Jacquelyn L. Sumer

Companies

• Cullinan OncologyGeneral counsel Aug 16, 2022 to now¹
• Genocea (United States)General counsel Feb 23, 2021 to Jun 2, 2022²

Holdings

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

Shares held

• COCullinan Oncology CGEM130,559 shares³$1.7M at $12.93Jun 30, 2026
• GUGenocea (United States)43,000 shares⁴Jun 1, 2022

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

Recent filings

• Jun 30, 2026Granted 2,470 shares at $8.60 of Cullinan Oncology³
• Feb 24, 2026Sold 3,601 shares at $14.47 of Cullinan Oncology⁵
• Feb 20, 2026Sold 3,742 shares at $13.62 of Cullinan Oncology⁶
• Dec 18, 2025Sold 3,480 shares at $9.67 of Cullinan Oncology⁷
• Feb 25, 2025Sold 3,756 shares at $8.53 of Cullinan Oncology⁸
• Feb 19, 2025Granted 50,000 shares of Cullinan Oncology⁹
• Dec 18, 2024Sold 3,482 shares at $11.41 of Cullinan Oncology¹⁰
• Feb 22, 2024Granted 50,000 shares of Cullinan Oncology¹¹
• Dec 21, 2023Sold 1,400 shares at $8.50 of Cullinan Oncology¹²
• Dec 18, 2023Sold 290 shares at $8.22 of Cullinan Oncology¹³
• Jun 20, 2023Sold 291 shares at $12.94 of Cullinan Oncology¹⁴
• May 18, 2023Sold 291 shares at $8.76 of Cullinan Oncology¹⁵
• Apr 18, 2023Sold 290 shares at $10.71 of Cullinan Oncology¹⁶
• Mar 20, 2023Sold 305 shares at $11.32 of Cullinan Oncology¹⁷
• Feb 17, 2023Granted 47,000 shares of Cullinan Oncology¹⁸
• Jun 1, 2022Sold 2,500 shares at $0.06 of Genocea (United States)⁴
• Mar 15, 2022Granted 37,500 shares of Genocea (United States)¹⁹