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Total declarations
Companies
▲ Purchases (4 ops.)
▼ Sales (1 ops.)
Latest filing published 15 Sept 2026 for NewAmsterdam Pharma Co N.V., €195k. Read the official filing
Filing timeline
BuySaleMichael H. Davidson
Insider track record
Disclosed buys
4
Disclosed sells
1
T+90 hit rate
100%
T+90 mean return
+34.3%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Michael H. Davidson: trading record in brief
Michael H. Davidson, listed as board member, has filed trades across 3 companies (mainly through SEC (Form 4)), most often in NewAmsterdam Pharma Co N.V., Tenax Therapeutics, Inc. and Lisata Therapeutics, Inc. In total, 11 filings cover trades dated from 11 June 2021 to 14 September 2026.
The open-market side counts 4 purchases for €349k alongside 1 sale. The totals do not cover 2 filings with an undisclosed amount. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. The rest of the record consists of 4 share grants and 2 option exercises. Since January 2026: 1 purchase and 1 sale on the market.
Half of the purchases are above €81k and half below. The 4 purchases reviewed show no overlap with other insiders buying the same stock within a month.
The latest filing, published on 15 September 2026, reports an open-market purchase of €195k in NewAmsterdam Pharma Co N.V. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. US insiders must file a Form 4 within two business days of a trade. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Companies and markets linked to Michael H. Davidson
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations11 total
10,000 shares@ US$22.65Ordinary SharesSEC:0001193125-26-391985:0
Canonical exit: 13 Dec 2026 (T+90)
443,707 sharesOrdinary SharesSEC:0001193125-26-085947:0
64,708 sharesOrdinary SharesSEC:0001193125-26-078718:0
11,582 sharesOrdinary SharesSEC:0001193125-26-009272:0
30,992 shares0Ordinary SharesSEC:0000950170-25-046934:0
123,529 sharesOrdinary SharesSEC:0000950170-25-003022:0
5,000 shares@ US$16.2747.6% of flowOrdinary SharesSEC:0000950170-24-099871:0
Canonical exit: 18 Nov 2024 (T+90)
2,500 sharesCommon StockSEC:0001654954-24-010192:0
Canonical exit: 6 Nov 2024 (T+90)
5,000 shares@ US$17.261752.4% of flowOrdinary SharesSEC:0000950170-24-076468:0
Canonical exit: 18 Sept 2024 (T+90)
65,430 shares0Common StockSEC:0001573785-22-000002:0
512,000 sharesCommon StockSEC:0001654954-21-006926:0
11 of 11 declarations
