Newamsterdam Pharma Company N.V. (NAMS): Congress and insider trades
Who in Congress and inside the company traded NAMS, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Newamsterdam Pharma Company N.V. (NAMS) is a listed stock on NASDAQ.
- Insiders filed 0 open market buys worth $0 and 9 sells worth $20M, the latest filed 2026-09-09 (9 September 2026).
- Data as of 2026-09-29 (29 September 2026).
Insider trades in NAMS
as of 2026-09-09| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 9 Sep 2026 | Smither John W | sell | 1,600 | $25.32 | $40.5K | n/a |
| 25 Aug 2026 | Kastelein Johannes Jacob Piete | sell | 125,000 | $26.91 | $3.4M | n/a |
| 22 Jul 2026 | Kooij Louise Frederika | sell | 105,000 | $30.34 | $3.2M | n/a |
| 24 Jun 2026 | Kooij Louise Frederika | sell | 40,000 | $30.20 | $1.2M | n/a |
| 27 May 2026 | Kooij Louise Frederika | sell | 65,000 | $35.69 | $2.3M | n/a |
| 10 Mar 2026 | LANGE LOUIS G | sell | 28,186 | $29.41 | $829K | n/a |
| 9 Mar 2026 | Kastelein Johannes Jacob Piete | sell | 94,124 | $30.32 | $2.9M | n/a |
| 9 Mar 2026 | Kastelein Johannes Jacob Piete | sell | 104,467 | $30.30 | $3.2M | n/a |
| 9 Mar 2026 | Kastelein Johannes Jacob Piete | sell | 101,409 | $30.29 | $3.1M | n/a |
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Related pages
Frequently asked questions
Who has bought NAMS?
0 Congress buys by 0 members and 0 insider buys are on file. The tables on this page list every one.
Did buying NAMS after a disclosure beat the market?
No disclosed buy of this stock has matured 90 days yet. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.