Davidson Michael H. insider trades
Davidson Michael H. has filed 20 Form 4s with the SEC that we hold, for NewAmsterdam Pharma Co N.V. (NAMS) (Chief Executive Officer, Director), Tenax Therapeutics, INC. (TENX) (Director), BioAge Labs, Inc. (BIOA) (Director) and Lisata Therapeutics, INC. (CLBS) (Director), among 5 companies in all. Across all of them we count 4 purchases worth $394.1K and 10 sales worth $25.3M reported on Form 4. In the last 12 months: 1 purchase ($226.5K) and 9 sales ($25.3M). The largest single trade was a sale of 443,707 shares of NewAmsterdam Pharma Co N.V. worth $14.8M, dated 2026-03-02. The first filing on our record is dated 2022-01-12 and the latest 2026-09-15.
NewAmsterdam Pharma Co N.V. (NAMS)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2024-06-20 | P, purchase reported on Form 4 | 5,000 | $86.3K | 2024-06-24 |
| 2024-08-20 | P, purchase reported on Form 4 | 5,000 | $81.3K | 2024-08-22 |
| 2025-03-26 | S, sale reported on Form 4 | 12,258 | - | 2025-03-28 |
| 2026-01-07 | S, sale reported on Form 4 | 11,582 | - | 2026-01-09 |
| 2026-02-24 | S, sale reported on Form 4 | 61,547 | $2.2M | 2026-02-26 |
| 2026-02-24 | S, sale reported on Form 4 | 3,161 | $115.3K | 2026-02-26 |
| 2026-02-25 | S, sale reported on Form 4 | 46,517 | $1.6M | 2026-02-26 |
| 2026-02-25 | S, sale reported on Form 4 | 10,436 | $375.3K | 2026-02-26 |
| 2026-02-25 | S, sale reported on Form 4 | 1,300 | $47.7K | 2026-02-26 |
| 2026-02-26 | S, sale reported on Form 4 | 165,408 | $5.6M | 2026-02-26 |
| 2026-02-26 | S, sale reported on Form 4 | 17,924 | $617.3K | 2026-02-26 |
| 2026-03-02 | S, sale reported on Form 4 | 443,707 | $14.8M | 2026-03-02 |
| 2026-09-14 | P, purchase reported on Form 4 | 10,000 | $226.5K | 2026-09-15 |
Tenax Therapeutics, INC. (TENX)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2024-08-08 | P, purchase reported on Form 4 | 2,500 | - | 2024-08-08 |
BioAge Labs, Inc. (BIOA)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Lisata Therapeutics, INC. (CLBS)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Silence Therapeutics plc (SLN)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Counted from the Form 4 filings this reporting owner (SEC CIK 1573785) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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