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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
KK
101
KLP Kapitalforvaltning
Norway
$257K +$270K +24,600 New
LPL Financial
102
LPL Financial
California
$249K +$8K +729 +3%
US Bancorp
103
US Bancorp
Minnesota
$248K -$132K -12,000 -34%
ASRS
104
Arizona State Retirement System
Arizona
$244K +$28.5K +2,601 +13%
ProShare Advisors
105
ProShare Advisors
Maryland
$215K +$75.7K +6,900 +51%
Federated Hermes
106
Federated Hermes
Pennsylvania
$209K -$27.4K -2,500 -11%
New York State Common Retirement Fund
107
New York State Common Retirement Fund
New York
$208K
MG
108
Marex Group
$188K +$11K +1,000 +6%
CIP
109
Cornerstone Investment Partners
Georgia
$187K +$197K +17,941 New
Royal Bank of Canada
110
Royal Bank of Canada
Ontario, Canada
$182K +$95.7K +8,729 +99%
XT
111
XTX Topco
Cayman Islands
$172K +$181K +16,509 New
Handelsbanken Fonder
112
Handelsbanken Fonder
Sweden
$162K +$170K +15,500 New
PFSRSONJ
113
Police & Firemen's Retirement System of New Jersey
New Jersey
$154K +$161K +14,716 New
PCM
114
Prelude Capital Management
New York
$153K +$161K +14,693 New
OCM
115
Osterweis Capital Management
California
$149K
PEAK6
116
PEAK6
Illinois
$146K +$154K +14,012 New
CT
117
ClearAlpha Technologies
Connecticut
$143K +$150K +13,670 New
VI
118
Versor Investments
New York
$140K -$34K -3,100 -19%
Zurich Cantonal Bank
119
Zurich Cantonal Bank
Switzerland
$137K
Ohio Public Employees Retirement System (OPERS)
120
Ohio Public Employees Retirement System (OPERS)
Ohio
$134K
SPA
121
Sherbrooke Park Advisers
New York
$132K +$138K +12,604 New
AT
122
American Trust
Kentucky
$121K -$5.33K -486 -4%
BNP Paribas Financial Markets
123
BNP Paribas Financial Markets
France
$120K +$126K +11,488 New
Creative Planning
124
Creative Planning
Kansas
$115K +$121K +11,059 New
Two Sigma Advisers
125
Two Sigma Advisers
New York
$109K -$241K -22,000 -68%

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.