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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.

Q4 2025 vs. Q3 2025

How the institutions holding Integral Ad Science Holding Corp. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of IAS: Q3 2025 compared with Q4 2025
MeasureQ3 2025Of which not filed for Q4 2025Q4 2025Change
Holders17112−168
Shares162.3M12.7K330−162.3M (−100.0%)
Value$1.65B$129.4K$3.41K−$1.65B (−100.0%)

1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (0)

Institutions that held Integral Ad Science Holding Corp. at the end of Q4 2025 but not at the end of Q3 2025.

None.

Sold out (168)

Institutions that held Integral Ad Science Holding Corp. at the end of Q3 2025 and filed for Q4 2025 without it.

Showing the largest 100 of 168 by value.

Institutions that sold out of IAS in Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Vista Equity Partners Management, LLC65,010,001$661.2M
Atlas Venture Advisors, Inc.22,722,770$231.1M
Vanguard Group Inc9,043,380$92.0M
Sunriver Management LLC7,120,157$72.4M
BlackRock, Inc.6,757,261$68.7M
Dimensional Fund Advisors LP5,949,164$60.5M
P2 Capital Partners, LLC4,830,805$49.1M
Omni Event Management Ltd3,000,000$30.5M
Highland Capital Management Fund Advisors, L.P.2,683,061$27.3M
Glazer Capital, LLC2,096,797$21.3M
Vivaldi Asset Management, LLC2,088,796$21.2M
Soros Fund Management LLCSuperinvestorSoros Fund Management1,990,000$20.2M
Geode Capital Management, LLC1,964,293$20.0M
Verition Fund Management LLC1,948,970$19.8M
State Street Corp1,643,118$16.7M
Bank of America Corp1,394,507$14.2M
Nuveen, LLC1,369,706$13.9M
Balyasny Asset Management LLC1,166,530$11.9M
Water Island Capital LLC1,071,160$10.9M
Polar Asset Management Partners Inc.1,000,000$10.2M
CNH Partners LLC991,705$10.1M
Northern Trust Corp805,536$8.19M
Dana Investment Advisors, Inc.793,740$8.07M
Goldman Sachs Group Inc767,555$7.81M
Ararat Capital Management, LP668,407$6.80M
Alpine Associates Management Inc.641,140$6.52M
Charles Schwab Investment Management Inc637,495$6.48M
Pacer Advisors, Inc.582,510$5.92M
UBS Group AG574,116$5.84M
CenterBook Partners LP536,066$5.45M
Qube Research & Technologies Ltd521,420$5.30M
Morgan Stanley491,740$5.00M
Barclays PLC477,908$4.86M
Monimus Capital Management, LP464,110$4.72M
Circumference Group LLC450,000$4.58M
Clearline Capital LP419,221$4.26M
Gabelli Funds LLC383,797$3.90M
Susquehanna International Group, LLP375,113$3.81M
Gabelli & Co Investment Advisers, Inc.350,600$3.57M
Standard Life Aberdeen plc335,915$3.42M
Millennium Management LLC333,892$3.40M
Bank of New York Mellon Corp297,019$3.02M
SG Americas Securities, LLC273,467$2.78M
Carmignac Gestion266,001$2.71M
Alliancebernstein L.P.257,920$2.62M
JPMorgan Chase & Co244,469$2.49M
Rice Hall James & Associates, LLC199,103$2.02M
American Century Companies Inc173,871$1.77M
Jane Street Group, LLC160,128$1.63M
Invesco Ltd.159,611$1.62M
Swiss National Bank158,700$1.61M
AQR Capital Management LLC151,888$1.54M
Victory Capital Management Inc147,573$1.50M
First Trust Advisors LP146,573$1.49M
Susquehanna Portfolio Strategies, LLC114,124$1.16M
Rhumbline Advisers107,551$1.09M
Janney Montgomery Scott LLC101,960$1.04M
Quinn Opportunity Partners LLC100,000$1.02M
UBS Asset Management Americas Inc96,703$983.5K
Ameriprise Financial Inc89,214$907.3K
Legal & General Group Plc88,135$896.3K
OP Asset Management Ltd83,815$852.4K
Clune & Associates, Ltd.78,540$798.8K
HSBC Holdings PLC78,117$794.8K
Envestnet Asset Management Inc75,705$769.9K
California State Teachers Retirement System74,877$761.5K
Deutsche Bank AG72,477$737.1K
Canada Pension Plan Investment Board72,000$732.2K
Morningstar Investment Management LLC71,712$729.0K
Wells Fargo & Company70,410$716.1K
State of Wisconsin Investment Board69,672$708.6K
Danske Bank A/S66,810$679.5K
Grizzlyrock Capital, LLC61,250$622.9K
CastleKnight Management LP60,300$613.3K
Two Sigma Investments, LP59,664$606.8K
Principal Financial Group Inc54,443$553.7K
Alps Advisors Inc54,280$552.0K
Fifth Lane Capital, LP50,000$508.5K
LSV Asset Management48,500$493.0K
Walleye Capital LLC48,127$489.5K
Omers Administration Corp47,800$486.1K
Ronald Blue Trust, Inc.45,461$462.3K
MetLife Investment Management44,048$448.0K
Wolverine Asset Management LLC43,393$441.3K
Virtu Financial LLC42,274$430.0K
ProShare Advisors LLC40,786$414.8K
Quest Partners LLC40,513$412.0K
Manufacturers Life Insurance Company, The40,047$407.3K
Price T Rowe Associates Inc39,935$407.0K
Prelude Capital Management, LLC39,985$406.6K
Jain Global LLC36,500$371.2K
Mirae Asset Global ETFs Holdings Ltd.35,795$364.0K
Intech Investment Management LLC35,560$361.6K
Teacher Retirement System of Texas34,919$355.1K
Janus Henderson Group PLC34,000$345.9K
Royal Bank of Canada33,858$344.0K
LPL Financial LLC30,135$306.5K
SEI Investments Co29,344$298.4K
BNP Paribas Arbitrage, SA27,716$281.9K
Commonwealth of Pennsylvania Public School Empls Retrmt Sys25,000$254.3K

Not filed for Q4 2025 yet (1)

Institutions that held Integral Ad Science Holding Corp. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IAS in Q3 2025 that haven't filed for Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Corton Capital Inc.12,720$129.4K