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

Role
Director
Signature
/s/ Matthew Lang, Attorney-in-fact for Joshua Pinto
Stock symbol
MTSR
Transactions as of
May 20, 2025
Transactions value $
$0
Form type
4
Date filed
5/22/2025, 07:42 PM
Previous filing
Feb 20, 2025
Next filing
May 23, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Pinto Joshua Director C/O METSERA, INC. 3 WORLD TRADE CENTER, 175 GREENWICH STREET, NEW YORK /s/ Matthew Lang, Attorney-in-fact for Joshua Pinto 2025-05-22 0001992595

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
transaction MTSR Stock Option (Right to Buy) Gift $0 -149K -100% $0.00 0 May 22, 2025 Common Stock 149K $4.33 Direct F2, F3
transaction MTSR Stock Option (Right to Buy) Gift $0 +149K $0.00 149K May 22, 2025 Common Stock 149K $4.33 By LLC F2, F3
* 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.
F2 Reflects securities transferred by the Reporting Person to Maple DE Holdings LLC (the "LLC"). The units of the LLC are held by a trust for which the Reporting Person exercises investment control and is a beneficiary.
F3 The options were granted on September 27, 2024. The options vest and become exercisable in 36 substantially equal monthly installments following the grant date.

Remarks:

Exhibit List - Exhibit 24 - Power of Attorney