A business in context

IRON research notebook

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

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-23 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 8-K · Current report

    Report date 2026-10-19 · 0001193125-26-429105 · Items 1.01,2.02,8.01,9.01

  2. 4 · Ownership change

    Report date 2026-10-19 · 0001591747-26-000009

  3. 8-K · Current report

    Report date 2026-10-19 · 0001193125-26-424649 · Items 7.01,8.01,9.01

  4. 4 · Ownership change

    Report date 2026-09-15 · 0001193125-26-393353

  5. 4 · Ownership change

    Report date 2026-09-11 · 0001591747-26-000007

  6. 8-K · Current report

    Report date 2026-09-09 · 0001193125-26-387351 · Items 7.01,8.01,9.01

  7. 4 · Ownership change

    Report date 2026-09-04 · 0001591747-26-000005

  8. 4 · Ownership change

    Report date 2026-09-01 · 0001591747-26-000002

  9. 4 · Ownership change

    Report date 2026-08-24 · 0001193125-26-369179

  10. 4 · Ownership change

    Report date 2026-08-17 · 0001193125-26-355841

  11. 4 · Ownership change

    Report date 2026-08-12 · 0001193125-26-352823

  12. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001193125-26-325034

  13. 8-K · Current report

    Report date 2026-07-30 · 0001193125-26-325031 · Items 2.02,9.01

  14. 8-K · Current report

    Report date 2026-06-25 · 0001193125-26-290542 · Items 1.01,2.03

  15. 8-K · Current report

    Report date 2026-06-18 · 0001193125-26-281096 · Items 5.07

  16. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001193125-26-205192

  17. 8-K · Current report

    Report date 2026-05-05 · 0001193125-26-205187 · Items 2.02,9.01

  18. DEF 14A · Proxy statement

    Report date 2026-06-18 · 0001193125-26-187646

  19. 8-K · Current report

    Report date 2026-02-26 · 0001193125-26-082855 · Items 2.05

  20. 10-K · Annual report

    Report date 2025-12-31 · 0001193125-26-073602

  21. 8-K · Current report

    Report date 2026-02-26 · 0001193125-26-073594 · Items 2.02,9.01

  22. 8-K · Current report

    Report date 2026-02-17 · 0001193125-26-053066 · Items 7.01,9.01

  23. 8-K · Current report

    Report date 2026-02-13 · 0001193125-26-051504 · Items 7.01,8.01,9.01

  24. 8-K · Current report

    Report date 2026-01-12 · 0001193125-26-009871 · Items 2.02,7.01,9.01

  25. 8-K · Current report

    Report date 2025-12-07 · 0001193125-25-310664 · Items 8.01,9.01

  26. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001193125-25-268200

  27. 8-K · Current report

    Report date 2025-11-06 · 0001193125-25-268196 · Items 2.02,9.01

  28. 8-K · Current report

    Report date 2025-10-20 · 0001193125-25-245871 · Items 1.01,8.01,9.01

  29. 8-K · Current report

    Report date 2025-10-20 · 0001193125-25-242959 · Items 2.02,7.01,8.01,9.01

  30. 8-K · Current report

    Report date 2025-10-16 · 0001193125-25-242026 · Items 8.01

  31. 8-K · Current report

    Report date 2025-10-03 · 0001193125-25-231911 · Items 5.02

  32. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001816736-25-000007

  33. 8-K · Current report

    Report date 2025-08-07 · 0001816736-25-000006 · Items 2.02,9.01

  34. 8-K · Current report

    Report date 2025-07-09 · 0000950170-25-095466 · Items 5.02

  35. 8-K · Current report

    Report date 2025-06-11 · 0000950170-25-086352 · Items 5.07

  36. 10-Q · Quarterly report

    Report date 2025-03-31 · 0000950170-25-065069

  37. 8-K · Current report

    Report date 2025-05-07 · 0000950170-25-065031 · Items 2.02,9.01

  38. DEF 14A · Proxy statement

    Report date 2025-06-11 · 0000950170-25-058142

  39. 8-K · Current report

    Report date 2025-02-27 · 0001193125-25-037650 · Items 2.02,9.01

  40. 10-K · Annual report

    Report date 2024-12-31 · 0000950170-25-028390

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-23 · 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: 27 transaction rows27SGrant / award: 0 transaction rows0AExercise / conversion: 24 transaction rows24MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

51 matching transaction rows. Showing 1 to 50.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-15
2026-09-16
Quisel John DM · Exercise / conversion
Acquired
Common Stock36000.01.01
2026-09-15
2026-09-16
Quisel John DM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
36000.00.0
2026-09-11
2026-09-15
Bitterman KevinM · Exercise / conversion
Acquired
Common Stock10000.050.86
2026-09-11
2026-09-15
Bitterman KevinS · Sale
Disposed
Common Stock27136.070.11
2026-09-11
2026-09-15
Bitterman KevinM · Exercise / conversion
Acquired
Common Stock10000.038.85
2026-09-11
2026-09-15
Bitterman KevinM · Exercise / conversion
Acquired
Common Stock7136.045.69
2026-09-11
2026-09-15
Bitterman KevinM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
10000.00.0
2026-09-11
2026-09-15
Bitterman KevinM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
10000.00.0
2026-09-11
2026-09-15
Bitterman KevinM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
7136.00.0
2026-09-04
2026-09-09
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock912.079.96
2026-09-04
2026-09-09
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock18.079.96
2026-09-04
2026-09-09
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock759.079.96
2026-09-03
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock54.079.98
2026-09-03
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2810.079.98
2026-09-03
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2339.079.98
2026-09-02
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock26542.080.17
2026-09-02
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock22090.080.17
2026-09-02
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock10.080.98
2026-09-02
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock9.080.98
2026-09-02
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2.080.98
2026-09-02
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock511.080.17
2026-09-01
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock70.079.95
2026-09-01
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock58.079.95
2026-09-01
2026-09-03
Bitterman Kevin
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1.079.95
2026-08-25
2026-08-26
Yu Jonathan Yen-WenS · Sale
Disposed
Common Stock8796.083.12
2026-08-25
2026-08-26
Yu Jonathan Yen-WenM · Exercise / conversion
Acquired
Common Stock8796.013.5
2026-08-25
2026-08-26
Yu Jonathan Yen-WenM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
8796.00.0
2026-08-24
2026-08-26
Yu Jonathan Yen-WenS · Sale
Disposed
Common Stock300.082.53
2026-08-24
2026-08-26
Yu Jonathan Yen-WenM · Exercise / conversion
Acquired
Common Stock300.013.5
2026-08-24
2026-08-26
Yu Jonathan Yen-WenM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
300.00.0
2026-08-17
2026-08-18
Quisel John DM · Exercise / conversion
Acquired
Common Stock33000.013.5
2026-08-17
2026-08-18
Quisel John DS · Sale
Disposed
Common Stock12712.079.2
2026-08-17
2026-08-18
Quisel John DS · Sale
Disposed
Common Stock11888.079.84
2026-08-17
2026-08-18
Quisel John DS · Sale
Disposed
Common Stock8400.078.11
2026-08-17
2026-08-18
Quisel John DM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
33000.00.0
2026-08-12
2026-08-14
Yu Jonathan Yen-WenS · Sale
Disposed
Common Stock804.082.64
2026-08-12
2026-08-14
Yu Jonathan Yen-WenM · Exercise / conversion
Acquired
Common Stock804.013.5
2026-08-12
2026-08-14
Yu Jonathan Yen-WenM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
804.00.0
2026-08-06
2026-08-07
Khara RahulS · Sale
Disposed
Common Stock5000.080.0
2026-08-06
2026-08-07
Khara RahulM · Exercise / conversion
Acquired
Common Stock5000.014.69
2026-08-06
2026-08-07
Khara RahulM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
5000.00.0
2026-07-13
2026-07-14
Quisel John DS · Sale
Disposed
Common Stock16896.074.95
2026-07-13
2026-07-14
Quisel John DS · Sale
Disposed
Common Stock6400.076.05
2026-07-13
2026-07-14
Quisel John DM · Exercise / conversion
Acquired
Common Stock25584.09.86
2026-07-13
2026-07-14
Quisel John DM · Exercise / conversion
Acquired
Common Stock7416.013.5
2026-07-13
2026-07-14
Quisel John DS · Sale
Disposed
Common Stock9704.074.27
2026-07-13
2026-07-14
Quisel John DM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
25584.00.0
2026-07-13
2026-07-14
Quisel John DM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
7416.00.0
2026-07-07
2026-07-09
Yu Jonathan Yen-WenM · Exercise / conversion
Acquired
Common Stock100.013.5
2026-07-07
2026-07-09
Yu Jonathan Yen-WenS · Sale
Disposed
Common Stock100.082.5

Identity & relationships

Wikidata structured data · retrieved 2026-10-23 · 1658 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 · 0001816736Disc Medicine, 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 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names
  • Gemini Therapeutics, Inc. /DE · former SEC name · 2020-11-27 to 2022-12-28
  • FS Development Corp. · former SEC name · 2020-07-02 to 2021-02-08

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.

No USD annual revenue periods with complete CPI coverage are available. Non-USD statements are not converted with U.S. CPI.

Bureau of Labor Statistics · retrieved 2026-10-23 · 9 selected series; gaps remain missing

Explore the CPI history ↗