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IAS

Integral Ad Science
IAS

Delisted

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

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171 hedge funds and large institutions have $1.65B invested in Integral Ad Science in 2025 Q3 according to their latest regulatory filings, with 47 funds opening new positions, 55 increasing their positions, 48 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed

3,080% more call options, than puts

Call options by funds: $1.11M | Put options by funds: $35K

23% more capital invested

Capital invested by funds: $1.34B → $1.65B (+$310M)

15% more repeat investments, than reductions

Existing positions increased: 55 | Existing positions reduced: 48

7% more first-time investments, than exits

New positions opened: 47 | Existing positions closed: 44

1% more funds holding

Funds holding: 170 → 171 (+1)

0.13% less ownership

Funds ownership: 97.81% → 97.69% (-0.13%)

14% less funds holding in top 10

Funds holding in top 10: 7 → 6 (-1)

Holders
171
Holders Change
+1
Holders Change %
+0.59%
% of All Funds
2.24%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.08%
New
47
Increased
55
Reduced
48
Closed
44
Calls
$1.11M
Puts
$35K
Net Calls
+$1.08M
Net Calls Change
+$1M

Top Buyers

Rank Fund Capital Flow
1
KC
Kryger Capital
United Kingdom
+$26M
2
NAM
Nexpoint Asset Management
Texas
+$23.2M
3
GCL
Glazer Capital LLC
New York
+$18.2M
4
FTCM
First Trust Capital Management
Illinois
+$18.1M
5
SFM
Soros Fund Management
New York
+$17.2M

Top Sellers

Rank Fund Capital Flow
1
RCMNY
Rubric Capital Management (New York)
New York
-$24.7M
2
CM
Corvex Management
New York
-$21.8M
3
ClearBridge Investments
ClearBridge Investments
New York
-$19.3M
4
AFCM
Alta Fox Capital Management
Texas
-$15M
5
SM
Sunriver Management
Connecticut
-$14.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
ICM
176
Invenomic Capital Management
Massachusetts
– -$13.1M -1,580,066 Closed
Jacobs Levy Equity Management
177
Jacobs Levy Equity Management
New Jersey
– -$8.61M -1,035,774 Closed
FCM
178
Frontier Capital Management
Massachusetts
– -$6.84M -822,643 Closed
Renaissance Technologies
179
Renaissance Technologies
New York
– -$1.93M -232,300 Closed
OL
180
one8zero8 LLC
North Carolina
– -$1.74M -209,425 Closed
HF
181
HRT Financial
New York
– -$1.41M -170,208 Closed
AG
182
Algert Global
California
– -$1.36M -164,250 Closed
Man Group
183
Man Group
United Kingdom
– -$974K -117,229 Closed
MHP
184
Manatuck Hill Partners
Connecticut
– -$831K -100,000 Closed
JAM
185
Jupiter Asset Management
United Kingdom
– -$734K -88,272 Closed
Bank of Montreal
186
Bank of Montreal
Ontario, Canada
– -$599K -72,138 Closed
DM
187
Delphi Management
Massachusetts
– -$539K -64,804 Closed
Citadel Advisors
188
Citadel Advisors
Florida
– -$553K -63,817 Closed
Raymond James Financial
189
Raymond James Financial
Florida
– -$493K -59,310 Closed
VI
190
Versor Investments
New York
– -$466K -56,100 Closed
Two Sigma Advisers
191
Two Sigma Advisers
New York
– -$437K -52,600 Closed
RAM
192
Readystate Asset Management
Illinois
– -$421K -50,685 Closed
Marshall Wace
193
Marshall Wace
United Kingdom
– -$369K -44,354 Closed
Squarepoint
194
Squarepoint
New York
– -$340K -40,902 Closed
Federated Hermes
195
Federated Hermes
Pennsylvania
– -$249K -30,000 Closed
DS
196
DRW Securities
Illinois
– -$236K -28,347 Closed
CCIA
197
Campbell & Co Investment Adviser
Maryland
– -$219K -26,314 Closed
Lazard Asset Management
198
Lazard Asset Management
New York
– -$215K -25,957 Closed
CC
199
Centiva Capital
New York
– -$208K -25,029 Closed
BHCM
200
Brevan Howard Capital Management
Jersey
– -$189K -22,762 Closed
5 6 7
8
9

IAS Hedge Fund Activity: Q3 2025 in Review

171 of the 7,625 institutional investors tracked by Wall St. Rank reported a position in Integral Ad Science (IAS) for Q3 2025, worth a combined $1.65B — up 23% from $1.34B a quarter earlier.

Buyers outnumbered sellers: 47 funds opened new IAS positions and 44 closed out — a net gain of 3 holders — while 55 added to existing stakes and 48 trimmed.

The largest buyer was Kryger Capital, opening a new position worth an estimated $26M. The largest seller was Rubric Capital Management (New York), exiting entirely with an estimated $24.7M sold.

  • 171 institutional investors held Integral Ad Science (IAS) as of Q3 2025, up from 170 in Q2 2025.
  • Funds reported $1.65B of Integral Ad Science stock for Q3 2025, up 23% quarter-over-quarter.
  • 47 funds opened new Integral Ad Science positions in Q3 2025 and 44 closed out, a net change of +3 holders.
  • The largest Integral Ad Science buyer in Q3 2025 was Kryger Capital, an estimated $26M added.
  • The largest Integral Ad Science seller in Q3 2025 was Rubric Capital Management (New York), an estimated $24.7M sold.

Based on aggregated 13F filings for Q3 2025.