Beth C. Seidenberg

Companies

• Latigo Biotherapeutics, Inc.Board member Aug 6, 2026 to now¹
• Kyverna Therapeutics, Inc.Board member Feb 7, 2024 to now²
• Sagimet Biosciences Inc.Board member Jul 13, 2023 to now³
• ACELYRIN, Inc.Board member May 4, 2023 to now⁴
• Vera Therapeutics, Inc.Board member May 13, 2021 to now⁵
• Progyny, Inc.Board member Oct 24, 2019 to May 28, 2024⁶
• Atara Biotherapeutics, Inc.Board member Oct 15, 2014 to Jun 2, 2023⁷
• Epizyme, Inc.Board member May 30, 2013 to Jul 2, 2019⁸
• TesaroBoard member Jun 27, 2012 to Jan 24, 2019⁹
• BioCryst PharmaceuticalsBoard member May 5, 2006 to May 17, 2010¹⁰

Holdings

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

Shares held

• LBLatigo Biotherapeutics, Inc. LTGO2,094,813 shares¹¹$30.9M at $14.76Aug 10, 2026
• Progyny, Inc. PGNY271,322 shares¹²$7.4M at $27.45May 28, 2024
• KTKyverna Therapeutics, Inc. KYTX891,044 shares¹³$5.3M at $5.97May 29, 2026
• VTVera Therapeutics, Inc. VERA135,565 shares¹⁴$3.9M at $28.43Oct 30, 2024
• SBSagimet Biosciences Inc. SGMT131,643 shares¹⁵$1.1M at $8.21Jul 18, 2023
• ABAtara Biotherapeutics, Inc. ATRA115,886 shares¹⁶$1.1M at $9.18Jun 2, 2023
• AACELYRIN, Inc.0 shares¹⁷May 21, 2025

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

Recent filings

• Aug 10, 2026Converted 2,066,857 shares of Latigo Biotherapeutics, Inc.¹¹
• Aug 10, 2026Converted 165,519 shares of Latigo Biotherapeutics, Inc.¹¹
• Aug 10, 2026Converted 1,484,401 shares of Latigo Biotherapeutics, Inc.¹¹
• Aug 10, 2026Converted 3,464,072 shares of Latigo Biotherapeutics, Inc.¹¹
• Aug 10, 2026Converted 1,027,635 shares of Latigo Biotherapeutics, Inc.¹¹
• Aug 10, 2026Converted 3,547,842 shares of Latigo Biotherapeutics, Inc.¹¹
• Aug 10, 2026Converted 938,979 shares of Latigo Biotherapeutics, Inc.¹¹
• May 27, 2026Granted 5,093 shares of Kyverna Therapeutics, Inc.¹³
• Dec 18, 2025Bought 133,333 shares at $7.50 of Kyverna Therapeutics, Inc.¹⁸
• May 29, 2025Granted 16,634 shares of Kyverna Therapeutics, Inc.¹⁹
• May 21, 2025Returned to company 9,790,729 shares of ACELYRIN, Inc.¹⁷
• May 21, 2025Returned to company 60,000 shares of ACELYRIN, Inc.¹⁷
• Oct 28, 2024Sold 202 shares at $49.54 of Vera Therapeutics, Inc.¹⁴
• Oct 28, 2024Sold 14,798 shares at $48.01 of Vera Therapeutics, Inc.¹⁴
• Sep 19, 2024Sold 13,823 shares at $42.31 of Vera Therapeutics, Inc.²⁰
• Sep 18, 2024Sold 1,476 shares at $42.00 of Vera Therapeutics, Inc.²⁰
• Sep 18, 2024Sold 1,177 shares at $42.01 of Vera Therapeutics, Inc.²⁰
• May 23, 2024Granted 7,206 shares of Progyny, Inc.¹²
• Feb 12, 2024Converted 735,984 shares of Kyverna Therapeutics, Inc.²¹
• Feb 12, 2024Converted 3,787,940 shares of Kyverna Therapeutics, Inc.²¹
• Jul 18, 2023Bought 46,875 shares at $16.00 of Sagimet Biosciences Inc.¹⁵
• Jul 18, 2023Converted 84,768 shares of Sagimet Biosciences Inc.¹⁵
• Jul 18, 2023Converted 1,860,712 shares of Sagimet Biosciences Inc.¹⁵
• Jul 18, 2023Granted 38,763 shares of Sagimet Biosciences Inc.¹⁵
• Jul 18, 2023Returned to company 38,763 shares of Sagimet Biosciences Inc.¹⁵