Amphastar (AMPH) CFO exercises options and sells 8,180 shares in 10b5-1 trade
Rhea-AI Filing Summary
Amphastar Pharmaceuticals, Inc. director and CFO/EVP/Treasurer William J. Peters reported an options exercise and share sale. On August 7, 2026, he exercised 5,053 Employee Stock Options at an exercise price of $19.79 per share, receiving 5,053 shares of common stock and closing out that option grant. The same day, he sold 8,180 shares of common stock at $22.48 per share in a transaction described as a sale in the open market or a private transaction. The sale was executed pursuant to a Rule 10b5-1 trading plan adopted on March 10, 2026. A related holding footnote states that reported common stock holdings include 910 shares acquired on May 31, 2026 under the company’s 2014 Employee Stock Purchase Plan.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and sale activity reported; no spread calculated
Exercise and Sale
3 txns
Insider
PETERS WILLIAM J
Role
CFO, EVP & TREASURER
Sold
8,180 shs ($184K)
Approx. gross sale proceeds
$184K
Approx. exercise cost
$100K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Employee Stock Option (right to buy) F3 | 5,053 | $0.00 | $0.00 |
| Exercise | Common Stock F1 | 5,053 | $19.79 | $100K |
| Sale | Common Stock F2 | 8,180 | $22.48 | $184K |
Holdings After Transaction:
Employee Stock Option (right to buy) — 0 shares (Direct);
Common Stock — 172,846 shares (Direct)
Footnotes (3)
- F1. Includes 910 shares acquired on May 31, 2026 under the Issuer's 2014 Employee Stock Purchase Plan.
- F2. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2026.
- F3. Shares subject to the option are fully vested and immediately exercisable.
Key Figures
Options Exercised: 5,053 shares
Option Exercise Price: $19.79 per share
Shares Sold: 8,180 shares
+4 more
7 metrics
Options Exercised
5,053 shares
Employee Stock Option exercised on August 7, 2026
Option Exercise Price
$19.79 per share
Exercise price for 5,053 Employee Stock Options
Shares Sold
8,180 shares
Common stock sale on August 7, 2026
Sale Price
$22.48 per share
Price for 8,180 common shares sold
Options Remaining in This Grant
0 shares
Shares subject to the reported option following exercise
ESPP Shares Included
910 shares
Common shares acquired May 31, 2026 under 2014 Employee Stock Purchase Plan
Net Buy/Sell Shares
-8,180 shares
Transaction summary net-sell direction across reported trades
Key Terms
Employee Stock Option, Rule 10b5-1 trading plan, Employee Stock Purchase Plan, Exercise or conversion of derivative security, +1 more
5 terms
Employee Stock Option financial
"Employee Stock Option (right to buy)"
An employee stock option is a promise that lets a worker buy company shares later at a predetermined price, often after they stay for a certain period or meet performance goals — think of it like a coupon that locks in today's price for a future purchase. It matters to investors because options align employees’ incentives with company performance, can increase the number of shares outstanding (dilution) when exercised, and represent a compensation cost that affects reported profits and shareholder value.
Rule 10b5-1 trading plan regulatory
"sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Employee Stock Purchase Plan financial
"Includes 910 shares acquired on May 31, 2026 under the Issuer's 2014 Employee Stock Purchase Plan."
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
Exercise or conversion of derivative security financial
"transaction_code_description":"Exercise or conversion of derivative security"
Sale in open market or private transaction financial
"transaction_code_description":"Sale in open market or private transaction"
FAQ
What did Amphastar (AMPH) CFO William J. Peters report in this Form 4?
He reported exercising 5,053 stock options at $19.79 per share and selling 8,180 common shares at $22.48 per share on August 7, 2026.
Were the Amphastar (AMPH) insider sales under a Rule 10b5-1 plan?
Yes. The filing notes the August 7, 2026 sale of 8,180 shares was made pursuant to a Rule 10b5-1 trading plan adopted on March 10, 2026.
What options did the Amphastar (AMPH) CFO exercise in this Form 4?
He exercised an Employee Stock Option for 5,053 shares of common stock at an exercise price of $19.79 per share; the option was fully vested and immediately exercisable.
AI-generated analysis. How Rhea-AI works. Not financial advice.
