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, Q1 2025
Institutional positions in Integral Ad Science Holding Corp. as of Mar 31, 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
- Institutional holders
- 187
- +23 vs. Q4 2024
- Shares held
- 159.0M
- +3.86M (+2.5%) vs. Q4 2024
- Total value
- $1.28B
- −$338.1M (−20.9%) vs. Q4 2024
- New holders
- 50
- 54 more added
- Sold out
- 27
- 61 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Integral Ad Science Holding Corp.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Susquehanna Fundamental Investments, LLC | 58,002 | $467.5K | 0.01% | +58,002 | New |
| Bayesian Capital Management, LP | 58,100 | $468.3K | 0.08% | +58,100 | New |
| Citigroup Inc | 61,803 | $498.1K | 0.00% | −4,723−7.1% | Reduced |
| Versor Investments LP | 63,600 | $512.6K | 0.08% | +50,200+374.6% | Added |
| Wells Fargo & Company | 64,406 | $519.1K | 0.00% | −20,683−24.3% | Reduced |
| JPMorgan Chase & Co | 67,879 | $547.1K | 0.00% | −198,448−74.5% | Reduced |
| Raymond James Financial Inc | 68,173 | $549.5K | 0.00% | −9,141−11.8% | Reduced |
| Canada Pension Plan Investment Board | 72,000 | $580.3K | 0.00% | 00.0% | Unchanged |
| Clune & Associates, Ltd. | 74,404 | $599.7K | 0.18% | −24,920−25.1% | Reduced |
| Gsa Capital Partners LLP | 74,787 | $603.0K | 0.05% | +74,787 | New |
| California State Teachers Retirement System | 74,874 | $603.5K | 0.00% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 76,155 | $613.8K | 0.00% | +76,155 | New |
| Jennison Associates LLC | 76,373 | $615.6K | 0.00% | +12,835+20.2% | Added |
| Alliancebernstein L.P. | 76,580 | $617.2K | 0.00% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 79,423 | $640.1K | 0.10% | +79,423 | New |
| OP Asset Management Ltd | 81,651 | $658.1K | 0.01% | +81,651 | New |
| B. Riley Asset Management, LLC | 83,930 | $676.5K | 1.79% | −145,207−63.4% | Reduced |
| Intech Investment Management LLC | 83,988 | $676.9K | 0.01% | +34,544+69.9% | Added |
| Envestnet Asset Management Inc | 84,471 | $680.8K | 0.00% | +52,664+165.6% | Added |
| American Century Companies Inc | 88,256 | $711.3K | 0.00% | +88,256 | New |
| Legal & General Group Plc | 88,747 | $715.3K | 0.00% | +4,890+5.8% | Added |
| Russell Investments Group, Ltd. | 92,428 | $745.0K | 0.00% | −1,715−1.8% | Reduced |
| Semanteon Capital Management, LP | 94,662 | $763.0K | 0.41% | +94,662 | New |
| Ameriprise Financial Inc | 96,829 | $780.4K | 0.00% | −1,005,470−91.2% | Reduced |
| Washington Harbour Partners LP | 97,300 | $784.2K | 2.24% | +97,300 | New |
| Tejara Capital Ltd | 99,854 | $804.8K | 0.40% | +39,854+66.4% | Added |
| Invesco Ltd. | 99,932 | $805.5K | 0.00% | +49,388+97.7% | Added |
| Jump Financial, LLC | 100,070 | $806.6K | 0.01% | +100,070 | New |
| Rhumbline Advisers | 101,663 | $819.4K | 0.00% | −5,787−5.4% | Reduced |
| Dana Investment Advisors, Inc. | 106,944 | $862.0K | 0.03% | +106,944 | New |
| Magnetar Financial LLC | 107,327 | $865.1K | 0.01% | +107,327 | New |
| Marshall Wace, LLP | 115,127 | $927.9K | 0.00% | +115,127 | New |
| First Trust Advisors LP | 116,259 | $937.0K | 0.00% | −55,119−32.2% | Reduced |
| UBS Asset Management Americas Inc | 119,700 | $964.8K | 0.00% | −35,310−22.8% | Reduced |
| Essex Investment Management Co LLC | 128,408 | $1.03M | 0.22% | −893−0.7% | Reduced |
| Barclays PLC | 134,386 | $1.08M | 0.00% | −7,751−5.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 134,922 | $1.09M | 0.01% | −51,430−27.6% | Reduced |
| Citadel Advisors LLC | 136,883 | $1.10M | 0.00% | −569,460−80.6% | Reduced |
| Verition Fund Management LLC | 152,563 | $1.23M | 0.01% | +152,563 | New |
| UBS Group AG | 155,330 | $1.25M | 0.00% | −186,748−54.6% | Reduced |
| Inflection Point Investments LLP | 156,899 | $1.26M | 2.75% | +156,899 | New |
| Swiss National Bank | 158,700 | $1.28M | 0.00% | 00.0% | Unchanged |
| Quinn Opportunity Partners LLC | 165,000 | $1.33M | 0.09% | +85,000+106.3% | Added |
| Atom Investors LP | 167,575 | $1.35M | 0.17% | −149,969−47.2% | Reduced |
| Susquehanna International Group, LLP | 173,365 | $1.40M | 0.00% | +85,399+97.1% | Added |
| one8zero8, LLC | 187,050 | $1.51M | 0.36% | +24,000+14.7% | Added |
| Circumference Group LLC | 210,000 | $1.69M | 2.10% | +20,000+10.5% | Added |
| Jefferies Financial Group Inc. | 225,000 | $1.81M | 0.03% | +225,000 | New |
| PDT Partners, LLC | 228,977 | $1.85M | 0.13% | +26,945+13.3% | Added |
| Rice Hall James & Associates, LLC | 235,212 | $1.90M | 0.11% | −78,917−25.1% | Reduced |
| Jane Street Group, LLC | 246,429 | $1.99M | 0.00% | +246,429 | New |
| ExodusPoint Capital Management, LP | 246,590 | $1.99M | 0.03% | +246,590 | New |
| Janus Henderson Group PLC | 241,285 | $1.99M | 0.00% | −1,274−0.5% | Reduced |
| Bank of New York Mellon Corp | 291,079 | $2.35M | 0.00% | +39,988+15.9% | Added |
| Qube Research & Technologies Ltd | 310,032 | $2.50M | 0.00% | +202,087+187.2% | Added |
| Goldman Sachs Group Inc | 389,093 | $3.14M | 0.00% | −49,498−11.3% | Reduced |
| Millennium Management LLC | 406,770 | $3.28M | 0.00% | +342,646+534.3% | Added |
| Renaissance Technologies LLC | 440,000 | $3.55M | 0.01% | +232,400+111.9% | Added |
| Monimus Capital Management, LP | 487,371 | $3.93M | 3.33% | +293,889+151.9% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 496,400 | $4.00M | 0.01% | +95,400+23.8% | Added |
| Deutsche Bank AG | 525,696 | $4.24M | 0.00% | −5,968−1.1% | Reduced |
| Bank of America Corp | 532,437 | $4.29M | 0.00% | +193,070+56.9% | Added |
| Morgan Stanley | 585,569 | $4.72M | 0.00% | +7,837+1.4% | Added |
| Charles Schwab Investment Management Inc | 588,895 | $4.75M | 0.00% | −14,953−2.5% | Reduced |
| CenterBook Partners LP | 651,880 | $5.25M | 0.33% | −367,164−36.0% | Reduced |
| Northern Trust Corp | 689,174 | $5.55M | 0.00% | +11,970+1.8% | Added |
| Cubist Systematic Strategies, LLC | 923,168 | $7.44M | 0.10% | +923,168 | New |
| Frontier Capital Management Co LLC | 967,456 | $7.80M | 0.09% | −30,055−3.0% | Reduced |
| Alta Fox Capital Management, LLC | 1,214,053 | $9.79M | 3.88% | +1,208,253+20,831.9% | Added |
| Nuveen, LLC | 1,352,028 | $10.9M | 0.00% | +1,352,028 | New |
| Jacobs Levy Equity Management, Inc | 1,378,259 | $11.1M | 0.04% | −42,978−3.0% | Reduced |
| State Street Corp | 1,562,732 | $12.6M | 0.00% | −27,325−1.7% | Reduced |
| Ararat Capital Management, LP | 1,589,834 | $12.8M | 6.27% | −692,078−30.3% | Reduced |
| Invenomic Capital Management LP | 1,649,983 | $13.3M | 0.68% | +754,922+84.3% | Added |
| TimesSquare Capital Management, LLC | 1,719,863 | $13.9M | 0.22% | −280,310−14.0% | Reduced |
| Geode Capital Management, LLC | 1,888,882 | $15.2M | 0.00% | +40,144+2.2% | Added |
| Standard Life Aberdeen plc | 1,994,980 | $16.1M | 0.03% | +224,153+12.7% | Added |
| Clearbridge Investments, LLC | 2,510,516 | $20.2M | 0.02% | −218,904−8.0% | Reduced |
| Corvex Management LP | 2,618,000 | $21.1M | 0.82% | +2,618,000 | New |
| Rubric Capital Management LP | 3,166,949 | $25.5M | 0.46% | +1,193,079+60.4% | Added |
| Dimensional Fund Advisors LP | 4,439,747 | $35.8M | 0.01% | +649,751+17.1% | Added |
| P2 Capital Partners, LLC | 4,810,000 | $38.8M | 7.53% | 00.0% | Unchanged |
| BlackRock, Inc. | 6,004,070 | $48.4M | 0.00% | −35,403−0.6% | Reduced |
| Sunriver Management LLC | 8,166,774 | $65.8M | 8.12% | +875,740+12.0% | Added |
| Vanguard Group Inc | 9,090,229 | $73.3M | 0.00% | +41,683+0.5% | Added |
| Atlas Venture Advisors, Inc. | 22,722,770 | $183.1M | 50.04% | 00.0% | Unchanged |
| Vista Equity Partners Management, LLC | 65,010,001 | $524.0M | 48.74% | 00.0% | Unchanged |
| Proequities, Inc. | 0 | $0 | 0.00% | −2,525−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −3,979,205−100.0% | Sold out |
| Clearline Capital LP | 0 | $0 | 0.00% | −378,252−100.0% | Sold out |
| Renaissance Group LLC | 0 | $0 | 0.00% | −208,963−100.0% | Sold out |
| Herald Investment Management Ltd | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Horrell Capital Management, Inc. | 0 | $0 | 0.00% | −190,000−100.0% | Sold out |
| Vestcor Inc | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −117,707−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −82,779−100.0% | Sold out |
| Militia Capital Partners, LP | 0 | $0 | 0.00% | −78,000−100.0% | Sold out |
| Eisler Capital Management Ltd. | 0 | $0 | 0.00% | −70,000−100.0% | Sold out |
| Nine Masts Capital Ltd | 0 | $0 | 0.00% | −64,291−100.0% | Sold out |
| Cantor Fitzgerald, L. P. | 0 | $0 | 0.00% | −61,000−100.0% | Sold out |