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 |
|---|---|---|---|---|---|
| Jump Financial, LLC | 0 | $0 | 0.00% | −19,520−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −19,166−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −15,480−100.0% | Sold out |
| QRG Capital Management, Inc. | 0 | $0 | 0.00% | −14,009−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −13,586−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −12,811−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −11,121−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −5,209−100.0% | Sold out |
| Mount Yale Investment Advisors, LLC | 0 | $0 | 0.00% | −2,071−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −1,775−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −751−100.0% | Sold out |
| Comerica Bank | 0 | $0 | 0.00% | −701−100.0% | Sold out |
| Trust Co of Vermont | 0 | $0 | 0.00% | −207−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −180−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Washington Harbour Partners LP | – | – | – | – | Not filed |
| EP Wealth Advisors, LLC | – | – | – | – | Not filed |