Steven L. Basta

Companies

• Phathom Pharmaceuticals, Inc.Board member Apr 3, 2025 to now¹
• Phathom Pharmaceuticals, Inc.Chief executive officer Apr 3, 2025 to now¹
• Phathom Pharmaceuticals, Inc.President Apr 3, 2025 to now¹
• Yarrow Bioscience, Inc.Board member Jan 24, 2018 to now²
• VIVEVE MEDICAL, INC.Board member Sep 13, 2018 to Jan 5, 2023³
• Yarrow Bioscience, Inc.Chief executive officer Jan 24, 2018 to Dec 16, 2019²
• Yarrow Bioscience, Inc.Officer Jul 31, 2019 to Jul 31, 2019⁴
• KalVista Pharmaceuticals, Inc.Board member Apr 8, 2015 to Nov 22, 2016⁵

Holdings

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

Shares held

• PPPhathom Pharmaceuticals, Inc. PHAT373,315 shares⁶$2.6M at $7.03Feb 10, 2026
• VMVIVEVE MEDICAL, INC.25 shares⁷Dec 15, 2021

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

Recent filings

• Feb 10, 2026Shares withheld for tax 6,277 shares at $12.82 of Phathom Pharmaceuticals, Inc.⁶
• Feb 10, 2026Granted 12,362 shares of Phathom Pharmaceuticals, Inc.⁶
• Jan 2, 2026Granted 251,034 shares of Phathom Pharmaceuticals, Inc.⁸
• Dec 17, 2025Shares withheld for tax 31,502 shares at $15.36 of Phathom Pharmaceuticals, Inc.⁹
• Dec 17, 2025Granted 62,038 shares of Phathom Pharmaceuticals, Inc.⁹
• Nov 28, 2025Shares withheld for tax 48,375 shares at $15.62 of Phathom Pharmaceuticals, Inc.¹⁰
• Nov 28, 2025Exercised options 90,000 shares of Phathom Pharmaceuticals, Inc.¹⁰
• Sep 25, 2025Shares withheld for tax 48,375 shares at $11.66 of Phathom Pharmaceuticals, Inc.¹¹
• Sep 25, 2025Exercised options 90,000 shares of Phathom Pharmaceuticals, Inc.¹¹
• Dec 15, 2021Returned to company 28 shares at $1.41 of VIVEVE MEDICAL, INC.⁷