Greedy Insider
Ambiq Micro, Inc. (AMBQ) Insider Trades and Scores
Ambiq Micro, Inc. (AMBQ) insider trades: since Jan 26, 2026, Greedy Insider recorded 0 open-market buys and 79 sales on Form 4 from 8 insiders. The strongest recent filing scored 90 (Strong).
Who bought and who sold
Across the last 79 scoreable Form 4 transactions in AMBQ, 0 were open-market purchases and 79 were sales. The table lists the most recent filings with each one's Greediness Score, so the structurally unusual trades are easy to spot first.
| Insider | Role | Type | Shares | Date | Score | ||
|---|---|---|---|---|---|---|---|
| Esaka Fumihide | CEO | Sell | 500.0 | 24567.0 | 2026-10-15 | 67 | View |
| Esaka Fumihide | CEO | Sell | 500.0 | 25011.0 | 2026-10-15 | 67 | View |
| Esaka Fumihide | CEO | Sell | 2800.0 | 143213.84 | 2026-10-15 | 67 | View |
| Esaka Fumihide | CEO | Sell | 1200.0 | 62225.64 | 2026-10-15 | 67 | View |
| Hanson Scott McLean | Chief Technology Officer | Sell | 600.0 | 29435.52 | 2026-10-15 | 67 | View |
| Hanson Scott McLean | Chief Technology Officer | Sell | 900.0 | 45074.43 | 2026-10-15 | 67 | View |
| Hanson Scott McLean | Chief Technology Officer | Sell | 3700.0 | 189147.7 | 2026-10-15 | 74 | View |
| Hanson Scott McLean | Chief Technology Officer | Sell | 1800.0 | 93350.7 | 2026-10-15 | 69 | View |
| Chen Sean Chihhsiang | President | Sell | 7539.0 | 377922.53 | 2026-10-14 | 76 | View |
| Chen Sean Chihhsiang | President | Sell | 1261.0 | 64980.086 | 2026-10-14 | 67 | View |
The strongest recent filing
Esaka Fumihide (CEO) sold 48,973 shares of Ambiq Micro, Inc. on Sep 1, 2026, a filing that scored 90 (Strong). It scored Strong because a senior insider was trading and it was direct personal ownership. The score describes the filing, not future returns. This is not investment advice.
Cluster activity
A cluster buy is present: 4 insiders (Chen Sean Chihhsiang, ZHANG KER, Esaka Fumihide, Hanson Scott McLean) traded AMBQ the same direction within a 7-day window. Shared conviction is a stronger structural signal than a lone trade.
How this compares with Ambiq Micro, Inc.'s own history
Open-market buys make up 0% of the 79 scoreable AMBQ transactions on record between Jan 26, 2026 and Oct 15, 2026. Comparing a filing with the company's own buy/sell mix is how you tell a routine disposal from an unusual accumulation.
Methodology and sources
Scores come from six published, user-adjustable factors (insider role, cluster activity, trade size versus the insider's own history, position impact, filing urgency, and direct versus indirect ownership). The score describes the filing, not future returns. This is not investment advice.
Key facts
- Scoreable Form 4 transactions on record: 79
- Open-market buys: 0
- Sales: 79
- Distinct insiders: 8
- Strongest recent Greediness Score: 90 (Strong)
Primary sources
Related
- Strongest filing
- AMBQ in the live feed
- How the Greediness Score works
- What is a cluster buy?
- Form 4 transaction codes
The score describes the filing, not future returns. This is not investment advice.