Integral Ad Science Holding Cor

Historical 13F Holders

Symbol
IAS
CUSIP
45828L108
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 45828L108 since 12/18/2024, largest first.

Filer % of Class Filed
Under 5%, checked the "5 percent or less" box, or amended by a later filing (4)
Sunriver Management LLC 13G/A
4.3% 11/13/2025
Event 9/30/2025
Glazer Capital, LLC 13G/A
4.2% 2/12/2026
Event 12/31/2025
Atlas Venture Fund VIII, L.P. 13G/A
0% 12/23/2025
Event 12/23/2025
Vista Equity Partners Fund VI, L.P. 13G/A
0% 12/29/2025
Event 12/23/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q2 1 1.00 $10.00
2026 Q1 1 1.00 $10.00
2025 Q4 3 330 $3.41 k
2025 Q3 177 163 M $1.65 B
2025 Q2 174 162 M $1.34 B
2025 Q1 193 159 M $1.28 B
2024 Q4 171 157 M $1.64 B
2024 Q3 180 156 M $1.69 B
2024 Q2 169 158 M $1.54 B
2024 Q1 175 153 M $1.53 B
2023 Q4 182 159 M $2.29 B
2023 Q3 170 153 M $1.82 B
2023 Q2 176 154 M $2.76 B
2023 Q1 122 151 M $2.16 B
2022 Q4 113 149 M $1.31 B
2022 Q3 106 149 M $1.08 B
2022 Q2 94 150 M $1.49 B
2022 Q1 94 149 M $2.05 B
2021 Q4 82 153 M $3.41 B
2021 Q3 71 145 M $2.99 B
2021 Q2 71 144 M $2.96 B