Senior insider sale
SENIOR EVP, PRODUCTION CENTER at AMPHASTAR PHARMACEUTICALS, INC. — senior position signals high conviction
$500.0K
20K shares
What this filing means
ZHOU RONG plans to sell 20K shares of AMPHASTAR PHARMACEUTICALS, INC. valued at approximately $500.0K. 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: 11/28/2025ACC: 0001969223-25-001002
Officer· SENIOR EVP, PRODUCTION CENTER
Since Mar 2026
20K
Shares to sell
$500.0K
Approx. market value
20K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
Stock Option Exercising
N/A
11/28/2025
20KTotal acquired20K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
11/28/2025 | Stock Option Exercising N/A | 20K | — |
| Total | 20K | ||
Planned & Completed Dispositions1
NASDAQPlanned
Units to sell
20K
Market value
$500.0K
11/28/2025
Total
Units
20K
Value
$500.0K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
11/28/2025 | 20K | $500.0K | NASDAQ | Planned |
| Total | 20K | $500.0K | ||