MERSANA THERAPEUTICS INC (MRSN) Stock Ownership

USA • Nasdaq • NASDAQ:MRSN • US59045L2051

29.08 USD
+0.04 (+0.14%)
At close: Jan 5, 2026
29.3 USD
+0.22 (+0.76%)
After Hours: 1/5/2026, 8:00:00 PM
MRSN Ownership Chart.MRSN Ownership Chart: showing Insider, Institutional ownership and shares available to the public.MRSN Ownership.InsiderInstitutionalPublic



Shares Outstanding5.00M
Float4.92M
Float Short Interest PercentageN/A
Owners (insider)1.61%
Owners (institutional)67.26%
Owners (insider) change-0.15%
Owners (institutional) change-80.07%
MRSN Institutional Ownership HistoryMRSN Institutional Ownership HistoryMRSN Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 20M 40M 60M 80M 100M
MRSN Historical Insider Transactions ChartMRSN Historical Insider Buy and Sell Transactions ChartMRSN Historical Insider Transactions Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 0 -100K -200K -300K -400K
Date Name Type Shares Price Amount
Jan 6, 2026 Bala Mohan Other Disposition 2927 $ 0.00
Jan 6, 2026 Alleva Lawrence M Other Disposition 662 $ 0.00
Jan 6, 2026 Huber Martin H. Jr. Other Disposition 9573 $ 0.00
Jan 6, 2026 Hack Andrew A. F. Other Disposition 347123 $ 0.00
Jan 6, 2026 Mandelia Ashish Other Disposition 2300 $ 0.00
Jan 6, 2026 Protopapas Anna Other Disposition 19220 $ 0.00
Jan 6, 2026 Lowinger Timothy B Other Disposition 10466 $ 0.00
Jan 6, 2026 MOTT DAVID M Other Disposition 23929 $ 0.00
Jan 6, 2026 DeSchuytner Brian Other Disposition 5015 $ 0.00
Jan 6, 2026 Hege Kristen Other Disposition 578 $ 0.00
Jan 6, 2026 Diaz Allene M. Other Disposition 578 $ 0.00
Jan 6, 2026 Dere Willard H Other Disposition 1567 $ 0.00
Jan 6, 2026 Carvajal Alejandra Other Disposition 3131 $ 0.00
Oct 27, 2025 Bala Mohan Open Market Sale 77 9.90 $ 762.30
Oct 25, 2025 Bala Mohan Option Excercise 250 0.00 $ 0.00
Sep 12, 2025 Huber Martin H. Jr. Open Market Sale 2012 7.31 $ 14,707.72
Sep 11, 2025 Huber Martin H. Jr. Option Excercise 6670 0.00 $ 0.00