CTO Hanson McLean Sells $3.3M in Ambiq Micro Stock After Option Exercise
AMBQ has more than doubled off its 52-week low of $22.12.
Summary
Ambiq Micro CTO Hanson McLean sold $3.28 million of stock after exercising options, continuing a recent pattern of insider selling.
Key Events · Ownership and Investor Activity · AMBQ
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CTO Sells $3.28M in Open Market
Hanson Scott McLean sold 55,000 shares at $59.58-$60.32 per share on August 26-27, 2026, for total proceeds of $3,283,079.
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Option Exercise Precedes Sale
McLean exercised 65,000 stock options at $8.12 per share (total cost $527,800) immediately before selling, locking in a gain of roughly $2.75 million.
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Insider Selling Pattern Continues
This sale follows CEO Fumihide Esaka's Form 144 filed August 14, 2026, for $2.9 million, indicating a broader distribution trend among Ambiq insiders.
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Post-Transaction Holdings
McLean retains 248,726 shares directly after the transactions, representing a meaningful but reduced ownership stake.
Analysis · AMBQ · Manufacturing
Chief Technology Officer Hanson Scott McLean exercised 65,000 options at $8.12 and sold 55,000 shares for $3.28 million on August 26-27, 2026. The sale represents 0.275% of the company's market cap and adds to a pattern of insider selling — CEO Fumihide Esaka filed a Form 144 for $2.9 million just two weeks earlier. While option exercises are routine, the open-market sale of a large block by a key technical leader is a notable distribution signal.
How filings like this one have moved
In the 30 days to Sep 11, 2026, 30.5% of the 1993 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.21%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, AMBQ was trading at $57.92 on NYSE in the Manufacturing sector, with a market capitalization of approximately $1.4B. The 52-week trading range was $22.12 to $91.61. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.