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▼ SELL

$ Value

$91K

Shares

11,143

Price

$8

Filed

May 20

Insider

Name

Calkins Daniel

Title

Chief Financial Officer

CIK

0001951861

Roles

Officer

Transaction Details

Transaction Date

2025-05-20

Code

S

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

114,055

Footnotes

The reported securities were subject to a performance RSU award that was granted on June 18, 2024. 150,000 RSUs vested on May 16, 2025, upon the Issuer's Compensation Committee of the board of directors determining the performance criteria of approval by the FDA of an NDA for the Company's combination therapy of avutometinib and defactinib for the treatment of low-grade serous ovarian cancer had occurred. | The sale reported on this Form 4 represents shares sold by the Reporting Person to satisfy statutory withholding requirements in connection with the vesting of restricted stock units.

Filing Info

Accession No.

0001104659-25-051163

Form Type

4

Issuer CIK

0001526119

Calkins Daniel's History

Date Ticker Type Value
2026-03-20 VSTM A $327
2026-01-21 VSTM A $0
2026-01-12 VSTM $36K
2025-12-24 VSTM $629
2025-09-24 VSTM $231
2025-09-22 VSTM $518
2025-06-23 VSTM $118
2025-06-20 VSTM $21K
2025-05-20 VSTM $91K
2025-05-16 VSTM A $0

Other Insiders at VSTM (90d)

Insider Bought Sold Last
Paterson Dan
President and CEO
$6K 2026-02-04
Calkins Daniel
Chief Financial Officer
2026-03-20