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$ Value

$0

Shares

1,543,000

Price

$0

Filed

Mar 18

Insider

Name

Lo Steven

Title

President, Chief Exec Officer

CIK

0001501959

Roles

Director Officer

Transaction Details

Transaction Date

2026-03-16

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

1,543,000

Footnotes

Grant of shares upon vesting of restricted stock units. 25% of the shares underlying the award shall vest on each anniversary of the vesting commencement date of March 16, 2026, so that the restricted stock units would be fully vested on the fourth anniversary of the vesting commencement date. | The shares subject to this stock option shall vest as to 25% of the shares underlying the grant on March 16, 2027, the first anniversary of the date that vesting commenced, and thereafter in 36 equal monthly installments such that the stock option shall be fully vested on March 16, 2030.

Filing Info

Accession No.

0001437749-26-008925

Form Type

4

Issuer CIK

0000072444

Lo Steven's History

Date Ticker Type Value
2026-03-24 VXRT F $87K
2026-03-18 VXRT F $14K
2026-03-16 VXRT A $0
2026-03-16 VXRT A $0
2025-12-04 VXRT A $0
2025-12-04 VXRT F $20K
2025-05-19 VXRT $49K

Other Insiders at VXRT (90d)

Insider Bought Sold Last
Lo Steven
President, Chief Exec Officer
2026-03-24
Tucker Sean
SVP, Chief Scientific Officer
2026-03-28
Cummings James F.
Chief Medical Officer
2026-03-28
Berg Edward B
SVP, General Counsel
2026-03-24
Grasman Jeroen Nicolaas
Chief Financial Officer
2026-03-16