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Mersana Therapeutics, Inc.: filings

Every Mersana Therapeutics, Inc. annual and quarterly report in the SEC record with the published financial measures it tagged, 34 filings, each linked to its SEC index.

Filings with published measures

Each page shows what one filing reported, as tagged in that filing, with the periods it covered. Later filings can restate a value; the company overview shows the latest-filed value per period.

FormFiledFiscal periodMeasuresFactsSEC accession
10-Q2025-11-14fiscal Q3 2025451340001628280-25-052202
10-Q2025-08-13fiscal Q2 2025421200001628280-25-040017
10-Q2025-05-15fiscal Q1 202540860001628280-25-025679
10-K2025-03-03fiscal FY 2024471240001628280-25-009246
10-Q2024-11-13fiscal Q3 2024441320001628280-24-047441
10-Q2024-08-13fiscal Q2 2024421200001628280-24-036864
10-Q2024-05-09fiscal Q1 202442900001628280-24-021985
10-K2024-02-28fiscal FY 2023471230001628280-24-007407
10-Q2023-11-07fiscal Q3 2023431260001628280-23-037193
10-Q2023-08-08fiscal Q2 2023431220001628280-23-027989
10-Q2023-05-09fiscal Q1 202343920001628280-23-016643
10-K2023-02-28fiscal FY 2022471230001628280-23-005376
10-Q2022-11-07fiscal Q3 2022411220001628280-22-028551
10-Q2022-08-08fiscal Q2 2022411180001628280-22-021627
10-Q2022-05-09fiscal Q1 202238820001628280-22-013191
10-K2022-02-28fiscal FY 2021451190001628280-22-004101
10-Q2021-11-09fiscal Q3 2021401200001628280-21-022420
10-Q2021-08-06fiscal Q2 2021401180001628280-21-016000
10-Q2021-05-10fiscal Q1 202141920001628280-21-009717
10-K2021-02-26fiscal FY 2020451860001628280-21-003370
10-Q2020-11-09fiscal Q3 2020411170001628280-20-016044
10-Q2020-08-07fiscal Q2 2020421220001628280-20-012099
10-Q2020-05-08fiscal Q1 202043920001558370-20-005892
10-K2020-02-28fiscal FY 2019501750001558370-20-001726
10-Q2019-11-06fiscal Q3 2019411090001558370-19-010082
10-Q2019-08-08fiscal Q2 2019461260001558370-19-007600
10-Q2019-05-09fiscal Q1 201943930001558370-19-004673
10-K2019-03-08fiscal FY 2018381480001558370-19-001720
10-Q2018-11-13fiscal Q3 201834890001558370-18-009290
10-Q2018-08-14fiscal Q2 201833870001558370-18-007081
10-Q2018-05-15fiscal Q1 201833710001558370-18-004791
10-K2018-03-28fiscal FY 2017401610001558370-18-002479
10-Q2017-11-13fiscal Q3 201730760001558370-17-008761
10-Q2017-08-11fiscal Q2 201730760001558370-17-006537

Inspect the source

Entity
Mersana Therapeutics, Inc. / CIK 0001442836
Captured
2026-09-21T17:19:06.893Z
SEC response SHA-256
e23cfdb1ac36facb6d0328329e147d7bf612bf4e43d42241b5307d096dd3d0bd

Current SEC company facts · Download the original response snapshot (gzip) · Download the selected JSON

Every published concept a filing tagged, with the periods it covered, as reported in that filing at capture time. Forms 10-K, 10-K/A, 10-Q, 10-Q/A, 20-F, 20-F/A, 40-F, 40-F/A. A filing page needs at least 8 published concepts. Later filings can restate these values; the company history pages show the latest-filed value per period.

Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.

Use this in research

A financial period ends before its results become public. Use the filing date as a minimum availability boundary, inspect amendments, and retain the original filing vintage when testing historical signals. This latest-filed selection can contain information unavailable at the time.

These pages do not supply prices, total-return histories, corporate-action adjustments or a tradable universe. Build those inputs separately before evaluating a strategy. A profitable backtest can still reflect selection bias or costs that were left out.

Research methodology · Execution and cost assumptions · Check backtest overfitting

Build with the open-source tools

Use these accounting records as inspectable inputs. When you have constructed a return series, the validation tools can help test its statistical evidence and preserve the result with its limitations.

Read the published dataset with Python
import json
from urllib.request import urlopen

with urlopen("https://canlicapital.com/company-data/0001442836.json") as response:
    record = json.load(response)
print(record["fetched_at"])
print(record["policy"])
for concept in record["concepts"]:
    print(concept["tag"], next(iter(concept["observations"])))