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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.

Q1 2025 vs. Q4 2024

How the institutions holding Integral Ad Science Holding Corp. changed between Q4 2024 and Q1 2025.

All holders in Q1 2025All holders in Q4 2024

13F holders of IAS: Q4 2024 compared with Q1 2025
MeasureQ4 2024Of which not filed for Q1 2025Q1 2025Change
Holders1651187+23
Shares157.1M1.92M159.0M+3.86M (+2.5%)
Value$1.64B$20.1M$1.28B−$338.1M (−20.9%)

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (50)

Institutions that held Integral Ad Science Holding Corp. at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to IAS in Q1 2025
InstitutionSharesValue% of portfolio
Corvex Management LP2,618,000$21.1M0.82%
Nuveen, LLC1,352,028$10.9M0.00%
Cubist Systematic Strategies, LLC923,168$7.44M0.10%
ExodusPoint Capital Management, LP246,590$1.99M0.03%
Jane Street Group, LLC246,429$1.99M0.00%
Jefferies Financial Group Inc.225,000$1.81M0.03%
Inflection Point Investments LLP156,899$1.26M2.75%
Verition Fund Management LLC152,563$1.23M0.01%
Marshall Wace, LLP115,127$927.9K0.00%
Magnetar Financial LLC107,327$865.1K0.01%
Dana Investment Advisors, Inc.106,944$862.0K0.03%
Jump Financial, LLC100,070$806.6K0.01%
Washington Harbour Partners LP97,300$784.2K2.24%
Semanteon Capital Management, LP94,662$763.0K0.41%
American Century Companies Inc88,256$711.3K0.00%
OP Asset Management Ltd81,651$658.1K0.01%
Fox Run Management, L.L.C.79,423$640.1K0.10%
Point72 Asset Management, L.P.76,155$613.8K0.00%
Gsa Capital Partners LLP74,787$603.0K0.05%
Bayesian Capital Management, LP58,100$468.3K0.08%
Susquehanna Fundamental Investments, LLC58,002$467.5K0.01%
Bank of Montreal51,760$417.2K0.00%
Quantbot Technologies LP47,687$384.4K0.01%
Engineers Gate Manager LP41,605$335.3K0.01%
Alps Advisors Inc39,190$315.9K0.00%
Pitcairn Co35,902$289.4K0.02%
Caxton Associates LLP35,029$282.3K0.01%
EP Wealth Advisors, LLC27,681$223.1K0.00%
Ronald Blue Trust, Inc.27,485$221.5K0.00%
HSBC Holdings PLC20,354$165.1K0.00%
Diametric Capital, LP17,467$140.8K0.17%
CIBC World Markets Corp16,196$130.5K0.00%
Aquatic Capital Management LLC15,720$126.7K0.00%
Corton Capital Inc.15,147$122.1K0.40%
Zuckerman Investment Group, LLC15,000$120.9K0.01%
Point72 (DIFC) Ltd14,447$116.4K0.01%
Teacher Retirement System of Texas11,886$95.8K0.00%
Quest Partners LLC11,487$92.6K0.01%
Virtu Financial LLC10,733$87.0K0.00%
DekaBank Deutsche Girozentrale5,161$51.0K0.00%
NBC Securities, Inc.1,854$14.0K0.00%
Umb Bank N A1,216$9.80K0.00%
Point72 Hong Kong Ltd795$6.41K0.00%
Aster Capital Management (DIFC) Ltd470$4.94K0.00%
Quarry LP580$4.67K0.00%
Coldstream Capital Management Inc532$4.29K0.00%
First Horizon Advisors, Inc.130$1.05K0.00%
Asset Dedication, LLC50$4030.00%
Skopos Labs, Inc.34$2750.00%
HFM Investment Advisors, LLC1$90.00%

Sold out (27)

Institutions that held Integral Ad Science Holding Corp. at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of IAS in Q1 2025
InstitutionShares, Q4 2024Value, Q4 2024
Alyeska Investment Group, L.P.3,979,205$41.5M
Clearline Capital LP378,252$3.95M
Renaissance Group LLC208,963$2.18M
Herald Investment Management Ltd200,000$2.09M
Horrell Capital Management, Inc.190,000$1.98M
Vestcor Inc150,000$1.57M
Boothbay Fund Management, LLC117,707$1.23M
Algert Global LLC82,779$864.2K
Militia Capital Partners, LP78,000$814.3K
Eisler Capital Management Ltd.70,000$740.3K
Nine Masts Capital Ltd64,291$671.2K
Cantor Fitzgerald, L. P.61,000$636.8K
Highland Capital Management Fund Advisors, L.P.53,661$560.2K
Colony Group, LLC40,172$419.4K
LMR Partners LLP38,079$397.5K
EntryPoint Capital, LLC37,083$387.1K
Thrivent Financial for Lutherans31,417$328.0K
Harvest Management LLC30,000$313.2K
Oppenheimer & Co Inc28,040$292.7K
Stoneridge Investment Partners LLC27,808$290.0K
Osterweis Capital Management Inc14,285$149.1K
PEAK6 LLC14,012$146.3K
ClearAlpha Technologies LP13,670$142.7K
American Trust11,559$120.7K
Creative Planning11,059$115.5K
Two Sigma Advisers, LP10,400$108.6K
Proequities, Inc.2,525$25.4K

Not filed for Q1 2025 yet (1)

Institutions that held Integral Ad Science Holding Corp. at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IAS in Q4 2024 that haven't filed for Q1 2025
InstitutionShares, Q4 2024Value, Q4 2024
Nuveen Asset Management, LLC1,920,523$20.1M