Integral Ad Science
IAS was delisted on the 22nd of December, 2025.
173 hedge funds and large institutions have $2.19B invested in Integral Ad Science in 2023 Q4 according to their latest regulatory filings, with 31 funds opening new positions, 76 increasing their positions, 47 reducing their positions, and 21 closing their positions.
62% more repeat investments, than reductions
Existing positions increased: 76 | Existing positions reduced: 47
48% more first-time investments, than exits
New positions opened: 31 | Existing positions closed: 21
25% more funds holding in top 10
Funds holding in top 10: 4 → 5 (+1)
22% more capital invested
Capital invested by funds: $1.79B → $2.19B (+$397M)
6% more funds holding
Funds holding: 163 → 173 (+10)
0.13% more ownership
Funds ownership: 95.93% → 96.06% (+0.13%)
18% less call options, than puts
Call options by funds: $329K | Put options by funds: $401K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$63.6M |
| 2 |
Goldman Sachs
New York
|
+$31.5M |
| 3 |
Aberdeen Group
Edinburgh,
United Kingdom
|
+$23.5M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$10.4M |
| 5 |
PCP
P2 Capital Partners
New York
|
+$10.4M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
VEPM
Vista Equity Partners Management
San Francisco,
California
|
-$147M |
| 2 |
SM
Sunriver Management
Greenwich,
Connecticut
|
-$17.3M |
| 3 |
ECM
Engle Capital Management
Greenwich,
Connecticut
|
-$6.09M |
| 4 |
Voloridge Investment Management
Jupiter,
Florida
|
-$5.97M |
| 5 |
PCM
Portolan Capital Management
Boston,
Massachusetts
|
-$5.16M |
IAS Hedge Fund Activity: Q4 2023 in Review
173 of the 6,871 institutional investors tracked by Wall St. Rank reported a position in Integral Ad Science (IAS) for Q4 2023, worth a combined $2.19B — up 22% from $1.79B a quarter earlier.
Buyers outnumbered sellers: 31 funds opened new IAS positions and 21 closed out — a net gain of 10 holders — while 76 added to existing stakes and 47 trimmed.
The largest buyer was Millennium Management, adding an estimated $63.6M. The largest seller was Vista Equity Partners Management, cutting an estimated $147M.
- 173 institutional investors held Integral Ad Science (IAS) as of Q4 2023, up from 163 in Q3 2023.
- Funds reported $2.19B of Integral Ad Science stock for Q4 2023, up 22% quarter-over-quarter.
- 31 funds opened new Integral Ad Science positions in Q4 2023 and 21 closed out, a net change of +10 holders.
- The largest Integral Ad Science buyer in Q4 2023 was Millennium Management, an estimated $63.6M added.
- The largest Integral Ad Science seller in Q4 2023 was Vista Equity Partners Management, an estimated $147M sold.
Based on aggregated 13F filings for Q4 2023.