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Peter A. Thompson

Insider · Director · SION

Peter A. Thompson files insider transactions with the SEC as a director of Sionna Therapeutics (SION). We hold 13 disclosed purchases and sales filed since 19 October 2006, 2 of them in the last 90 days.

  • Files forSION
  • Disclosed buys and sells13 in all, 2 in the last 90 days
  • Last disclosure9 July 2026

Positions held

16 posts we hold — a term names its own dates; a run of filings only says when they filed
  • Filed 10 February 2025 — 7 July 2026Director · Sionna Therapeutics (SION)28 Form 4 lines · source: SEC Form 4
  • Filed 27 June 2023 — 24 June 2026Director · ARS Pharmaceuticals (SPRY)10 Form 4 lines · source: SEC Form 4
  • Filed 22 March 2016 — 11 June 2026Director and 10% owner · Corvus Pharmaceuticals (CRVS)97 Form 4 lines · source: SEC Form 4
  • Filed 30 March 2021 — 5 June 2026Director and 10% owner · Edgewise Therapeutics (EWTX)19 Form 4 lines · source: SEC Form 4
  • Filed 24 July 2017 — 20 May 2024Director · Alpine Immune Sciences (ALPN)30 Form 4 lines · source: SEC Form 4
  • Filed 11 February 2021 — 17 June 2022Director and 10% owner · Decibel Therapeutics (DBTX)10 Form 4 lines · source: SEC Form 4
  • Filed 10 June 2021 — 14 June 2022Director · Janux Therapeutics (JANX)16 Form 4 lines · source: SEC Form 4
  • Filed 3 December 2020 — 10 June 2022Director and 10% owner · Silverback Therapeutics (SBTX)11 Form 4 lines · source: SEC Form 4
  • Filed 25 September 2020 — 2 June 2022Director and 10% owner · PMV Pharmaceuticals (PMVP)13 Form 4 lines · source: SEC Form 4
  • Filed 24 June 2019 — 22 January 2021Director and 10% owner · Prevail Therapeutics (PRVL)8 Form 4 lines · source: SEC Form 4
  • Filed 6 December 2018 — 23 January 2020Director and 10% owner · Synthorx (THOR)8 Form 4 lines · source: SEC Form 4
  • Filed 20 May 2016 — 6 June 2018Director · Adaptimmune Therapeutics (ADAP)13 Form 4 lines · source: SEC Form 4
  • Filed 2 April 2012 — 29 November 2016Interim Chief Exec Officer · Response Biomedical (RBM)35 Form 4 lines · source: SEC Form 4
  • Filed 21 July 2015 — 21 July 2015Director · ProNAi Therapeutics (DNAI)4 Form 4 lines · source: SEC Form 4
  • Filed 30 June 2011 — 8 May 2012Director · Anthera Pharmaceuticals (ANTH)3 Form 4 lines · source: SEC Form 4
  • Filed 18 October 2006 — 27 August 2009President and CEO · Trubion Pharmaceuticals (TRBN)25 Form 4 lines · source: SEC Form 4

Everything they disclosed

120 entries, newest first — one per disclosure report, one per Form 4 line

Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.