M
$ Value
$0
Shares
18,750
Price
$0
Filed
Nov 12
Insider
Name
WEAVER GREGORY L
Title
Chief Financial Officer
CIK
0001251779
Roles
Officer
Transaction Details
Transaction Date
2025-11-11
Code
M
Table
Derivative
Ownership
Direct
Equity Swap
No
Shares After
56,250
Footnotes
Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested. | Vesting transaction: Shares surrendered to the Issuer solely to cover taxes associated with vesting of RSUs. | The RSUs become vested over four (4) years with 25% of the shares vesting on November 11, 2025, 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
WEAVER GREGORY L's History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2026-04-01 | ALT | ▲ | $31K ★ |
| 2026-03-06 | ALT | ▲ | $18K |
| 2026-02-26 | ALT | A | $0 |
| 2026-02-26 | ALT | A | $0 |
| 2025-11-11 | ALT | M | $0 |
| 2025-11-11 | ALT | F | $24K |
| 2025-11-11 | ALT | M | $0 |
| 2025-10-01 | ALT | A | $0 |
| 2025-10-01 | 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 |