OS OneStream, Inc.: institutional ownership and insider trading
13 funds reported holding $178M of OneStream, Inc. in their latest 13F filings; in Q2 2026 funds net bought $0, with 0 new positions and 179 funds selling out; over the last 12 months insiders bought $0 and sold $8.28M on the open market.
Largest institutional holders of OS
- VANGUARD GROUP INC — $158M
- CIBRA Capital Ltd — $12.5M
- EFG Asset Management (North America) Corp. — $1.94M
- CIBC Private Wealth Group LLC — $1.41M
- WOLVERINE TRADING, LLC — $1.23M
- COMERICA BANK — $1.06M
- Nuveen Asset Management, LLC — $1.04M
- CWM, LLC — $583K
- Janney Capital Management LLC — $286K
- AVANTAX ADVISORY SERVICES, INC. — $276K
Recent OS insider trades
- Mar 17, 2026: Hohenstein Ken sold 59,204 shares ($1.40M)
- Mar 11, 2026: Leshinski Scott sold 7,412 shares ($176K)
- Mar 11, 2026: McIntyre Pamela sold 2,015 shares ($47.7K)
- Feb 17, 2026: Hohenstein Ken sold 60,000 shares ($1.41M)
5%+ owners
- KKR Group Partnership L.P.: 67.5% (Schedule 13G/A, filed Feb 12, 2025)
- Thomas Anthony Shea: 16.3% (Schedule 13G/A, filed Feb 13, 2026)
- Craig Colby: 10.9% (Schedule 13G/A, filed May 14, 2025)
- Glazer Capital, LLC: 6.8% (Schedule 13G, filed Feb 9, 2026)