Integral Ad Science
IAS was delisted on the 22nd of December, 2025.
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.
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)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
KC
Kryger Capital
London,
United Kingdom
|
+$26M |
| 2 |
NAM
Nexpoint Asset Management
Dallas,
Texas
|
+$23.2M |
| 3 |
GCL
Glazer Capital LLC
New York
|
+$18.2M |
| 4 |
FTCM
First Trust Capital Management
Chicago,
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
New York
|
-$19.3M |
| 4 |
AFCM
Alta Fox Capital Management
Fort Worth,
Texas
|
-$15M |
| 5 |
SM
Sunriver Management
Greenwich,
Connecticut
|
-$14.7M |
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.