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Alector, Inc.: filings

Every Alector, Inc. annual and quarterly report in the SEC record with the published financial measures it tagged, 30 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-Q2026-08-06fiscal Q2 2026411190001193125-26-338052
10-Q2026-05-07fiscal Q1 202641870001193125-26-211981
10-K2026-02-25fiscal FY 2025501000001193125-26-071593
10-Q2025-11-06fiscal Q3 2025431290001193125-25-269592
10-Q2025-08-07fiscal Q2 2025421230000950170-25-105050
10-Q2025-05-08fiscal Q1 202542890000950170-25-066987
10-K2025-02-26fiscal FY 2024471190000950170-25-027758
10-Q2024-11-06fiscal Q3 2024391170000950170-24-122328
10-Q2024-08-07fiscal Q2 2024391130000950170-24-092814
10-Q2024-05-08fiscal Q1 202439830000950170-24-055682
10-K2024-02-27fiscal FY 2023441120000950170-24-021183
10-Q2023-11-07fiscal Q3 2023391170000950170-23-060270
10-Q2023-08-03fiscal Q2 2023391130000950170-23-038023
10-Q2023-05-04fiscal Q1 202339830000950170-23-017874
10-K2023-02-28fiscal FY 2022441130000950170-23-005111
10-Q2022-11-08fiscal Q3 2022391170000950170-22-023249
10-Q2022-08-04fiscal Q2 2022391130000950170-22-014810
10-Q2022-05-05fiscal Q1 202235750000950170-22-007846
10-K2022-02-24fiscal FY 2021401010000950170-22-001979
10-Q2021-11-04fiscal Q3 2021381130000950170-21-003082
10-Q2021-08-03fiscal Q2 202134930000950170-21-000725
10-Q2021-05-05fiscal Q1 202134730001564590-21-024062
10-K2021-02-25fiscal FY 2020401000001564590-21-008860
10-Q2020-11-10fiscal Q3 202033950001564590-20-052993
10-Q2020-08-11fiscal Q2 202034930001564590-20-039319
10-Q2020-05-13fiscal Q1 202034730001564590-20-025043
10-K2020-03-24fiscal FY 2019401240001564590-20-012520
10-Q2019-11-12fiscal Q3 2019391060001564590-19-042920
10-Q2019-08-12fiscal Q2 2019391020001564590-19-031488
10-Q2019-05-13fiscal Q1 201939800001564590-19-018837

Inspect the source

Entity
Alector, Inc. / CIK 0001653087
Captured
2026-09-21T17:22:04.624Z
SEC response SHA-256
00cc5549aceb94fb6d72b5c654bf6daafdd78209f65140e414b0f74d4daf5453

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/0001653087.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"])))