Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Ambiq Micro, Inc.AMBQ · Entity 751 | Director · Chief Executive Officer | October 02, 2026 | October 06, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Ambiq Micro, Inc.
Report date October 02, 2026 · Filed October 06, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 443,900 |
Ending reported balance
After 2026-10-02 transaction · row 3
3 source rows · reconciled sequenceRow 1 · 2026-10-02 · Sale · Disposed 7,113 · Balance 453,347 F1: This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain restricted stock units. F2: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $68.41 to $69.40 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Row 2 · 2026-10-02 · Sale · Disposed 8,585 · Balance 444,762 F1: This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain restricted stock units. F3: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $69.41 to $70.16 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Row 3 · 2026-10-02 · Sale · Disposed 862 · Balance 443,900 F1: This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain restricted stock units. F4: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $71.50 to $72.26 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
Filing footnotes · ownership attribution and instrument terms
F1: This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain restricted stock units.
F2: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $68.41 to $69.40 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $69.41 to $70.16 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F4: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $71.50 to $72.26 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| October 02, 2026 Filed Oct 6, 2026 22:53 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 862 | $71.86 | $61,942.63 |
DisclosureSEC source: 0002078454-26-000018 · form4-10062026_101028.xml · nonDerivative · entry 3 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 443,900 F1 · kind: This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain restricted stock units. F4 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $71.50 to $72.26 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| October 02, 2026 Filed Oct 6, 2026 22:53 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 8,585 | $69.77 | $598,994.34 |
DisclosureSEC source: 0002078454-26-000018 · form4-10062026_101028.xml · nonDerivative · entry 2 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 444,762 F1 · kind: This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain restricted stock units. F3 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $69.41 to $70.16 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| October 02, 2026 Filed Oct 6, 2026 22:53 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 7,113 | $69.11 | $491,567.34 |
DisclosureSEC source: 0002078454-26-000018 · form4-10062026_101028.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 453,347 F1 · kind: This sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain restricted stock units. F2 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $68.41 to $69.40 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 15, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 13,500 | $0.00 Strike: $8.12 | $0.00 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · derivative · entry 10 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 58,507 Underlying: Common Stock · 13,500 shares Expires 2029-02-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F8 · derivative.exercise_date: 1/4 of the shares subject to the option vested on February 21, 2020, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| September 15, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 100 | $61.00 | $6,100.00 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · nonDerivative · entry 7 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 460,460 F3 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. Read SEC document |
| September 15, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 9,615 | $60.55 | $582,170.94 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · nonDerivative · entry 6 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 460,560 F3 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F5 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $59.96 to $60.80 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 15, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 3,785 | $59.56 | $225,444.44 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · nonDerivative · entry 5 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 470,175 F3 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F4 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $58.95 to $59.94 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 15, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 13,500 | $8.12 | $109,620.00 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · nonDerivative · entry 4 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 473,960 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. Read SEC document |
| September 11, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 30,993 | $0.00 Strike: $12.60 | $0.00 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · derivative · entry 9 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 144,279 Underlying: Common Stock · 30,993 shares Expires 2034-07-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F7 · derivative.exercise_date: 1/4 of the shares subject to the option vested on January 1, 2024, and 1/48 of the shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| September 11, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 19,007 | $0.00 Strike: $12.60 | $0.00 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · derivative · entry 8 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 19,007 shares Expires 2031-05-25 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F6 · derivative.exercise_date: 1/48 of the shares subject to the option vested on June 26, 2021, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| September 11, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 7,917 | $63.86 | $505,566.16 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · nonDerivative · entry 3 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 460,460 F2 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $63.72 to $64.05 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 11, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 42,083 | $63.27 | $2,662,427.29 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · nonDerivative · entry 2 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 468,377 F1 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $62.70 to $63.70 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 11, 2026 Filed Sep 15, 2026 22:56 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 50,000 | $12.60 | $630,000.00 |
DisclosureSEC source: 0002078454-26-000014 · form4-09152026_100913.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 510,460 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 02, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 11,027 | $0.00 Strike: $12.60 | $0.00 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · derivative · entry 18 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 19,007 Underlying: Common Stock · 11,027 shares Expires 2031-05-25 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F12 · derivative.exercise_date: 1/48 of the shares subject to the option vested on June 26, 2021, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| September 02, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 9,575 | $56.77 | $543,573.71 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 13 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 460,460 F10 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $56.46 to $57.06 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 02, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 1,452 | $56.15 | $81,534.01 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 12 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 470,035 F9 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $55.45 to $56.44 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 02, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 11,027 | $12.60 | $138,940.20 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 11 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 471,487 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 01, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 48,973 | $0.00 Strike: $12.60 | $0.00 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · derivative · entry 17 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 30,034 Underlying: Common Stock · 48,973 shares Expires 2031-05-25 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F12 · derivative.exercise_date: 1/48 of the shares subject to the option vested on June 26, 2021, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| September 01, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 48,973 | $56.39 | $2,761,533.60 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 10 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 460,460 F8 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $56.00 to $56.83 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 01, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 48,973 | $12.60 | $617,059.80 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 9 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 509,433 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 9,271 | $0.00 Strike: $12.60 | $0.00 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · derivative · entry 16 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 175,272 Underlying: Common Stock · 9,271 shares Expires 2034-07-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F13 · derivative.exercise_date: 1/4 of the shares subject to the option vested on January 1, 2024, and 1/48 of the shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 35,000 | $0.00 Strike: $12.60 | $0.00 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · derivative · entry 15 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 79,007 Underlying: Common Stock · 35,000 shares Expires 2031-05-25 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F12 · derivative.exercise_date: 1/48 of the shares subject to the option vested on June 26, 2021, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 13,500 | $0.00 Strike: $8.12 | $0.00 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · derivative · entry 14 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 72,007 Underlying: Common Stock · 13,500 shares Expires 2029-02-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F11 · derivative.exercise_date: 1/4 of the shares subject to the option vested on February 21, 2020, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 5,600 | $58.46 | $327,358.64 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 8 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 460,460 F7 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $58.29 to $58.49 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 13,800 | $57.70 | $796,276.56 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 7 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 466,060 F6 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $57.29 to $58.28 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 15,600 | $56.81 | $886,218.84 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 6 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 479,860 F5 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $56.29 to $57.28 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 44,271 | $12.60 | $557,814.60 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 5 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 495,460 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 2,100 | $58.52 | $122,889.06 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 4 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 451,189 F1 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F4 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $58.42 to $58.74 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 5,501 | $57.75 | $317,708.60 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 3 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 453,289 F1 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F3 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $57.37 to $58.24 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 5,899 | $56.87 | $335,452.53 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 2 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 458,790 F1 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F2 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $56.35 to $57.34 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:47 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 13,500 | $8.12 | $109,620.00 |
DisclosureSEC source: 0002078454-26-000012 · form4-09022026_080947.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 464,689 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. Read SEC document |
| August 14, 2026 Filed Aug 18, 2026 20:30 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 13,500 | $0.00 Strike: $8.12 | $0.00 |
DisclosureSEC source: 0002078454-26-000010 · form4-08182026_080809.xml · derivative · entry 5 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 85,507 Underlying: Common Stock · 13,500 shares Expires 2029-02-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F5 · derivative.exercise_date: 1/4 of the shares subject to the option vested on February 21, 2020, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| August 14, 2026 Filed Aug 18, 2026 20:30 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 1,500 | $65.26 | $97,893.15 |
DisclosureSEC source: 0002078454-26-000010 · form4-08182026_080809.xml · nonDerivative · entry 4 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 451,189 F1 · kind: The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F4 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $64.92 to $65.56 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 14, 2026 Filed Aug 18, 2026 20:30 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 10,718 | $64.40 | $690,200.62 |
DisclosureSEC source: 0002078454-26-000010 · form4-08182026_080809.xml · nonDerivative · entry 3 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 452,689 F1 · kind: The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F3 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $63.71 to $64.70 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 14, 2026 Filed Aug 18, 2026 20:30 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 1,282 | $63.29 | $81,132.27 |
DisclosureSEC source: 0002078454-26-000010 · form4-08182026_080809.xml · nonDerivative · entry 2 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 463,407 F1 · kind: The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. F2 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $62.66 to $63.64 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 14, 2026 Filed Aug 18, 2026 20:30 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 13,500 | $8.12 | $109,620.00 |
DisclosureSEC source: 0002078454-26-000010 · form4-08182026_080809.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 464,689 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026. Read SEC document |
| May 15, 2026 Filed May 18, 2026 21:44 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 6,601 | $0.00 Strike: $12.60 | $0.00 |
DisclosureSEC source: 0002078454-26-000008 · form4-05182026_090519.xml · derivative · entry 8 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 184,543 Underlying: Common Stock · 6,601 shares Expires 2034-07-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_date: 1/4 of the shares subject to the option vested on January 1, 2024, and 1/48 of the shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| May 15, 2026 Filed May 18, 2026 21:44 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 7,936 | $0.00 Strike: $12.60 | $0.00 |
DisclosureSEC source: 0002078454-26-000008 · form4-05182026_090519.xml · derivative · entry 7 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 114,007 Underlying: Common Stock · 7,936 shares Expires 2031-05-25 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: 1/48 of the shares subject to the option vested on June 26, 2021, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| May 15, 2026 Filed May 18, 2026 21:44 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 45,463 | $0.00 Strike: $8.12 | $0.00 |
DisclosureSEC source: 0002078454-26-000008 · form4-05182026_090519.xml · derivative · entry 6 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 99,007 Underlying: Common Stock · 45,463 shares Expires 2029-02-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: 1/4 of the shares subject to the option vested on February 21, 2020, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| May 15, 2026 Filed May 18, 2026 21:44 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 14,537 | $12.60 | $183,166.20 |
DisclosureSEC source: 0002078454-26-000008 · form4-05182026_090519.xml · nonDerivative · entry 4 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 451,189 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| May 15, 2026 Filed May 18, 2026 21:44 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 45,463 | $8.12 | $369,159.56 |
DisclosureSEC source: 0002078454-26-000008 · form4-05182026_090519.xml · nonDerivative · entry 3 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 436,652 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| May 14, 2026 Filed May 18, 2026 21:44 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 60,000 | $0.00 Strike: $8.12 | $0.00 |
DisclosureSEC source: 0002078454-26-000008 · form4-05182026_090519.xml · derivative · entry 5 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 144,470 Underlying: Common Stock · 60,000 shares Expires 2029-02-20 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: 1/4 of the shares subject to the option vested on February 21, 2020, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. Read SEC document |
| May 14, 2026 Filed May 18, 2026 21:44 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | SaleCommon Stock | 60,000 | $70.02 | $4,201,122.00 |
DisclosureSEC source: 0002078454-26-000008 · form4-05182026_090519.xml · nonDerivative · entry 2 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 391,189 F1 · price: The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $70.00 to $70.45 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| May 14, 2026 Filed May 18, 2026 21:44 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 60,000 | $8.12 | $487,200.00 |
DisclosureSEC source: 0002078454-26-000008 · form4-05182026_090519.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 451,189 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 06, 2026 Filed Mar 10, 2026 20:49 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | GrantCommon Stock | 160,616 | $0.00 | $0.00 |
DisclosureSEC source: 0002078454-26-000004 · form4-03102026_080312.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 391,189 F1 · shares: Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on September 1, 2027, and 1/12 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan). Read SEC document |
| March 06, 2026 Filed Apr 2, 2026 20:34 UTC Amendment | Ambiq Micro, Inc. AMBQ · Entity 751 | GrantCommon Stock | 160,616 | $0.00 | $0.00 |
DisclosureSEC source: 0002078454-26-000005 · form4a-04022026_080417.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 391,189 F1 · shares: Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on October 1, 2027, and 1/12 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan). Read SEC document |
| October 07, 2025 Filed Feb 11, 2026 01:08 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionStock Option (Right to Buy) · Derivative | 53,660 | $0.00 Strike: $5.88 | $0.00 |
DisclosureSEC source: 0002078454-26-000002 · form4-02112026_010246.xml · derivative · entry 2 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 53,660 shares Expires 2026-01-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_date: 1/4 of the shares subject to the option vested on December 1, 2016, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service. The shares subject to this option are early exercisable, subject to the Issuer's right to repurchase. Read SEC document |
| October 07, 2025 Filed Feb 11, 2026 01:08 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | Exercise / conversionCommon Stock | 53,660 | $5.88 | $315,520.80 |
DisclosureSEC source: 0002078454-26-000002 · form4-02112026_010246.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 230,573 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| October 02, 2025 Filed Oct 6, 2025 21:55 UTC | Ambiq Micro, Inc. AMBQ · Entity 751 | GrantCommon Stock | 159,907 | $0.00 | $0.00 |
DisclosureSEC source: 0002078454-25-000003 · form4-10062025_091026.xml · nonDerivative · entry 1 Esaka Fumihide · CIK 0002078454 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 176,913 F1 · shares: Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on October 1, 2026, and 1/12 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan). Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.