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SION research notebook

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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. 4 · Ownership change

    Report date 2026-09-17 · 0001231919-26-001201

  2. 4 · Ownership change

    Report date 2026-09-17 · 0002061851-26-000009

  3. 4 · Ownership change

    Report date 2026-09-17 · 0002046433-26-000005

  4. 4 · Ownership change

    Report date 2026-09-17 · 0001772518-26-000004

  5. 4 · Ownership change

    Report date 2026-09-17 · 0001704336-26-000005

  6. 8-K · Current report

    Report date 2026-09-09 · 0001193125-26-390577 · Items 2.05,5.02,8.01,9.01

  7. 8-K · Current report

    Report date 2026-08-10 · 0001193125-26-341230 · Items 8.01,9.01

  8. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-053839

  9. 8-K · Current report

    Report date 2026-08-06 · 0001628280-26-053832 · Items 2.02,9.01

  10. 4 · Ownership change

    Report date 2026-07-07 · 0000947871-26-000695

  11. 4 · Ownership change

    Report date 2026-07-07 · 0000947871-26-000694

  12. 4 · Ownership change

    Report date 2026-07-06 · 0002061851-26-000006

  13. 8-K · Current report

    Report date 2026-06-17 · 0001628280-26-044263 · Items 5.07

  14. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001628280-26-033876

  15. 8-K · Current report

    Report date 2026-05-12 · 0001628280-26-033870 · Items 2.02,9.01

  16. DEF 14A · Proxy statement

    Report date 2026-06-17 · 0001628280-26-027489

  17. 10-K · Annual report

    Report date 2025-12-31 · 0001628280-26-012996

  18. 8-K · Current report

    Report date 2026-03-02 · 0001628280-26-012993 · Items 2.02,9.01

  19. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001628280-25-049251

  20. 8-K · Current report

    Report date 2025-11-05 · 0001628280-25-049246 · Items 2.02,9.01

  21. 10-Q · Quarterly report

    Report date 2025-06-30 · 0002036042-25-000047

  22. 8-K · Current report

    Report date 2025-08-11 · 0002036042-25-000044 · Items 2.02,9.01

  23. 8-K · Current report

    Report date 2025-06-12 · 0002036042-25-000018 · Items 5.07

  24. 8-K · Current report

    Report date 2025-06-04 · 0001193125-25-134462 · Items 7.01,9.01

  25. 10-Q · Quarterly report

    Report date 2025-03-31 · 0002036042-25-000016

  26. 8-K · Current report

    Report date 2025-05-12 · 0002036042-25-000014 · Items 2.02,9.01

  27. DEF 14A · Proxy statement

    Report date 2025-06-12 · 0001193125-25-101830

  28. 10-K · Annual report

    Report date 2024-12-31 · 0002036042-25-000005

  29. 8-K · Current report

    Report date 2025-03-20 · 0001193125-25-058306 · Items 2.02,9.01

  30. 8-K · Current report

    Report date 2025-02-06 · 0001193125-25-023570 · Items 5.03,9.01

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: 7 transaction rows7SGrant / award: 12 transaction rows12AExercise / conversion: 2 transaction rows2MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

25 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-17
2026-09-18
Fitzpatrick JenniferA · Grant / award
Acquired
Common Stock28132.00.0
2026-09-17
2026-09-18
Fitzpatrick JenniferA · Grant / award
Acquired
Common Stock28133.00.0
2026-09-17
2026-09-18
Fitzpatrick JenniferD · Disposition to issuer
Disposed
Non-Qualified Stock Option (right to buy)
Derivative security
103140.00.0
2026-09-17
2026-09-18
Fitzpatrick JenniferA · Grant / award
Acquired
Non-Qualified Stock Option (right to buy)
Derivative security
103140.00.0
2026-09-17
2026-09-18
McKee CharlotteA · Grant / award
Acquired
Common Stock50000.00.0
2026-09-17
2026-09-18
McKee CharlotteA · Grant / award
Acquired
Common Stock50000.00.0
2026-09-17
2026-09-18
McKee CharlotteA · Grant / award
Acquired
Non-Qualified Stock Option (right to buy)
Derivative security
155700.00.0
2026-09-17
2026-09-18
McKee CharlotteD · Disposition to issuer
Disposed
Non-Qualified Stock Option (right to buy)
Derivative security
155700.00.0
2026-09-17
2026-09-18
Ridloff ElenaA · Grant / award
Acquired
Common Stock47268.00.0
2026-09-17
2026-09-18
Ridloff ElenaA · Grant / award
Acquired
Common Stock47269.00.0
2026-09-17
2026-09-18
Ridloff ElenaA · Grant / award
Acquired
Non-Qualified Stock Option (right to buy)
Derivative security
165440.00.0
2026-09-17
2026-09-18
Ridloff ElenaD · Disposition to issuer
Disposed
Non-Qualified Stock Option (right to buy)
Derivative security
165440.00.0
2026-09-17
2026-09-18
Cloonan MichaelA · Grant / award
Acquired
Common Stock109025.00.0
2026-09-17
2026-09-18
Cloonan MichaelA · Grant / award
Acquired
Common Stock109025.00.0
2026-09-17
2026-09-18
Cloonan MichaelA · Grant / award
Acquired
Non-Qualified Stock Option (right to buy)
Derivative security
436100.00.0
2026-09-17
2026-09-18
Cloonan MichaelD · Disposition to issuer
Disposed
Non-Qualified Stock Option (right to buy)
Derivative security
436100.00.0
2026-09-17
2026-09-21
Kolchinsky Peter; RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund III, L.P.; RA Capital Nexus Fund, L.P.; Shah Rajeev M.S · Sale
Disposed
Common Stock3415011.06.32
2026-09-17
2026-09-21
Kolchinsky Peter; RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund III, L.P.; RA Capital Nexus Fund, L.P.; Shah Rajeev M.S · Sale
Disposed
Common Stock33800.07.46
2026-07-07
2026-07-09
Thompson Peter A.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock85918.044.86
2026-07-07
2026-07-09
ORBIMED ADVISORS LLC; OrbiMed Capital GP VIII LLC
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock85918.044.86
2026-07-06
2026-07-07
Fitzpatrick Jennifer
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock10250.06.11
2026-07-06
2026-07-07
Fitzpatrick Jennifer
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock10250.043.6
2026-07-06
2026-07-07
Fitzpatrick Jennifer
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Non-Qualified Stock Option (right to buy)
Derivative security
10250.00.0
2026-06-30
2026-07-02
Thompson Peter A.
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock115844.045.5
2026-06-30
2026-07-02
ORBIMED ADVISORS LLC; OrbiMed Capital GP VIII LLC
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock115844.045.5

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 · 0002036042Sionna Therapeutics, 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

    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 2026-10-22 · 9 selected series; gaps remain missing

    Explore the CPI history ↗