William E. Duke

This profile gathers the share dealings of William E. Duke across 2 companies, led by Apexigen, Inc. and Invivyd, Inc. Between 7 October 2022 and 18 August 2026, the trades on record add up to 10 filings.

On the market, this insider has only sold: 2 sales, €27k in total. The rest of the record consists of 5 share grants and 3 option exercises. In 2026 alone, the filings show no purchases and 2 sales.

The record was last updated on 18 August 2026 with an option exercise in Invivyd, Inc. Typically, a trade is published a median of 3 days after it takes place. Section 16 rules allow two business days to file each Form 4. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.