Entity Common Stock, Shares Outstanding of Mersana Therapeutics, Inc. from 10 Aug 2017 to 07 Nov 2025

Taxonomy & unit
dei: shares
Description
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.
Summary
Mersana Therapeutics, Inc. quarterly Entity Common Stock, Shares Outstanding in shares history and change rate from 10 Aug 2017 to 07 Nov 2025.
  • Mersana Therapeutics, Inc. Entity Common Stock, Shares Outstanding for the quarter ending 07 Nov 2025 was 4,998,750, a 96% decline year-over-year.
Source SEC data
View on sec.gov
Entity Common Stock, Shares Outstanding, Quarterly (shares)
Entity Common Stock, Shares Outstanding, YoY Quarterly Change (%)

Mersana Therapeutics, Inc. Quarterly Entity Common Stock, Shares Outstanding (shares)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q3 2025 4,998,750 -118,534,159 -96% 07 Nov 2025 10-Q 14 Nov 2025 2025 Q3
Q2 2025 4,990,692 -117,684,359 -96% 08 Aug 2025 10-Q 13 Aug 2025 2025 Q2
Q1 2025 124,631,339 +2,270,103 +1.9% 26 Feb 2025 10-K 03 Mar 2025 2024 FY
Q3 2024 123,532,909 +2,950,795 +2.4% 08 Nov 2024 10-Q 13 Nov 2024 2024 Q3
Q2 2024 122,675,051 +2,167,760 +1.8% 09 Aug 2024 10-Q 13 Aug 2024 2024 Q2
Q1 2024 122,361,236 +7,975,426 +7% 03 May 2024 10-Q 09 May 2024 2024 Q1
Q3 2023 120,582,114 +20,808,257 +21% 03 Nov 2023 10-Q 07 Nov 2023 2023 Q3
Q2 2023 120,507,291 +23,337,943 +24% 04 Aug 2023 10-Q 08 Aug 2023 2023 Q2
Q1 2023 114,385,810 +30,996,004 +37% 05 May 2023 10-Q 09 May 2023 2023 Q1
Q3 2022 99,773,857 +27,862,024 +39% 03 Nov 2022 10-Q 07 Nov 2022 2022 Q3
Q2 2022 97,169,348 +25,407,823 +35% 04 Aug 2022 10-Q 08 Aug 2022 2022 Q2
Q1 2022 83,389,806 +13,827,993 +20% 25 Feb 2022 10-K 28 Feb 2022 2021 FY
Q3 2021 71,911,833 +3,414,408 +5% 05 Nov 2021 10-Q 09 Nov 2021 2021 Q3
Q2 2021 71,761,525 +3,346,425 +4.9% 04 Aug 2021 10-Q 06 Aug 2021 2021 Q2
Q1 2021 69,561,813 +10,612,343 +18% 06 May 2021 10-Q 10 May 2021 2021 Q1
Q3 2020 68,497,425 +20,613,903 +43% 04 Nov 2020 10-Q 09 Nov 2020 2020 Q3
Q2 2020 68,415,100 +20,605,124 +43% 04 Aug 2020 10-Q 07 Aug 2020 2020 Q2
Q1 2020 58,949,470 +11,265,306 +24% 05 May 2020 10-Q 08 May 2020 2020 Q1
Q3 2019 47,883,522 +24,701,050 +107% 04 Nov 2019 10-Q 06 Nov 2019 2019 Q3
Q2 2019 47,809,976 +24,656,558 +106% 07 Aug 2019 10-Q 08 Aug 2019 2019 Q2
Q1 2019 47,684,164 +24,838,248 +109% 07 Mar 2019 10-K 08 Mar 2019 2018 FY
Q3 2018 23,182,472 +429,068 +1.9% 12 Nov 2018 10-Q 13 Nov 2018 2018 Q3
Q2 2018 23,153,418 +440,789 +1.9% 13 Aug 2018 10-Q 14 Aug 2018 2018 Q2
Q1 2018 22,845,916 20 Mar 2018 10-K 28 Mar 2018 2017 FY
Q3 2017 22,753,404 08 Nov 2017 10-Q 13 Nov 2017 2017 Q3
Q2 2017 22,712,629 10 Aug 2017 10-Q 11 Aug 2017 2017 Q2
* An asterisk sign (*) next to the value indicates that the value is likely invalid.