.34M | ﹤0.01% |
1,618,415
-321,255
| -17% | -$256K |
|
2110
State Street SPDR Portfolio Intermediate Term Treasury ETF
SPTI
$10.6B
| $1.34M | ﹤0.01% |
46,400
-142,400
| -75% | -$4.12M |
|
2111
Manitowoc
MTW
$753M
| $1.33M | ﹤0.01% |
111,200
+73,800
| +197% | +$839K |
|
2112
Mayville Engineering Co
MEC
$597M
| $1.33M | ﹤0.01% |
71,200
-83,800
| -54% | -$1.37M |
|
2113
Victory Capital Holdings
VCTR
$7.27B
| $1.33M | ﹤0.01% |
21,100
-32,500
| -61% | -$2.07M |
|
2114
Varonis Systems
VRNS
$5.26B
| $1.33M | ﹤0.01% |
40,561
-165,139
| -80% | -$6.93M |
|
2115
Pearson
PSO
$9.78B
| $1.33M | ﹤0.01% |
94,600
-196,400
| -67% | -$2.72M |
|
|
ADAM
2116
Adamas Trust
ADAM
$907M
| $1.32M | ﹤0.01% |
181,267
-133,743
| -42% | -$949K |
|
2117
Dianthus Therapeutics
DNTH
$6.13B
| $1.32M | ﹤0.01% |
+32,100
| New | +$1.24M |
|
2118
Riverview Bancorp
RVSB
$107M
| $1.32M | ﹤0.01% |
263,507
-39,700
| -13% | -$208K |
|
2119
Amerant Bancorp
AMTB
$1.14B
| $1.32M | ﹤0.01% |
67,635
-3,900
| -5% | -$72.6K |
|
2120
Innodata
INOD
$2.03B
| $1.32M | ﹤0.01% |
25,854
-57,500
| -69% | -$3.75M |
|
2121
Tenaya Therapeutics
TNYA
$164M
| $1.32M | ﹤0.01% |
1,850,867
+172,665
| +10% | +$235K |
|
2122
Independent Bank
INDB
$4.05B
| $1.32M | ﹤0.01% |
18,002
-42,488
| -70% | -$3.02M |
|
2123
Investar Holding Corp
ISTR
$425M
| $1.31M | ﹤0.01% |
49,175
-18,800
| -28% | -$462K |
|
|
FSP
2124
Franklin Street Properties
FSP
$46.4M
| $1.31M | ﹤0.01% |
1,388,426
+479,943
| +53% | +$558K |
|
2125
iShares Core S&P US Growth ETF
IUSG
$34B
| $1.31M | ﹤0.01% |
7,800
-17,500
| -69% | -$2.92M |
|
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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.