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Total declarations
Company
▲ Purchases (2 ops.)
▼ Sales (0 ops.)
Latest filing published 09 Feb 2026 for Generation Bio Co.. Read the official filing
Filing timeline
BuySaleDonald William Nicholson
Insider track record
Disclosed buys
2
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Donald William Nicholson: trading record in brief
All filings by Donald William Nicholson on record concern Generation Bio Co., in the capacity of board member. The record holds 3 filings, for trades running from 9 March 2022 to 9 February 2026.
The open-market record is one-sided, with 2 purchases worth €142k and not one sale. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket.
The record was last updated on 9 February 2026 with a transaction in Generation Bio Co. The latest purchase dates back some time: it was published 1,048 days ago, on 5 December 2023. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Companies and markets linked to Donald William Nicholson
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations3 total
21,357 sharesCommon StockSEC:0001104659-26-012193:0
100,000 shares@ US$1.4492.9% of flowCommon StockSEC:0001415889-23-015856:0
Canonical exit: 29 Feb 2024 (T+90)
2,293 shares@ US$4.797.1% of flowCommon StockSEC:0001415889-22-002899:0
Canonical exit: 7 Jun 2022 (T+90)
3 of 3 declarations
