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IAS

Integral Ad Science
IAS

Delisted

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

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163 hedge funds and large institutions have $1.79B invested in Integral Ad Science in 2023 Q3 according to their latest regulatory filings, with 29 funds opening new positions, 73 increasing their positions, 47 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed

55% more repeat investments, than reductions

Existing positions increased: 73 | Existing positions reduced: 47

40% more call options, than puts

Call options by funds: $286K | Put options by funds: $204K

0% more funds holding in top 10

Funds holding in top 10: 4 → 4 (0)

1.29% less ownership

Funds ownership: 97.22% → 95.93% (-1.3%)

3% less funds holding

Funds holding: 168 → 163 (-5)

15% less first-time investments, than exits

New positions opened: 29 | Existing positions closed: 34

34% less capital invested

Capital invested by funds: $2.71B → $1.79B (-$917M)

Holders
163
Holders Change
-5
Holders Change %
-2.98%
% of All Funds
2.59%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.06%
New
29
Increased
73
Reduced
47
Closed
34
Calls
$286K
Puts
$204K
Net Calls
+$82K
Net Calls Change
+$71K

Top Buyers

Rank Fund Capital Flow
1
SM
Sunriver Management
Connecticut
+$33.9M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$14.9M
3
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$10.5M
4
BlackRock
BlackRock
New York
+$10M
5
TCM
TimesSquare Capital Management
New York
+$9.37M

Top Sellers

Rank Fund Capital Flow
1
SSA
Schonfeld Strategic Advisors
New York
-$20.1M
2
Fidelity Investments
Fidelity Investments
Massachusetts
-$17.5M
3
Ameriprise
Ameriprise
Minnesota
-$10.3M
4
Citadel Advisors
Citadel Advisors
Florida
-$9.65M
5
Morgan Stanley
Morgan Stanley
New York
-$9.54M
Name Holding Trade Value Shares
Change 		Change in
Stake
UBS Group
51
UBS Group
Switzerland
$1.75M +$1.79M +115,822 +365%
Allianz Asset Management
52
Allianz Asset Management
Germany
$1.57M +$2.04M +132,088 New
Tudor Investment Corp
53
Tudor Investment Corp
Connecticut
$1.55M -$2.49M -161,056 -55%
SEI Investments
54
SEI Investments
Pennsylvania
$1.51M -$54.5K -3,528 -3%
Swiss National Bank
55
Swiss National Bank
Switzerland
$1.42M +$543K +35,100 +42%
Arrowstreet Capital
56
Arrowstreet Capital
Massachusetts
$1.41M – – –
Teacher Retirement System of Texas
57
Teacher Retirement System of Texas
Texas
$1.2M +$851K +55,027 +120%
JF
58
Jump Financial
Illinois
$1.2M -$667K -43,126 -30%
CIP
59
Chartwell Investment Partners
Pennsylvania
$1.15M -$201K -12,988 -12%
Ameriprise
60
Ameriprise
Minnesota
$1.14M -$10.3M -664,296 -87%
AG
61
Algert Global
California
$1.13M +$1.29M +83,549 +730%
HP
62
Harbourvest Partners
Massachusetts
$1.09M -$77.3K -5,000 -5%
Invesco
63
Invesco
Georgia
$993K -$6.12M -395,603 -83%
JFG
64
Jefferies Financial Group
New York
$981K -$7.9M -511,020 -86%
DFCM
65
Dark Forest Capital Management
Puerto Rico
$876K -$438K -28,322 -28%
CS
66
Credit Suisse
Switzerland
$860K +$523K +33,805 +88%
PAMP
67
Polar Asset Management Partners
Ontario, Canada
$787K -$3.14M -203,100 -75%
GIPM
68
G2 Investment Partners Management
New York
$773K -$4.29M -277,755 -81%
AR
69
Advisory Research
Illinois
$721K -$163K -10,535 -15%
RhumbLine Advisers
70
RhumbLine Advisers
Massachusetts
$696K +$168K +10,870 +23%
Financial Engines Advisors
71
Financial Engines Advisors
California
$696K +$904K +58,509 New
California State Teachers Retirement System (CalSTRS)
72
California State Teachers Retirement System (CalSTRS)
California
$695K +$185K +11,941 +26%
Barclays
73
Barclays
United Kingdom
$637K +$359K +23,215 +77%
EGM
74
Engineers Gate Manager
New York
$631K +$165K +10,694 +25%
RJFSA
75
Raymond James Financial Services Advisors
Florida
$597K -$813K -52,618 -51%
1 2
3
4 5

IAS Hedge Fund Activity: Q3 2023 in Review

163 of the 6,303 institutional investors tracked by Wall St. Rank reported a position in Integral Ad Science (IAS) for Q3 2023, worth a combined $1.79B — down 34% from $2.71B a quarter earlier.

Sellers outnumbered buyers: 34 funds closed out of IAS and 29 opened new positions — a net loss of 5 holders — while 47 trimmed existing stakes and 73 added.

The largest buyer was Sunriver Management, adding an estimated $33.9M. The largest seller was Schonfeld Strategic Advisors, cutting an estimated $20.1M.

  • 163 institutional investors held Integral Ad Science (IAS) as of Q3 2023, down from 168 in Q2 2023.
  • Funds reported $1.79B of Integral Ad Science stock for Q3 2023, down 34% quarter-over-quarter.
  • 29 funds opened new Integral Ad Science positions in Q3 2023 and 34 closed out, a net change of -5 holders.
  • The largest Integral Ad Science buyer in Q3 2023 was Sunriver Management, an estimated $33.9M added.
  • The largest Integral Ad Science seller in Q3 2023 was Schonfeld Strategic Advisors, an estimated $20.1M sold.

Based on aggregated 13F filings for Q3 2023.