Avantor, Inc. (AVTR) Stock
5 members of Congress disclosed 13 trades in AVTR since 2019: 6 purchases and 7 sales, most recently Gilbert Cisneros (sale, Aug 13, 2025). 5 of the hedge funds AlphaScala tracks reported AVTR in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Marshall Wace's at $129.99M.
Which members of Congress traded Avantor, Inc. (AVTR)?
Most recent: Gilbert Cisneros (sale, Aug 13, 2025); records start May 17, 2019.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| Gil Cisneros D-CA · House | 2025-08-13 | sale | $1k – $15k |
| Gil Cisneros D-CA · House | 2025-08-12 | partial sale | $1k – $15k |
| Gil Cisneros D-CA · House | 2025-07-23 | partial sale | $1k – $15k |
| Lisa McClain R-MI · House | 2025-06-17 | partial sale | $1k – $15k |
| Lisa McClain R-MI · House | 2025-06-11 | purchase | $1k – $15k |
| John James R-MI · House | 2024-09-04 | sale | $1k – $15k |
| John James R-MI · House | 2023-11-10 | purchase | $1k – $15k |
| Dan Goldman D-NY · House | 2023-07-12 | sale | $1k – $15k |
From STOCK Act periodic transaction reports. House filings as of Nov 5, 2026.
See all AVTR political trades →Which hedge funds own AVTR?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Marshall Wace | 13.13M | $129.99M | +282% |
| D.E. Shaw David Shaw | 9.57M | $94.76M | -27% |
| Millennium Management Israel Englander | 754K | $7.46M | -69% |
| Citadel Ken Griffin | 399K | $3.95M | -30% |
| Bridgewater Associates Ray Dalio | 301K | $2.98M | +135% |
13F holdings as of Jun 30, 2026
Explore all tracked funds →AVTR price chart
Powered by TradingViewWhat does Avantor, Inc. do?
Avantor Inc. is a prominent provider of mission-critical products and services to customers in the life sciences, advanced technologies, and applied materials industries. The company focuses on enabling science to improve the quality of life in healthcare, education, and public sectors. Avantor offers an extensive portfolio that includes laboratory chemicals, consumables, equipment, and instrumentation, which supports a wide range of scientific applications from research and development to quality control and manufacturing processes. With operations that span more than 30 countries, Avantor serves a diverse client base, including pharmaceutical and biotechnology companies, academic and government institutions, and electronic materials manufacturers. Its integrated offerings play a pivotal role in advancing research and innovation across vital sectors, reinforcing its significance in the global market. Avantor's commitment to sustainability and compliance further enhances its reputation as a responsible leader in the supply of essential science and technology products.