| Member | Buys | Sells | Est. net | Last move |
|---|---|---|---|---|
| Gilbert Cisneros CA31 | 3 | −$24.0K | Sold Aug 13, 25 | |
| Lisa McClain MI09 | 1 | 1 | +$0 | Trimmed Jun 17, 25 |
| Traded | Member | Owner | Type | Amount | Filed | Report |
|---|---|---|---|---|---|---|
| Aug 13, 25 | Gilbert Cisneros CA31 | Self | Sell | $1,001 - $15,000 | Sep 12, 25 (30d) | |
| Aug 12, 25 | Gilbert Cisneros CA31 | Self | Sell (part) | $1,001 - $15,000 | Sep 12, 25 (31d) | |
| Jul 23, 25 | Gilbert Cisneros CA31 | Self | Sell (part) | $1,001 - $15,000 | Aug 14, 25 (22d) | |
| Jun 17, 25 | Lisa McClain MI09 | Spouse | Sell (part) | $1,001 - $15,000 | Aug 13, 25 (57d) | |
| Jun 11, 25 | Lisa McClain MI09 | Spouse | Buy | $1,001 - $15,000 | Aug 13, 25 (63d) |
From the House's STOCK Act reports (Senate not included). Members disclose trades, not holdings, as value ranges up to 45 days later, so amounts are estimates and “last move” is a hint at who still holds it, not a position. All recent congress trades
| Date | Insider | Transaction | Shares | Value |
|---|---|---|---|---|
| Sep 20, 2026 | Garner Todd W.Chief Financial Officer | Stock Award(Grant) at price 0.00 per share. | 49.7K | — |
| May 7, 2026 | Lucier Gregory TDirector | Purchase at price 8.32 per share. | 10K | $83.20K |
| May 6, 2026 | Massaro Joseph RDirector | Stock Award(Grant) at price 0.00 per share. | 25.3K | — |
| May 6, 2026 | Severino Michael EDirector | Stock Award(Grant) at price 0.00 per share. | 25.3K | — |
| May 6, 2026 | Mehra Sanjeev KDirector | Stock Award(Grant) at price 0.00 per share. | 25.3K | — |
| May 6, 2026 | Lucier Gregory TDirector | Stock Award(Grant) at price 0.00 per share. | 25.3K | — |
| May 6, 2026 | Summe Gregory LDirector | Stock Award(Grant) at price 0.00 per share. | 25.3K | — |
| May 6, 2026 | Makin LouiseDirector | Stock Award(Grant) at price 0.00 per share. | 25.3K | — |
| May 6, 2026 | Dingemans SimonDirector | Stock Award(Grant) at price 0.00 per share. | 25.3K | — |
| May 6, 2026 | Murthy MalaDirector | Stock Award(Grant) at price 0.00 per share. | 25.3K | — |
| Apr 30, 2026 | Dingemans SimonDirector | Purchase at price 8.14 per share. | 25K | $203.50K |
| Apr 30, 2026 | Brellier LudovicOfficer | Stock Award(Grant) at price 0.00 per share. | 146.6K | — |
| Apr 1, 2026 | Eck Steven W.Officer | Stock Award(Grant) at price 0.00 per share. | 31.6K | — |
| Mar 9, 2026 | Mehra Sanjeev KDirector | Purchase at price 8.01 per share. | 125K | $1.00M |
| Feb 18, 2026 | Eck Steven W.Officer | Stock Award(Grant) at price 0.00 per share. | 48.9K | — |
| Feb 18, 2026 | Jones R BrentChief Financial Officer | Stock Award(Grant) at price 0.00 per share. | 161.2K | — |
| Feb 18, 2026 | Lucier Gregory TDirector | Purchase at price 9.16 per share. | 50K | $458.00K |
| Feb 18, 2026 | Walker CoreyOfficer | Stock Award(Grant) at price 0.00 per share. | 161.2K | — |
| Feb 18, 2026 | Ligner EmmanuelChief Executive Officer | Stock Award(Grant) at price 0.00 per share. | 483.7K | — |
| Feb 18, 2026 | Blenn MaryChief Operating Officer | Stock Award(Grant) at price 0.00 per share. | 236K | — |
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -4.7 | -17.1 | -13.4 | 3.3 | 12.6 | 8.6 | 39.2 | 5.5 | 3.5 | 2.9 | +35.2% | ||
| 2025 | 5.7 | -25.0 | -2.9 | -19.9 | -0.6 | 4.3 | -0.1 | 0.2 | -7.3 | -5.3 | -0.8 | -2.3 | −45.6% |
| 2024 | 0.7 | 7.2 | 3.8 | -5.2 | -0.6 | -12.0 | 26.2 | -3.4 | 0.1 | -13.5 | -5.9 | 0.0 | −7.7% |
| 2023 | 13.3 | 2.0 | -13.3 | -7.9 | 2.4 | 3.0 | 0.1 | 5.3 | -2.6 | -17.3 | 21.5 | 7.8 | +8.3% |
| 2022 | -11.4 | -7.1 | -2.5 | -5.7 | 0.5 | -2.9 | -6.7 | -14.2 | -21.3 | 2.9 | 10.5 | -5.3 | −50.0% |
| 2021 | 4.8 | -5.5 | 3.8 | 10.8 | 0.3 | 10.5 | 5.8 | 4.9 | 3.7 | -1.3 | -2.2 | 6.7 | +49.7% |
| 2020 | 1.8 | -14.7 | -20.7 | 34.6 | 12.8 | -10.4 | 29.9 | 2.2 | -0.4 | 3.5 | 17.2 | 3.2 | +55.1% |
| 2019 | 9.1 | -7.9 | -0.5 | -16.0 | -3.3 | 20.5 | 6.0 | +3.7% |
Avantor, Inc. engages in the provision of mission-critical products and services to customers in the biopharma, healthcare, education and government, advanced technologies, and applied materials industries in the Americas, Europe, Asia, the Middle East, and Africa. The company offers materials and consumables, such as purity chemicals and reagents, lab products and supplies, formulated silicone materials, customized excipients, customized single-use assemblies, process chromatography resins and columns, analytical sample prep kits, education and microbiology products, clinical trial kits, and fluid handling tips. It also provides equipment and instrumentation products, including filtration systems, virus inactivation systems, incubators, analytical instruments, evaporators, ultra-low-temperature freezers, biological safety cabinets, peristaltic pumps, and critical environment supplies. In addition, the company offers services and specialty procurements comprising onsite lab and production, equipment, procurement and sourcing, and biopharmaceutical material scale-up and development services. Further, it provides scientific research support services, such as DNA extraction, bioreactor servicing, clinical and biorepository, compound management, cleanroom control, monitoring, maintenance, and sanitization services. The company was founded in 1904 and is headquartered in Radnor, Pennsylvania.
Buy / hold / sell counts