Historical shareholding details of Wellington Management Company LLP holdings in Mersana Therapeutics Inc (MRSN)

Monthly changes of Wellington Management Company LLP shareholding in Mersana Therapeutics Inc over the previous months

Month Name Total no. shares held Percent Holding
Mar 31, 2025 Wellington Management Company Llp 98,945 0.08%
Feb 28, 2025 Wellington Management Company Llp 98,945 0.08%
Jan 31, 2025 Wellington Management Company Llp 106,362 0.09%
Dec 31, 2024 Wellington Management Company Llp 576,148 0.46%
Dec 31, 2024 Wellington Management Company Llp 106,362 0.09%
Nov 30, 2024 Wellington Management Company Llp 106,362 0.09%
Oct 31, 2024 Wellington Management Company Llp 92,821 0.08%
Sep 30, 2024 Wellington Management Company Llp 618,305 0.50%
Sep 30, 2024 Wellington Management Company Llp 92,821 0.08%
Aug 31, 2024 Wellington Management Company Llp 92,821 0.08%
Jul 31, 2024 Wellington Management Company Llp 86,914 0.07%
Jun 30, 2024 Wellington Management Company Llp 532,866 0.43%
Jun 30, 2024 Wellington Management Company Llp 86,914 0.07%
May 31, 2024 Wellington Management Company Llp 86,914 0.07%
Mar 31, 2024 Wellington Management Company Llp 534,618 0.44%
Dec 31, 2023 Wellington Management Company Llp 0 0.00%
Nov 30, 2023 Wellington Management Company Llp 0 0.00%
Oct 31, 2023 Wellington Management Company Llp 0 0.00%
Sep 30, 2023 Wellington Management Company Llp 0 0.00%
Aug 31, 2023 Wellington Management Company Llp 0 0.00%
Jul 31, 2023 Wellington Management Company Llp 0 0.00%
Jun 30, 2023 Wellington Management Company Llp 0 0.00%
May 31, 2023 Wellington Management Company Llp 0 0.00%

View all ownership details of Mersana Therapeutics Inc