AVTR Avantor, Inc.: institutional ownership and insider trading
504 funds reported holding $7.79B of Avantor, Inc. in their latest 13F filings; in Q2 2026 funds net bought $146M, with 94 new positions and 64 funds selling out; over the last 12 months insiders bought $8.69M and sold $0 on the open market.
Famous investors holding AVTR
- Mason Hawkins (Southeastern Asset Management): $46.8M, 2.4% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $94.8M, 0.1% of the portfolio
- Ray Dalio (Bridgewater Associates): $2.98M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $7.46M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $5.08M, 0.0% of the portfolio
Largest institutional holders of AVTR
- DODGE & COX — $1.19B
- VANGUARD GROUP INC — $744M
- BlackRock, Inc. (BLK) — $696M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $310M
- VANGUARD CAPITAL MANAGEMENT LLC — $305M
- GREENHAVEN ASSOCIATES INC — $244M
- STATE STREET CORP (STT, STT-PG) — $214M
- DIMENSIONAL FUND ADVISORS LP — $202M
- Engine Capital Management, LP — $197M
- BARROW HANLEY MEWHINNEY & STRAUSS LLC — $195M
Recent AVTR insider trades
- May 8, 2026: Lucier Gregory T bought 10,000 shares ($83.2K)
- May 1, 2026: Dingemans Simon bought 25,000 shares ($204K)
- Mar 10, 2026: Mehra Sanjeev K bought 125,000 shares ($1.00M)
- Feb 19, 2026: Lucier Gregory T bought 50,000 shares ($458K)
Members of Congress trading AVTR
- Aug 13, 2025: Gilbert Ray Cisneros, Jr. sold $1.00K–$15.0K
- Aug 12, 2025: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Jul 23, 2025: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Jun 17, 2025: Lisa C. McClain sold part of $1.00K–$15.0K
- Jun 11, 2025: Lisa C. McClain bought $1.00K–$15.0K
- Sep 4, 2024: John James sold $1.00K–$15.0K
- Nov 10, 2023: John James bought $1.00K–$15.0K
5%+ owners
- Vanguard Capital Management: 5.3% (Schedule 13G, filed Apr 29, 2026)