AMBQ: Congress and insider trades
Who in Congress and inside the company traded AMBQ, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- AMBQ is a listed stock.
- Insiders filed 0 open market buys worth $0 and 11 sells worth $17M, the latest filed 2026-09-09 (9 September 2026).
- Data as of 2026-09-29 (29 September 2026).
Insider trades in AMBQ
as of 2026-09-09| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 9 Sep 2026 | Chen Sean Chihhsiang | sell | 15,000 | $57.17 | $858K | n/a |
| 9 Sep 2026 | ZHANG KER | sell | 185 | $56.92 | $10.5K | n/a |
| 2 Sep 2026 | Esaka Fumihide | sell | 48,973 | $56.39 | $2.8M | n/a |
| 2 Sep 2026 | Esaka Fumihide | sell | 11,027 | $56.69 | $625K | n/a |
| 2 Sep 2026 | Esaka Fumihide | sell | 48,500 | $57.44 | $2.8M | n/a |
| 28 Aug 2026 | Hanson Scott McLean | sell | 27,500 | $59.58 | $1.6M | n/a |
| 28 Aug 2026 | Hanson Scott McLean | sell | 27,500 | $59.80 | $1.6M | n/a |
| 18 Aug 2026 | Esaka Fumihide | sell | 13,500 | $64.39 | $869K | n/a |
| 18 Aug 2026 | Hanson Scott McLean | sell | 7,000 | $64.38 | $451K | n/a |
| 29 May 2026 | Chen Timothy | sell | 70,592 | $79.79 | $5.6M | n/a |
| 6 Apr 2026 | Connors Michele Kim | sell | 811 | $26.15 | $21.2K | n/a |
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Related pages
Frequently asked questions
Who has bought AMBQ?
0 Congress buys by 0 members and 0 insider buys are on file. The tables on this page list every one.
Did buying AMBQ after a disclosure beat the market?
No disclosed buy of this stock has matured 90 days yet. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.