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YMAB insider transaction filings

Y-mAbs Therapeutics, Inc. — 20 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2025-09-19. Screen YMAB transaction legs live →

FiledFormInsiderReported transactionsSource
2025-09-194Hamill Laura — DirectorCode (U): 5,825 @ $8.60 · Disposition to issuer (D): 25,080 · Disposition to issuer (D): 27,000 (derivative) · Disposition to issuer (D): 11,000 (derivative) · Disposition to issuer (D): 16,000 (derivative) · Disposition to issuer (D): 13,950 (derivative) · +2 moreEDGAR
2025-09-184Gentilcore Douglas J — SVP, Danyelza Bus. Unit HeadDisposition to issuer (D): 142,600 (derivative)EDGAR
2025-09-184Rossi Michael J — PRESIDENT & CEO, DirectorCode (U): 7,982 @ $8.60 · Disposition to issuer (D): 129,101 · Disposition to issuer (D): 615,240 (derivative) · Disposition to issuer (D): 214,200 (derivative) · Disposition to issuer (D): 210,700 (derivative) · Disposition to issuer (D): 18,000 (derivative) · +4 moreEDGAR
2025-09-184Wilms Joris — SVP & CHIEF OPERATING OFFICERCode (U): 12,799 @ $8.60 · Disposition to issuer (D): 39,301 · Disposition to issuer (D): 20,000 (derivative) · Disposition to issuer (D): 20,000 (derivative) · Disposition to issuer (D): 20,000 (derivative) · Disposition to issuer (D): 20,000 (derivative) · +7 moreEDGAR
2025-09-184Gad Thomas — CHIEF BUSINESS OFFICER, DirectorCode (U): 245,486 @ $8.60 · Disposition to issuer (D): 60,235 · Code (U): 67,681 @ $8.60 · Code (U): 60,000 @ $8.60 · Disposition to issuer (D): 143,169 (derivative) · Disposition to issuer (D): 16,000 (derivative) · +12 moreEDGAR
2025-09-184WG Biotech ApS — Director, 10% ownerCode (U): 4,559,233 @ $8.60EDGAR
2025-09-184Wedell-Wedellsborg Johan — Director, 10% ownerCode (U): 5,825 @ $8.60 · Disposition to issuer (D): 25,080 · Code (U): 4,559,233 @ $8.60 · Disposition to issuer (D): 36,000 (derivative) · Disposition to issuer (D): 32,000 (derivative) · Disposition to issuer (D): 16,000 (derivative) · +6 moreEDGAR
2025-09-184TYAGI ASHU — DirectorCode (U): 5,825 @ $8.60 · Disposition to issuer (D): 25,080 · Disposition to issuer (D): 16,000 (derivative) · Disposition to issuer (D): 32,000 (derivative) · Disposition to issuer (D): 11,000 (derivative) · Disposition to issuer (D): 11,000 (derivative) · +4 moreEDGAR
2025-09-184LaRocca John — SVP, General Counsel & SecryDisposition to issuer (D): 21,500 · Disposition to issuer (D): 142,600 (derivative) · Disposition to issuer (D): 42,900 (derivative)EDGAR
2025-09-184PFREUNDSCHUH PETER P. — EVP, CFO and TreasurerDisposition to issuer (D): 77,800 · Disposition to issuer (D): 170,000 (derivative) · Disposition to issuer (D): 63,500 (derivative) · Disposition to issuer (D): 15,900 (derivative) · Disposition to issuer (D): 15,900 (derivative)EDGAR
2025-09-184HEALY JAMES — DirectorCode (U): 31,603 @ $8.60 · Disposition to issuer (D): 25,080 · Code (U): 2,194,278 @ $8.60 · Disposition to issuer (D): 14,222 (derivative) · Disposition to issuer (D): 8,000 (derivative) · Disposition to issuer (D): 11,000 (derivative) · +5 moreEDGAR
2025-09-184GILL DAVID N — DirectorDisposition to issuer (D): 5,825 @ $8.60 · Disposition to issuer (D): 25,080 · Disposition to issuer (D): 24,000 (derivative) · Disposition to issuer (D): 16,000 (derivative) · Disposition to issuer (D): 11,000 (derivative) · Disposition to issuer (D): 11,000 (derivative) · +4 moreEDGAR
2025-07-024Hamill Laura — DirectorGrant/award (A): 25,080 @ $0 · Grant/award (A): 33,450 (derivative) @ $0EDGAR
2025-07-024TYAGI ASHU — DirectorGrant/award (A): 25,080 @ $0 · Grant/award (A): 33,450 (derivative) @ $0EDGAR
2025-07-024Wedell-Wedellsborg Johan — Director, 10% ownerGrant/award (A): 25,080 @ $0 · Grant/award (A): 33,450 (derivative) @ $0EDGAR
2025-07-024HEALY JAMES — DirectorGrant/award (A): 25,080 @ $0 · Grant/award (A): 33,450 (derivative) @ $0EDGAR
2025-07-024GILL DAVID N — DirectorGrant/award (A): 25,080 @ $0 · Grant/award (A): 33,450 (derivative) @ $0EDGAR
2025-06-054Gad Thomas — CHIEF BUSINESS OFFICER, DirectorOption exercise (M): 103,000 @ $2 · Option exercise (M): 103,000 (derivative) @ $0EDGAR
2025-03-114Rossi Michael J — PRESIDENT & CEO, DirectorSale (S): 3,917 @ $5.20EDGAR
2025-03-114Gad Thomas — CHIEF BUSINESS OFFICER, DirectorSale (S): 10,810 @ $5.23EDGAR

Recent 8-K events — Y-mAbs Therapeutics, Inc.

FiledFormItems reportedSource
2025-09-168-K2.01 — Completion of Acquisition or Disposition of Assets
3.01 — Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing
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
9.01 — Financial Statements and Exhibits		EDGAR
2025-08-088-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits		EDGAR
2025-08-058-K1.01 — Entry into a Material Definitive Agreement
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits		EDGAR
2025-07-158-K5.07 — Submission of Matters to a Vote of Security HoldersEDGAR
2025-05-288-K7.01 — Regulation FD Disclosure
8.01 — Other Events
9.01 — Financial Statements and Exhibits		EDGAR
2025-05-138-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits		EDGAR
2025-03-048-K1.01 — Entry into a Material Definitive Agreement
9.01 — Financial Statements and Exhibits		EDGAR
2025-03-048-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits		EDGAR
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