$ Value
$0
Shares
26,775
Price
$0
Filed
Feb 2
Insider
Name
Garg Vipin K
Title
—
CIK
0001515813
Roles
Transaction Details
Transaction Date
2026-01-30
Code
M
Table
Derivative
Ownership
Direct
Equity Swap
No
Shares After
26,775
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. | These shares were purchased due to participation by the reporting individual in the Issuer's 2019 Employee Stock Purchase Plan ("ESPP"). It pertains to the ESPP purchase period from August 1, 2025 through January 31, 2026 | In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the Issuer's common stock on August 1, 2025 | The RSUs become vested in substantially equal annual installments over the 4 years following January 30, 2023, subject to the reporting person's continued service through the applicable vesting date, and have no expiration date.
Filing Info
Garg Vipin K's History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2026-01-31 | ALT | A | $21K |
| 2026-01-30 | ALT | M | $0 |
| 2026-01-30 | ALT | F | $65K |
| 2026-01-30 | ALT | M | $0 |
| 2026-01-27 | ALT | M | $0 |
| 2026-01-27 | ALT | F | $111K |
| 2026-01-27 | ALT | M | $0 |
| 2026-01-25 | ALT | M | $0 |
| 2026-01-25 | ALT | F | $99K |
| 2026-01-25 | ALT | M | $0 |
Other Insiders at ALT (90d)
| Insider | Bought | Sold | Last |
|---|---|---|---|
|
Durso Jerome Benedict
President and CEO
|
$47K | — | 2026-04-01 |
|
WEAVER GREGORY L
Chief Financial Officer
|
$31K | — | 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 |