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 |
|---|---|---|---|---|---|
| KLP Kapitalforvaltning AS | 24,600 | $250.2K | 0.00% | 00.0% | Unchanged |
| Mariner, LLC | 24,502 | $249.2K | 0.00% | +10,205+71.4% | Added |
| Arizona State Retirement System | 24,415 | $248.3K | 0.00% | +516+2.2% | Added |
| Pitcairn Co | 24,272 | $246.8K | 0.02% | −11,670−32.5% | Reduced |
| Creative Planning | 23,507 | $239.1K | 0.00% | +8,808+59.9% | Added |
| Police & Firemen's Retirement System of New Jersey | 22,650 | $230.3K | 0.00% | +4,147+22.4% | Added |
| State of Wyoming | 21,530 | $219.0K | 0.02% | +21,530 | New |
| New York State Common Retirement Fund | 19,968 | $203.1K | 0.00% | 00.0% | Unchanged |
| Cornerstone Investment Partners, LLC | 18,477 | $187.9K | 0.01% | +18,477 | New |
| Guggenheim Capital LLC | 17,114 | $174.0K | 0.00% | +17,114 | New |
| Franklin Resources Inc | 16,865 | $171.5K | 0.00% | −674−3.8% | Reduced |
| Intrust Bank NA | 16,668 | $169.5K | 0.01% | −685−3.9% | Reduced |
| Gotham Asset Management, LLC | 16,070 | $163.4K | 0.00% | +362+2.3% | Added |
| Mercer Global Advisors Inc | 15,429 | $156.9K | 0.00% | +4,018+35.2% | Added |
| Citigroup Inc | 14,876 | $151.3K | 0.00% | −23,623−61.4% | Reduced |
| Sherbrooke Park Advisers LLC | 14,438 | $146.8K | 0.07% | −3,041−17.4% | Reduced |
| Voya Investment Management LLC | 14,277 | $145.2K | 0.00% | −32,819−69.7% | Reduced |
| State Board of Administration of Florida Retirement System | 13,670 | $139.0K | 0.00% | −45,788−77.0% | Reduced |
| Tower Research Capital LLC (TRC) | 13,290 | $135.2K | 0.00% | +3,132+30.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 13,148 | $133.7K | 0.00% | 00.0% | Unchanged |
| Cerity Partners LLC | 12,766 | $129.8K | 0.00% | +12,766 | New |
| Corton Capital Inc. | 12,720 | $129.4K | 0.32% | +652+5.4% | Added |
| Royce & Associates LP | 12,226 | $124.3K | 0.00% | +12,226 | New |
| Schroder Investment Management Group | 12,127 | $123.2K | 0.00% | +12,127 | New |
| Mirabella Financial Services LLP | 11,800 | $120.0K | 0.01% | +11,800 | New |
| CWM, LLC | 11,305 | $115.0K | 0.00% | +2,286+25.3% | Added |
| Quantinno Capital Management LP | 10,635 | $108.2K | 0.00% | +10,635 | New |
| Gamco Investors, Inc. Et Al | 10,000 | $101.7K | 0.00% | +10,000 | New |
| PenderFund Capital Management Ltd. | 9,100 | $92.5K | 0.02% | +9,100 | New |
| Longfellow Investment Management Co LLC | 7,384 | $75.1K | 0.02% | +7,384 | New |
| Russell Investments Group, Ltd. | 6,379 | $64.9K | 0.00% | −59,210−90.3% | Reduced |
| Ameritas Investment Partners, Inc. | 6,369 | $64.8K | 0.00% | −1,414−18.2% | Reduced |
| Johnson Financial Group, Inc. | 5,904 | $60.0K | 0.00% | +5,904 | New |
| FMR LLC | 4,943 | $50.3K | 0.00% | +379+8.3% | Added |
| FNY Investment Advisers, LLC | 5,000 | $50.0K | 0.02% | +5,000 | New |
| Sterling Capital Management LLC | 4,543 | $46.2K | 0.00% | +2,796+160.0% | Added |
| State of Alaska, Department of Revenue | 4,436 | $45.0K | 0.00% | +4,436 | New |
| The PNC Financial Services Group, Inc. | 3,726 | $37.9K | 0.00% | +1,535+70.1% | Added |
| Amalgamated Bank | 2,519 | $26.0K | 0.00% | 00.0% | Unchanged |
| NBC Securities, Inc. | 1,854 | $18.9K | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 1,412 | $14.4K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,402 | $14.3K | 0.00% | +59+4.4% | Added |
| Umb Bank N A | 1,177 | $12.0K | 0.00% | −39−3.2% | Reduced |
| Wealthspire Advisors, LLC | 1,000 | $10.2K | 0.00% | +1,000 | New |
| GAMMA Investing LLC | 922 | $9.38K | 0.00% | −41−4.3% | Reduced |
| Huntington National Bank | 862 | $8.77K | 0.00% | −71−7.6% | Reduced |
| SRS Capital Advisors, Inc. | 621 | $6.32K | 0.00% | +621 | New |
| Farther Finance Advisors, LLC | 581 | $5.91K | 0.00% | +20+3.6% | Added |
| Oxford Asset Management LLP | 457 | $4.65K | 0.00% | +457 | New |
| Essential Partners LLC | 427 | $4.34K | 0.00% | +422+8,440.0% | Added |
| EverSource Wealth Advisors, LLC | 398 | $4.05K | 0.00% | −628−61.2% | Reduced |
| Advisor Group Holdings, Inc. | 384 | $3.79K | 0.00% | −94−19.7% | Reduced |
| Allworth Financial LP | 342 | $3.48K | 0.00% | +136+66.0% | Added |
| Rothschild Investment LLC | 338 | $3.44K | 0.00% | +108+47.0% | Added |
| IFP Advisors, Inc | 319 | $3.24K | 0.00% | +216+209.7% | Added |
| Covestor Ltd | 297 | $3.00K | 0.00% | −22−6.9% | Reduced |
| Clearstead Advisors, LLC | 287 | $2.92K | 0.00% | +81+39.3% | Added |
| Optiver Holding B.V. | 256 | $2.60K | 0.00% | +256 | New |
| Parallel Advisors, LLC | 183 | $1.86K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 171 | $1.74K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 137 | $1.40K | 0.00% | +137 | New |
| SBI Securities Co., Ltd. | 69 | $702 | 0.00% | −16−18.8% | Reduced |
| Parkside Financial Bank & Trust | 65 | $662 | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 47 | $478 | 0.00% | +47 | New |
| Fifth Third Bancorp | 27 | $275 | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 27 | $275 | 0.00% | +27 | New |
| Rockefeller Capital Management L.P. | 27 | $275 | 0.00% | +27 | New |
| US Bancorp | 23 | $234 | 0.00% | −22,135−99.9% | Reduced |
| Smartleaf Asset Management LLC | 18 | $182 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 14 | $143 | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 14 | $142 | 0.00% | 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 |