James Topper

James Topper is recorded as Board Member at Phathom Pharmaceuticals, Inc. (PHAT). The newest filing on record that lists James Topper as Board Member at Phathom Pharmaceuticals, Inc. (PHAT) is dated April 7, 2026. Earlier roles on record: Chairman and Board Member at Anaptysbio, Inc (ANAB) until September 15, 2023. Anaptysbio, Inc reported in an 8-K filed September 18, 2023 that James Topper resigned as Class II director, effective September 15, 2023. Anaptysbio, Inc reported in an 8-K filed September 18, 2023 that James Topper resigned as Chairman of the Board, effective September 15, 2023. Phathom Pharmaceuticals, Inc. is classified in the Biotechnology industry within the Healthcare sector. Other leadership on record at Phathom Pharmaceuticals, Inc. includes Steven Basta (CEO and Board Member), Steven L. Basta (CEO and Board Member), Anthony Guzzo (CFO and Chief Accounting Officer) and 7 others.