United States Semiconductors & Semiconductor Equipment

Ambiq Micro Inc (AMBQ)

Track

Over the past 90 days, Ambiq Micro Inc. insiders have executed 17 transactions, all of which were sales, totaling approximately $16.3 million in net value. Key executives, including the CEO, CFO, and COO, participated in these divestments. This activity follows a period where the stock price rose 188.7%, despite a recent earnings report missing expectations.
Ticker: AMBQ Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Ambiq Micro Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Chen Timothy
4 sales — total 5,632,525 USD
Sale 27 May 2026
Value US$2,190,708.96 | Price 108.22 | Shares 68,098
Sale 27 May 2026
Value US$4,509,123.93 | Price 195.57 | Shares 59,051
Sale 27 May 2026
Value US$1,933,050.56 | Price 79.72 | Shares 24,248
Sale 27 May 2026
Value US$1,767,343.90 | Price 78.85 | Shares 22,414
Proposed sale 27 May 2026
Value US$879,339.33 | Price 293.05 | Shares 37,355
Sale 15 May 2026
Value US$1,665,454.92 | Price 71.37 | Shares 23,334
Sale 15 May 2026
Value US$2,281,826.02 | Price 70.53 | Shares 32,351
Proposed sale 15 May 2026
Value US$3,947,281.34 | Price 70.89 | Shares 55,685
Sale 14 May 2026
Value US$14,100.00 | Price 70.50 | Shares 200
Sale 14 May 2026
Value US$424,520.96 | Price 69.59 | Shares 6,100
Sale 14 May 2026
Value US$267,631.26 | Price 68.62 | Shares 3,900
Sale 14 May 2026
Value US$5,793.30 | Price 70.65 | Shares 82
Sale 14 May 2026
Value US$1,811,618.96 | Price 69.90 | Shares 25,918
Sale 14 May 2026
Value US$4,201,122.00 | Price 70.02 | Shares 60,000
Proposed sale 14 May 2026
Value US$1,817,410.40 | Price 69.90 | Shares 26,000
Proposed sale 14 May 2026
Value US$706,252.08 | Price 69.24 | Shares 10,200
Proposed sale 14 May 2026
Value US$4,201,122.00 | Price 70.02 | Shares 60,000
Sale 2 Apr 2026
Value US$4,024.29 | Price 26.65 | Shares 151
Sale 2 Apr 2026
Value US$17,185.41 | Price 26.04 | Shares 660
Sale 26 Jan 2026
Value US$310,000.00 | Price 31.00 | Shares 10,000
Sale 26 Jan 2026
Value US$241,800.00 | Price 31.00 | Shares 7,800
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-29 2026-05-27 S Sale
Chen Timothy
Non-Executive Director
68,098 -18.9%
108.22
US$2,190,709 		68,098 -18.9% 108.22 US$2,190,709
2026-05-29 2026-05-27 S Sale
Chen Timothy
Non-Executive Director
59,051 -5.7%
195.57
US$4,509,124 		59,051 -5.7% 195.57 US$4,509,124
2026-05-29 2026-05-27 S Sale
Chen Timothy
Non-Executive Director
25,191 +43.8%
169.87
US$4,637,252 		25,191 +43.8% 169.87 US$4,637,252
2026-05-29 2026-05-27 S Sale
Chen Timothy
Non-Executive Director
22,414 -31.8%
78.85
US$1,767,344 		22,414 -31.8% 78.85 US$1,767,344
2026-05-27 2026-05-27 PrS Proposed sale
Triumph Way Investment Inc

Director

Non-Executive Director
70,592
79.99
US$5,646,654 		70,592 79.99 US$5,646,654
2026-05-18 2026-05-15 S Sale
Chen Sean Chihhsiang

President and COO

Officer
23,334 -16.2%
71.37
US$1,665,455 		23,334 -16.2% 71.37 US$1,665,455
2026-05-18 2026-05-15 S Sale
Chen Sean Chihhsiang

President and COO

Officer
32,351 -18.4%
70.53
US$2,281,826 		32,351 -18.4% 70.53 US$2,281,826
2026-05-15 2026-05-15 PrS Proposed sale
SEAN CHEN

Officer

Officer
55,685
70.89
US$3,947,281 		55,685 70.89 US$3,947,281
2026-05-18 2026-05-14 S Sale
0.8
Hanson Scott McLean

Chief Technology Officer

Executive Director
200 -0.1%
70.50
US$14,100 		200 -0.1% 70.50 US$14,100
2026-05-18 2026-05-14 S Sale
0.8
Hanson Scott McLean

Chief Technology Officer

Executive Director
6,100 -2.9%
69.59
US$424,521 		6,100 -2.9% 69.59 US$424,521
2026-05-18 2026-05-14 S Sale
0.8
Hanson Scott McLean

Chief Technology Officer

Executive Director
3,900 -1.8%
68.62
US$267,631 		3,900 -1.8% 68.62 US$267,631
2026-05-18 2026-05-14 S Sale
2.5
Winzeler Jeffrey G

Chief Financial Officer

Officer
82 -0.1%
70.65
US$5,793 		82 -0.1% 70.65 US$5,793
2026-05-18 2026-05-14 S Sale
2.5
Winzeler Jeffrey G

Chief Financial Officer

Officer
25,918 -21.5%
69.90
US$1,811,619 		25,918 -21.5% 69.90 US$1,811,619
2026-05-18 2026-05-14 S Sale
Esaka Fumihide

Chief Executive Officer

Executive Director
60,000 -13.3%
70.02
US$4,201,122 		60,000 -13.3% 70.02 US$4,201,122
2026-05-14 2026-05-14 PrS Proposed sale
2.5
JEFF G WINZELER

Officer

Officer
26,000
69.90
US$1,817,410 		26,000 69.90 US$1,817,410
2026-05-14 2026-05-14 PrS Proposed sale
0.8
SCOTT HANSON

Officer

Officer
10,200
69.24
US$706,252 		10,200 69.24 US$706,252
2026-05-14 2026-05-14 PrS Proposed sale
FUMIHIDE ESAKA

Officer

Officer
60,000
70.02
US$4,201,122 		60,000 70.02 US$4,201,122
2026-04-06 2026-04-02 S Sale
Connors Michele Kim

General Counsel

Officer
151 -0.2%
26.65
US$4,024 		151 -0.2% 26.65 US$4,024
2026-04-06 2026-04-02 S Sale
Connors Michele Kim

General Counsel

Officer
660 -1.1%
26.04
US$17,185 		660 -1.1% 26.04 US$17,185
2026-01-28 2026-01-26 S Sale
0.8
Hanson Scott McLean

Chief Technology Officer

Executive Director
10,000 -7.5%
31.00
US$310,000 		10,000 -7.5% 31.00 US$310,000
2026-01-28 2026-01-26 S Sale
0.7
TAUTGES JOSEPH A
Non-Executive Director
7,800 -13.8%
31.00
US$241,800 		7,800 -13.8% 31.00 US$241,800
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