Insider trade

Officer sold ~$239K of AMPH shares in the open market

Traded Sep 16, 2026 · Filed Sep 17, 2026

Why it stands out

Amphstar Pharmaceuticals's SENIOR EVP, PRODUCTION CENTER sold $239K of Amphstar Pharmaceuticals shares. Nobody planned it ahead of time.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Officer$100K–$500K

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$239,404

Shares × reported transaction price

Timing vs results

41 days after results of Aug 6, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Planned / mechanical clue

None found in footnotes

Only flagged when a footnote says so; never inferred

After	Stock	S&P 500	Difference
7 days	+10.6%	+1.3%	+9.4%

Past results only. Not a forecast.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.83 to $24.05, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Scheduled in advance2w ago

3w ago

Derivative exercise or conversion — not an open-market buy.

3w ago

Derivative exercise or conversion — not an open-market buy.