A business in context

HRGN research notebook

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

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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. 4 · Ownership change

    Report date 2026-09-11 · 0001437749-26-031181

  2. 8-K · Current report

    Report date 2026-09-11 · 0001437749-26-030244 · Items 1.01,3.02,9.01

  3. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001437749-26-027566

  4. 4 · Ownership change

    Report date 2026-07-21 · 0001437749-26-026955

  5. 8-K · Current report

    Report date 2026-05-08 · 0001437749-26-025423 · Items 1.01,2.03,9.01

  6. 8-K/A · Current report

    Report date 2026-04-13 · 0001437749-26-025419 · Items 1.01,2.03,9.01

  7. 8-K · Current report

    Report date 2026-06-18 · 0001437749-26-021480 · Items 5.07

  8. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001437749-26-016761

  9. 8-K · Current report

    Report date 2026-04-27 · 0001437749-26-013677 · Items 7.01,9.01

  10. DEF 14A · Proxy statement

    Report date 2026-06-18 · 0001437749-26-013125

  11. 8-K · Current report

    Report date 2026-04-13 · 0001437749-26-012380 · Items 1.02,9.01

  12. 10-K · Annual report

    Report date 2025-12-31 · 0001437749-26-009079

  13. 8-K · Current report

    Report date 2025-12-30 · 0001437749-26-000452 · Items 1.01,3.02,9.01

  14. 4 · Ownership change

    Report date 2025-11-25 · 0001437749-25-036518

  15. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001437749-25-033832

  16. 4 · Ownership change

    Report date 2025-09-30 · 0001437749-25-030204

  17. 4 · Ownership change

    Report date 2025-09-02 · 0001437749-25-029783

  18. 4 · Ownership change

    Report date 2025-08-21 · 0001437749-25-028095

  19. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001437749-25-025939

  20. 8-K · Current report

    Report date 2025-07-11 · 0001437749-25-022650 · Items 1.01,3.02,9.01

  21. 4 · Ownership change

    Report date 2025-06-27 · 0001437749-25-021710

  22. 4 · Ownership change

    Report date 2025-06-27 · 0001437749-25-021708

  23. 8-K · Current report

    Report date 2025-06-20 · 0001437749-25-021097 · Items 5.07

  24. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001437749-25-016764

  25. DEF 14A · Proxy statement

    Report date 2025-06-20 · 0001437749-25-013477

  26. 8-K · Current report

    Report date 2025-04-11 · 0001437749-25-011884 · Items 4.01,9.01

  27. 10-K · Annual report

    Report date 2024-12-31 · 0001437749-25-010213

  28. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001493152-24-045098

  29. 8-K · Current report

    Report date 2024-10-31 · 0001493152-24-043862 · Items 1.01,9.01

  30. SC 13D · Ownership disclosure

    0001493152-24-038196

  31. 8-K · Current report

    Report date 2024-08-26 · 0001493152-24-034014 · Items 5.02,9.01

  32. 8-K · Current report

    Report date 2024-08-19 · 0001493152-24-033401 · Items 1.01,3.02,9.01

  33. SC 13D/A · Ownership disclosure

    0001493152-24-032850

  34. 10-Q · Quarterly report

    Report date 2024-06-30 · 0001493152-24-031570

  35. 8-K · Current report

    Report date 2024-06-20 · 0001493152-24-024931 · Items 5.07

  36. 10-Q · Quarterly report

    Report date 2024-03-31 · 0001493152-24-018874

  37. DEF 14A · Proxy statement

    Report date 2024-04-29 · 0001493152-24-016866

  38. 8-K · Current report

    Report date 2024-04-15 · 0001493152-24-015052 · Items 1.01,3.02,9.01

  39. 10-K · Annual report

    Report date 2023-12-31 · 0001493152-24-011784

  40. SC 13G/A · Ownership disclosure

    0000921895-24-000385

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: 0 transaction rows0SGrant / award: 2 transaction rows2AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

8 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-15
2026-09-25
He JunliP · Purchase
Acquired
Common Stock6725.02.15
2026-09-11
2026-09-25
He JunliP · Purchase
Acquired
Common Stock361905.01.05
2026-09-11
2026-09-25
He JunliC · Conversion
Acquired
Common Stock683725.01.05
2026-09-11
2026-09-25
He JunliC · Conversion
Disposed
Bridge Note (04/14/2026)
Derivative security
310000.0n/a
2026-09-11
2026-09-25
He JunliC · Conversion
Disposed
Bridge Note (07/16/2026)
Derivative security
202533.0n/a
2026-09-11
2026-09-25
He JunliC · Conversion
Disposed
Bridge Note (05/13/2026)
Derivative security
205378.0n/a
2026-07-21
2026-08-11
He JunliA · Grant / award
Acquired
Nonqualified Stock Option (right to buy), time-based tranche
Derivative security
600000.00.0
2026-07-21
2026-08-11
He JunliA · Grant / award
Acquired
Nonqualified Stock Option (right to buy), performance-based
Derivative security
600000.00.0

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 · 0001563665Harvard Apparatus Regenerative Technology, 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
  • Biostage, Inc. · former SEC name · 2016-04-05 to 2023-07-10

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$430.0K$461.9K
2023-12-31$103.0K$113.9K

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

Explore the CPI history ↗