Brian Deschuytner

Companies

• Mersana Therapeutics (United States)Chief operating officer Sep 7, 2023 to now¹
• Mersana Therapeutics (United States)Chief financial officer Jan 19, 2022 to now²
• Mersana Therapeutics (United States)Sr. VP, Finance & Product Stgy Jul 12, 2019 to Jan 20, 2021³

Holdings

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

Shares held

• MTMersana Therapeutics (United States)0 shares⁴Jan 6, 2026

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

Recent filings

• Jan 6, 2026U 5,015 shares of Mersana Therapeutics (United States)⁴
• Jan 16, 2025Sold 8,470 shares at $0.58 of Mersana Therapeutics (United States)⁵
• Jan 15, 2025Exercised options 14,583 shares of Mersana Therapeutics (United States)⁵
• Jan 15, 2025Sold 2,331 shares at $0.63 of Mersana Therapeutics (United States)⁶
• Jan 15, 2025Exercised options 6,250 shares of Mersana Therapeutics (United States)⁵
• Jan 14, 2025Sold 3,713 shares at $0.66 of Mersana Therapeutics (United States)⁷
• Jan 14, 2025Exercised options 6,250 shares of Mersana Therapeutics (United States)⁶
• Jan 13, 2025Exercised options 10,000 shares of Mersana Therapeutics (United States)⁷
• Oct 3, 2024Sold 5,598 shares at $1.96 of Mersana Therapeutics (United States)⁸
• Oct 2, 2024Sold 8,089 shares at $2.00 of Mersana Therapeutics (United States)⁸
• Oct 1, 2024Exercised options 50,000 shares of Mersana Therapeutics (United States)⁸
• Jan 16, 2024Sold 9,327 shares at $2.71 of Mersana Therapeutics (United States)⁹
• Jan 15, 2024Exercised options 3,958 shares of Mersana Therapeutics (United States)⁹
• Jan 15, 2024Exercised options 6,250 shares of Mersana Therapeutics (United States)⁹
• Jan 14, 2024Exercised options 6,250 shares of Mersana Therapeutics (United States)⁹
• Jan 13, 2024Exercised options 10,000 shares of Mersana Therapeutics (United States)⁹
• Jan 17, 2023Sold 5,131 shares at $5.74 of Mersana Therapeutics (United States)¹⁰
• Jan 15, 2023Exercised options 3,958 shares of Mersana Therapeutics (United States)¹⁰
• Jan 15, 2023Exercised options 6,250 shares of Mersana Therapeutics (United States)¹⁰
• Jan 14, 2023Exercised options 6,250 shares of Mersana Therapeutics (United States)¹⁰
• Jan 14, 2022Exercised options 10,208 shares of Mersana Therapeutics (United States)¹¹