Ambiq CTO sells 7,000 shares after option exercise
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Form Type
4
Rhea-AI Filing Summary
Ambiq Micro, Inc. (AMBQ) reported that Chief Technology Officer Hanson Scott McLean exercised stock options for 7,000 shares of common stock at an exercise price of $8.12 per share and then sold 7,000 shares of common stock in three open-market transactions on August 14, 2026, at weighted average prices of $63.2562, $64.4061, and $65.3013 per share. Following the option exercise, McLean held 62,279 stock options directly. All transactions occurred under a Rule 10b5-1 trading plan adopted on May 15, 2026.
Insider Trade Summary 10b5-1
Exercise and Sale: 7,000 shares ($394K approx. pre-tax spread)
Exercise and Sale
5 txns
Insider
Hanson Scott McLean
Role
Chief Technology Officer
Sold
7,000 shs ($451K)
Approx. gross sale proceeds
$451K
Approx. exercise cost
$57K
Approx. pre-tax spread
$394K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F1, F5 | 7,000 | $0.00 | $0.00 |
| Exercise | Common Stock F1 | 7,000 | $8.12 | $57K |
| Sale | Common Stock F1, F2 | 800 | $63.2562 | $51K |
| Sale | Common Stock F1, F3 | 5,400 | $64.4061 | $348K |
| Sale | Common Stock F1, F4 | 800 | $65.3013 | $52K |
Holdings After Transaction:
Stock Option (Right to Buy) — 62,279 contracts (Direct);
Common Stock — 211,226 shares (Direct)
Footnotes (5)
- F1. The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026.
- F2. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $62.74 to $63.61 per share. 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 within the range set forth in this footnote.
- F3. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $63.99 to $64.90 per share. 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 within the range set forth in this footnote.
- F4. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $65.01 to $65.55 per share. 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 within the range set forth in this footnote.
- F5. 1/4 of the shares subject to the option vested on August 16, 2019, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.
Key Figures
Options exercised: 7,000 shares
Option exercise price: $8.12 per share
Shares sold first tranche: 800 shares at $63.2562 per share
+5 more
8 metrics
Options exercised
7,000 shares
Stock Option (Right to Buy) exercised on August 14, 2026
Option exercise price
$8.12 per share
Exercise price for 7,000 stock options converted into common stock
Shares sold first tranche
800 shares at $63.2562 per share
Open-market sale of common stock on August 14, 2026
Shares sold second tranche
5,400 shares at $64.4061 per share
Open-market sale of common stock on August 14, 2026
Shares sold third tranche
800 shares at $65.3013 per share
Open-market sale of common stock on August 14, 2026
Options held after exercise
62,279 options
Total stock options directly held following the reported option exercise
Rule 10b5-1 plan adoption date
May 15, 2026
Date the reporting person adopted the trading plan governing these transactions
Option expiration date
October 1, 2028
Expiration date of the stock option from which 7,000 shares were exercised
Key Terms
Rule 10b5-1 plan, weighted average sale price, Stock Option (Right to Buy), vesting, +1 more
5 terms
Rule 10b5-1 plan regulatory
"The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan"
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
weighted average sale price financial
"The reported price in Column 4 is a weighted average sale price."
Stock Option (Right to Buy) financial
"security_title: Stock Option (Right to Buy)"
vesting financial
"1/4 of the shares subject to the option vested on August 16, 2019"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
exercise or conversion of derivative security financial
"transaction_code_description: Exercise or conversion of derivative security"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transactions did AMBQ’s CTO report on August 14, 2026?
On August 14, 2026, AMBQ’s CTO Hanson Scott McLean exercised 7,000 stock options at $8.12 and sold 7,000 common shares in three open-market transactions at weighted average prices between $63.2562 and $65.3013 per share.
What was the exercise price of the AMBQ stock options exercised by the CTO?
The CTO exercised 7,000 AMBQ stock options with an exercise price of $8.12 per share. These options converted into an equal number of common shares, which were then sold in the market under the reporting person’s disclosed trading plan.
How many Ambiq Micro (AMBQ) stock options does the CTO hold after these transactions?
After these transactions, the CTO directly holds 62,279 stock options of Ambiq Micro. These options relate to a grant that began vesting on August 16, 2019, with additional vesting in equal monthly installments thereafter, subject to continued service.
Were the AMBQ insider transactions executed under a Rule 10b5-1 trading plan?
Yes. The filing states that all reported transactions occurred under a Rule 10b5-1 plan adopted by the reporting person on May 15, 2026. Such plans pre-schedule trades, reducing the significance of trade timing as an information signal.
What vesting schedule applied to the AMBQ stock options exercised by the CTO?
The exercised options followed a vesting schedule where 1/4 vested on August 16, 2019, with 1/48 of the shares vesting monthly thereafter. Vesting was conditioned on the reporting person’s continued service with Ambiq Micro.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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