Metsera, Inc. ($MTSR) Insider Transactions

Last updated: 2026-03-16 13:03 UTC | Total transactions: 117

In the last 12 months, insiders at Metsera, Inc. ($MTSR) filed 117 transactions with the SEC: 5 open-market purchases totaling $94,219,956 and 2 sales totaling $21,465. Net insider sentiment: net buying.

Metsera, Inc. operates in the Pharmaceutical preparations industry (Life sciences sector).

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View all SEC Filings for Metsera, Inc. (MTSR).

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Recent Insider Transactions

Transaction Date Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Nov. 13, 2025 FMR LLC Not found J Common Stock 2230450 $0.00 0.0000 105,376,189 100.00% 2.12%
Nov. 13, 2025 FMR LLC Not found J Common Stock 3010 $0.00 0.0000 105,376,189 100.00% 0.00%
Nov. 13, 2025 ARCH Venture Partners XII, LLC Director D Common Stock 18503128 $0.00 0.0000 105,376,189 100.00% 17.56%
Nov. 13, 2025 ARCH Venture Partners XII, LLC Director D Common Stock 8313680 $0.00 0.0000 105,376,189 100.00% 7.89%
Nov. 13, 2025 Hubbard Brian CHIEF SCIENTIFIC OFFICER D Stock Option (right to buy) 120000 $0.00 0.0000 105,376,189 100.00% 0.11%
Nov. 13, 2025 Burow Kristina Not found D Stock Option (right to buy) 16125 $0.00 0.0000 105,376,189 100.00% 0.02%
Nov. 13, 2025 Marso Steven CHIEF MEDICAL OFFICER D Common Stock 17000 $0.00 0.0000 105,376,189 100.00% 0.02%
Nov. 13, 2025 Marso Steven CHIEF MEDICAL OFFICER A Restricted Stock Unit 17000 $0.00 17,000.0000 105,376,189 9999.99% 0.02%
Nov. 13, 2025 Marso Steven CHIEF MEDICAL OFFICER D Stock Option (right to buy) 120000 $0.00 0.0000 105,376,189 100.00% 0.11%
Nov. 13, 2025 Marso Steven CHIEF MEDICAL OFFICER D Stock Option (right to buy) 829885 $0.00 0.0000 105,376,189 100.00% 0.79%
Nov. 13, 2025 Marso Steven CHIEF MEDICAL OFFICER D Stock Option (right to buy) 21279 $0.00 0.0000 105,376,189 100.00% 0.02%
Nov. 13, 2025 BERNS PAUL L Not found D Common Stock 4031 $0.00 0.0000 105,376,189 100.00% 0.00%
Nov. 13, 2025 BERNS PAUL L Not found D Common Stock 7523682 $0.00 0.0000 105,376,189 100.00% 7.14%
Nov. 13, 2025 BERNS PAUL L Not found D Common Stock 8313680 $0.00 0.0000 105,376,189 100.00% 7.89%
Nov. 13, 2025 BERNS PAUL L Not found D Common Stock 957559 $0.00 0.0000 105,376,189 100.00% 0.91%
Nov. 13, 2025 BERNS PAUL L Not found A Restricted Stock Unit 4031 $0.00 4,031.0000 105,376,189 9999.99% 0.00%
Nov. 13, 2025 BERNS PAUL L Not found D Stock Option (right to buy) 24188 $0.00 0.0000 105,376,189 100.00% 0.02%
Nov. 13, 2025 BERNS PAUL L Not found D Stock Option (right to buy) 223430 $0.00 0.0000 105,376,189 100.00% 0.21%
Nov. 13, 2025 Lang Matthew CHIEF LEGAL OFFICER D Common Stock 12500 $0.00 0.0000 105,376,189 100.00% 0.01%
Nov. 13, 2025 Lang Matthew CHIEF LEGAL OFFICER A Restricted Stock Unit 12500 $0.00 12,500.0000 105,376,189 9999.99% 0.01%
Nov. 13, 2025 Lang Matthew CHIEF LEGAL OFFICER D Stock Option (right to buy) 46875 $0.00 0.0000 105,376,189 100.00% 0.04%
Nov. 13, 2025 Lang Matthew CHIEF LEGAL OFFICER D Stock Option (right to buy) 325000 $0.00 0.0000 105,376,189 100.00% 0.31%
Nov. 13, 2025 Population Health Partners GP, LLC Not found D Common Stock 127675 $0.00 0.0000 105,376,189 100.00% 0.12%
Nov. 13, 2025 Population Health Partners GP, LLC Not found D Common Stock 12639787 $0.00 0.0000 105,376,189 100.00% 12.00%
Nov. 13, 2025 Burow Kristina Not found D Common Stock 2688 $0.00 0.0000 105,376,189 100.00% 0.00%
Nov. 13, 2025 Burow Kristina Not found D Common Stock 17070904 $0.00 0.0000 105,376,189 100.00% 16.20%
Nov. 13, 2025 Burow Kristina Not found D Common Stock 18503128 $0.00 0.0000 105,376,189 100.00% 17.56%
Nov. 13, 2025 Burow Kristina Not found D Common Stock 7523682 $0.00 0.0000 105,376,189 100.00% 7.14%
Nov. 13, 2025 Burow Kristina Not found D Common Stock 8313680 $0.00 0.0000 105,376,189 100.00% 7.89%
Nov. 13, 2025 Burow Kristina Not found A Restricted Stock Unit 2688 $0.00 2,688.0000 105,376,189 9999.99% 0.00%
Nov. 13, 2025 Burow Kristina Not found D Stock Option (right to buy) 148953 $0.00 0.0000 105,376,189 100.00% 0.14%
Nov. 11, 2025 Validae Health, L.P. Not found J Common Stock 12767462 $0.00 0.0000 105,376,189 100.00% 12.12%
Nov. 13, 2025 Pinto Joshua Not found D Common Stock 2688 $0.00 0.0000 105,376,189 100.00% 0.00%
Nov. 13, 2025 Pinto Joshua Not found A Restricted Stock Unit 2688 $0.00 2,688.0000 105,376,189 9999.99% 0.00%
Nov. 13, 2025 Pinto Joshua Not found D Stock Option (right to buy) 16125 $0.00 0.0000 105,376,189 100.00% 0.02%
Nov. 13, 2025 Pinto Joshua Not found D Stock Option (right to buy) 148953 $0.00 0.0000 105,376,189 100.00% 0.14%
Nov. 13, 2025 Stonehouse Jon P Not found D Common Stock 2688 $0.00 0.0000 105,376,189 100.00% 0.00%
Nov. 13, 2025 Stonehouse Jon P Not found A Restricted Stock Unit 2688 $0.00 2,688.0000 105,376,189 9999.99% 0.00%
Nov. 13, 2025 Stonehouse Jon P Not found D Stock Option (right to buy) 47730 $0.00 0.0000 105,376,189 100.00% 0.05%
Nov. 13, 2025 Hubbard Brian CHIEF SCIENTIFIC OFFICER D Common Stock 17000 $0.00 0.0000 105,376,189 100.00% 0.02%
Nov. 13, 2025 Hubbard Brian CHIEF SCIENTIFIC OFFICER A Restricted Stock Unit 17000 $0.00 17,000.0000 105,376,189 9999.99% 0.02%
Nov. 13, 2025 Hubbard Brian CHIEF SCIENTIFIC OFFICER D Stock Option (right to buy) 319186 $0.00 0.0000 105,376,189 100.00% 0.30%
Nov. 13, 2025 Hubbard Brian CHIEF SCIENTIFIC OFFICER D Stock Option (right to buy) 106395 $0.00 0.0000 105,376,189 100.00% 0.10%
Nov. 13, 2025 Visioli Christopher CHIEF FINANCIAL OFFICER D Common Stock 21250 $0.00 0.0000 105,376,189 100.00% 0.02%
Nov. 13, 2025 Visioli Christopher CHIEF FINANCIAL OFFICER A Restricted Stock Unit 21250 $0.00 21,250.0000 105,376,189 9999.99% 0.02%
Nov. 13, 2025 Visioli Christopher CHIEF FINANCIAL OFFICER D Stock Option (right to buy) 150000 $0.00 0.0000 105,376,189 100.00% 0.14%
Nov. 13, 2025 Visioli Christopher CHIEF FINANCIAL OFFICER D Stock Option (right to buy) 255349 $0.00 0.0000 105,376,189 100.00% 0.24%
Nov. 13, 2025 Visioli Christopher CHIEF FINANCIAL OFFICER D Stock Option (right to buy) 340465 $0.00 0.0000 105,376,189 100.00% 0.32%
Nov. 13, 2025 MEANWELL CLIVE EXECUTIVE CHAIRMAN D Common Stock 5375 $0.00 0.0000 105,376,189 100.00% 0.01%
Nov. 13, 2025 MEANWELL CLIVE EXECUTIVE CHAIRMAN D Common Stock 12767462 $0.00 0.0000 105,376,189 100.00% 12.12%
Nov. 13, 2025 MEANWELL CLIVE EXECUTIVE CHAIRMAN A Restricted Stock Unit 5375 $0.00 5,375.0000 105,376,189 9999.99% 0.01%
Nov. 13, 2025 MEANWELL CLIVE EXECUTIVE CHAIRMAN D Stock Option (right to buy) 32250 $0.00 0.0000 105,376,189 100.00% 0.03%
Nov. 13, 2025 MEANWELL CLIVE EXECUTIVE CHAIRMAN D Stock Option (right to buy) 297907 $0.00 0.0000 105,376,189 100.00% 0.28%
Nov. 13, 2025 Bernard Christopher Whitten See Remarks D Common Stock 21250 $0.00 0.0000 105,376,189 100.00% 0.02%
Nov. 13, 2025 Bernard Christopher Whitten See Remarks D Common Stock 12767462 $0.00 0.0000 105,376,189 100.00% 12.12%
Nov. 13, 2025 Bernard Christopher Whitten See Remarks A Restricted Stock Unit 21250 $0.00 21,250.0000 105,376,189 9999.99% 0.02%
Nov. 13, 2025 Bernard Christopher Whitten See Remarks D Stock Option (right to buy) 348750 $0.00 0.0000 105,376,189 100.00% 0.33%
Nov. 13, 2025 Bernard Christopher Whitten See Remarks D Stock Option (right to buy) 1702328 $0.00 0.0000 105,376,189 100.00% 1.62%
Nov. 10, 2025 FMR LLC Not found G Common Stock 860722 $0.00 2,233,460.0000 105,376,189 27.82% 0.82%
Nov. 3, 2025 FMR LLC Not found J Common Stock 2115 $0.00 3,094,182.0000 105,050,219 0.07% 0.00%
Nov. 3, 2025 FMR LLC Not found J Common Stock 47843 $0.00 3,094,182.0000 105,050,219 1.52% 0.05%
Nov. 3, 2025 FMR LLC Not found J Common Stock 47843 $0.00 3,142,025.0000 105,050,219 1.55% 0.05%
Nov. 3, 2025 FMR LLC Not found J Common Stock 3189540 $0.00 3,094,182.0000 105,050,219 50.76% 3.04%
Nov. 3, 2025 FMR LLC Not found J Common Stock 2356274 $0.00 5,450,456.0000 105,050,219 76.15% 2.24%
Nov. 3, 2025 FMR LLC Not found J Common Stock 2617340 $0.00 3,094,182.0000 105,050,219 548.89% 2.49%
Nov. 3, 2025 FMR LLC Not found J Common Stock 2356081 $0.00 3,094,182.0000 105,050,219 43.23% 2.24%
Nov. 3, 2025 FMR LLC Not found S Common Stock 193 $61.23 5,450,263.0000 105,050,219 0.00% 0.00%
Oct. 6, 2025 FMR LLC Not found G Common Stock 633715 $0.00 3,664,267.0000 105,050,219 14.74% 0.60%
Sept. 2, 2025 FMR LLC Not found J Common Stock 1107547 $0.00 1,107,547.0000 105,050,219 9999.99% 1.05%
Sept. 2, 2025 FMR LLC Not found J Common Stock 20250 $0.00 4,323,798.0000 105,050,219 0.47% 0.02%
Sept. 2, 2025 FMR LLC Not found J Common Stock 1134258 $0.00 4,323,798.0000 105,050,219 35.56% 1.08%
Sept. 2, 2025 FMR LLC Not found S Common Stock 268 $36.00 4,323,798.0000 105,050,219 0.01% 0.00%
Sept. 2, 2025 FMR LLC Not found J Common Stock 997044 $0.00 4,324,066.0000 105,050,219 18.74% 0.95%
Sept. 2, 2025 FMR LLC Not found J Common Stock 1350000 $0.00 4,323,798.0000 105,050,219 23.79% 1.29%
Sept. 2, 2025 FMR LLC Not found J Common Stock 20250 $0.00 4,344,048.0000 105,050,219 0.47% 0.02%
Sept. 2, 2025 FMR LLC Not found J Common Shares 895 $0.00 895.0000 105,050,219 9999.99% 0.00%
Sept. 2, 2025 FMR LLC Not found J Common Stock 997312 $0.00 5,321,110.0000 105,050,219 23.07% 0.95%
May 20, 2025 Lang Matthew Chief Legal Officer A Stock Option (Right to Buy) 46875 $0.00 46,875.0000 105,050,219 9999.99% 0.04%
May 20, 2025 Pinto Joshua Not found A Stock Option (Right to Buy) 16125 $0.00 165,078.0000 105,050,219 10.83% 0.02%
May 20, 2025 Visioli Christopher Chief Financial Officer A Stock Option (Right to Buy) 150000 $0.00 150,000.0000 105,050,219 9999.99% 0.14%
May 20, 2025 Bernard Christopher Whitten President and CEO A Stock Option (Right to Buy) 348750 $0.00 348,750.0000 105,050,219 9999.99% 0.33%
May 20, 2025 BERNS PAUL L Not found A Stock Option (Right to Buy) 24188 $0.00 24,188.0000 105,050,219 9999.99% 0.02%
May 20, 2025 Hubbard Brian Chief Scientific Officer A Stock Option (Right to Buy) 120000 $0.00 120,000.0000 105,050,219 9999.99% 0.11%
May 20, 2025 Marso Steven Chief Medical Officer A Stock Option (Right to Buy) 120000 $0.00 120,000.0000 105,050,219 9999.99% 0.11%
May 20, 2025 Burow Kristina Not found A Stock Option (Right to Buy) 16125 $0.00 16,125.0000 105,050,219 9999.99% 0.02%
May 20, 2025 MEANWELL CLIVE Executive Chairman A Stock Option (Right to Buy) 32250 $0.00 32,250.0000 105,050,219 9999.99% 0.03%
May 22, 2025 Pinto Joshua Not found G Stock Option (Right to Buy) 148953 $0.00 148,953.0000 105,050,219 9999.99% 0.14%
May 22, 2025 Pinto Joshua Not found G Stock Option (Right to Buy) 148953 $0.00 148,953.0000 105,050,219 50.00% 0.14%
April 28, 2025 Stonehouse Jon P Not found A Stock Option (Right to Buy) 47730 $19.81 47,730.0000 105,050,219 9999.99% 0.05%
Feb. 3, 2025 FMR LLC Not found C Series A Preferred Stock 3120934 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 FMR LLC Not found C Series Seed Preferred Stock 1418606 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 FMR LLC Not found C Common Stock 3120934 $0.00 4,539,540.0000 0 220.00% 0.00%
Feb. 3, 2025 FMR LLC Not found C Common Stock 1418606 $0.00 1,418,606.0000 0 9999.99% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found C Series A Convertible Preferred Stock 15000000 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found C Series B Convertible Preferred Stock 2678571 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found C Series A Convertible Preferred Stock 15000000 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found C Series B Convertible Preferred Stock 2678571 $0.00 0.0000 0 100.00% 0.00%
Jan. 30, 2025 Wellington Biomedical Innovation Master Investors (Cayman) II L.P. Not found C Common Stock 1857699 $0.00 1,857,699.0000 0 9999.99% 0.00%
Jan. 30, 2025 Wellington Biomedical Innovation Master Investors (Cayman) II L.P. Not found C Series B Preferred Stock 4365079 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 Burow Kristina Not found C Series B Convertible Preferred Stock 2678571 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 Burow Kristina Not found C Series A Convertible Preferred Stock 15000000 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 Burow Kristina Not found C Series B Convertible Preferred Stock 2678571 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 Burow Kristina Not found C Series A Convertible Preferred Stock 15000000 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 Burow Kristina Not found C Series Seed Preferred Stock 19933333 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 Burow Kristina Not found P Common Stock 789998 $18.00 8,313,680.0000 0 10.50% 0.00%
Feb. 3, 2025 Burow Kristina Not found C Common Stock 7523682 $0.00 7,523,682.0000 0 9999.99% 0.00%
Feb. 3, 2025 Burow Kristina Not found P Common Stock 1432224 $18.00 18,503,128.0000 0 8.39% 0.00%
Feb. 3, 2025 Burow Kristina Not found C Common Stock 16006949 $0.00 17,070,904.0000 0 1504.48% 0.00%
Feb. 3, 2025 BERNS PAUL L Not found C Common Stock 7523682 $0.00 8,481,241.0000 0 785.71% 0.00%
Feb. 3, 2025 BERNS PAUL L Not found P Common Stock 789998 $18.00 9,271,239.0000 0 9.31% 0.00%
Feb. 3, 2025 BERNS PAUL L Not found C Series A Convertible Preferred Stock 15000000 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found C Common Stock 16006949 $0.00 17,070,904.0000 0 1504.48% 0.00%
Feb. 3, 2025 BERNS PAUL L Not found C Series B Convertible Preferred Stock 2678571 $0.00 0.0000 0 100.00% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found C Common Stock 7523682 $0.00 7,523,682.0000 0 9999.99% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found P Common Stock 1432224 $18.00 18,503,128.0000 0 8.39% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found P Common Stock 789998 $18.00 8,313,680.0000 0 10.50% 0.00%
Feb. 3, 2025 ARCH Venture Partners XII, LLC Not found C Series Seed Preferred Stock 19933333 $0.00 0.0000 0 100.00% 0.00%