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United States Biotechnology & Medical Research

Metsera Inc (MTSR)

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Ticker: MTSR Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
FMR LLC
See Remark 1
1 sale — total 11,817 USD
Sale 3 Nov 2025
Value US$2,807,986.82 | Price 484.20 | Shares 62,850
Sale 2 Sep 2025
Value US$1,183,141.44 | Price 119.07 | Shares 55,239
Buy 3 Feb 2025
Value US$14,219,964.00 | Price 18.00 | Shares 789,998
Buy 3 Feb 2025
Value US$25,780,032.00 | Price 18.00 | Shares 1,432,224
Buy 3 Feb 2025
Value US$14,219,964.00 | Price 18.00 | Shares 789,998
Buy 3 Feb 2025
Value US$25,780,032.00 | Price 18.00 | Shares 1,432,224
Buy 3 Feb 2025
Value US$14,219,964.00 | Price 18.00 | Shares 789,998
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-11-05 2025-11-03 S Sale
3.5
FMR LLC

See Remark 1

Large shareholder
62,850 +37.7%
484.20
US$2,807,987 		62,850 +37.7% 484.20 US$2,807,987
2025-09-04 2025-09-02 S Sale
3.5
FMR LLC

See Remark 1

Large shareholder
55,239 +28.8%
119.07
US$1,183,141 		55,239 +28.8% 119.07 US$1,183,141
2025-02-03 2025-02-03 B Purchase
3.2
Burow Kristina
Non-Executive Director Large shareholder
86,005 +28.9%
444.90
US$3,206,061 		86,005 +28.9% 444.90 US$3,206,061
2025-02-03 2025-02-03 B Purchase
3.2
Burow Kristina
Non-Executive Director Large shareholder
1,432,224 +8.4%
18.00
US$25,780,032 		1,432,224 +8.4% 18.00 US$25,780,032
2025-02-03 2025-02-03 B Purchase
3.6
ARCH Venture Partners XII, LLC
Large shareholder
789,998 +10.5%
18.00
US$14,219,964 		789,998 +10.5% 18.00 US$14,219,964
2025-02-03 2025-02-03 B Purchase
3.6
ARCH Venture Partners XII, LLC
Large shareholder
1,432,224 +8.4%
18.00
US$25,780,032 		1,432,224 +8.4% 18.00 US$25,780,032
2025-02-03 2025-02-03 B Purchase
1.5
BERNS PAUL L
Non-Executive Director
789,998 +10.5%
18.00
US$14,219,964 		789,998 +10.5% 18.00 US$14,219,964
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