AVTR — AVANTOR INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
About AVANTOR INC (AVTR)
AVANTOR INC (AVTR) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $105M. Across recent filings, tracked investors recorded 7 new positions, 0 increased, 0 reduced, and 0 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in AVTR
How many top investors track AVTR
A small number of top investors own this.
AVTR Ownership Composition
How AVANTOR INC is held across tracked investor types, based on reported 13F positions.
- Other100.0%
Tracked investors reporting AVTR
- Ken GriffinMar 31, 2026Citadel AdvisorsShares663.1KValue$5.2M% Portfolio0.00%
- Izzy EnglanderMar 31, 2026Millennium ManagementShares2.5MValue$19.9M% Portfolio0.01%
- Paul Tudor JonesMar 31, 2026Tudor Investment CorpShares2.3MValue$18.4M% Portfolio0.03%
- Ray DalioMar 31, 2026Bridgewater AssociatesShares128.2KValue$1M% Portfolio0.00%
Recent activity
- $24.6MFeb 17, 2026
- $18.4MMay 15, 2026
- $42MFeb 17, 2026
- $19.9MMay 15, 2026
- New$5.2MMay 15, 2026
- New$1MMay 15, 2026
- New$104.7MNov 14, 2025
Frequently asked questions
- How many institutional investors hold AVTR?
- 4 tracked institutional investors disclosed a position in AVTR (AVANTOR INC) in their most recent 13F filing.
- Who is the largest institutional holder of AVTR?
- Ken Griffin, Citadel Advisors, holds the largest disclosed position in AVTR, valued at $105M.
- Did institutional ownership of AVTR increase or decrease?
- Across recent 13F filings, tracked investors recorded 7 new positions, 0 increased, 0 reduced, and 0 fully exited AVTR.
- Where does this AVTR ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.