Common Stock, Shares, Outstanding of Mersana Therapeutics, Inc. from 31 Dec 2016 to 30 Sep 2025

Taxonomy & unit
us-gaap: shares
Description
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
Summary
Mersana Therapeutics, Inc. quarterly Common Stock, Shares, Outstanding in shares history and change rate from 31 Dec 2016 to 30 Sep 2025.
  • Mersana Therapeutics, Inc. Common Stock, Shares, Outstanding for the quarter ending 30 Sep 2025 was 4,998,500, a 96% decline year-over-year.
Source SEC data
View on sec.gov
Common Stock, Shares, Outstanding, Quarterly (shares)
Common Stock, Shares, Outstanding, YoY Quarterly Change (%)

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

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q3 2025 4,998,500 -117,868,159 -96% 30 Sep 2025 10-Q 14 Nov 2025 2025 Q3
Q2 2025 4,990,692 -117,684,359 -96% 30 Jun 2025 10-Q 13 Aug 2025 2025 Q2
Q1 2025 124,631,339 +2,272,209 +1.9% 31 Mar 2025 10-Q 15 May 2025 2025 Q1
Q4 2024 4,626,010 -116,085,735 -96% 31 Dec 2024 10-Q 14 Nov 2025 2025 Q3
Q3 2024 122,866,659 +2,317,679 +1.9% 30 Sep 2024 10-Q 13 Nov 2024 2024 Q3
Q2 2024 122,675,051 +2,215,819 +1.8% 30 Jun 2024 10-Q 13 Aug 2024 2024 Q2
Q1 2024 122,359,130 +13,298,056 +12% 31 Mar 2024 10-Q 09 May 2024 2024 Q1
Q4 2023 120,711,745 +15,566,881 +15% 31 Dec 2023 10-K 03 Mar 2025 2024 FY
Q3 2023 120,548,980 +21,966,397 +22% 30 Sep 2023 10-Q 07 Nov 2023 2023 Q3
Q2 2023 120,459,232 +23,292,878 +24% 30 Jun 2023 10-Q 08 Aug 2023 2023 Q2
Q1 2023 109,061,074 +21,987,990 +25% 31 Mar 2023 10-Q 09 May 2023 2023 Q1
Q4 2022 105,144,864 +31,435,808 +43% 31 Dec 2022 10-K 28 Feb 2024 2023 FY
Q3 2022 98,582,583 +26,717,184 +37% 30 Sep 2022 10-Q 07 Nov 2022 2022 Q3
Q2 2022 97,166,354 +25,765,138 +36% 30 Jun 2022 10-Q 08 Aug 2022 2022 Q2
Q1 2022 87,073,084 +18,021,646 +26% 31 Mar 2022 10-Q 09 May 2022 2022 Q1
Q4 2021 73,709,056 +4,867,768 +7.1% 31 Dec 2021 10-K 28 Feb 2023 2022 FY
Q3 2021 71,865,399 +3,395,318 +5% 30 Sep 2021 10-Q 09 Nov 2021 2021 Q3
Q2 2021 71,401,216 +3,020,006 +4.4% 30 Jun 2021 10-Q 06 Aug 2021 2021 Q2
Q1 2021 69,051,438 +21,045,389 +44% 31 Mar 2021 10-Q 10 May 2021 2021 Q1
Q4 2020 68,841,288 +23,453,265 +52% 31 Dec 2020 10-K 28 Feb 2022 2021 FY
Q3 2020 68,470,081 +20,587,184 +43% 30 Sep 2020 10-Q 09 Nov 2020 2020 Q3
Q2 2020 68,381,210 +20,582,072 +43% 30 Jun 2020 10-Q 07 Aug 2020 2020 Q2
Q1 2020 48,006,049 +321,885 +0.68% 31 Mar 2020 10-Q 08 May 2020 2020 Q1
Q4 2019 45,388,023 +22,153,551 +95% 31 Dec 2019 10-K 26 Feb 2021 2020 FY
Q3 2019 47,882,897 +24,722,022 +107% 30 Sep 2019 10-Q 06 Nov 2019 2019 Q3
Q2 2019 47,799,138 +24,681,400 +107% 30 Jun 2019 10-Q 08 Aug 2019 2019 Q2
Q1 2019 47,684,164 +24,814,202 +109% 31 Mar 2019 10-Q 09 May 2019 2019 Q1
Q4 2018 23,234,472 +469,455 +2.1% 31 Dec 2018 10-K 28 Feb 2020 2019 FY
Q3 2018 23,160,875 +426,542 +1.9% 30 Sep 2018 10-Q 13 Nov 2018 2018 Q3
Q2 2018 23,117,738 +21,626,788 +1451% 30 Jun 2018 10-Q 14 Aug 2018 2018 Q2
Q1 2018 22,869,962 31 Mar 2018 10-Q 15 May 2018 2018 Q1
Q4 2017 22,765,017 +21,470,665 +1659% 31 Dec 2017 10-K 08 Mar 2019 2018 FY
Q3 2017 22,734,333 30 Sep 2017 10-Q 13 Nov 2017 2017 Q3
Q2 2017 1,490,950 30 Jun 2017 10-Q 11 Aug 2017 2017 Q2
Q4 2016 1,294,352 31 Dec 2016 10-K 28 Mar 2018 2017 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.