Ambiq Micro, Inc. (AMBQ) Insider Trading
Over the last 3 months, AMBQ insiders made 0 open-market buys and 8 sales, a net sale of -$4.6M (SEC Form 4). Over the last 6 months, 99 institutions increased and 40 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
8
Net (3m)
-$4.6M
Insider trades by month Buys Sells
Jan
Apr
May
Aug
Context3-month price -26.5%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 28, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Option | 10,000 | $8.12 |
| Aug 28, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Option | 27,500 | $8.12 |
| Aug 28, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Sell | 27,500 | $59.58 |
| Aug 28, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Sell | 22,590 | $59.69 |
| Aug 28, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Sell | 4,910 | $60.32 |
| Aug 18, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Sell | 800 | $63.26 |
| Aug 18, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Option | 7,000 | $8.12 |
| Aug 18, 2026 | Esaka Fumihidedirector, officer: Chief Executive Officer | Sell | 1,500 | $65.26 |
| Aug 18, 2026 | Esaka Fumihidedirector, officer: Chief Executive Officer | Sell | 10,718 | $64.40 |
| Aug 18, 2026 | Esaka Fumihidedirector, officer: Chief Executive Officer | Sell | 1,282 | $63.29 |
| Aug 18, 2026 | Esaka Fumihidedirector, officer: Chief Executive Officer | Option | 13,500 | $8.12 |
| Aug 18, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Sell | 5,400 | $64.41 |
| Jun 10, 2026 | Banks Bernard Bennettdirector | Grant | 4,957 | — |
| Jun 10, 2026 | TAUTGES JOSEPH Adirector | Grant | 4,957 | — |
| Jun 10, 2026 | ZHANG KERdirector | Grant | 4,957 | — |
| Jun 10, 2026 | HSIEH Wen Hsuandirector | Grant | 4,957 | — |
| Jun 10, 2026 | Chen Timothydirector | Grant | 4,957 | — |
| Jun 4, 2026 | Winzeler Jeffrey Gofficer: Chief Financial Officer | Option | 5,952 | $16.80 |
| May 29, 2026 | Chen Timothydirector | Sell | 22,414 | $78.85 |
| May 29, 2026 | Chen Timothydirector | Sell | 24,248 | $79.72 |
| May 29, 2026 | Chen Timothydirector | Sell | 20,666 | $80.61 |
| May 29, 2026 | Chen Timothydirector | Sell | 3,264 | $81.57 |
| May 18, 2026 | Chen Sean Chihhsiangofficer: President and COO | Sell | 23,334 | $71.37 |
| May 18, 2026 | Winzeler Jeffrey Gofficer: Chief Financial Officer | Option | 26,000 | $16.80 |
| May 18, 2026 | Winzeler Jeffrey Gofficer: Chief Financial Officer | Sell | 25,918 | $69.90 |
| May 18, 2026 | Winzeler Jeffrey Gofficer: Chief Financial Officer | Sell | 82 | $70.65 |
| May 18, 2026 | Winzeler Jeffrey Gofficer: Chief Financial Officer | Option | 5,952 | $16.80 |
| May 18, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Option | 10,200 | $8.12 |
| May 18, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Sell | 3,900 | $68.62 |
| May 18, 2026 | Hanson Scott McLeandirector, officer: Chief Technology Officer | Sell | 6,100 | $69.59 |
Source: AMBQ SEC Form 4 filings, latest Aug 28, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their AMBQ positions over the last 6 months (SEC Form 13F).
Increased
99
New positions
136
Reduced
40
Sold out
12
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | New Position | 10.3M | Aug 14, 2026 |
| BlackRock, Inc. | Increased | 1.4M | Aug 7, 2026 |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | New Position | 1.3M | May 15, 2026 |
| BLACKROCK, INC. | Increased | 1.0M | May 13, 2026 |
| T. Rowe Price Investment Management, Inc. | Reduced | 1.0M | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | New Position | 984K | Aug 14, 2026 |
| Atreides Management, LP | Increased | 877K | Aug 14, 2026 |
| ATREIDES MANAGEMENT, LP | Increased | 862K | May 18, 2026 |
| STATE STREET CORP | Increased | 862K | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 769K | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 707K | May 15, 2026 |
| ALLIANCEBERNSTEIN L.P. | Increased | 686K | May 15, 2026 |
| SCHONFELD STRATEGIC ADVISORS LLC | Increased | 657K | May 15, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 652K | Aug 14, 2026 |
| ALLIANCEBERNSTEIN L.P. | Reduced | 610K | Aug 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.