--- title: "Ambiq's officers have sold at every price from $72 down to $49" description: "Form 4s filed October 16 add $1.38 million of October 14-15 sales by Ambiq's COO, CTO and CEO under pre-set 10b5-1 plans, taking the C-suite's ten-day total to about $4.5 million. At $49.88, the stock sits far under the $78 of June's offering, and the $85 and $90 analyst targets now rest on a chip ramp that has not shipped." publisher: "The Inference" section: "Markets" published: 2026-10-17T14:05:38.137Z modified: 2026-10-17T14:05:38.137Z canonical: https://theinference.org/article/ambiq-s-officers-have-sold-at-every-price-from-72-down-to-49 language: en keywords: "Insider Selling, Ambiq Micro, Semiconductors, Analyst Targets, Stock Offerings" --- # Ambiq's officers have sold at every price from $72 down to $49 > Form 4s filed October 16 add $1.38 million of October 14-15 sales by Ambiq's COO, CTO and CEO under pre-set 10b5-1 plans, taking the C-suite's ten-day total to about $4.5 million. At $49.88, the stock sits far under the $78 of June's offering, and the $85 and $90 analyst targets now rest on a chip ramp that has not shipped. [Three more Form 4s](https://www.sec.gov/Archives/edgar/data/1500412/000207855926000016/0002078559-26-000016-index.htm) landed on October 16, and together they say something plain: [Ambiq Micro](https://theinference.org/markets/companies/ambiq-micro)'s officers will sell at any price the market offers them. President and chief operating officer Sean Chen sold $772,000 of stock on October 14, and chief technology officer Scott Hanson and chief executive [Fumihide Esaka](https://theinference.org/markets/people/fumihide-esaka) followed on October 15 with $357,000 and $255,000 [1][2][3]. Added to [the $3.1 million its four top officers reported in the week ending October 11](https://theinference.org/article/ambiq-s-four-top-officers-sold-3-1-million-of-stock-as-analysts-set-85-and-90-targets), about $4.5 million has left the C-suite in ten days, and none of the filings reports a purchase [5]. Ambiq, based in Austin, builds the ultra-low-power processors that run AI on battery-powered devices. ## The sales run on plans set months ago Every sale in the new filings worked the same way: options struck at $8.12 were exercised and the shares sold the same day, under Rule 10b5-1 plans, [the pre-set trading schedules adopted on May 15 and June 5](https://www.sec.gov/Archives/edgar/data/1500412/000207833926000020/0002078339-26-000020-index.htm) [1][2][3]. Chen's own plan sold at $66 to $72 in the first week of October and at $50 to $54 on October 14 [1][5]. Each of the three kept a six-figure holding. The wave began after insider lock-ups expired in late August [5], and it has now run straight through a falling market: Ambiq closed at $55.86 on October 13 [5], then finished the week at $49.88, far below [the $78 the company charged for its own shares in its June offering](https://www.stocktitan.net/news/AMBQ/) [4][7]. None of this is a verdict on the business; it is supply on a timer. *Chart: **Four officers, ten days, about $4.5 million out** Bar chart of Ambiq Micro officer stock sale proceeds over ten days: COO Chen $1.7M, CEO Esaka $1.4M, CTO Hanson $1.0M, CFO Winzeler $0.4M* *Form 4 sale proceeds, October 2 to 15, 2026. First-week figures from The Inference's October 14 tally of filings reported October 6 to 11; October 14-15 sales from Form 4s filed October 16. [1][2][3][5][9]* ## The analyst targets are pricing a ramp that has not shipped The demand underneath is real. [Second-quarter sales rose 90 percent from a year earlier](https://finance.yahoo.com/markets/stocks/articles/why-ambiq-micro-inc-ambq-153002046.html), a fifth straight quarter of sequential growth [6]. But [Stifel](https://theinference.org/markets/companies/stifel)'s $85 target, [Jefferies](https://theinference.org/markets/companies/jefferies)' $90 and a seven-analyst average near $88 are pricing the hop after that: first revenue from the Apollo330 Plus and Apollo510 Light chips, meant to carry Ambiq beyond wearables and into customer devices early next year [5][6]. Ambiq still loses money, guides the third quarter to $36-37 million, and its own forecast implies slower sequential growth and a wider loss than the second quarter's [6][8]. *Chart: **Revenue has risen five straight quarters; the guide implies a slower step** Column chart of Ambiq Micro's quarterly revenue, rising from $15.21 million in Q1 2024 to $33.9 million in Q2 2026, with the third-quarter 2026 guidance of $36 to $37 million shown as an estimate* *Quarterly revenue in US$ millions from Ambiq Micro's SEC filings. Q3 '26e is the company's own guidance of $36-37 million, plotted at the midpoint with its range. Q2 2026 revenue of $33.9 million was up 89.7 percent year over year. Sources: [10][6][8] [10][6][8]* ## The third-quarter report decides it The plans will keep converting those $8.12 options into cash whatever the print says; that is what mechanical means [1][2][3]. The analysts' targets cannot say the same, because a slipped ramp moves them long before it moves a schedule. Anyone holding Ambiq at $49.88 is holding that asymmetry: targets that need the new chips to arrive on time, against officers who sell on schedule regardless. ## Takeaway About $4.5 million has left Ambiq's C-suite in ten days under 10b5-1 plans set in May and June; at $49.88 the stock sits below the $78 June offering price and roughly 43 percent under the seven-analyst average target near $88, which depends on chips that have not shipped. ## Sources 1. [SEC Form 4, Ambiq Micro (AMBQ), Sean Chihhsiang Chen, President and COO, filed October 16, 2026](https://www.sec.gov/Archives/edgar/data/1500412/000207855926000016/0002078559-26-000016-index.htm) 2. [SEC Form 4, Ambiq Micro (AMBQ), Scott McLean Hanson, Chief Technology Officer and director, filed October 16, 2026](https://www.sec.gov/Archives/edgar/data/1500412/000207833926000020/0002078339-26-000020-index.htm) 3. [SEC Form 4, Ambiq Micro (AMBQ), Fumihide Esaka, Chief Executive Officer and director, filed October 16, 2026](https://www.sec.gov/Archives/edgar/data/1500412/000207845426000020/0002078454-26-000020-index.htm) 4. [Yahoo Finance Australia, Ambiq Micro (AMBQ) quote and options page, close of October 16, 2026](https://au.finance.yahoo.com/quote/AMBQ/options/?date=1795132800&straddle=false&type=all) 5. [The Inference, "Ambiq's four top officers sold $3.1 million of stock as analysts set $85 and $90 targets", October 14, 2026](https://theinference.org/article/ambiq-s-four-top-officers-sold-3-1-million-of-stock-as-analysts-set-85-and-90-targets) 6. [Zacks Equity Research via Yahoo Finance, "Why Is Ambiq Micro, Inc. (AMBQ) Down 2.8% Since Last Earnings Report?", September 10, 2026](https://finance.yahoo.com/markets/stocks/articles/why-ambiq-micro-inc-ambq-153002046.html) 7. [StockTitan, Ambiq Micro (AMBQ) news feed: Q2 2026 results and June 2026 offering announcements, accessed October 17, 2026](https://www.stocktitan.net/news/AMBQ/) 8. [Seeking Alpha, "Ambiq Micro: An AI Derivative Has Come To Life, Operating Leverage Is Required", October 10, 2026](https://seekingalpha.com/article/4953280-ambiq-micro-ai-derivative-come-to-life-operating-leverage-required) 9. [MT Newswires via Yahoo Finance, "Ambiq Micro Insider Sold Shares Worth $1,152,504, According to a Recent SEC Filing", October 7, 2026](https://finance.yahoo.com/markets/stocks/articles/ambiq-micro-insider-sold-shares-075217571.html) 10. [Ambiq Micro, quarterly figures from its SEC filings, retrieved 17 October 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001500412) --- Ambiq's officers have sold at every price from $72 down to $49 — The Inference. Canonical: https://theinference.org/article/ambiq-s-officers-have-sold-at-every-price-from-72-down-to-49