Who Owns IAS?
INTEGRAL AD SCIENCE HLDNG CO — Institutional Ownership & 13F Holdings
$0.00
+0.00 (+0.00%)
Market Cap
—
Shares Outstanding
—
Institutional Holders
184
Total Inst. Value
$581.6B
% of Float Held
—
QoQ Holder Change
+47
Institutional data as of Q1 2025
New Positions
53
Closed Positions
26
Increased
52
Decreased
59
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | CANADA PENSION PLAN INVESTMENT BOARD | $580.3B | 72,000 |
| 2 | VISTA EQUITY PARTNERS MANAGEMENT, LLC | $524.0M | 65,010,001 |
| 3 | Atlas Venture Advisors, Inc. | $183.1M | 22,722,770 |
| 4 | VANGUARD GROUP INC | $73.3M | 9,090,229 |
| 5 | Sunriver Management LLC | $65.8M | 8,166,774 |
| 6 | BlackRock, Inc. | $48.4M | 6,004,070 |
| 7 | P2 Capital Partners, LLC | $38.8M | 4,810,000 |
| 8 | DIMENSIONAL FUND ADVISORS LP | $35.8M | 4,439,747 |
| 9 | Rubric Capital Management LP | $25.5M | 3,166,949 |
| 10 | Corvex Management LPNew | $21.1M | 2,618,000 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| VANGUARD GROUP INC | +42K | $73.3M |
| Sunriver Management LLC | +876K | $65.8M |
| DIMENSIONAL FUND ADVISORS LP | +650K | $35.8M |
| Rubric Capital Management LP | +1.2M | $25.5M |
| Corvex Management LPNew | +2.6M | $21.1M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| AMERIPRISE FINANCIAL INC | -1.0M | $780K |
| Ararat Capital Management LP | -692K | $12.8M |
| CITADEL ADVISORS LLC | -569K | $1K |
| CenterBook Partners LP | -367K | $5.3M |
| TimesSquare Capital Management, LLC | -280K | $13.9M |
Famous Fund Managers
Frequently Asked Questions
How many institutional investors hold IAS?
As of Q1 2025, 184 institutional investors report holding IAS (INTEGRAL AD SCIENCE HLDNG CO) in their 13F filings.
Which hedge fund owns the most IAS?
The largest institutional holder of IAS is CANADA PENSION PLAN INVESTMENT BOARD with $580.3B in shares.
Are institutions buying or selling IAS?
This quarter, 53 institutions opened new positions in IAS and 26 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.