William Enright

Officer, Altimmune, Inc.

Companies

BullFrog AI Holdings, Inc.Board member May 9, 2023 to now¹
Barinthus Biotherapeutics plc.Board member Apr 29, 2021 to now²
Barinthus Biotherapeutics plc.Chief executive officer Apr 29, 2021 to now²
Altimmune, Inc.Chief executive officer Aug 18, 2017 to May 29, 2018³
Altimmune, Inc.President Aug 18, 2017 to May 29, 2018³
Altimmune, Inc.Board member May 8, 2017 to May 29, 2018⁴
Altimmune, Inc.Officer May 8, 2017 to May 8, 2017⁴

Holdings

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

Shares held

BullFrog AI Holdings, Inc. BFRG13,523 shares⁵$7.3K at $0.54Aug 22, 2025
Barinthus Biotherapeutics plc.0 shares⁶Sep 9, 2026

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

Recent filings

Sep 9, 2026Returned to company 514,923 shares of Barinthus Biotherapeutics plc.⁶
Sep 9, 2026Returned to company 728,454 shares of Barinthus Biotherapeutics plc.⁶
Aug 22, 2025Granted 2,813 shares of BullFrog AI Holdings, Inc.⁵
Aug 22, 2025Granted 5,710 shares of BullFrog AI Holdings, Inc.⁵
Jun 14, 2023Bought 5,000 shares at $4.05 of BullFrog AI Holdings, Inc.⁷
Mar 27, 2023Sold 15,000 shares at $2.42 of Barinthus Biotherapeutics plc.⁸

Sources

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

1
SEC EDGARBullFrog AI Holdings, Inc., Board member
2
SEC EDGARBarinthus Biotherapeutics plc., Board member
3
SEC EDGARAltimmune, Inc., Chief executive officer
4
SEC EDGARAltimmune, Inc., Board member
5
SEC EDGARBullFrog AI Holdings, Inc. shares after the filing of Aug 22, 2025
6
SEC EDGARBarinthus Biotherapeutics plc. shares after the filing of Sep 9, 2026
7
SEC EDGARForm 4 filed Jun 15, 2023
8
SEC EDGARForm 4 filed Mar 29, 2023