MTSR insider transaction filings
Metsera, Inc. — 34 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2025-11-17. Screen MTSR transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2025-11-17 | 4 | FMR LLC — 10% owner | Other (J): 3,010 · Other (J): 2,230,450 | EDGAR |
| 2025-11-14 | 4 | ARCH Venture Partners XII, LLC — Director, 10% owner ARCH Venture Fund XII, L.P. — Director, 10% owner ARCH Venture Partners XII, L.P. — Director, 10% owner ARCH Venture Fund XIII, L.P. — Director, 10% owner ARCH Venture Partners XIII, L.P. — Director, 10% owner ARCH Venture Partners XIII, LLC — Director, 10% owner CRANDELL KEITH — Director, 10% owner GILLIS STEVEN — Director, 10% owner NELSEN ROBERT — Director, 10% owner | Disposition to issuer (D): 18,503,128 · Disposition to issuer (D): 8,313,680 | EDGAR |
| 2025-11-13 | 4 | Marso Steven — CHIEF MEDICAL OFFICER | Disposition to issuer (D): 17,000 · Grant/award (A): 17,000 (derivative) · Disposition to issuer (D): 120,000 (derivative) · Disposition to issuer (D): 829,885 (derivative) · Disposition to issuer (D): 21,279 (derivative) | EDGAR |
| 2025-11-13 | 4 | Population Health Partners GP, LLC — 10% owner | Disposition to issuer (D): 127,675 · Disposition to issuer (D): 12,639,787 | EDGAR |
| 2025-11-13 | 4 | Validae Health, L.P. — 10% owner | Other (J): 12,767,462 @ $0 | EDGAR |
| 2025-11-13 | 4 | Hubbard Brian — CHIEF SCIENTIFIC OFFICER | Disposition to issuer (D): 17,000 · Grant/award (A): 17,000 (derivative) · Disposition to issuer (D): 319,186 (derivative) · Disposition to issuer (D): 120,000 (derivative) · Disposition to issuer (D): 106,395 (derivative) | EDGAR |
| 2025-11-13 | 4 | Bernard Christopher Whitten — See Remarks, Director | Disposition to issuer (D): 21,250 · Disposition to issuer (D): 12,767,462 · Grant/award (A): 21,250 (derivative) · Disposition to issuer (D): 348,750 (derivative) · Disposition to issuer (D): 1,702,328 (derivative) | EDGAR |
| 2025-11-13 | 4 | Pinto Joshua — Director | Disposition to issuer (D): 2,688 · Grant/award (A): 2,688 (derivative) · Disposition to issuer (D): 16,125 (derivative) · Disposition to issuer (D): 148,953 (derivative) | EDGAR |
| 2025-11-13 | 4 | Visioli Christopher — CHIEF FINANCIAL OFFICER | Disposition to issuer (D): 21,250 · Grant/award (A): 21,250 (derivative) · Disposition to issuer (D): 150,000 (derivative) · Disposition to issuer (D): 255,349 (derivative) · Disposition to issuer (D): 340,465 (derivative) | EDGAR |
| 2025-11-13 | 4 | Lang Matthew — CHIEF LEGAL OFFICER | Disposition to issuer (D): 12,500 · Grant/award (A): 12,500 (derivative) · Disposition to issuer (D): 46,875 (derivative) · Disposition to issuer (D): 325,000 (derivative) | EDGAR |
| 2025-11-13 | 4 | Burow Kristina — Director | Disposition to issuer (D): 2,688 · Disposition to issuer (D): 17,070,904 · Disposition to issuer (D): 18,503,128 · Disposition to issuer (D): 7,523,682 · Disposition to issuer (D): 8,313,680 · Grant/award (A): 2,688 (derivative) · +2 more | EDGAR |
| 2025-11-13 | 4 | Stonehouse Jon P — Director | Disposition to issuer (D): 2,688 · Grant/award (A): 2,688 (derivative) · Disposition to issuer (D): 47,730 (derivative) | EDGAR |
| 2025-11-13 | 4 | MEANWELL CLIVE — EXECUTIVE CHAIRMAN, Director | Disposition to issuer (D): 5,375 · Disposition to issuer (D): 12,767,462 · Grant/award (A): 5,375 (derivative) · Disposition to issuer (D): 32,250 (derivative) · Disposition to issuer (D): 297,907 (derivative) | EDGAR |
| 2025-11-13 | 4 | BERNS PAUL L — Director | Disposition to issuer (D): 4,031 · Disposition to issuer (D): 7,523,682 · Disposition to issuer (D): 8,313,680 · Disposition to issuer (D): 957,559 · Grant/award (A): 4,031 (derivative) · Disposition to issuer (D): 24,188 (derivative) · +1 more | EDGAR |
| 2025-11-12 | 4 | FMR LLC — 10% owner | Gift (G): 860,722 @ $0 | EDGAR |
| 2025-11-05 | 4 | FMR LLC — 10% owner | Other (J): 3,189,540 @ $0 · Other (J): 47,843 @ $0 · Other (J): 47,843 @ $0 · Other (J): 2,115 @ $0 · Other (J): 2,356,274 @ $0 · Sale (S): 193 @ $61.23 · +2 more | EDGAR |
| 2025-10-08 | 4 | FMR LLC — 10% owner | Gift (G): 633,715 @ $0 | EDGAR |
| 2025-09-12 | 4/A | FMR LLC — 10% owner | Other (J): 1,107,547 @ $0 | EDGAR |
| 2025-09-04 | 4 | FMR LLC — 10% owner | Other (J): 1,350,000 @ $0 · Other (J): 20,250 @ $0 · Other (J): 20,250 @ $0 · Other (J): 895 @ $0 · Other (J): 997,312 @ $0 · Other (J): 997,044 @ $0 · +2 more | EDGAR |
| 2025-05-22 | 4 | Bernard Christopher Whitten — President and CEO, Director | Grant/award (A): 348,750 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | Hubbard Brian — Chief Scientific Officer | Grant/award (A): 120,000 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | Marso Steven — Chief Medical Officer | Grant/award (A): 120,000 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | Pinto Joshua — Director | Grant/award (A): 16,125 (derivative) @ $0 · Gift (G): 148,953 (derivative) @ $0 · Gift (G): 148,953 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | Visioli Christopher — Chief Financial Officer | Grant/award (A): 150,000 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | Lang Matthew — Chief Legal Officer | Grant/award (A): 46,875 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | Burow Kristina — Director | Grant/award (A): 16,125 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | MEANWELL CLIVE — Executive Chairman, Director | Grant/award (A): 32,250 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | BERNS PAUL L — Director | Grant/award (A): 24,188 (derivative) @ $0 | EDGAR |
| 2025-04-30 | 4 | Stonehouse Jon P — Director | Grant/award (A): 47,730 (derivative) @ $19.81 | EDGAR |
| 2025-02-05 | 4 | FMR LLC — 10% owner | Conversion (C): 1,418,606 · Conversion (C): 3,120,934 · Conversion (C): 1,418,606 (derivative) · Conversion (C): 3,120,934 (derivative) | EDGAR |
| 2025-02-03 | 4 | Wellington Biomedical Innovation Master Investors (Cayman) II L.P. — 10% owner | Conversion (C): 1,857,699 · Conversion (C): 4,365,079 (derivative) @ $0 | EDGAR |
| 2025-02-03 | 4 | Burow Kristina — Director, 10% owner | Conversion (C): 16,006,949 · Purchase (P): 1,432,224 @ $18 · Conversion (C): 7,523,682 · Purchase (P): 789,998 @ $18 · Conversion (C): 19,933,333 (derivative) · Conversion (C): 15,000,000 (derivative) · +3 more | EDGAR |
| 2025-02-03 | 4 | ARCH Venture Partners XII, LLC — 10% owner ARCH Venture Fund XII, L.P. — 10% owner ARCH Venture Partners XII, L.P. — 10% owner ARCH Venture Fund XIII, L.P. — 10% owner ARCH Venture Partners XIII, L.P. — 10% owner ARCH Venture Partners XIII, LLC — 10% owner CRANDELL KEITH — 10% owner GILLIS STEVEN — 10% owner NELSEN ROBERT — 10% owner | Conversion (C): 16,006,949 · Conversion (C): 7,523,682 · Purchase (P): 1,432,224 @ $18 · Purchase (P): 789,998 @ $18 · Conversion (C): 19,933,333 (derivative) · Conversion (C): 15,000,000 (derivative) · +3 more | EDGAR |
| 2025-02-03 | 4 | BERNS PAUL L — Director | Conversion (C): 7,523,682 · Purchase (P): 789,998 @ $18 · Conversion (C): 15,000,000 (derivative) · Conversion (C): 2,678,571 (derivative) | EDGAR |
Recent 8-K events — Metsera, Inc.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2025-11-13 | 8-K | 2.01 — 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 5.07 — Submission of Matters to a Vote of Security Holders 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-10 | 8-K | 1.01 — Entry into a Material Definitive Agreement 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-06 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-04 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-03 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-03 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-10-30 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-09-29 | 8-K | 7.01 — Regulation FD Disclosure 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-09-22 | 8-K | 1.01 — Entry into a Material Definitive Agreement 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 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-07-28 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
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