Jim Simons
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Jim Simons’s Certara CERT Stock Holding History

Jim Simons’s Portfolio CERT Stock Details CERT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.48M Buy
684,700
+330,200
+93% +$1.86M 0.01% 1525
2026
Q1 		$2.02M Buy
354,500
+324,900
+1,098% +$2.48M ﹤0.01% 1889
2025
Q4 		$261K Sell
29,600
-93,020
-76% -$958K ﹤0.01% 2812
2025
Q3 		$1.5M Sell
122,620
-174,180
-59% -$1.91M ﹤0.01% 2257
2025
Q2 		$3.47M Buy
+296,800
New +$3.51M ﹤0.01% 1754
2024
Q4 		– Sell
-113,500
Closed -$1.33M – 3597
2024
Q3 		$1.33M Buy
+113,500
New +$1.5M ﹤0.01% 2279
2023
Q2 		– Sell
-115,900
Closed -$2.79M – 3946
2023
Q1 		$2.79M Buy
115,900
+21,000
+22% +$415K ﹤0.01% 1817
2022
Q4 		$1.52M Buy
94,900
+67,100
+241% +$973K ﹤0.01% 2252
2022
Q3 		$369K Sell
27,800
-2,200
-7% -$40.6K ﹤0.01% 3098
2022
Q2 		$644K Buy
30,000
+18,900
+170% +$373K ﹤0.01% 2995
2022
Q1 		$238K Sell
11,100
-114,000
-91% -$2.74M ﹤0.01% 3571
2021
Q4 		$3.56M Sell
125,100
-54,000
-30% -$1.82M ﹤0.01% 1751
2021
Q3 		$5.93M Buy
179,100
+87,800
+96% +$2.65M 0.01% 1356
2021
Q2 		$2.59M Buy
+91,300
New +$2.54M ﹤0.01% 2075

Other funds holding CERT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Deerfield Management
Deerfield Management New York $9.6B AUM 113.36% 1-Year Est. Return
Haveli Investment Management
Haveli Investment Management Austin, Texas $180M AUM
Jefferies Financial Group
Jefferies Financial Group New York $15.2B AUM 55.75% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Wasatch Advisors
Wasatch Advisors Salt Lake City, Utah $13.5B AUM 16.58% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jim Simons's CERT Position: Q2 2026 in Review

Jim Simons increased its Certara (CERT) stake by 93% in Q2 2026, buying an estimated $1.86M and bringing the position to 684,700 shares worth $4.48M. The position accounts for 0.01% of the portfolio, ranked #1525.

Jim Simons first reported a position in CERT in Q2 2021 and has held it in 14 quarters since. The position peaked at $5.93M in Q3 2021. 241 funds tracked by Wall St. Rank hold CERT as of Q2 2026.

  • Jim Simons held 684,700 shares of Certara worth $4.48M as of Q2 2026.
  • Jim Simons bought 330,200 Certara shares in Q2 2026, an estimated $1.86M.
  • Certara made up 0.01% of Jim Simons's portfolio in Q2 2026, its #1525 holding.
  • Jim Simons first reported a position in Certara in Q2 2021 and has held it in 14 quarters since.
  • Jim Simons's Certara position peaked at $5.93M in Q3 2021.
  • 241 funds tracked by Wall St. Rank held Certara as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.