Steven W. Eck is CAO & VP at Avantor, Inc. (AVTR). They have made 5 open-market trades across 1 company since 2021, most recently 2026-07-31.
CIK 0001748813
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AVTR | 129,593 | $2.0M |
Shares reported on the most recent Form 4, priced at the 2026-08-04 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AVTR | SELL | 2025-08-05 | 2025-08-06 | $11.39 | $40K | +12.4% | +17.3% | +2.0% |
| AVTR | SELL | 2025-02-26 | 2025-02-28 | $17.48 | $190K | -6.0% | -3.5% | -22.4% |
| AVTR | SELL | 2024-09-05 | 2024-09-06 | $25.06 | $177K | +7.3% | -0.9% | -17.4% |
| AVTR | SELL · 10b5-1 | 2024-03-08 | 2024-03-12 | $25.63 | $189K | +2.3% | +0.3% | -7.9% |
| AVTR | SELL | 2023-09-07 | 2023-09-07 | $20.64 | $313K | +5.0% | +1.1% | +1.5% |
| AVTR | SELL | 2021-08-26 | 2021-08-27 | $40.08 | $1.4M | +5.8% | +6.1% | +0.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.