Integral Ad Science Ownership | Who Owns Integral Ad Science?

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Integral Ad Science Ownership Summary

Integral Ad Science is owned by 97.71% institutional investors, 0.94% insiders, and 1.35% retail investors. Vista equity partners management is the largest institutional shareholder, holding 39.40% of IAS shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.86% of its assets in Integral Ad Science shares.

IAS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Integral Ad Science	97.71%	0.94%	1.35%
Sector	Communication Services Stocks	31.39%	16.65%	51.96%
Industry	Advertising Stocks	39.66%	14.60%	45.74%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vista equity partners management	65.01M	39.40%	$661.15M
Atlas venture advisors	22.72M	13.77%	$231.09M
Vanguard group	9.04M	5.48%	$91.97M
Sunriver management	7.12M	4.31%	$72.41M
Blackrock funding, inc. /de	6.76M	4.09%	$68.72M
Blackrock	5.91M	3.71%	$57.42M
Dimensional fund advisors lp	5.95M	3.61%	$60.50M
P2 capital partners	4.83M	2.93%	$49.13M
Kryger capital	3.00M	1.82%	$30.51M
Nexpoint asset management	2.68M	1.63%	$27.29M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Vista equity partners management	65.01M	55.63%	$661.15M
Atlas venture advisors	22.72M	52.79%	$231.09M
P2 capital partners	4.83M	9.44%	$49.13M
Sunriver management	7.12M	7.87%	$72.41M
Circumference group	450.00K	5.11%	$4.58M
Ararat capital management lp	668.41K	3.64%	$6.80M
Kryger capital	3.00M	3.52%	$30.51M
Monimus capital management, lp	464.11K	2.91%	$4.72M
Nexpoint asset management	2.68M	2.37%	$27.29M
B. riley asset management	229.14K	2.26%	$2.39M

Top Buyers

Holder	Shares	% Assets	Change
Kryger capital	3.00M	3.52%	3.00M
Nexpoint asset management	2.68M	2.37%	2.68M
Glazer capital	2.10M	0.72%	2.10M
Soros fund management	1.99M	0.29%	1.99M
Verition fund management	1.95M	0.08%	1.84M

Top Sellers

Holder	Shares	% Assets	Change
Alyeska investment group	-	-	-3.98M
Rubric capital management lp	-	-	-2.97M
Corvex management lp	-	-	-2.62M
Clearbridge investments	-	-	-2.33M
Alta fox capital management	-	-	-1.80M

New Positions

Holder	Shares	% Assets	Change	Value
Kryger capital	3.00M	3.52%	3.00M	$30.51M
Nexpoint asset management	2.68M	2.37%	2.68M	$27.29M
Glazer capital	2.10M	0.72%	2.10M	$21.32M
Soros fund management	1.99M	0.29%	1.99M	$20.24M
Australiansuper pty	1.24M	0.06%	1.24M	$12.62M

Sold Out

Holder	Change
Dinuzzo private wealth	-1.00
Claris advisors, llc / mo /	-2.00
Global financial private client	-4.00
National bank of canada /fi/	-7.00
Nelson, van denburg & campbell wealth management group	-9.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	166	2.47%	161,246,125	0.70%	97	1.04%	97	-10.19%	47	20.51%
Jun 30, 2025	169	-6.63%	161,285,614	72.40%	97	2.99%	108	9.09%	43	-29.51%
Mar 31, 2025	186	14.11%	158,913,989	1.23%	97	1.03%	101	13.48%	63	14.55%
Dec 31, 2024	80	-53.76%	50,555,515	-67.44%	31	0.34%	42	-54.35%	27	-53.45%
Sep 30, 2024	171	6.21%	155,072,459	-0.94%	95	0.99%	92	-8.00%	56	43.59%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	3.07M	1.86%	-68.02K
Vanguard Small Cap Index	2.41M	1.46%	-16.07K
iShares Russell 2000 ETF	1.86M	1.12%	-
ClearBridge Small Cap Growth A	1.62M	0.98%	-
ClearBridge Small Cap Growth	1.60M	0.97%	-17.80K
Invenomic Institutional	1.51M	0.91%	726.99K
Vanguard Small Cap Growth Index Inv	1.37M	0.83%	-513.00
Columbia Small Cap Value I A	962.03K	0.58%	185.64K
Columbia Small Cap Value Discv A	962.03K	0.58%	185.64K
Nuveen Quant Small Cap Equity R6	854.52K	0.51%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Dec 02, 2025	Gil Alexis II	Chief Accounting Officer	Sell	$28.59K
Nov 05, 2025	Utzschneider Lisa	Chief Executive Officer	Sell	$124.72K
Oct 07, 2025	Utzschneider Lisa	Chief Executive Officer	Sell	$94.40K
Oct 03, 2025	Gil Alexis II	Chief Accounting Officer	Sell	$35.90K
Oct 03, 2025	Utzschneider Lisa	Chief Executive Officer	Sell	$175.95K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	6
2025 Q3	-	6
2025 Q2	-	5
2025 Q1	-	3
2024 Q4	-	9

IAS Ownership FAQ

Who Owns Integral Ad Science?

Integral Ad Science shareholders are primarily institutional investors at 97.71%, followed by 0.94% insiders and 1.35% retail investors. The average institutional ownership in Integral Ad Science's industry, Advertising Stocks , is 39.66%, which Integral Ad Science exceeds.

Who owns the most shares of Integral Ad Science?

Integral Ad Science’s largest shareholders are Vista equity partners management (65.01M shares, 39.40%), Atlas venture advisors (22.72M shares, 13.77%), and Vanguard group (9.04M shares, 5.48%). Together, they hold 58.65% of Integral Ad Science’s total shares outstanding.

Does Blackrock own Integral Ad Science?

Yes, BlackRock owns 3.71% of Integral Ad Science, totaling 5.91M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 57.42M$. In the last quarter, BlackRock increased its holdings by 473.82K shares, a 8.72% change.

Who is Integral Ad Science’s biggest shareholder by percentage of total assets invested?

Vista equity partners management is Integral Ad Science’s biggest shareholder by percentage of total assets invested, with 55.62% of its assets in 65.01M Integral Ad Science shares, valued at 661.15M$.

Who is the top mutual fund holder of Integral Ad Science shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Integral Ad Science shares, with 1.86% of its total shares outstanding invested in 3.07M Integral Ad Science shares.

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