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A

$ Value

$0

Shares

1,824,400

Price

$0

Filed

Dec 1

Insider

Name

Durso Jerome Benedict

Title

CEO-elect

CIK

0001698665

Roles

Director Officer

Transaction Details

Transaction Date

2025-12-01

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

1,824,400

Footnotes

The shares underlying the option become vested and exercisable over four (4) years with 25% of the shares vesting on December 1, 2026, with the remainder vesting in equal monthly installments for the following thirty-six (36) months, subject to the reporting person's continued service on each applicable vesting date. | Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested. | The RSUs become vested over four (4) years with 25% of the shares vesting December 1, 2026, with the remainder vesting in equal annual installments for the following three (3) years, subject to the reporting person's continued service through the applicable vesting date, and have no expiration date.

Filing Info

Accession No.

0001104659-25-117451

Form Type

4

Issuer CIK

0001326190

Durso Jerome Benedict's History

Date Ticker Type Value
2026-04-01 ALT $47K
2026-03-06 ALT $71K
2025-12-22 ALT $52K
2025-12-01 ALT A $0
2025-12-01 ALT A $0
2025-09-25 ALT A $0

Other Insiders at ALT (90d)

Insider Bought Sold Last
Durso Jerome Benedict
President and CEO
$118K 2026-04-01
WEAVER GREGORY L
Chief Financial Officer
$49K 2026-04-01
GILL JOHN $31K 2026-04-06
Garg Vipin K 2026-01-31
Roberts M Scot
Chief Scientific Officer
2026-02-26
Jordt Raymond M
Chief Business Officer
2026-01-31