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Hsing Michael

Disclosed activity across 1 company

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45632
SEC CIK
0001308676

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MONOLITHIC POWER SYSTEMS, INC.MPWR · Entity 877Director · CEOSeptember 28, 2026September 30, 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.

MONOLITHIC POWER SYSTEMS, INC.

Report date September 28, 2026 · Filed September 30, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect847,668 Reported balance After 2026-09-28 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-09-28 · Sale · Disposed 596 · Balance 847,668

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F3: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,320.64 to $1,325.61. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F2: Ending balance includes 1 share acquired on August 17, 2026, through the Company's qualified ESPP program.

Common StockSEC Table I · non-derivativeDirect845,547 Reported balance After 2026-09-28 transaction · row 2 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 2 · 2026-09-28 · Sale · Disposed 2,121 · Balance 845,547

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F4: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,325.65 to $1,330.62. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Common StockSEC Table I · non-derivativeDirect844,436 Reported balance After 2026-09-28 transaction · row 3 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 3 · 2026-09-28 · Sale · Disposed 1,111 · Balance 844,436

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F5: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,330.65 to $1,335.51. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Common StockSEC Table I · non-derivativeDirect841,487 Reported balance After 2026-09-28 transaction · row 4 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 4 · 2026-09-28 · Sale · Disposed 2,949 · Balance 841,487

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F6: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,335.68 to $1,340.66. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Common StockSEC Table I · non-derivativeDirect835,704 Reported balance After 2026-09-28 transaction · row 5 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 5 · 2026-09-28 · Sale · Disposed 5,783 · Balance 835,704

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F7: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,340.69 to $1,345.65. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Common StockSEC Table I · non-derivativeDirect829,361 Reported balance After 2026-09-28 transaction · row 6 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 6 · 2026-09-28 · Sale · Disposed 6,343 · Balance 829,361

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F8: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,345.66 to $1,350.47. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Common StockSEC Table I · non-derivativeDirect818,394 Reported balance After 2026-09-28 transaction · row 7 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 7 · 2026-09-28 · Sale · Disposed 10,967 · Balance 818,394

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F9: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,350.84 to $1,355.11. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Common StockSEC Table I · non-derivativeDirect818,264 Reported balance After 2026-09-28 transaction · row 8 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 8 · 2026-09-28 · Sale · Disposed 130 · Balance 818,264

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F10: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,356.78 to $1,357.00. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Common StockSEC Table I · non-derivativeIndirectby M Hsing 04 Trust133,040 Reported balance Holding disclosure · report date 2026-09-28 · row 9 Holding and transaction disclosures are not merged.
1 source row

Row 9 · Balance 133,040

Common StockSEC Table I · non-derivativeIndirectZH Family 2020 Trust12,825 Reported balance Holding disclosure · report date 2026-09-28 · row 10 Holding and transaction disclosures are not merged.
1 source row

Row 10 · Balance 12,825

Filing footnotes · ownership attribution and instrument terms

F1: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/29/2026.

F2: Ending balance includes 1 share acquired on August 17, 2026, through the Company's qualified ESPP program.

F3: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,320.64 to $1,325.61. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F4: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,325.65 to $1,330.62. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F5: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,330.65 to $1,335.51. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F6: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,335.68 to $1,340.66. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F7: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,340.69 to $1,345.65. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F8: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,345.66 to $1,350.47. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F9: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,350.84 to $1,355.11. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F10: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,356.78 to $1,357.00. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Transaction history

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Purchases/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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 22, 2019 Filed Oct 25, 2019 00:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionPerformance Shares · Derivative 42,783 $0.00 $0.00
Disclosure

SEC source: 0001437749-19-020589 · rdgdoc.xml · derivative · entry 4

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,939

Underlying: Common Stock · 42,783 shares

Expires not disclosed

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_price: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 22, 2019,the Compensation Committee determined one of the operational goals for the fourth tranche of performance units had been satisfied, which resulted in 42,783units being credited, subject to time based vesting.

F1 · kind: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 22, 2019,the Compensation Committee determined one of the operational goals for the fourth tranche of performance units had been satisfied, which resulted in 42,783units being credited, subject to time based vesting.

F1 · derivative.exercise_date: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 22, 2019,the Compensation Committee determined one of the operational goals for the fourth tranche of performance units had been satisfied, which resulted in 42,783units being credited, subject to time based vesting.

F1 · derivative.expiration_date: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 22, 2019,the Compensation Committee determined one of the operational goals for the fourth tranche of performance units had been satisfied, which resulted in 42,783units being credited, subject to time based vesting.

Read SEC document
October 22, 2019 Filed Oct 25, 2019 00:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 21,600 $0.00 $0.00
Disclosure

SEC source: 0001437749-19-020589 · rdgdoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,097,539

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 · date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company. All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change incontrol. Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited,subject to time based vesting.

F2 · kind: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company. All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change incontrol. Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited,subject to time based vesting.

F2 · shares: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company. All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change incontrol. Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited,subject to time based vesting.

Read SEC document
October 22, 2019 Filed Oct 25, 2019 00:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 42,783 $0.00 $0.00
Disclosure

SEC source: 0001437749-19-020589 · rdgdoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,075,939

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 · date: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 22, 2019,the Compensation Committee determined one of the operational goals for the fourth tranche of performance units had been satisfied, which resulted in 42,783units being credited, subject to time based vesting.

F1 · kind: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 22, 2019,the Compensation Committee determined one of the operational goals for the fourth tranche of performance units had been satisfied, which resulted in 42,783units being credited, subject to time based vesting.

F1 · shares: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 22, 2019,the Compensation Committee determined one of the operational goals for the fourth tranche of performance units had been satisfied, which resulted in 42,783units being credited, subject to time based vesting.

Read SEC document
October 03, 2019 Filed Oct 7, 2019 21:21 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 16,540 $149.99 $2,480,827.98
Disclosure

SEC source: 0001280452-19-000148 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,033,156

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $147.41 to $151.11. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
October 01, 2019 Filed Oct 2, 2019 21:48 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 10,960 $155.61 $1,705,473.54
Disclosure

SEC source: 0001280452-19-000142 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,049,696

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
August 09, 2019 Filed Aug 9, 2019 21:44 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 17,788 $149.30 $2,655,798.21
Disclosure

SEC source: 0001280452-19-000117 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,060,656

F2 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F3 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $148.00 to $150.98. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
August 08, 2019 Filed Aug 9, 2019 21:44 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 8,334 $150.42 $1,253,640.28
Disclosure

SEC source: 0001280452-19-000117 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,078,444

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
August 05, 2019 Filed Aug 6, 2019 20:48 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 10,097 $140.60 $1,419,635.17
Disclosure

SEC source: 0001280452-19-000108 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,086,778

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
July 23, 2019 Filed Jul 24, 2019 21:00 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionRestricted Stock Units · Derivative 21,600 $0.00 $0.00
Disclosure

SEC source: 0001280452-19-000100 · edgardoc.xml · derivative · entry 3

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,800

Underlying: Common Stock · 21,600 shares

Expires not disclosed

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_price: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On July 23, 2019, the second price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On July 23, 2019, the second price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · derivative.exercise_date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On July 23, 2019, the second price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · derivative.expiration_date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On July 23, 2019, the second price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

Read SEC document
July 23, 2019 Filed Jul 24, 2019 21:00 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 21,600 $0.00 $0.00
Disclosure

SEC source: 0001280452-19-000100 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,096,875

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 · date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On July 23, 2019, the second price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On July 23, 2019, the second price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · shares: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On July 23, 2019, the second price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

Read SEC document
July 03, 2019 Filed Jul 3, 2019 21:54 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 16,540 $134.96 $2,232,165.62
Disclosure

SEC source: 0001280452-19-000084 · edgardoc.xml · nonDerivative · entry 3

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,075,275

F3 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F4 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $134.34 to $136.67. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
July 01, 2019 Filed Jul 3, 2019 21:54 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 10,960 $139.56 $1,529,534.86
Disclosure

SEC source: 0001280452-19-000084 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,091,815

F2 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
May 09, 2019 Filed May 10, 2019 21:08 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 17,416 $135.68 $2,363,084.74
Disclosure

SEC source: 0001280452-19-000062 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,081,175

F2 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F3 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $132.65 to $137.31. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
May 08, 2019 Filed May 10, 2019 21:08 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 8,447 $138.03 $1,165,902.24
Disclosure

SEC source: 0001280452-19-000062 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,098,591

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
May 03, 2019 Filed May 7, 2019 21:47 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 10,354 $144.49 $1,496,012.19
Disclosure

SEC source: 0001280452-19-000055 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,107,038

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
April 23, 2019 Filed Jul 3, 2019 21:54 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionRestricted Stock Units · Derivative 21,600 $0.00 $0.00
Disclosure

SEC source: 0001280452-19-000084 · edgardoc.xml · derivative · entry 5

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,400

Underlying: Common Stock · 21,600 shares

Expires not disclosed

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_price: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On April 23, 2019, the first price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On April 23, 2019, the first price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · derivative.exercise_date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On April 23, 2019, the first price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · derivative.expiration_date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On April 23, 2019, the first price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

Read SEC document
April 23, 2019 Filed Jul 3, 2019 21:54 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 21,600 $0.00 $0.00
Disclosure

SEC source: 0001280452-19-000084 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,138,992

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 · date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On April 23, 2019, the first price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On April 23, 2019, the first price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

F1 · shares: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of five stock price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company.All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control.Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third have sales restrictions until January 1, 2026. On April 23, 2019, the first price target had been met and approved by the Compensation Committee, which resulted in 21,600 units being credited, subject to time based vesting above.

Read SEC document
April 04, 2019 Filed Apr 6, 2019 00:09 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,079 $145.07 $446,667.14
Disclosure

SEC source: 0001437749-19-006687 · rdgdoc.xml · nonDerivative · entry 3

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,117,392

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F4 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $144.88 to $145.59. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
April 04, 2019 Filed Apr 6, 2019 00:09 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 8,360 $144.35 $1,206,784.39
Disclosure

SEC source: 0001437749-19-006687 · rdgdoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,120,471

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F3 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $143.88 to $144.87. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
April 04, 2019 Filed Apr 6, 2019 00:09 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,101 $143.42 $731,563.49
Disclosure

SEC source: 0001437749-19-006687 · rdgdoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,128,831

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $142.88 to $143.83. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
April 01, 2019 Filed Apr 1, 2019 22:48 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 10,960 $138.60 $1,519,032.98
Disclosure

SEC source: 0001280452-19-000044 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,133,932

F3 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
March 28, 2019 Filed Apr 1, 2019 22:48 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,245 $135.51 $168,706.71
Disclosure

SEC source: 0001280452-19-000044 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,144,892

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $135.135 to $135.97. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 27, 2019 Filed Feb 27, 2019 23:27 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 35,683 $135.08 $4,819,881.23
Disclosure

SEC source: 0001280452-19-000037 · edgardoc.xml · nonDerivative · entry 3

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,146,137

F1 · kind: Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance Program.

F4 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $134.56 to $135.83. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 26, 2019 Filed Feb 27, 2019 23:27 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 20,558 $137.11 $2,818,606.65
Disclosure

SEC source: 0001280452-19-000037 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,181,820

F1 · kind: Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance Program.

F3 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $136.41 to $137.72. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 25, 2019 Filed Feb 27, 2019 23:27 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 19,000 $137.55 $2,613,516.50
Disclosure

SEC source: 0001280452-19-000037 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,202,378

F1 · kind: Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance Program.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $137.29 to $137.93. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 15, 2019 Filed Feb 19, 2019 22:11 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 OtherCommon Stock 178 $117.71 $20,952.02
Disclosure

SEC source: 0001437749-19-002885 · rdgdoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,221,378

F3 · kind: Acquired through the Company's qualified ESPP program.

Read SEC document
February 14, 2019 Filed Feb 19, 2019 22:11 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 20,047 $135.07 $2,707,836.50
Disclosure

SEC source: 0001437749-19-002885 · rdgdoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,221,200

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $133.10 to $136.14. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 12, 2019 Filed Feb 13, 2019 22:12 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 72,851 $130.66 $9,518,500.39
Disclosure

SEC source: 0001280452-19-000025 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,241,247

F2 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
February 11, 2019 Filed Feb 13, 2019 22:12 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantCommon Stock 254,220 $30.00 $7,626,600.00
Disclosure

SEC source: 0001280452-19-000025 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,314,098

F1 · shares: On February 7, 2017, the reporting person was granted a target of 97,777 shares of restricted stock units, with the right to earn up to 300% of the target shares, subject to satisfaction of pre-determined, performance-based vesting criteria. On February 11, 2019, the Company's Compensation Committee of the Board of Directors determined and approved the achievement of the performance criteria for the restricted stock units, which resulted in 156,443 additional shares being earned by the reporting person. Of the restricted stock units that were awarded, 127,111 will vest immediately and 127,109 will vest quarterly in the next two years.

Read SEC document
February 04, 2019 Filed Feb 5, 2019 22:56 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 14,516 $129.59 $1,881,112.47
Disclosure

SEC source: 0001280452-19-000008 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,059,878

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
December 03, 2018 Filed Dec 6, 2018 22:01 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 35,171 $134.77 $4,740,168.01
Disclosure

SEC source: 0001280452-18-000145 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,074,394

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $133.48 to $136.31. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
November 05, 2018 Filed Nov 6, 2018 22:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 15,867 $121.73 $1,931,508.95
Disclosure

SEC source: 0001280452-18-000138 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,109,565

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
October 25, 2018 Filed Oct 29, 2018 23:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantRestricted Stock Units · Derivative 108,000 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000131 · edgardoc.xml · derivative · entry 6

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,000

Underlying: Common Stock · 108,000 shares

Expires not disclosed

F3 · security: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of share price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company. All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control. Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third of the shares have sales restrictions until January 1, 2026.

F3 · derivative.exercise_price: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of share price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company. All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control. Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third of the shares have sales restrictions until January 1, 2026.

F3 · kind: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of share price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company. All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control. Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third of the shares have sales restrictions until January 1, 2026.

F3 · derivative.exercise_date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of share price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company. All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control. Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third of the shares have sales restrictions until January 1, 2026.

F3 · derivative.expiration_date: On October 25, 2018, the reporting person was granted a target number of 21,600 performance units and can earn up to a maximum of 108,000 performance units subject to satisfaction of share price targets ranging from $140 to $172 over the performance periods from October 25, 2018 to December 31, 2023, as determined by the Compensation Committee of the Company. All performance units are subject to time based vesting and require service through January 1, 2024 or an earlier change in control. Once vested, performance units convert into shares of common stock on a 1-for-1 basis and one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2024, one-third of the shares have sales restrictions until January 1, 2025 and one-third of the shares have sales restrictions until January 1, 2026.

Read SEC document
October 25, 2018 Filed Oct 29, 2018 23:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionPerformance Shares · Derivative 27,640 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000131 · edgardoc.xml · derivative · entry 5

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,722

Underlying: Common Stock · 27,640 shares

Expires not disclosed

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_price: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years.The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee.All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 27,640 units being credited, subject to time based vesting.

F2 · kind: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years.The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee.All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 27,640 units being credited, subject to time based vesting.

F2 · derivative.exercise_date: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years.The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee.All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 27,640 units being credited, subject to time based vesting.

F2 · derivative.expiration_date: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years.The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee.All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 27,640 units being credited, subject to time based vesting.

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October 25, 2018 Filed Oct 29, 2018 23:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionPerformance Shares · Derivative 23,625 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000131 · edgardoc.xml · derivative · entry 4

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,362

Underlying: Common Stock · 23,625 shares

Expires not disclosed

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_price: On December 31, 2015, the reporting person was granted a target number of 138,743 performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals, as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018, the Compensation Committee determined one of the operational goals for the second tranche of performance units had been satisfied, which resulted in 23,625 units being credited, subject to time based vesting above.

F1 · kind: On December 31, 2015, the reporting person was granted a target number of 138,743 performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals, as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018, the Compensation Committee determined one of the operational goals for the second tranche of performance units had been satisfied, which resulted in 23,625 units being credited, subject to time based vesting above.

F1 · derivative.exercise_date: On December 31, 2015, the reporting person was granted a target number of 138,743 performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals, as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018, the Compensation Committee determined one of the operational goals for the second tranche of performance units had been satisfied, which resulted in 23,625 units being credited, subject to time based vesting above.

F1 · derivative.expiration_date: On December 31, 2015, the reporting person was granted a target number of 138,743 performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals, as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018, the Compensation Committee determined one of the operational goals for the second tranche of performance units had been satisfied, which resulted in 23,625 units being credited, subject to time based vesting above.

Read SEC document
October 25, 2018 Filed Oct 29, 2018 23:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 27,640 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000131 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,125,432

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 · date: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years.The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee.All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 27,640 units being credited, subject to time based vesting.

F2 · kind: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years.The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee.All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 27,640 units being credited, subject to time based vesting.

F2 · shares: On December 31, 2015, the reporting person was granted a target number of 138,743 shares of performance units in four tranches subject to satisfaction of share price targets over the next four years.The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals,as determined by the Compensation Committee.All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 27,640 units being credited, subject to time based vesting.

Read SEC document
October 25, 2018 Filed Oct 29, 2018 23:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 23,625 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000131 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,097,792

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 · date: On December 31, 2015, the reporting person was granted a target number of 138,743 performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals, as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018, the Compensation Committee determined one of the operational goals for the second tranche of performance units had been satisfied, which resulted in 23,625 units being credited, subject to time based vesting above.

F1 · kind: On December 31, 2015, the reporting person was granted a target number of 138,743 performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals, as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018, the Compensation Committee determined one of the operational goals for the second tranche of performance units had been satisfied, which resulted in 23,625 units being credited, subject to time based vesting above.

F1 · shares: On December 31, 2015, the reporting person was granted a target number of 138,743 performance units in four tranches subject to satisfaction of share price targets over the next four years. The vesting of performance units in the second, third and fourth tranches is also subject to the satisfaction of certain operational goals, as determined by the Compensation Committee. All performance units are subject to time based vesting and require service through January 1, 2020 or an earlier change in control. Once vested, one-third of the resulting shares have no sales restrictions and are sellable on January 1, 2020, one-third of the shares have sales restrictions until January 1, 2021 and one-third of the shares have sales restrictions until January 1, 2022. On October 25, 2018, the Compensation Committee determined one of the operational goals for the second tranche of performance units had been satisfied, which resulted in 23,625 units being credited, subject to time based vesting above.

Read SEC document
October 01, 2018 Filed Oct 2, 2018 21:18 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 15,870 $126.18 $2,002,492.47
Disclosure

SEC source: 0001280452-18-000120 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,074,167

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $125.57 to $126.89. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
September 04, 2018 Filed Sep 5, 2018 21:21 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 25,332 $150.36 $3,808,942.32
Disclosure

SEC source: 0001280452-18-000115 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,090,037

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $148.35 to $151.73. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
August 14, 2018 Filed Aug 16, 2018 20:44 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 17,634 $141.05 $2,487,212.22
Disclosure

SEC source: 0001280452-18-000105 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,115,369

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $139.56 to $141.45. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
August 06, 2018 Filed Aug 7, 2018 21:25 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,629 $135.99 $765,505.72
Disclosure

SEC source: 0001280452-18-000098 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,133,003

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
August 03, 2018 Filed Aug 7, 2018 21:25 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 9,943 $135.45 $1,346,824.09
Disclosure

SEC source: 0001280452-18-000098 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,138,632

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
July 02, 2018 Filed Jul 3, 2018 19:13 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 20,000 $132.97 $2,659,494.00
Disclosure

SEC source: 0001280452-18-000092 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,148,575

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $131.94 to $133.95. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
June 01, 2018 Filed Jun 4, 2018 21:24 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 20,000 $133.05 $2,660,936.00
Disclosure

SEC source: 0001280452-18-000090 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,168,575

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $132.26 to $133.88. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
May 14, 2018 Filed May 15, 2018 21:14 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 17,633 $126.75 $2,235,051.52
Disclosure

SEC source: 0001280452-18-000077 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,188,575

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $126.03 to $128.81. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
May 04, 2018 Filed May 7, 2018 21:19 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 6,916 $122.66 $848,333.85
Disclosure

SEC source: 0001280452-18-000072 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,206,208

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
May 03, 2018 Filed May 7, 2018 21:19 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 11,665 $118.43 $1,381,502.28
Disclosure

SEC source: 0001280452-18-000072 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,213,124

F1 · kind: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans.

Read SEC document
April 02, 2018 Filed Apr 3, 2018 21:33 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 20,000 $111.90 $2,237,994.00
Disclosure

SEC source: 0001280452-18-000060 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,224,789

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $110.47 to $114.99. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 21, 2018 Filed Feb 22, 2018 21:54 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 34,313 $118.34 $4,060,713.65
Disclosure

SEC source: 0001280452-18-000050 · edgardoc.xml · nonDerivative · entry 2

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,244,789

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F3 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $117.10 to $120.47. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 20, 2018 Filed Feb 22, 2018 21:54 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 18,716 $118.73 $2,222,077.69
Disclosure

SEC source: 0001280452-18-000050 · edgardoc.xml · nonDerivative · entry 1

Hsing Michael · CIK 0001308676 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,279,102

F1 · kind: In accordance with the reporting person's 10b5-1 trading plan.

F2 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $116.00 to $120.20. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

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.