Dannielle Appelhans

Chief Operating Officer, Rubius Therapeutics (United States).

Companies

Halozyme TherapeuticsBoard member Aug 21, 2026 to now¹
Generation Bio Co.Board member Jul 19, 2022 to now²
Rubius Therapeutics (United States)Chief executive officer Feb 1, 2023 to Feb 27, 2023³
Rubius Therapeutics (United States)President Feb 1, 2023 to Feb 27, 2023³
Rubius Therapeutics (United States)Chief operating officer Aug 16, 2021 to Aug 12, 2022⁴

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

As of each latest filing. The line shows shares held over time.

Sep 1, 2026Granted 1,161 shares of Halozyme Therapeutics⁵
Feb 9, 2026U 736 shares of Generation Bio Co.⁷
Feb 9, 2026U 1,263 shares of Generation Bio Co.⁷
Dec 8, 2023Bought 7,363 shares at $1.79 of Generation Bio Co.⁸
Dec 8, 2023Bought 637 shares at $1.82 of Generation Bio Co.⁸
Dec 4, 2023Bought 12,000 shares at $1.50 of Generation Bio Co.⁹
Feb 24, 2023Sold 10,385 shares at $0.13 of Rubius Therapeutics (United States)⁶
Feb 1, 2023Sold 3,878 shares at $0.25 of Rubius Therapeutics (United States)¹⁰
Jan 31, 2023Exercised options 7,500 shares of Rubius Therapeutics (United States)¹⁰
Aug 10, 2022Sold 5,737 shares at $0.80 of Rubius Therapeutics (United States)¹¹
Aug 9, 2022Exercised options 12,500 shares of Rubius Therapeutics (United States)¹¹

The numbers on this page point here. Each one links to the record it came from.