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.

Q1 2023 vs. Q4 2022

How the institutions holding Integral Ad Science Holding Corp. changed between Q4 2022 and Q1 2023.

All holders in Q1 2023 All holders in Q4 2022

13F holders of IAS: Q4 2022 compared with Q1 2023
Measure	Q4 2022	Of which not filed for Q1 2023	Q1 2023	Change
Holders	107	1	116	+10
Shares	148.1M	47.9K	149.9M	+1.84M (+1.2%)
Value	$1.30B	$421.0K	$2.14B	+$837.3M (+64.4%)

1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (23)

Institutions that held Integral Ad Science Holding Corp. at the end of Q1 2023 but not at the end of Q4 2022.

Institutions new to IAS in Q1 2023
Institution	Shares	Value	% of portfolio
Sunriver Management LLC	994,160	$14.2M	2.96%
EVR Research LP	370,000	$5.28M	1.32%
Industrial Alliance Investment Management Inc.	239,920	$3.42M	0.10%
Norges Bank	200,500	$2.86M	0.00%
EAM Investors, LLC	198,637	$2.83M	0.56%
Prudential Financial Inc	190,250	$2.71M	0.00%
G2 Investment Partners Management LLC	185,000	$2.64M	0.76%
Susquehanna International Group, LLP	160,736	$2.29M	0.00%
Lisanti Capital Growth, LLC	155,360	$2.22M	0.31%
First Trust Advisors LP	124,706	$1.78M	0.00%
Arrowstreet Capital, Limited Partnership	120,875	$1.73M	0.00%
Dark Forest Capital Management LP	77,292	$1.10M	0.26%
Principal Financial Group Inc	53,086	$757.5K	0.00%
Advisory Research Inc	48,211	$688.0K	0.11%
Cornercap Investment Counsel Inc	37,041	$528.6K	0.09%
Qube Research & Technologies Ltd	23,876	$340.7K	0.00%
Bayesian Capital Management, LP	15,900	$226.9K	0.03%
Fox Run Management, L.L.C.	11,657	$166.3K	0.05%
Counterpoint Mutual Funds LLC	7,597	$108.4K	0.10%
State of Wyoming	5,808	$82.9K	0.03%
Aquatic Capital Management LLC	2,500	$36.0K	0.00%
Ronald Blue Trust, Inc.	190	$2.00K	0.00%
Northwestern Mutual Wealth Management Co	5	$71	0.00%

Sold out (13)

Institutions that held Integral Ad Science Holding Corp. at the end of Q4 2022 and filed for Q1 2023 without it.

Institutions that sold out of IAS in Q1 2023
Institution	Shares, Q4 2022	Value, Q4 2022
Alyeska Investment Group, L.P.	275,000	$2.42M
Two Sigma Investments, LP	139,336	$1.22M
Squarepoint Ops LLC	66,896	$588.0K
B. Riley Asset Management, LLC	50,000	$439.5K
Graham Capital Management, L.P.	45,494	$399.9K
Cubist Systematic Strategies, LLC	28,248	$248.3K
Algert Global LLC	24,480	$215.2K
Boothbay Fund Management, LLC	18,807	$165.3K
HSBC Holdings PLC	15,673	$135.9K
Dynamic Technology Lab Private Ltd	10,000	$88.0K
Federated Hermes, Inc.	4,339	$38.1K
Point72 Middle East FZE	1,990	$17.5K
Credit Suisse AG	1	$9

Not filed for Q1 2023 yet (1)

Institutions that held Integral Ad Science Holding Corp. at the end of Q4 2022 and haven't filed a 13F for Q1 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IAS in Q4 2022 that haven't filed for Q1 2023
Institution	Shares, Q4 2022	Value, Q4 2022
Alpha Paradigm Partners, LLC	47,893	$421.0K