Arkolith/Insider Trading/AMPH/Form 4

Prins Richard K

DirectorAmphastar Pharmaceuticals, Inc. (AMPH) · full profile →Form 4 · filed Nov 25, 2025
Net Selling
Open-Market Buys
$0
Open-Market Sells
$113K
Net Open-Market Flow
-$113K
Transactions
3
2 non-derivative · 1 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Nov 25, 2025Sell(S)4K$27.10$113K35K
Nov 25, 2025Option exercise(M)4K$16.69$70K39K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Nov 25, 2025Option exercise(M)4K—$00

Transaction Codes

S
Open-market sale
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001047579-25-000006) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML