A business in context

ALEC research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-22 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 8-K · Current report

    Report date 2026-10-15 · 0001193125-26-424204 · Items 1.01,8.01,9.01

  2. 4 · Ownership change

    Report date 2026-10-13 · 0001193125-26-422869

  3. 4 · Ownership change

    Report date 2026-10-14 · 0001193125-26-422868

  4. 4 · Ownership change

    Report date 2026-10-13 · 0001193125-26-422867

  5. 8-K · Current report

    Report date 2026-10-13 · 0001193125-26-421080 · Items 5.02

  6. 8-K · Current report

    Report date 2026-09-30 · 0001193125-26-413090 · Items 1.01,2.02,7.01,8.01,9.01

  7. 4 · Ownership change

    Report date 2026-09-02 · 0001193125-26-383858

  8. 4 · Ownership change

    Report date 2026-09-03 · 0001193125-26-383857

  9. 4 · Ownership change

    Report date 2026-09-03 · 0001193125-26-383856

  10. 4 · Ownership change

    Report date 2026-08-19 · 0001193125-26-361376

  11. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001193125-26-338052

  12. 8-K · Current report

    Report date 2026-08-06 · 0001193125-26-338008 · Items 2.02,9.01

  13. 4 · Ownership change

    Report date 2026-07-09 · 0001193125-26-299678

  14. 8-K · Current report

    Report date 2026-07-06 · 0001193125-26-298526 · Items 1.02

  15. 8-K · Current report

    Report date 2026-06-17 · 0001193125-26-274130 · Items 5.07

  16. 8-K · Current report

    Report date 2026-05-07 · 0001193125-26-212426 · Items 1.01,9.01

  17. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001193125-26-211981

  18. 8-K · Current report

    Report date 2026-05-07 · 0001193125-26-211918 · Items 2.02,9.01

  19. DEF 14A · Proxy statement

    Report date 2026-04-21 · 0001193125-26-186928

  20. 10-K · Annual report

    Report date 2025-12-31 · 0001193125-26-071593

  21. 8-K · Current report

    Report date 2026-02-25 · 0001193125-26-071557 · Items 2.02,9.01

  22. 8-K · Current report

    Report date 2025-12-10 · 0001193125-25-317554 · Items 5.02,9.01

  23. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001193125-25-269592

  24. 8-K · Current report

    Report date 2025-11-06 · 0001193125-25-269537 · Items 2.02,9.01

  25. 8-K · Current report

    Report date 2025-10-20 · 0001193125-25-245102 · Items 2.02,2.05,5.02,7.01,9.01

  26. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000950170-25-105050

  27. 8-K · Current report

    Report date 2025-08-07 · 0000950170-25-105023 · Items 2.02,9.01

  28. 8-K · Current report

    Report date 2025-06-09 · 0001193125-25-140731 · Items 5.02,5.07,9.01

  29. 10-Q · Quarterly report

    Report date 2025-03-31 · 0000950170-25-066987

  30. 8-K · Current report

    Report date 2025-05-08 · 0000950170-25-066945 · Items 2.02,9.01

  31. DEF 14A · Proxy statement

    Report date 2025-04-22 · 0000950170-25-057991

  32. 8-K · Current report

    Report date 2025-03-25 · 0000950170-25-046756 · Items 5.02

  33. 8-K · Current report

    Report date 2025-03-07 · 0001193125-25-050448 · Items 2.05

  34. 10-K · Annual report

    Report date 2024-12-31 · 0000950170-25-027758

  35. 8-K · Current report

    Report date 2025-02-26 · 0000950170-25-027734 · Items 2.02,9.01

  36. 8-K · Current report

    Report date 2025-01-09 · 0000950170-25-003811 · Items 8.01

  37. SC 13G · Ownership disclosure

    0001104659-24-126367

  38. 8-K · Current report

    Report date 2024-11-25 · 0000950170-24-130564 · Items 2.05,7.01,9.01

  39. 8-K · Current report

    Report date 2024-11-14 · 0000950170-24-127056 · Items 1.01,2.03,7.01,9.01

  40. SC 13G/A · Ownership disclosure

    0001193125-24-256187

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-15 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 5 transaction rows5SGrant / award: 1 transaction rows1AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 4 transaction rows4G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

10 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-04
2026-09-04
Wong-Sarad GraceS · Sale
Disposed
Common Stock3625.02.51
2026-09-03
2026-09-04
Wong-Sarad GraceS · Sale
Disposed
Common Stock5165.02.67
2026-09-03
2026-09-04
Rosenthal ArnonS · Sale
Disposed
Common Stock72606.02.66
2026-09-03
2026-09-04
Berkley Neil LindsayS · Sale
Disposed
Common Stock29251.02.66
2026-09-02
2026-09-04
Wong-Sarad GraceS · Sale
Disposed
Common Stock656.02.75
2026-08-19
2026-08-21
Rosenthal ArnonG · Gift
Acquired
Common Stock350000.00.0
2026-08-19
2026-08-21
Rosenthal ArnonG · Gift
Disposed
Common Stock1050000.00.0
2026-08-19
2026-08-21
Rosenthal ArnonG · Gift
Acquired
Common Stock350000.00.0
2026-08-19
2026-08-21
Rosenthal ArnonG · Gift
Acquired
Common Stock350000.00.0
2026-07-09
2026-07-09
Wong-Sarad GraceA · Grant / award
Acquired
Common Stock20000.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-10-15 · 1663 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001653087Alector, Inc.

No parent relationship is available in this import; this is not proof of independence.

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-10-15 · 1199 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Alector (United States) · alias · wikidata
  • Alector LLC · former SEC name · 2015-09-16 to 2015-09-16

Revenue in constant purchasing power

USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$100.56M$108.01M
2023-12-31$97.06M$107.32M
2022-12-31$133.62M$153.81M
2021-12-31$207.09M$257.46M
2020-12-31$21.10M$27.47M
2019-12-31$21.22M$27.96M
2018-12-31$27.51M$36.91M
2017-12-31$2.87M$3.95M

Bureau of Labor Statistics · retrieved 2026-10-22 · 9 selected series; gaps remain missing

Explore the CPI history ↗