Senior insider sale
CFO, EVP & TREASURER at AMPHASTAR PHARMACEUTICALS, INC. — senior position signals high conviction
$287.4K
12.32K shares
What this filing means
PETERS WILLIAM J plans to sell 12.32K shares of AMPHASTAR PHARMACEUTICALS, INC. valued at approximately $287.4K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 9/21/2026ACC: 0001969223-26-001034
DirectorOfficer· CFO, EVP & TREASURER
Since Mar 2026
12.32K
Shares to sell
$287.4K
Approx. market value
4.14K
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months1
RSU Vesting
NA
3/17/2024
4.14KTotal acquired4.14K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
3/17/2024 | RSU Vesting NA | 4.14K | — |
| Total | 4.14K | ||
Planned & Completed Dispositions2
Completed
—Completed
Units to sell
8.18K
Market value
$183.9K
8/7/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
4.14K
Market value
$103.5K
9/21/2026
Total
Units
12.32K
Value
$287.4K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
8/7/2026 | 8.18K | $183.9K | — | Completed |
| Planned — Approximate Date | ||||
9/21/2026 | 4.14K | $103.5K | NASDAQ | Planned |
| Total | 12.32K | $287.4K | ||