Ambiq MicroAMBQ
Semiconductors & chip supply chain
Insider transactions
Directors, officers and 10% owners, as reported on Forms 3, 4 and 5. Grants, option exercises and shares withheld for tax are shown but not counted as buying or selling.
- Open-market buys
- 0
- Open-market sales
- 50
- Shares bought
- 0
- Shares sold
- 535,773
Past 12 months · $0.00 bought, $34.5M sold
| Filed | Insider | Transaction | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|
| traded Sep 15, 2026 | Scott McLean HansonCTO · Director | Open-market saleForm 4 | 100 | $61.00 | $6,100 | 221,226 |
| traded Sep 15, 2026 | Scott McLean HansonCTO · Director | Open-market saleForm 4 | 4,947 | $60.56 | $299,571 | 221,326 |
| traded Sep 15, 2026 | Scott McLean HansonCTO · Director | Open-market saleForm 4 | 1,953 | $59.53 | $116,270 | 226,273 |
| traded Sep 15, 2026 | Scott McLean HansonCTO · Director | Option exerciseForm 4 | 7,000 | $8.12 | $56,840 | 45,279 |
| traded Sep 15, 2026 | Scott McLean HansonCTO · Director | Option exerciseForm 4 | 7,000 | $8.12 | $56,840 | 228,226 |
| Fumihide EsakaCEO · Director | Option exerciseForm 4 | 13,500 | $8.12 | $109,620 | 473,960 | |
| Fumihide EsakaCEO · Director | Open-market saleForm 4 | 9,615 | $60.55 | $582,169 | 460,560 | |
| Fumihide EsakaCEO · Director | Open-market saleForm 4 | 100 | $61.00 | $6,100 | 460,460 | |
| Fumihide EsakaCEO · Director | Option exerciseForm 4 | 13,500 | $8.12 | $109,620 | 58,507 | |
| Fumihide EsakaCEO · Director | Open-market saleForm 4 | 3,785 | $59.56 | $225,446 | 470,175 | |
| traded Sep 14, 2026 | Sean Chihhsiang ChenCOO · Pres | Option exerciseForm 4 | 15,000 | $8.12 | $121,800 | 135,275 |
| traded Sep 14, 2026 | Sean Chihhsiang ChenCOO · Pres | Option exerciseForm 4 | 15,000 | $8.12 | $121,800 | 134,423 |
| traded Sep 14, 2026 | Sean Chihhsiang ChenCOO · Pres | Open-market saleForm 4 | 1,400 | $60.83 | $85,166 | 120,275 |
| traded Sep 14, 2026 | Sean Chihhsiang ChenCOO · Pres | Open-market saleForm 4 | 11,000 | $60.24 | $662,618 | 121,675 |
| traded Sep 14, 2026 | Sean Chihhsiang ChenCOO · Pres | Open-market saleForm 4 | 2,600 | $59.36 | $154,346 | 132,675 |
| traded Sep 11, 2026 | Fumihide EsakaCEO · Director | Open-market saleForm 4 | 7,917 | $63.86 | $505,564 | 460,460 |
| traded Sep 11, 2026 | Fumihide EsakaCEO · Director | Open-market saleForm 4 | 42,083 | $63.27 | $2.7M | 468,377 |
| traded Sep 11, 2026 | Fumihide EsakaCEO · Director | Option exerciseForm 4 | 50,000 | $12.60 | $630,000 | 510,460 |
| traded Sep 11, 2026 | Fumihide EsakaCEO · Director | Option exerciseForm 4 | 30,993 | $12.60 | $390,512 | 144,279 |
| traded Sep 11, 2026 | Fumihide EsakaCEO · Director | Option exerciseForm 4 | 19,007 | $12.60 | $239,488 | 0 |
| traded Sep 11, 2026 | Ker ZhangDirector | Open-market saleForm 4 | 9,100 | $63.39 | $576,813 | 21,266 |
| traded Sep 11, 2026 | Ker ZhangDirector | Open-market saleForm 4 | 900 | $63.95 | $57,552 | 20,366 |
| traded Sep 4, 2026 | Sean Chihhsiang ChenCOO · Pres | Option exerciseForm 4 | 15,000 | $8.12 | $121,800 | 149,423 |
| traded Sep 4, 2026 | Sean Chihhsiang ChenCOO · Pres | Open-market saleForm 4 | 12,874 | $57.09 | $734,938 | 122,401 |
| traded Sep 4, 2026 | Sean Chihhsiang ChenCOO · Pres | Open-market saleForm 4 | 2,126 | $57.68 | $122,626 | 120,275 |
| traded Sep 4, 2026 | Ker ZhangDirector | Option exerciseForm 4 | 1,785 | $5.88 | $10,496 | 30,551 |
| traded Sep 4, 2026 | Sean Chihhsiang ChenCOO · Pres | Option exerciseForm 4 | 15,000 | $8.12 | $121,800 | 135,275 |
| traded Sep 4, 2026 | Ker ZhangDirector | Open-market saleForm 4 | 185 | $56.92 | $10,530 | 30,366 |
| traded Sep 4, 2026 | Ker ZhangDirector | Option exerciseForm 4 | 1,785 | $5.88 | $10,496 | 0 |
| Fumihide EsakaCEO · Director | Option exerciseForm 4 | 11,027 | $12.60 | $138,940 | 471,487 | |
| Fumihide EsakaCEO · Director | Open-market saleForm 4 | 9,575 | $56.77 | $543,573 | 460,460 | |
| Fumihide EsakaCEO · Director | Open-market saleForm 4 | 1,452 | $56.15 | $81,534 | 470,035 | |
| Fumihide EsakaCEO · Director | Option exerciseForm 4 | 11,027 | $12.60 | $138,940 | 19,007 | |
| traded Sep 1, 2026 | Fumihide EsakaCEO · Director | Option exerciseForm 4 | 48,973 | $12.60 | $617,060 | 509,433 |
| traded Sep 1, 2026 | Fumihide EsakaCEO · Director | Open-market saleForm 4 | 48,973 | $56.39 | $2.8M | 460,460 |
| traded Sep 1, 2026 | Fumihide EsakaCEO · Director | Option exerciseForm 4 | 48,973 | $12.60 | $617,060 | 30,034 |
| traded Aug 31, 2026 | Fumihide EsakaCEO · Director | Option exerciseForm 4 | 13,500 | $8.12 | $109,620 | 464,689 |
| traded Aug 31, 2026 | Fumihide EsakaCEO · Director | Open-market saleForm 4 | 5,899 | $56.87 | $335,453 | 458,790 |
| traded Aug 31, 2026 | Fumihide EsakaCEO · Director | Open-market saleForm 4 | 2,100 | $58.52 | $122,890 | 451,189 |
| traded Aug 31, 2026 | Fumihide EsakaCEO · Director | Open-market saleForm 4 | 5,600 | $58.46 | $327,359 | 460,460 |