Clay B. Siegall

Companies

• Shattuck Labs, Inc.Board member Mar 8, 2024 to now¹
• Tourmaline Bio, Inc.Board member Dec 15, 2023 to now²
• Immunome Inc.Board member Oct 4, 2023 to now³
• Immunome Inc.Chief executive officer Oct 4, 2023 to now³
• Immunome Inc.President Oct 4, 2023 to now³
• SeagenBoard member Feb 1, 2006 to May 13, 2022⁴
• SeagenChief executive officer Feb 1, 2006 to May 13, 2022⁴
• SeagenPresident Feb 1, 2006 to May 13, 2022⁴
• Nurix (United States)Board member Jun 1, 2021 to May 6, 2022⁵
• Ultragenyx Pharmaceutical Inc.Board member Jan 30, 2014 to Aug 11, 2020⁶
• SeagenOfficer Aug 13, 2018 to Sep 4, 2019⁷
• SYNLOGIC, INC.Board member Sep 30, 2015 to Sep 6, 2016⁸

Holdings

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

Shares held

• IImmunome Inc. IMNM870,704 shares⁹$15.2M at $17.40Jul 23, 2026
• SLShattuck Labs, Inc. STTK318,608 shares¹⁰$1.7M at $5.45Jun 9, 2026
• Seagen SGEN666,060 shares¹¹May 12, 2022

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

Recent filings

• Jul 23, 2026Granted 180,000 shares of Immunome Inc.⁹
• Jun 9, 2026Bought 62,500 shares at $4.00 of Shattuck Labs, Inc.¹⁰
• May 22, 2026Granted 128,054 shares at $1.08 of Shattuck Labs, Inc.¹²
• Mar 27, 2026Bought 25,450 shares at $19.67 of Immunome Inc.¹³
• Dec 30, 2025Bought 4,729 shares at $21.15 of Immunome Inc.¹⁴
• Dec 19, 2025Gift 200,000 shares of Immunome Inc.¹⁵
• Dec 19, 2025Bought 7,278 shares at $20.48 of Immunome Inc.¹⁵
• Dec 18, 2025Bought 46,511 shares at $21.50 of Immunome Inc.¹⁶
• Aug 25, 2025Granted 128,054 shares at $0.87 of Shattuck Labs, Inc.¹⁷
• Mar 26, 2025Bought 137,100 shares at $7.29 of Immunome Inc.¹⁸
• Jan 31, 2025Bought 150,000 shares at $7.75 of Immunome Inc.¹⁹
• Nov 22, 2024Bought 33,943 shares at $9.78 of Immunome Inc.²⁰
• Nov 21, 2024Bought 66,057 shares at $9.54 of Immunome Inc.²⁰
• May 21, 2024Bought 20,434 shares at $13.78 of Immunome Inc.²¹
• May 20, 2024Bought 79,566 shares at $13.91 of Immunome Inc.²¹
• Oct 2, 2023Bought 169,204 shares at $5.91 of Immunome Inc.²²
• May 12, 2022Sold 10,593 shares at $125.39 of Seagen¹¹
• May 12, 2022Exercised options 10,593 shares at $26.10 of Seagen¹¹
• May 12, 2022Sold 6,450 shares at $126.18 of Seagen¹¹
• May 12, 2022Exercised options 6,450 shares at $26.10 of Seagen¹¹
• Apr 20, 2022Sold 1,885 shares at $144.32 of Seagen²³
• Apr 7, 2022Sold 474 shares at $157.23 of Seagen²⁴
• Apr 7, 2022Exercised options 474 shares at $26.10 of Seagen²⁴
• Apr 7, 2022Sold 1,900 shares at $156.48 of Seagen²⁴
• Apr 7, 2022Exercised options 1,900 shares at $26.10 of Seagen²⁴