Ambiq Micro, Inc.
Ambiq Micro, Inc. (AMBQ) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · AMBQ · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
16
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Ambiq Micro, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
AMBQ insider buying and selling by quarter
AMBQ insider selling · AMBQ insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · AMBQ ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
AMBQ executive sell shares · AMBQ board member insider trading · AMBQ insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Jun 2, 2026 | Winzeler Jeffrey G CFO | Option | 5,952 | $100K | Form 4 |
| May 27, 2026 | Chen Timothy Director | Sale | 22,414 | $1.77M⚡ | Form 4 |
| May 27, 2026 | Chen Timothy Director | Sale | 24,248 | $1.93M⚡ | Form 4 |
| May 27, 2026 | Chen Timothy Director | Sale | 20,666 | $1.67M⚡ | Form 4 |
| May 27, 2026 | Chen Timothy Director | Sale | 3,264 | $266K | Form 4 |
| May 14, 2026 | Winzeler Jeffrey G CFO | Option | 26,000 | $437K | Form 4 |
| May 15, 2026 | Winzeler Jeffrey G CFO | Option | 5,952 | $100K | Form 4 |
| May 14, 2026 | Winzeler Jeffrey G CFO | Sale | 25,918 | $1.81M⚡ | Form 4 |
| May 14, 2026 | Winzeler Jeffrey G CFO | Sale | 82 | $6K | Form 4 |
| May 14, 2026 | Hanson Scott McLean CTO · Director | Option | 10,200 | $83K | Form 4 |
| May 15, 2026 | Hanson Scott McLean CTO · Director | Option | 8,100 | $66K | Form 4 |
| May 14, 2026 | Hanson Scott McLean CTO · Director | Sale | 3,900 | $268K | Form 4 |
| May 14, 2026 | Hanson Scott McLean CTO · Director | Sale | 6,100 | $425K | Form 4 |
| May 14, 2026 | Hanson Scott McLean CTO · Director | Sale | 200 | $14K | Form 4 |
| May 15, 2026 | Chen Sean Chihhsiang President and COO | Option | 55,685 | $327K | Form 4 |
| May 15, 2026 | Chen Sean Chihhsiang President and COO | Sale | 32,351 | $2.28M⚡ | Form 4 |
| May 15, 2026 | Chen Sean Chihhsiang President and COO | Sale | 23,334 | $1.67M⚡ | Form 4 |
| May 14, 2026 | Esaka Fumihide CEO · Director | Option | 60,000 | $487K | Form 4 |
| May 15, 2026 | Esaka Fumihide CEO · Director | Option | 14,537 | $183K | Form 4 |
| May 15, 2026 | Esaka Fumihide CEO · Director | Option | 45,463 | $369K | Form 4 |
| May 14, 2026 | Esaka Fumihide CEO · Director | Sale | 60,000 | $4.20M⚡ | Form 4 |
| Apr 2, 2026 | Connors Michele Kim General Counsel | Sale | 660 | $17K | Form 4 |
| Apr 2, 2026 | Connors Michele Kim General Counsel | Sale | 151 | $4K | Form 4 |
| Mar 6, 2026 | Connors Michele Kim General Counsel | Award | 32,123 | — | Form 4 |
| Mar 6, 2026 | Hanson Scott McLean CTO · Director | Award | 80,308 | — | Form 4 |
Hanson Scott McLean
CTO · Director
Date
May 14
Shares
10,200
Price
$8.12
Value
$83K
Hanson Scott McLean
CTO · Director
Date
May 15
Shares
8,100
Price
$8.12
Value
$66K
Hanson Scott McLean
CTO · Director
Date
May 14
Shares
3,900
Price
$68.62
Value
$268K
Hanson Scott McLean
CTO · Director
Date
May 14
Shares
6,100
Price
$69.59
Value
$425K
Chen Sean Chihhsiang
President and COO
Date
May 15
Shares
55,685
Price
$5.88
Value
$327K
Chen Sean Chihhsiang
President and COO
Date
May 15
Shares
32,351
Price
$70.53
Value
$2.28M ⚡
Chen Sean Chihhsiang
President and COO
Date
May 15
Shares
23,334
Price
$71.37
Value
$1.67M ⚡
Esaka Fumihide
CEO · Director
Date
May 14
Shares
60,000
Price
$70.02
Value
$4.20M ⚡
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About AMBQ insider trading
AMBQ insider trades
Ambiq Micro, Inc. (AMBQ) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Hanson Scott McLean (CTO · Director), Esaka Fumihide (CEO · Director), Winzeler Jeffrey G (CFO). Over the past 12 months, 5 insiders have filed transactions with the SEC. AMBQ insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Ambiq Micro, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
AMBQ insider trading · 5 questionsThe insiders of Ambiq Micro, Inc. (AMBQ) include executives and directors such as Hanson Scott McLean (CTO · Director), Esaka Fumihide (CEO · Director), Winzeler Jeffrey G (CFO), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026