$ Value
$0
Shares
633,700
Price
$0
Filed
Dec 1
Insider
Name
Durso Jerome Benedict
Title
CEO-elect
CIK
0001698665
Roles
Transaction Details
Transaction Date
2025-12-01
Code
A
Table
Derivative
Ownership
Direct
Equity Swap
No
Shares After
633,700
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
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 |