Insider trade

Director sold ~$162K of AMPH shares in the open market

Traded Aug 11, 2026 · Filed Aug 12, 2026

Why it stands out

A board member of Amphstar Pharmaceuticals sold $162K 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

Director$100K–$500K

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$161,852

Shares × reported transaction price

Timing vs results

5 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	+7.4%	−2.0%	+9.4%
30 days	+18.5%	−2.2%	+20.7%

Past results only. Not a forecast.

Automatic sale5w ago

8w ago

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

Scheduled in advance8w ago