Sunriver Management LLC

Holdings History for INTEGRAL AD SCIENCE HOLDING CORP. - Common Stock, $0.001 par value per share (IAS)

Symbol: IAS
Investment type: Equity / Common Stock, $0.001 par value per share
Latest Disclosed Shares Owned: 7,120,157 shares
Security Ownership %: 4.3%

Shares, Excluding Options vs Price

Value, Excluding Options

SUNRIVER MANAGEMENT LLC ownership in INTEGRAL AD SCIENCE HOLDING CORP. Common Stock, $0.001 par value per share (IAS)

13 Nov 2025 - SUNRIVER MANAGEMENT LLC has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 7,120,157 shares of INTEGRAL AD SCIENCE HOLDING CORP. Common Stock, $0.001 par value per share (IAS). This represents 4.3% ownership of the company. In their previous filing dated 13 Aug 2025, Sunriver Management LLC had reported owning 8,822,914 shares, indicating a decrease of +19%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
SUNRIVER MANAGEMENT LLC	4.3%	-20%	$72,411,997	7,120,157	-1,702,757	-19%	$10.17	13G/A	30 Sep 2025	13 Nov 2025, 17:56
SUNRIVER MANAGEMENT LLC	5.3%		$72,612,582	8,822,914			$8.23	13G	30 Jun 2025	13 Aug 2025, 20:43

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025		-7.9%	$0	0	-7,120,157	-100%	$10.17	Q4 2025
30 Sep 2025	7.9%	-1.9%	$72,411,997	7,120,157	-1,702,757	-19%	$10.17	Q3 2025
30 Jun 2025	7.9%	+0.58%	$73,318,415	8,822,914	+656,140	+8%	$8.31	Q2 2025
31 Mar 2025	8.1%	+0.87%	$65,824,198	8,166,774	+875,740		$8.06	Q1 2025
31 Dec 2024	9.1%	-0.44%	$76,118,395	7,291,034	-350,432	-4.6%	$10.44	Q4 2024
30 Sep 2024	10%	-0.5%	$82,604,247	7,641,466	-377,677	-4.7%	$10.81	Q3 2024
30 Jun 2024	9.9%	+1.3%	$77,946,070	8,019,143	+1,049,536	+15%	$9.72	Q2 2024
31 Mar 2024	9.1%	+5.9%	$69,486,982	6,969,607	+4,494,322	+182%	$9.97	Q1 2024
31 Dec 2023	5.6%	-2.9%	$35,619,351	2,475,285	-1,295,045	-34%	$14.39	Q4 2023
30 Sep 2023	8.5%	+4.9%	$44,829,224	3,770,330	+2,193,478	+139%	$11.89	Q3 2023
30 Jun 2023	5.7%	+2.1%	$28,351,799	1,576,852	+582,692	+59%	$17.98	Q2 2023
31 Mar 2023	3%	+3%	$14,186,663	994,160	+994,160	NEW	$14.27	Q1 2023

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.