Insider trade

Director sold ~$63K of AMPH shares in the open market

Traded Dec 12, 2025 · Filed Dec 15, 2025

Why it stands out

A board member of Amphstar Pharmaceuticals sold $63K 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$25K–$100K

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$62,888

Shares × reported transaction price

Timing vs results

36 days after results of Nov 6, 2025, 76 days before results of Feb 26, 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	+3.3%	+1.3%	+1.9%
30 days	+1.5%	+2.0%	−0.5%
90 days	−24.2%	−1.4%	−22.8%
180 days	−23.0%	+11.2%	−34.2%

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 $25.9225 to $25.945, 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.