Dannielle Appelhans

Filings by Dannielle Appelhans span 2 companies, the busiest being Rubius Therapeutics, Inc. and Generation Bio Co. The record holds 8 filings, for trades running from 9 August 2022 to 9 February 2026.

On the open market, the record shows 2 purchases worth €18k and 3 sales worth €6,597. On balance, insiders were net buyers of €11k. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Other entries cover 2 option exercises.

The newest entry dates from 9 February 2026: a transaction, in Generation Bio Co. The last insider purchase was made public on 11 December 2023, 1,048 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 3 days. US insiders must file a Form 4 within two business days of a trade. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.