Quick Takeaways
- Sunriver Management LLC filed SCHEDULE 13G for Integral Ad Science Holding Corp. Common Stock, $0.001 par value per share (IAS).
- Disclosed ownership: 5.3%.
- Date of event: 30 Jun 2025.
Sunriver Management LLC - 30 Jun 2025 SCHEDULE 13G Report for Integral Ad Science Holding Corp. Common Stock, $0.001 par value per share (IAS)
- Filing Manager
- Sunriver Management LLC
- Reporting Manager
- SUNRIVER MANAGEMENT LLC
- Symbol
- IAS
- Shares outstanding
- 166,470,075 shares
- Disclosed Ownership
- 8,822,914 shares
- Ownership
- 5.3%
- Form type
- SCHEDULE 13G
- Filing time
- 13 Aug 2025, 20:43:23 UTC
- Date of event
- 30 Jun 2025
- Next filing
- 13 Nov 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Sunriver Management LLC disclosed 5.3% ownership in Integral Ad Science Holding Corp. Common Stock, $0.001 par value per share (IAS) on 30 Jun 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 13 Aug 2025, 20:43.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (2)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| SUNRIVER MANAGEMENT LLC | 5.3% | 8,822,914 | 0 | 8,822,914 | By: /s/ Randolph Willett Cook | Randolph Willett Cook, Managing Member | |
| RANDOLPH WILLETT COOK | 5.3% | 8,822,914 | 0 | 8,822,914 | By: /s/ Randolph Willett Cook | Randolph Willett Cook |