Integral Ad Science Holding Corp.

IASDelisted Dec 23, 2025

Industry: Services-Computer Programming, Data Processing, Etc.
SEC CIK: 0001842718

SEC filings (opens in a new tab)

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.

Q2 2024 vs. Q1 2024

How the institutions holding Integral Ad Science Holding Corp. changed between Q1 2024 and Q2 2024.

All holders in Q2 2024 All holders in Q1 2024

13F holders of IAS: Q1 2024 compared with Q2 2024
Measure	Q1 2024	Of which not filed for Q2 2024	Q2 2024	Change
Holders	166	3	156	−7
Shares	151.2M	133.7K	156.6M	+5.51M (+3.6%)
Value	$1.51B	$1.33M	$1.52B	+$15.6M (+1.0%)

3 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (37)

Institutions that held Integral Ad Science Holding Corp. at the end of Q2 2024 but not at the end of Q1 2024.

Institutions new to IAS in Q2 2024
Institution	Shares	Value	% of portfolio
Ararat Capital Management, LP	1,748,084	$17.0M	5.21%
Alyeska Investment Group, L.P.	500,000	$4.86M	0.03%
Healthcare of Ontario Pension Plan Trust Fund	486,000	$4.72M	0.01%
Invenomic Capital Management LP	371,821	$3.61M	0.19%
Horrell Capital Management, Inc.	250,000	$2.43M	0.70%
Circumference Group LLC	250,000	$2.43M	2.60%
HAP Trading, LLC	247,919	$2.41M	1.05%
UBS Oconnor LLC	142,500	$1.39M	0.04%
Polar Asset Management Partners Inc.	109,300	$1.06M	0.03%
Bayesian Capital Management, LP	106,800	$1.04M	0.12%
Clearline Capital LP	94,223	$915.8K	0.08%
Landscape Capital Management, L.L.C.	84,477	$821.1K	0.07%
Twinbeech Capital LP	78,349	$761.6K	0.01%
Balyasny Asset Management LLC	76,195	$740.6K	0.00%
Walleye Capital LLC	44,439	$431.9K	0.00%
Alpha DNA Investment Management LLC	42,274	$410.9K	0.23%
Y-Intercept (Hong Kong) Ltd	40,938	$397.9K	0.02%
SG Americas Securities, LLC	40,323	$392.0K	0.00%
Corebridge Financial, Inc.	38,878	$377.9K	0.00%
Mirae Asset Global ETFs Holdings Ltd.	34,167	$332.1K	0.00%
Versor Investments LP	27,000	$262.4K	0.05%
Engineers Gate Manager LP	25,817	$250.9K	0.01%
Federated Hermes, Inc.	22,500	$218.7K	0.00%
Entropy Technologies, LP	16,733	$162.6K	0.02%
Bridgefront Capital, LLC	16,074	$156.2K	0.07%
Seven Eight Capital, LP	15,694	$152.5K	0.02%
State Board of Administration of Florida Retirement System	13,670	$132.9K	0.00%
Edgestream Partners, L.P.	12,849	$124.9K	0.01%
XTX Topco Ltd	11,616	$112.9K	0.01%
Centiva Capital, LP	10,162	$98.8K	0.00%
Coppell Advisory Solutions LLC	1,894	$18.4K	0.00%
Quarry LP	1,820	$17.7K	0.01%
Macroview Investment Management LLC	780	$7.58K	0.01%
Versant Capital Management, Inc	186	$1.81K	0.00%
Allspring Global Investments Holdings, LLC	110	$1.07K	0.00%
Northwestern Mutual Wealth Management Co	100	$972	0.00%
Smartleaf Asset Management LLC	99	$952	0.00%

Sold out (44)

Institutions that held Integral Ad Science Holding Corp. at the end of Q1 2024 and filed for Q2 2024 without it.

Institutions that sold out of IAS in Q2 2024
Institution	Shares, Q1 2024	Value, Q1 2024
Aperture Investors, LLC	1,590,456	$15.9M
British Columbia Investment Management Corp	617,500	$6.16M
Concentric Capital Strategies, LP	434,348	$4.33M
Scalar Gauge Management, LLC	362,769	$3.62M
Ghisallo Capital Management LLC	250,000	$2.49M
Allianz Asset Management GmbH	235,334	$2.35M
Two Sigma Investments, LP	231,734	$2.31M
Trexquant Investment LP	180,987	$1.80M
Dark Forest Capital Management LP	177,858	$1.77M
Marshall Wace, LLP	158,308	$1.58M
J. Goldman & Co LP	156,954	$1.56M
ExodusPoint Capital Management, LP	154,080	$1.54M
First Trust Advisors LP	129,408	$1.29M
Kodai Capital Management LP	64,456	$642.6K
Graham Capital Management, L.P.	50,862	$507.1K
Senvest Management, LLC	46,840	$467.0K
Quantbot Technologies LP	42,826	$427.0K
Mirae Asset Global Investments Co., Ltd.	30,568	$410.5K
Gsa Capital Partners LLP	39,281	$392.0K
Prelude Capital Management, LLC	38,124	$380.1K
Pearl River Capital, LLC	35,310	$352.0K
American International Group, Inc.	33,228	$331.3K
Capstone Investment Advisors, LLC	32,713	$326.1K
Sherbrooke Park Advisers LLC	31,047	$309.5K
Dynamic Technology Lab Private Ltd	30,832	$308.0K
LPL Financial LLC	29,138	$290.5K
Keebeck Alpha, LP	27,807	$277.2K
Point72 Asset Management, L.P.	26,500	$264.2K
Teacher Retirement System of Texas	22,143	$221.0K
Fox Run Management, L.L.C.	16,926	$168.8K
M&T Bank Corp	13,440	$133.6K
Vontobel Holding Ltd.	12,200	$121.6K
ProShare Advisors LLC	12,113	$120.8K
Petrus Trust Company, LTA	11,321	$112.9K
Hantz Financial Services, Inc.	6,950	$69.0K
DekaBank Deutsche Girozentrale	5,161	$51.0K
Metropolitan Life Insurance Co	3,636	$36.3K
Headlands Technologies LLC	1,897	$18.9K
Private Trust Co NA	496	$4.95K
Fifth Third Bancorp	340	$3.39K
Global Retirement Partners, LLC	210	$2.09K
Fortitude Family Office, LLC	202	$2.01K
CIBC Private Wealth Group, LLC	94	$913
Nelson, Van Denburg & Campbell Wealth Management Group, LLC	9	$89

Not filed for Q2 2024 yet (3)

Institutions that held Integral Ad Science Holding Corp. at the end of Q1 2024 and haven't filed a 13F for Q2 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IAS in Q1 2024 that haven't filed for Q2 2024
Institution	Shares, Q1 2024	Value, Q1 2024
Credit Suisse AG	89,809	$895.4K
Cipher Capital LP	24,438	$243.6K
Richelieu Gestion PLC	19,501	$194.0K