Arkolith/Insider Trading/AMPH/Form 4

Luo Mary Z.

COO, Chief Scientist, Chairman, Director, 10% OwnerAmphastar Pharmaceuticals, Inc. (AMPH) · full profile →Form 4 · filed Mar 10, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Mar 6, 2026Tax withholding(F)3K$19.34$60K1.2M
Mar 6, 2026Tax withholding(F)8K$19.34$150K2.8M

Transaction Codes

F
Shares withheld for taxes

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000889740-26-000003) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML