A business in context

KRRO research notebook

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

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-20 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 8-K · Current report

    Report date 2026-10-05 · 0001193125-26-414118 · Items 8.01,9.01

  2. 4 · Ownership change

    Report date 2026-09-11 · 0001030575-26-000014

  3. 4 · Ownership change

    Report date 2026-09-11 · 0001193125-26-390556

  4. 4 · Ownership change

    Report date 2026-09-08 · 0001193125-26-387852

  5. 4 · Ownership change

    Report date 2026-08-26 · 0001030575-26-000012

  6. 4 · Ownership change

    Report date 2026-08-19 · 0001030575-26-000010

  7. 8-K · Current report

    Report date 2026-08-19 · 0001193125-26-356877 · Items 8.01

  8. 4 · Ownership change

    Report date 2026-08-11 · 0001030575-26-000008

  9. 4 · Ownership change

    Report date 2026-08-06 · 0000902664-26-003434

  10. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001193125-26-336707

  11. 8-K · Current report

    Report date 2026-08-05 · 0001193125-26-336685 · Items 1.01,2.02,3.02,9.01

  12. 4 · Ownership change

    Report date 2026-08-04 · 0001193125-26-335041

  13. 8-K · Current report

    Report date 2026-06-10 · 0001193125-26-267741 · Items 5.07

  14. 8-K · Current report

    Report date 2026-05-19 · 0001193125-26-229610 · Items 8.01,9.01

  15. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001193125-26-210303

  16. 8-K · Current report

    Report date 2026-05-07 · 0001193125-26-210291 · Items 2.02,9.01

  17. DEF 14A · Proxy statement

    Report date 2026-06-10 · 0001193125-26-157895

  18. 10-K · Annual report

    Report date 2025-12-31 · 0001193125-26-104156

  19. 8-K · Current report

    Report date 2026-03-12 · 0001193125-26-104135 · Items 2.02,9.01

  20. 8-K · Current report

    Report date 2026-03-09 · 0001193125-26-097575 · Items 1.01,2.02,3.02,7.01,9.01

  21. 8-K · Current report

    Report date 2026-01-27 · 0001193125-26-023436 · Items 8.01,9.01

  22. 8-K · Current report

    Report date 2026-01-15 · 0001193125-26-014087 · Items 8.01,9.01

  23. 8-K · Current report

    Report date 2025-12-15 · 0001193125-25-324795 · Items 5.02,9.01

  24. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001193125-25-277572

  25. 8-K · Current report

    Report date 2025-11-07 · 0001193125-25-277556 · Items 1.01,2.02,2.05,5.02,9.01

  26. 8-K · Current report

    Report date 2025-10-07 · 0001193125-25-234001 · Items 5.02,9.01

  27. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000950170-25-106912

  28. 8-K · Current report

    Report date 2025-08-12 · 0000950170-25-106910 · Items 2.02,9.01

  29. 8-K/A · Current report

    Report date 2025-06-11 · 0000950170-25-087949 · Items 5.07

  30. 8-K · Current report

    Report date 2025-06-11 · 0000950170-25-084846 · Items 5.07

  31. 10-Q · Quarterly report

    Report date 2025-03-31 · 0000950170-25-065800

  32. 8-K · Current report

    Report date 2025-05-07 · 0000950170-25-065786 · Items 2.02,2.05,9.01

  33. DEF 14A · Proxy statement

    Report date 2025-06-11 · 0000950170-25-059533

  34. 8-K · Current report

    Report date 2025-03-27 · 0001193125-25-064792 · Items 5.02

  35. 10-K · Annual report

    Report date 2024-12-31 · 0000950170-25-040759

  36. 8-K · Current report

    Report date 2025-03-18 · 0000950170-25-040755 · Items 2.02,9.01

  37. 8-K · Current report

    Report date 2025-02-11 · 0001193125-25-024305 · Items 5.02

  38. 8-K · Current report

    Report date 2025-01-13 · 0001193125-25-005020 · Items 8.01,9.01

  39. 8-K · Current report

    Report date 2024-11-21 · 0000950170-24-129488 · Items 8.01,9.01

  40. SC 13G/A · Ownership disclosure

    0001580642-24-006953

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: 2 transaction rows2PSale: 18 transaction rows18SGrant / award: 4 transaction rows4AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

24 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-14
2026-09-15
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock31888.014.12
2026-09-14
2026-09-15
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock6602.014.12
2026-09-11
2026-09-14
Dolan OliverS · Sale
Disposed
Common Stock5.013.72
2026-09-11
2026-09-15
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1750.013.99
2026-09-11
2026-09-15
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock8450.013.99
2026-09-09
2026-09-10
Dolan OliverS · Sale
Disposed
Common Stock6.013.6
2026-09-08
2026-09-10
Dolan OliverS · Sale
Disposed
Common Stock7347.013.51
2026-08-26
2026-08-28
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock249.013.96
2026-08-26
2026-08-28
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock51.013.96
2026-08-19
2026-08-21
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock23584.014.0
2026-08-19
2026-08-21
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4884.014.0
2026-08-11
2026-08-13
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1775.013.96
2026-08-11
2026-08-13
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock368.013.96
2026-08-10
2026-08-13
Lynx1 Capital Management LP; Nichols WestonP · Purchase
Acquired
Common stock, $0.001 par value per share1462.013.19
2026-08-06
2026-08-13
Lynx1 Capital Management LP; Nichols WestonP · Purchase
Acquired
Common stock, $0.001 par value per share5222.011.4
2026-08-04
2026-08-05
Aiyar RamS · Sale
Disposed
Common Stock5802.010.84
2026-07-15
2026-07-17
Vincent Loic AA · Grant / award
Acquired
Common Stock7500.00.0
2026-07-15
2026-07-17
Dolan OliverA · Grant / award
Acquired
Common Stock5500.00.0
2026-07-15
2026-07-17
Cerio JeffreyA · Grant / award
Acquired
Common Stock6500.00.0
2026-07-15
2026-07-17
Chappell ToddA · Grant / award
Acquired
Common Stock7500.00.0
2026-07-06
2026-07-07
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock817.013.96
2026-07-06
2026-07-07
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock8506.013.96
2026-07-02
2026-07-07
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock85955.014.03
2026-07-02
2026-07-07
FORMELA JEAN FRANCOIS
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock14745.014.03

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 · 0001703647Korro Bio, 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
  • Frequency Therapeutics, Inc. · former SEC name · 2017-04-14 to 2023-11-06

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$2.27M$2.44M
2023-12-31$0$0

Bureau of Labor Statistics · retrieved 2026-10-20 · 9 selected series; gaps remain missing

Explore the CPI history ↗