83 transactions on file (0 open-market purchases and 2 open-market sales on this page).
| Date | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-09-04 | Smither John W Director Open-market sale | Open-market sale | −1,600 | $25.32 | −40.51K | 8,760 |
| 2026-09-01 | Gunning Robert William Vice President, Controller Grant / award | Grant / award | +3,200 | $0.00 | +0 | 3,200 |
| 2026-08-24 | Kastelein Johannes Jacob Pieter Chief Scientific Officer · Director Option exercise | Option exercise | +125,000 | - | - | 194,302 |
| 2026-08-24 | Kastelein Johannes Jacob Pieter Chief Scientific Officer · Director Open-market sale | Open-market sale | −125,000 | $26.91 | −3.36M | 69,302 |
| 2026-07-20 | Kooij Louise Frederika Chief Accounting Officer Option exercise | Option exercise | +25,000 | $11.90 | +297.5K | 49,353 |
78 more transactions are on Measure
The assistant answers from what NAMS has actually filed: 5 annual reports filed with the SEC, 79 Form 4 filings from the last year, 13F positions from the 2 tracked investors who hold it and 1 fund that holds it. Every figure in a reply links to the filing it came from, so an answer can be checked rather than believed.
Pressing one answers it here, from NAMS's filings and figures. One a day without an account; a free account has its own, and no card.
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Source
From SEC Form 4 filings, filed by officers, directors and 10%-owners within two business days of a transaction. “Indirect” holdings (a trust, an LLC, a family member) are included and not distinguished from direct ones in this table.
Past transactions say nothing about future ones, and none of this is investment advice.
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Every position they holdMeasure
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