KRSA insider transaction filings

Korsana Biosciences, Inc. — 4 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-09-10. Screen KRSA transaction legs live →

Insider transaction summary — last 90 days

2026-06-24 to 2026-09-22, from the filings listed below: 4 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.

By insider — same window

Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.

InsiderFilingsPurchases (P)Sales (S)Other legs
Fairmount Funds Management LLC — Director, 10% owner & Fairmount Healthcare Fund II L.P. — Director, 10% owner & Fairmount Healthcare Co-Invest VI L.P. — Director, 10% owner & Kiselak Tomas — Director, 10% owner & Harwin Peter Evan — Director, 10% owner11
Gottesdiener Andrew — Director11
Pernice Michelle Patricia — Director11
Shah Nimish P — Director11

Recent Form 4 filings — Korsana Biosciences, Inc.

FiledFormInsiderReported transactionsSource
2026-09-104Fairmount Funds Management LLC — Director, 10% owner
Fairmount Healthcare Fund II L.P. — Director, 10% owner
Fairmount Healthcare Co-Invest VI L.P. — Director, 10% owner
Kiselak Tomas — Director, 10% owner
Harwin Peter Evan — Director, 10% owner
Grant/award (A): 48,445 (derivative) @ $0EDGAR
2026-09-104Shah Nimish P — DirectorGrant/award (A): 48,445 (derivative) @ $0EDGAR
2026-09-104Pernice Michelle Patricia — DirectorGrant/award (A): 48,445 (derivative) @ $0EDGAR
2026-09-104Gottesdiener Andrew — DirectorGrant/award (A): 48,445 (derivative) @ $0EDGAR

Recent 8-K events — Korsana Biosciences, Inc.

FiledFormItems reportedSource
2026-09-118-K1.01 — Entry into a Material Definitive Agreement
2.01 — Completion of Acquisition or Disposition of Assets
2.02 — Results of Operations and Financial Condition
3.02 — Unregistered Sales of Equity Securities
3.03 — Material Modification to Rights of Security Holders
5.01 — Changes in Control of Registrant
5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
5.05 — Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics
5.06 — Change in Shell Company Status
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2026-08-278-K5.07 — Submission of Matters to a Vote of Security Holders
8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2026-08-258-K8.01 — Other EventsEDGAR
2026-04-018-K1.01 — Entry into a Material Definitive Agreement
5.01 — Changes in Control of Registrant
5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2026-02-178-K7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2026-01-068-K1.01 — Entry into a Material Definitive Agreement
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2025-12-018-K8.01 — Other EventsEDGAR
2025-09-238-K1.01 — Entry into a Material Definitive Agreement
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2025-06-188-K5.07 — Submission of Matters to a Vote of Security Holders
9.01 — Financial Statements and Exhibits
EDGAR
2025-05-078-K1.01 — Entry into a Material Definitive Agreement
9.01 — Financial Statements and Exhibits
EDGAR
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