← Back

$ Value

$0

Shares

46,875

Price

$0

Filed

May 22

Insider

Name

Lang Matthew

Title

Chief Legal Officer

CIK

0001712069

Roles

Officer

Transaction Details

Transaction Date

2025-05-20

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

46,875

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.

0000950170-25-076571

Form Type

4

Issuer CIK

0002040807

Lang Matthew's History

Date Ticker Type Value
2026-04-15 GPCR A $0
2026-04-15 GPCR A $0
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.