Integral Ad Science Holding Corp.
IASDelisted Dec 23, 2025- Industry
- Services-Computer Programming, Data Processing, Etc.
- SEC CIK
- 0001842718
Integral Ad Science Holding Corp. was delisted on Dec 23, 2025; its insiders filed their last Form 4 on Dec 29, 2025; 171 institutions reported holding it in 13F filings for Q3 2025, worth $1.65B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q3 2025
Institutional positions in Integral Ad Science Holding Corp. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
IAS is no longer listed, so this page shows Q3 2025. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 171
- +3 vs. Q2 2025
- Shares held
- 162.3M
- +1.01M (+0.6%) vs. Q2 2025
- Total value
- $1.65B
- +$310.3M (+23.1%) vs. Q2 2025
- New holders
- 47
- 55 more added
- Sold out
- 44
- 48 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IAS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $10 |
| Q1 2026 | 1 | $10 |
| Q4 2025 | 2 | $3.41K |
| Q3 2025 | 171 | $1.65B |
| Q2 2025 | 170 | $1.34B |
| Q1 2025 | 187 | $1.28B |
| Q4 2024 | 165 | $1.64B |
| Q3 2024 | 172 | $1.68B |
| Q2 2024 | 156 | $1.52B |
| Q1 2024 | 166 | $1.51B |
| Q4 2023 | 173 | $2.19B |
| Q3 2023 | 164 | $1.79B |
| Q2 2023 | 168 | $2.71B |
| Q1 2023 | 116 | $2.14B |
| Q4 2022 | 107 | $1.30B |
| Q3 2022 | 104 | $1.08B |
| Q2 2022 | 93 | $1.49B |
| Q1 2022 | 92 | $2.05B |
| Q4 2021 | 80 | $3.41B |
| Q3 2021 | 70 | $2.99B |
| Q2 2021 | 70 | $2.96B |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Integral Ad Science Holding Corp.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State of Wisconsin Investment Board | 69,672 | $708.6K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 70,410 | $716.1K | 0.00% | +3,127+4.6% | Added |
| Morningstar Investment Management LLC | 71,712 | $729.0K | 0.03% | +71,712 | New |
| Canada Pension Plan Investment Board | 72,000 | $732.2K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 72,477 | $737.1K | 0.00% | −420,348−85.3% | Reduced |
| California State Teachers Retirement System | 74,877 | $761.5K | 0.00% | +30.0% | Added |
| Envestnet Asset Management Inc | 75,705 | $769.9K | 0.00% | +2,848+3.9% | Added |
| HSBC Holdings PLC | 78,117 | $794.8K | 0.00% | −19,095−19.6% | Reduced |
| Clune & Associates, Ltd. | 78,540 | $798.8K | 0.20% | −18,750−19.3% | Reduced |
| OP Asset Management Ltd | 83,815 | $852.4K | 0.01% | −23,308−21.8% | Reduced |
| Legal & General Group Plc | 88,135 | $896.3K | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 89,214 | $907.3K | 0.00% | −1,164,835−92.9% | Reduced |
| UBS Asset Management Americas Inc | 96,703 | $983.5K | 0.00% | −98,876−50.6% | Reduced |
| Quinn Opportunity Partners LLC | 100,000 | $1.02M | 0.07% | −160,000−61.5% | Reduced |
| Janney Montgomery Scott LLC | 101,960 | $1.04M | 0.00% | +836+0.8% | Added |
| Rhumbline Advisers | 107,551 | $1.09M | 0.00% | −37,684−25.9% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 114,124 | $1.16M | 0.02% | +38,141+50.2% | Added |
| First Trust Advisors LP | 146,573 | $1.49M | 0.00% | +75,973+107.6% | Added |
| Victory Capital Management Inc | 147,573 | $1.50M | 0.00% | −5,873−3.8% | Reduced |
| AQR Capital Management LLC | 151,888 | $1.54M | 0.00% | +57,803+61.4% | Added |
| Swiss National Bank | 158,700 | $1.61M | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 159,611 | $1.62M | 0.00% | +27,482+20.8% | Added |
| Jane Street Group, LLC | 160,128 | $1.63M | 0.00% | +105,495+193.1% | Added |
| American Century Companies Inc | 173,871 | $1.77M | 0.00% | +41,408+31.3% | Added |
| Rice Hall James & Associates, LLC | 199,103 | $2.02M | 0.11% | −94,053−32.1% | Reduced |
| JPMorgan Chase & Co | 244,469 | $2.49M | 0.00% | +165,445+209.4% | Added |
| Alliancebernstein L.P. | 257,920 | $2.62M | 0.00% | +181,340+236.8% | Added |
| Carmignac Gestion | 266,001 | $2.71M | 0.04% | +266,001 | New |
| SG Americas Securities, LLC | 273,467 | $2.78M | 0.01% | +238,406+680.0% | Added |
| Bank of New York Mellon Corp | 297,019 | $3.02M | 0.00% | +4,982+1.7% | Added |
| Millennium Management LLC | 333,892 | $3.40M | 0.00% | +333,892 | New |
| Standard Life Aberdeen plc | 335,915 | $3.42M | 0.01% | −1,428,816−81.0% | Reduced |
| Gabelli & Co Investment Advisers, Inc. | 350,600 | $3.57M | 0.57% | +350,600 | New |
| Susquehanna International Group, LLP | 375,113 | $3.81M | 0.01% | +188,340+100.8% | Added |
| Gabelli Funds LLC | 383,797 | $3.90M | 0.03% | +383,797 | New |
| Clearline Capital LP | 419,221 | $4.26M | 0.37% | −96,063−18.6% | Reduced |
| Circumference Group LLC | 450,000 | $4.58M | 5.37% | +100,000+28.6% | Added |
| Monimus Capital Management, LP | 464,110 | $4.72M | 3.51% | −201,355−30.3% | Reduced |
| Barclays PLC | 477,908 | $4.86M | 0.00% | +158,921+49.8% | Added |
| Morgan Stanley | 491,740 | $5.00M | 0.00% | −63,590−11.5% | Reduced |
| Qube Research & Technologies Ltd | 521,420 | $5.30M | 0.01% | +337,765+183.9% | Added |
| CenterBook Partners LP | 536,066 | $5.45M | 0.27% | −1,180,536−68.8% | Reduced |
| UBS Group AG | 574,116 | $5.84M | 0.00% | +269,577+88.5% | Added |
| Pacer Advisors, Inc. | 582,510 | $5.92M | 0.02% | +582,510 | New |
| Charles Schwab Investment Management Inc | 637,495 | $6.48M | 0.00% | +21,381+3.5% | Added |
| Alpine Associates Management Inc. | 641,140 | $6.52M | 0.40% | +641,140 | New |
| Ararat Capital Management, LP | 668,407 | $6.80M | 3.64% | −1,487,747−69.0% | Reduced |
| Goldman Sachs Group Inc | 767,555 | $7.81M | 0.00% | +447,135+139.5% | Added |
| Dana Investment Advisors, Inc. | 793,740 | $8.07M | 0.24% | +682,163+611.4% | Added |
| Northern Trust Corp | 805,536 | $8.19M | 0.00% | −5,862−0.7% | Reduced |
| CNH Partners LLC | 991,705 | $10.1M | 0.26% | +991,705 | New |
| Polar Asset Management Partners Inc. | 1,000,000 | $10.2M | 0.21% | +1,000,000 | New |
| Water Island Capital LLC | 1,071,160 | $10.9M | 1.56% | +1,071,160 | New |
| Balyasny Asset Management LLC | 1,166,530 | $11.9M | 0.02% | +1,166,530 | New |
| Nuveen, LLC | 1,369,706 | $13.9M | 0.00% | −485,906−26.2% | Reduced |
| Bank of America Corp | 1,394,507 | $14.2M | 0.00% | +755,414+118.2% | Added |
| State Street Corp | 1,643,118 | $16.7M | 0.00% | +33,990+2.1% | Added |
| Verition Fund Management LLC | 1,948,970 | $19.8M | 0.11% | +1,838,435+1,663.2% | Added |
| Geode Capital Management, LLC | 1,964,293 | $20.0M | 0.00% | +48,908+2.6% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 1,990,000 | $20.2M | 0.32% | +1,990,000 | New |
| Vivaldi Asset Management, LLC | 2,088,796 | $21.2M | 1.37% | +2,088,796 | New |
| Glazer Capital, LLC | 2,096,797 | $21.3M | 0.72% | +2,096,797 | New |
| Highland Capital Management Fund Advisors, L.P. | 2,683,061 | $27.3M | 2.43% | +2,683,061 | New |
| Omni Event Management Ltd | 3,000,000 | $30.5M | 3.52% | +3,000,000 | New |
| P2 Capital Partners, LLC | 4,830,805 | $49.1M | 10.09% | −79,195−1.6% | Reduced |
| Dimensional Fund Advisors LP | 5,949,164 | $60.5M | 0.01% | +542,771+10.0% | Added |
| BlackRock, Inc. | 6,757,261 | $68.7M | 0.00% | +89,656+1.3% | Added |
| Sunriver Management LLC | 7,120,157 | $72.4M | 7.87% | −1,702,757−19.3% | Reduced |
| Vanguard Group Inc | 9,043,380 | $92.0M | 0.00% | −212,517−2.3% | Reduced |
| Atlas Venture Advisors, Inc. | 22,722,770 | $231.1M | 52.79% | 00.0% | Unchanged |
| Vista Equity Partners Management, LLC | 65,010,001 | $661.2M | 55.63% | 00.0% | Unchanged |
| Rubric Capital Management LP | 0 | $0 | 0.00% | −2,971,951−100.0% | Sold out |
| Corvex Management LP | 0 | $0 | 0.00% | −2,618,000−100.0% | Sold out |
| Clearbridge Investments, LLC | 0 | $0 | 0.00% | −2,325,232−100.0% | Sold out |
| Alta Fox Capital Management, LLC | 0 | $0 | 0.00% | −1,800,090−100.0% | Sold out |
| Invenomic Capital Management LP | 0 | $0 | 0.00% | −1,580,066−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −1,035,774−100.0% | Sold out |
| Frontier Capital Management Co LLC | 0 | $0 | 0.00% | −822,643−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −232,300−100.0% | Sold out |
| one8zero8, LLC | 0 | $0 | 0.00% | −209,425−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −170,208−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −164,250−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −117,229−100.0% | Sold out |
| Manatuck Hill Partners, LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −88,272−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −72,138−100.0% | Sold out |
| Delphi Management Inc | 0 | $0 | 0.00% | −64,804−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −63,817−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −59,310−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −56,100−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −52,600−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −50,685−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −44,354−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −40,902−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −28,347−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −26,314−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −25,957−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −25,029−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −22,762−100.0% | Sold out |