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 |
|---|---|---|---|---|---|
| Vista Equity Partners Management, LLC | 65,010,001 | $524.0M | 48.74% | 00.0% | Unchanged |
| Atlas Venture Advisors, Inc. | 22,722,770 | $183.1M | 50.04% | 00.0% | Unchanged |
| Vanguard Group Inc | 9,090,229 | $73.3M | 0.00% | +41,683+0.5% | Added |
| Sunriver Management LLC | 8,166,774 | $65.8M | 8.12% | +875,740+12.0% | Added |
| BlackRock, Inc. | 6,004,070 | $48.4M | 0.00% | −35,403−0.6% | Reduced |
| P2 Capital Partners, LLC | 4,810,000 | $38.8M | 7.53% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 4,439,747 | $35.8M | 0.01% | +649,751+17.1% | Added |
| Rubric Capital Management LP | 3,166,949 | $25.5M | 0.46% | +1,193,079+60.4% | Added |
| Corvex Management LP | 2,618,000 | $21.1M | 0.82% | +2,618,000 | New |
| Clearbridge Investments, LLC | 2,510,516 | $20.2M | 0.02% | −218,904−8.0% | Reduced |
| Standard Life Aberdeen plc | 1,994,980 | $16.1M | 0.03% | +224,153+12.7% | Added |
| Geode Capital Management, LLC | 1,888,882 | $15.2M | 0.00% | +40,144+2.2% | Added |
| TimesSquare Capital Management, LLC | 1,719,863 | $13.9M | 0.22% | −280,310−14.0% | Reduced |
| Invenomic Capital Management LP | 1,649,983 | $13.3M | 0.68% | +754,922+84.3% | Added |
| Ararat Capital Management, LP | 1,589,834 | $12.8M | 6.27% | −692,078−30.3% | Reduced |
| State Street Corp | 1,562,732 | $12.6M | 0.00% | −27,325−1.7% | Reduced |
| Jacobs Levy Equity Management, Inc | 1,378,259 | $11.1M | 0.04% | −42,978−3.0% | Reduced |
| Nuveen, LLC | 1,352,028 | $10.9M | 0.00% | +1,352,028 | New |
| Alta Fox Capital Management, LLC | 1,214,053 | $9.79M | 3.88% | +1,208,253+20,831.9% | Added |
| Frontier Capital Management Co LLC | 967,456 | $7.80M | 0.09% | −30,055−3.0% | Reduced |
| Cubist Systematic Strategies, LLC | 923,168 | $7.44M | 0.10% | +923,168 | New |
| Northern Trust Corp | 689,174 | $5.55M | 0.00% | +11,970+1.8% | Added |
| CenterBook Partners LP | 651,880 | $5.25M | 0.33% | −367,164−36.0% | Reduced |
| Charles Schwab Investment Management Inc | 588,895 | $4.75M | 0.00% | −14,953−2.5% | Reduced |
| Morgan Stanley | 585,569 | $4.72M | 0.00% | +7,837+1.4% | Added |
| Bank of America Corp | 532,437 | $4.29M | 0.00% | +193,070+56.9% | Added |
| Deutsche Bank AG | 525,696 | $4.24M | 0.00% | −5,968−1.1% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 496,400 | $4.00M | 0.01% | +95,400+23.8% | Added |
| Monimus Capital Management, LP | 487,371 | $3.93M | 3.33% | +293,889+151.9% | Added |
| Renaissance Technologies LLC | 440,000 | $3.55M | 0.01% | +232,400+111.9% | Added |
| Millennium Management LLC | 406,770 | $3.28M | 0.00% | +342,646+534.3% | Added |
| Goldman Sachs Group Inc | 389,093 | $3.14M | 0.00% | −49,498−11.3% | Reduced |
| Qube Research & Technologies Ltd | 310,032 | $2.50M | 0.00% | +202,087+187.2% | Added |
| Bank of New York Mellon Corp | 291,079 | $2.35M | 0.00% | +39,988+15.9% | Added |
| Janus Henderson Group PLC | 241,285 | $1.99M | 0.00% | −1,274−0.5% | Reduced |
| ExodusPoint Capital Management, LP | 246,590 | $1.99M | 0.03% | +246,590 | New |
| Jane Street Group, LLC | 246,429 | $1.99M | 0.00% | +246,429 | New |
| Rice Hall James & Associates, LLC | 235,212 | $1.90M | 0.11% | −78,917−25.1% | Reduced |
| PDT Partners, LLC | 228,977 | $1.85M | 0.13% | +26,945+13.3% | Added |
| Jefferies Financial Group Inc. | 225,000 | $1.81M | 0.03% | +225,000 | New |
| Circumference Group LLC | 210,000 | $1.69M | 2.10% | +20,000+10.5% | Added |
| one8zero8, LLC | 187,050 | $1.51M | 0.36% | +24,000+14.7% | Added |
| Susquehanna International Group, LLP | 173,365 | $1.40M | 0.00% | +85,399+97.1% | Added |
| Atom Investors LP | 167,575 | $1.35M | 0.17% | −149,969−47.2% | Reduced |
| Quinn Opportunity Partners LLC | 165,000 | $1.33M | 0.09% | +85,000+106.3% | Added |
| Swiss National Bank | 158,700 | $1.28M | 0.00% | 00.0% | Unchanged |
| Inflection Point Investments LLP | 156,899 | $1.26M | 2.75% | +156,899 | New |
| UBS Group AG | 155,330 | $1.25M | 0.00% | −186,748−54.6% | Reduced |
| Verition Fund Management LLC | 152,563 | $1.23M | 0.01% | +152,563 | New |
| Citadel Advisors LLC | 136,883 | $1.10M | 0.00% | −569,460−80.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 134,922 | $1.09M | 0.01% | −51,430−27.6% | Reduced |
| Barclays PLC | 134,386 | $1.08M | 0.00% | −7,751−5.5% | Reduced |
| Essex Investment Management Co LLC | 128,408 | $1.03M | 0.22% | −893−0.7% | Reduced |
| UBS Asset Management Americas Inc | 119,700 | $964.8K | 0.00% | −35,310−22.8% | Reduced |
| First Trust Advisors LP | 116,259 | $937.0K | 0.00% | −55,119−32.2% | Reduced |
| Marshall Wace, LLP | 115,127 | $927.9K | 0.00% | +115,127 | New |
| Magnetar Financial LLC | 107,327 | $865.1K | 0.01% | +107,327 | New |
| Dana Investment Advisors, Inc. | 106,944 | $862.0K | 0.03% | +106,944 | New |
| Rhumbline Advisers | 101,663 | $819.4K | 0.00% | −5,787−5.4% | Reduced |
| Jump Financial, LLC | 100,070 | $806.6K | 0.01% | +100,070 | New |
| Invesco Ltd. | 99,932 | $805.5K | 0.00% | +49,388+97.7% | Added |
| Tejara Capital Ltd | 99,854 | $804.8K | 0.40% | +39,854+66.4% | Added |
| Washington Harbour Partners LP | 97,300 | $784.2K | 2.24% | +97,300 | New |
| Ameriprise Financial Inc | 96,829 | $780.4K | 0.00% | −1,005,470−91.2% | Reduced |
| Semanteon Capital Management, LP | 94,662 | $763.0K | 0.41% | +94,662 | New |
| Russell Investments Group, Ltd. | 92,428 | $745.0K | 0.00% | −1,715−1.8% | Reduced |
| Legal & General Group Plc | 88,747 | $715.3K | 0.00% | +4,890+5.8% | Added |
| American Century Companies Inc | 88,256 | $711.3K | 0.00% | +88,256 | New |
| Envestnet Asset Management Inc | 84,471 | $680.8K | 0.00% | +52,664+165.6% | Added |
| Intech Investment Management LLC | 83,988 | $676.9K | 0.01% | +34,544+69.9% | Added |
| B. Riley Asset Management, LLC | 83,930 | $676.5K | 1.79% | −145,207−63.4% | Reduced |
| OP Asset Management Ltd | 81,651 | $658.1K | 0.01% | +81,651 | New |
| Fox Run Management, L.L.C. | 79,423 | $640.1K | 0.10% | +79,423 | New |
| Alliancebernstein L.P. | 76,580 | $617.2K | 0.00% | 00.0% | Unchanged |
| Jennison Associates LLC | 76,373 | $615.6K | 0.00% | +12,835+20.2% | Added |
| Point72 Asset Management, L.P. | 76,155 | $613.8K | 0.00% | +76,155 | New |
| California State Teachers Retirement System | 74,874 | $603.5K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 74,787 | $603.0K | 0.05% | +74,787 | New |
| Clune & Associates, Ltd. | 74,404 | $599.7K | 0.18% | −24,920−25.1% | Reduced |
| Canada Pension Plan Investment Board | 72,000 | $580.3K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 68,173 | $549.5K | 0.00% | −9,141−11.8% | Reduced |
| JPMorgan Chase & Co | 67,879 | $547.1K | 0.00% | −198,448−74.5% | Reduced |
| Wells Fargo & Company | 64,406 | $519.1K | 0.00% | −20,683−24.3% | Reduced |
| Versor Investments LP | 63,600 | $512.6K | 0.08% | +50,200+374.6% | Added |
| Citigroup Inc | 61,803 | $498.1K | 0.00% | −4,723−7.1% | Reduced |
| Bayesian Capital Management, LP | 58,100 | $468.3K | 0.08% | +58,100 | New |
| Susquehanna Fundamental Investments, LLC | 58,002 | $467.5K | 0.01% | +58,002 | New |
| Royal Bank of Canada | 55,941 | $451.0K | 0.00% | +38,439+219.6% | Added |
| Bank of Montreal | 51,760 | $417.2K | 0.00% | +51,760 | New |
| Repertoire Partners LP | 49,301 | $397.4K | 2.58% | −235,406−82.7% | Reduced |
| Quantbot Technologies LP | 47,687 | $384.4K | 0.01% | +47,687 | New |
| Voya Investment Management LLC | 47,281 | $381.1K | 0.00% | +8,761+22.7% | Added |
| State Board of Administration of Florida Retirement System | 45,324 | $365.3K | 0.00% | −37,652−45.4% | Reduced |
| MetLife Investment Management | 44,048 | $355.0K | 0.00% | −873−1.9% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 43,326 | $349.2K | 0.00% | +1,807+4.4% | Added |
| Engineers Gate Manager LP | 41,605 | $335.3K | 0.01% | +41,605 | New |
| AQR Capital Management LLC | 40,689 | $328.0K | 0.00% | −12,756−23.9% | Reduced |
| Manufacturers Life Insurance Company, The | 40,483 | $326.3K | 0.00% | +3,850+10.5% | Added |
| Alps Advisors Inc | 39,190 | $315.9K | 0.00% | +39,190 | New |
| Legato Capital Management LLC | 38,239 | $308.2K | 0.04% | −486−1.3% | Reduced |