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IAS

Integral Ad Science
IAS

Delisted

IAS was delisted on the 22nd of December, 2025.

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170 hedge funds and large institutions have $1.34B invested in Integral Ad Science in 2025 Q2 according to their latest regulatory filings, with 36 funds opening new positions, 72 increasing their positions, 44 reducing their positions, and 52 closing their positions.

New
Increased
Maintained
Reduced
Closed

312% more call options, than puts

Call options by funds: $103K | Put options by funds: $25K

64% more repeat investments, than reductions

Existing positions increased: 72 | Existing positions reduced: 44

5% more capital invested

Capital invested by funds: $1.28B → $1.34B (+$59.6M)

0.74% more ownership

Funds ownership: 97.08% → 97.81% (+0.74%)

9% less funds holding

Funds holding: 187 → 170 (-17)

22% less funds holding in top 10

Funds holding in top 10: 9 → 7 (-2)

31% less first-time investments, than exits

New positions opened: 36 | Existing positions closed: 52

Holders
170
Holders Change
-17
Holders Change %
-9.09%
% of All Funds
2.24%
Holding in Top 10
7
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-22.22%
% of All Funds
0.09%
New
36
Increased
72
Reduced
44
Closed
52
Calls
$103K
Puts
$25K
Net Calls
+$78K
Net Calls Change
-$200K

Top Buyers

Rank Fund Capital Flow
1
Ameriprise
Ameriprise
Minnesota
+$8.83M
2
CP
CenterBook Partners
Connecticut
+$8.12M
3
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$7.37M
4
BlackRock
BlackRock
New York
+$5.06M
5
SM
Sunriver Management
Connecticut
+$5.01M

Top Sellers

Rank Fund Capital Flow
1
TCM
TimesSquare Capital Management
New York
-$13.9M
2
CSS
Cubist Systematic Strategies
Connecticut
-$7.44M
3
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
-$4M
4
Millennium Management
Millennium Management
New York
-$3.28M
5
Jacobs Levy Equity Management
Jacobs Levy Equity Management
New Jersey
-$2.61M
Name Holding Trade Value Shares
Change 		Change in
Stake
JFG
176
Jefferies Financial Group
New York
– -$1.81M -225,000 Closed
AI
177
Atom Investors
Texas
– -$1.35M -167,575 Closed
IPI
178
Inflection Point Investments
United Kingdom
– -$1.26M -156,899 Closed
SSA
179
Schonfeld Strategic Advisors
New York
– -$1.09M -134,922 Closed
EIM
180
Essex Investment Management
Massachusetts
– -$1.03M -128,408 Closed
MF
181
Magnetar Financial
Illinois
– -$865K -107,327 Closed
TC
182
Tejara Capital
United Kingdom
– -$805K -99,854 Closed
SCM
183
Semanteon Capital Management
Massachusetts
– -$763K -94,662 Closed
2C
184
272 Capital
Texas
– -$676K -83,930 Closed
FRM
185
Fox Run Management
Connecticut
– -$640K -79,423 Closed
Jennison Associates
186
Jennison Associates
New York
– -$616K -76,373 Closed
Point72 Asset Management
187
Point72 Asset Management
Connecticut
– -$614K -76,155 Closed
GCP
188
GSA Capital Partners
United Kingdom
– -$603K -74,787 Closed
BCM
189
Bayesian Capital Management
New York
– -$468K -58,100 Closed
SFI
190
Susquehanna Fundamental Investments
Pennsylvania
– -$467K -58,002 Closed
RP
191
Repertoire Partners
New York
– -$397K -49,301 Closed
QT
192
Quantbot Technologies
New York
– -$384K -47,687 Closed
LCM
193
Legato Capital Management
California
– -$308K -38,239 Closed
CF
194
Corebridge Financial
Texas
– -$288K -35,758 Closed
CAU
195
Caxton Associates (UK)
– -$282K -35,029 Closed
MG
196
Marex Group
– -$145K -18,000 Closed
DC
197
Diametric Capital
Massachusetts
– -$141K -17,467 Closed
CIP
198
Cornerstone Investment Partners
Georgia
– -$133K -16,497 Closed
CWM
199
CIBC World Markets
New York
– -$131K -16,196 Closed
ACM
200
Aquatic Capital Management
Illinois
– -$127K -15,720 Closed
5 6 7
8
9

IAS Hedge Fund Activity: Q2 2025 in Review

170 of the 7,598 institutional investors tracked by Wall St. Rank reported a position in Integral Ad Science (IAS) for Q2 2025, worth a combined $1.34B — up 4.6% from $1.28B a quarter earlier.

Sellers outnumbered buyers: 52 funds closed out of IAS and 36 opened new positions — a net loss of 16 holders — while 44 trimmed existing stakes and 72 added.

The largest buyer was Ameriprise, adding an estimated $8.83M. The largest seller was TimesSquare Capital Management, exiting entirely with an estimated $13.9M sold.

  • 170 institutional investors held Integral Ad Science (IAS) as of Q2 2025, down from 187 in Q1 2025.
  • Funds reported $1.34B of Integral Ad Science stock for Q2 2025, up 4.6% quarter-over-quarter.
  • 36 funds opened new Integral Ad Science positions in Q2 2025 and 52 closed out, a net change of -16 holders.
  • The largest Integral Ad Science buyer in Q2 2025 was Ameriprise, an estimated $8.83M added.
  • The largest Integral Ad Science seller in Q2 2025 was TimesSquare Capital Management, an estimated $13.9M sold.

Based on aggregated 13F filings for Q2 2025.