Karin L. Walker

Companies

• PROTHENA CORP PUBLIC LTD COOfficer May 22, 2013 to now¹
• CyclacelBoard member Nov 12, 2020 to Jul 3, 2023²
• Vincerx Pharma, Inc.Board member Mar 9, 2020 to Mar 9, 2020³

Holdings

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

Shares held

• PPPROTHENA CORP PUBLIC LTD CO PRTA10,000 shares⁴$84.6K at $8.46Jul 28, 2026
• CCyclacel BGMS40,602 shares⁵$37.5K at $0.92Jun 30, 2023

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

Recent filings

• Jul 28, 2026Returned to company 15,000 shares at $8.56 of PROTHENA CORP PUBLIC LTD CO⁴
• Jul 28, 2026Exercised options 15,000 shares of PROTHENA CORP PUBLIC LTD CO⁴
• Jul 28, 2025Granted 25,000 shares of PROTHENA CORP PUBLIC LTD CO⁶
• Jan 24, 2024Sold 5,000 shares at $34.00 of PROTHENA CORP PUBLIC LTD CO⁷
• Jan 24, 2024Exercised options 5,000 shares at $13.53 of PROTHENA CORP PUBLIC LTD CO⁷
• Dec 20, 2023Sold 3,322 shares at $37.45 of PROTHENA CORP PUBLIC LTD CO⁸
• Dec 20, 2023Sold 1,678 shares at $36.68 of PROTHENA CORP PUBLIC LTD CO⁸
• Dec 20, 2023Exercised options 5,000 shares at $13.53 of PROTHENA CORP PUBLIC LTD CO⁸
• Nov 30, 2023Sold 5,000 shares at $34.00 of PROTHENA CORP PUBLIC LTD CO⁹
• Nov 30, 2023Exercised options 5,000 shares at $13.53 of PROTHENA CORP PUBLIC LTD CO⁹
• Oct 25, 2023Sold 294 shares at $42.28 of PROTHENA CORP PUBLIC LTD CO¹⁰
• Oct 25, 2023Sold 2,917 shares at $41.38 of PROTHENA CORP PUBLIC LTD CO¹⁰
• Oct 25, 2023Sold 1,789 shares at $40.27 of PROTHENA CORP PUBLIC LTD CO¹⁰
• Oct 25, 2023Exercised options 5,000 shares at $13.53 of PROTHENA CORP PUBLIC LTD CO¹⁰
• Sep 19, 2023Sold 5,000 shares at $52.36 of PROTHENA CORP PUBLIC LTD CO¹¹
• Sep 19, 2023Exercised options 5,000 shares at $15.04 of PROTHENA CORP PUBLIC LTD CO¹¹
• Aug 18, 2023Sold 5,000 shares at $57.18 of PROTHENA CORP PUBLIC LTD CO¹²
• Aug 18, 2023Exercised options 5,000 shares at $15.04 of PROTHENA CORP PUBLIC LTD CO¹²
• Jul 19, 2023Sold 1,034 shares at $70.08 of PROTHENA CORP PUBLIC LTD CO¹³
• Jul 19, 2023Sold 3,966 shares at $68.96 of PROTHENA CORP PUBLIC LTD CO¹³
• Jul 19, 2023Exercised options 5,000 shares at $15.04 of PROTHENA CORP PUBLIC LTD CO¹³
• Jun 30, 2023Granted 21,219 shares of Cyclacel⁵
• Jun 20, 2023Sold 529 shares at $69.99 of PROTHENA CORP PUBLIC LTD CO¹⁴
• Jun 20, 2023Sold 2,471 shares at $69.49 of PROTHENA CORP PUBLIC LTD CO¹⁴
• Jun 20, 2023Sold 2,000 shares at $67.88 of PROTHENA CORP PUBLIC LTD CO¹⁴