Kristina Burow - May 20, 2025 Form 4 Insider Report for Metsera, Inc. (MTSR)

Role
Director
Signature
/s/ Matthew Lang, Attorney-in-fact for Kristina Burow
Stock symbol
MTSR
Transactions as of
May 20, 2025
Transactions value $
$0
Form type
4
Date filed
5/22/2025, 07:39 PM
Previous filing
Feb 18, 2025
Next filing
May 23, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Burow Kristina Director C/O METSERA, INC. 3 WORLD TRADE CENTER, 175 GREENWICH STREET, NEW YORK /s/ Matthew Lang, Attorney-in-fact for Kristina Burow 2025-05-22 0001569248

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MTSR Stock Option (Right to Buy) Award $0 +16.1K $0.00 16.1K May 20, 2025 Common Stock 16.1K $29.25 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The options will vest and become exercisable in 12 substantially equal monthly installments after the date of grant, such that the option will be vested in full on the first anniversary of the date of grant, subject to the Reporting Person's continued service through each such vesting date.

Remarks:

Exhibit List - Exhibit 24 - Power of Attorney