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$ Value

$0

Shares

348,750

Price

$0

Filed

May 22

Insider

Name

Bernard Christopher Whitten

Title

President and CEO

CIK

0002043354

Roles

Director Officer

Transaction Details

Transaction Date

2025-05-20

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

348,750

Footnotes

The options will vest and become exercisable in 48 substantially equal monthly installments after the date of grant, such that the option will be vested in full on the fourth anniversary of the date of grant, subject to the Reporting Person's continued service through each such vesting date.

Filing Info

Accession No.

0000950170-25-076569

Form Type

4

Issuer CIK

0002040807

Bernard Christopher Whitten's History

Date Ticker Type Value
2025-11-13 MTSR D
2025-11-13 MTSR D
2025-11-13 MTSR A
2025-11-13 MTSR D
2025-11-13 MTSR D
2025-05-20 MTSR A $0

Other Insiders at MTSR (90d)

No other insider activity at this issuer in the last 90 days.