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IAS

Integral Ad Science

Delisted

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

165 hedge funds and large institutions have $1.64B invested in Integral Ad Science in 2024 Q4 according to their latest regulatory filings, with 38 funds opening new positions, 53 increasing their positions, 57 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed

391% more call options, than puts

Call options by funds: $231K | Put options by funds: $47K

0.27% more ownership

Funds ownership: 96.27%96.53% (+0.27%)

2% less capital invested

Capital invested by funds: $1.68B → $1.64B (-$39.9M)

7% less repeat investments, than reductions

Existing positions increased: 53 | Existing positions reduced: 57

10% less first-time investments, than exits

New positions opened: 38 | Existing positions closed: 42

4% less funds holding

Funds holding: 172165 (-7)

14% less funds holding in top 10

Funds holding in top 10: 76 (-1)

Holders
165
Holders Change
-7
Holders Change %
-4.07%
% of All Funds
2.17%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.08%
New
38
Increased
53
Reduced
57
Closed
42
Calls
$231K
Puts
$47K
Net Calls
+$184K
Net Calls Change
-$1.47M
Name Holding Trade Value Shares
Change
Change in
Stake
VI
51
Vestcor Inc
New Brunswick, Canada
$1.57M +$1.65M +150,000 New
Barclays
52
Barclays
United Kingdom
$1.48M +$158K +14,404 +11%
EIM
53
Essex Investment Management
Massachusetts
$1.35M -$210K -19,155 -13%
BFM
54
Boothbay Fund Management
New York
$1.23M -$636K -58,027 -33%
Franklin Resources
55
Franklin Resources
California
$1.14M -$13.8K -1,257 -1%
Qube Research & Technologies (QRT)
56
Qube Research & Technologies (QRT)
United Kingdom
$1.13M -$446K -40,687 -27%
RhumbLine Advisers
57
RhumbLine Advisers
Massachusetts
$1.12M -$14K -1,275 -1%
CA
58
Clune & Associates
Illinois
$1.04M +$1.09M +99,324 New
Russell Investments Group
59
Russell Investments Group
United Kingdom
$983K -$328K -29,928 -24%
Susquehanna International Group
60
Susquehanna International Group
Pennsylvania
$918K -$31.6K -2,877 -3%
Wells Fargo
61
Wells Fargo
California
$888K +$83.2K +7,587 +10%
Legal & General Group
62
Legal & General Group
United Kingdom
$875K +$153K +13,945 +20%
State Board of Administration of Florida Retirement System
63
State Board of Administration of Florida Retirement System
Florida
$866K +$24.3K +2,212 +3%
AG
64
Algert Global
California
$864K -$3.45M -314,792 -79%
QOP
65
Quinn Opportunity Partners
Virginia
$835K +$877K +80,000 New
Raymond James Financial
66
Raymond James Financial
Florida
$807K +$848K +77,314 New
AllianceBernstein
67
AllianceBernstein
Tennessee
$799K
California State Teachers Retirement System (CalSTRS)
68
California State Teachers Retirement System (CalSTRS)
California
$782K +$72K +6,564 +10%
Canada Pension Plan Investment Board
69
Canada Pension Plan Investment Board
Ontario, Canada
$752K
ECM
70
Eisler Capital Management
United Kingdom
$740K +$768K +70,000 New
Citigroup
71
Citigroup
New York
$695K +$147K +13,402 +25%
NMC
72
Nine Masts Capital
Hong Kong
$671K +$705K +64,291 New
Millennium Management
73
Millennium Management
New York
$669K +$703K +64,124 New
Jennison Associates
74
Jennison Associates
New York
$663K +$22.4K +2,046 +3%
CF
75
Cantor Fitzgerald
New York
$637K +$669K +61,000 New

IAS Hedge Fund Activity: Q4 2024 in Review

165 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Integral Ad Science (IAS) for Q4 2024, worth a combined $1.64B — down 2.4% from $1.68B a quarter earlier.

Sellers outnumbered buyers: 42 funds closed out of IAS and 38 opened new positions — a net loss of 4 holders — while 57 trimmed existing stakes and 53 added.

The largest buyer was Alyeska Investment Group, opening a new position worth an estimated $43.6M. The largest seller was P2 Capital Partners, cutting an estimated $27.9M.

  • 165 institutional investors held Integral Ad Science (IAS) as of Q4 2024, down from 172 in Q3 2024.
  • Funds reported $1.64B of Integral Ad Science stock for Q4 2024, down 2.4% quarter-over-quarter.
  • 38 funds opened new Integral Ad Science positions in Q4 2024 and 42 closed out, a net change of -4 holders.
  • The largest Integral Ad Science buyer in Q4 2024 was Alyeska Investment Group, an estimated $43.6M added.
  • The largest Integral Ad Science seller in Q4 2024 was P2 Capital Partners, an estimated $27.9M sold.

Based on aggregated 13F filings for Q4 2024.