1,225 AMPH shares were withheld to cover taxes or exercise cost (Officer) | OQRO Insider tradesWhy it stands out
Routine share withholding; mechanical by default.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
All the details
Dates, kept separate
- Transaction date
- Mar 15, 2026
- Reporting period
- Not applicable
- Filed with the SEC
- Mar 17, 2026
OfficerTax withholding
Context
- Classification
tax withholding
Code F — shares delivered to pay exercise price or tax liability
- Planned / mechanical clue
Tax mechanics (code F)
Only flagged when a footnote says so; never inferred
Source receipt
- Record ID
- 0001645326-26-000010
Added to OQROOct 6, 2026, 9:54 PM UTC Data qualityVerified: identifiers matched exactly IssuerAmphastar Pharmaceuticals, Inc. Reporting personRong Zhou Officer titleSENIOR EVP, PRODUCTION CENTER TableNon-derivative (Table I) Transaction dateMar 15, 2026 Acquired / disposedDisposed (D) Shares owned after171,554 Footnotes from the filing
- The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.
Around the same time
Traded Mar 15 · filed 3 days later
Routine share withholding; mechanical by default.
Traded Mar 15 · filed 2 days later
Routine share withholding; mechanical by default.
Traded Mar 15 · filed 2 days later
Routine share withholding; mechanical by default.