Jim Simons
IAS

Jim Simons’s Integral Ad Science IAS Stock Holding History

Jim Simons’s Portfolio IAS Stock Details IAS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-232,300
Closed -$1.93M – 3671
2025
Q2 		$1.93M Sell
232,300
-207,700
-47% -$1.58M ﹤0.01% 2136
2025
Q1 		$3.55M Buy
440,000
+232,400
+112% +$2.32M 0.01% 1643
2024
Q4 		$2.17M Buy
207,600
+3,400
+2% +$37.3K ﹤0.01% 1999
2024
Q3 		$2.21M Buy
204,200
+143,700
+238% +$1.54M ﹤0.01% 1953
2024
Q2 		$588K Sell
60,500
-4,300
-7% -$41.2K ﹤0.01% 2619
2024
Q1 		$646K Sell
64,800
-413,900
-86% -$5.52M ﹤0.01% 2757
2023
Q4 		$6.89M Sell
478,700
-188,400
-28% -$2.52M 0.01% 1148
2023
Q3 		$7.93M Buy
667,100
+272,200
+69% +$4.21M 0.01% 1054
2023
Q2 		$7.1M Buy
394,900
+196,800
+99% +$3.32M 0.01% 1206
2023
Q1 		$2.83M Sell
198,100
-11,980
-6% -$135K ﹤0.01% 1807
2022
Q4 		$1.85M Sell
210,080
-142,620
-40% -$1.21M ﹤0.01% 2120
2022
Q3 		$2.55M Buy
352,700
+303,200
+613% +$2.71M ﹤0.01% 1867
2022
Q2 		$492K Buy
+49,500
New +$591K ﹤0.01% 3173
2022
Q1 		– Sell
-30,219
Closed -$671K – 4237
2021
Q4 		$671K Buy
+30,219
New +$688K ﹤0.01% 2930

Other funds holding IAS

VEPM
Vista Equity Partners Management San Francisco, California $42.7M AUM 16.65% 1-Year Est. Return
AVA
Atlas Venture Advisors Boston, Massachusetts $143M AUM 25.68% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
SM
Sunriver Management Greenwich, Connecticut $591M AUM 2.74% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
PCP
P2 Capital Partners New York $210M AUM 1.23% 1-Year Est. Return
KC
Kryger Capital London, United Kingdom $1.41B AUM 86.31% 1-Year Est. Return
NAM
Nexpoint Asset Management Dallas, Texas $1.49B AUM 61.08% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return

Jim Simons's IAS Position: Q3 2025 in Review

Jim Simons sold out of Integral Ad Science (IAS) in Q3 2025, closing a stake of 232,300 shares — an estimated $1.93M sold.

Jim Simons first reported a position in IAS in Q4 2021 and held it in 14 quarters. The position peaked at $7.93M in Q3 2023. 171 funds tracked by Wall St. Rank hold IAS as of Q3 2025.

  • Jim Simons reported no remaining Integral Ad Science position as of Q3 2025 after selling out during the quarter.
  • Jim Simons sold 232,300 Integral Ad Science shares in Q3 2025, an estimated $1.93M.
  • Jim Simons first reported a position in Integral Ad Science in Q4 2021 and held it in 14 quarters.
  • Jim Simons's Integral Ad Science position peaked at $7.93M in Q3 2023.
  • 171 funds tracked by Wall St. Rank held Integral Ad Science as of Q3 2025.

Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.