TapewireFind a company

person · Reporting owner

Xiao Deming

Disclosed activity across 1 company

Tapewire entity
48680
SEC CIK
0001308647

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MONOLITHIC POWER SYSTEMS, INC.MPWR · Entity 877EVP, Global OperationsMay 06, 2026May 08, 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 May 06, 2026 · Filed May 08, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect232,630 Reported balance After 2026-05-06 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-05-06 · Sale · Disposed 3,329 · Balance 232,630

F2: 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 $1,645.48 to $1,650.43. 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.

F1: Ending balance includes 27 shares acquired on February 17, 2026 through the Company's qualified ESPP program.

Common StockSEC Table I · non-derivativeDirect218,463 Reported balance After 2026-05-06 transaction · row 2 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 2 · 2026-05-06 · Sale · Disposed 14,167 · Balance 218,463

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 $1,650.75 to $1,655.75. 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-derivativeDirect206,866 Reported balance After 2026-05-06 transaction · row 3 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 3 · 2026-05-06 · Sale · Disposed 11,597 · Balance 206,866

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 $1,655.80 to $1,660.72. 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.

Common StockSEC Table I · non-derivativeDirect205,959 Reported balance After 2026-05-06 transaction · row 4 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 4 · 2026-05-06 · Sale · Disposed 907 · Balance 205,959

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 $1,660.99 to $1,662 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 Spouse20,455 Reported balance Holding disclosure · report date 2026-05-06 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 20,455

Common StockSEC Table I · non-derivativeIndirectChristopher Chao Xiao Trust4,336 Reported balance Holding disclosure · report date 2026-05-06 · row 6 Holding and transaction disclosures are not merged.
1 source row

Row 6 · Balance 4,336

Filing footnotes · ownership attribution and instrument terms

F1: Ending balance includes 27 shares acquired on February 17, 2026 through the Company's qualified ESPP program.

F2: 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 $1,645.48 to $1,650.43. 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.

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 $1,650.75 to $1,655.75. 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 $1,655.80 to $1,660.72. 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.

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 $1,660.99 to $1,662 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

JSON API
Reset

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
April 22, 2021 Filed Apr 26, 2021 21:18 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantCommon Stock 2,895 $30.00 $86,850.00
Disclosure

SEC source: 0001280452-21-000059 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 327,437

F1 · shares: On February 2, 2021, the reporting person was granted a target number of 2,895 performance units that can be earned subject to the achievement of a performance goal related to certain environmental objectives, with a performance period through December 31, 2023. The performance units vest upon achievement of the goal, but no earlier than December 31, 2022. Once vested, the performance units have a post-vesting sales restriction period of one year. On April 22, 2021, the Compensation Committee of the Board of Directors determined that the environmental goal had been satisfied, which resulted in 2,895 units being credited with the vesting terms described above.

Read SEC document
April 01, 2021 Filed Apr 2, 2021 19:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,305 $364.78 $1,570,363.26
Disclosure

SEC source: 0001280452-21-000047 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 324,542

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
February 26, 2021 Filed Feb 26, 2021 22:55 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,000 $374.00 $1,122,000.00
Disclosure

SEC source: 0001280452-21-000040 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 328,847

Read SEC document
February 24, 2021 Filed Feb 25, 2021 21:10 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,000 $383.47 $383,470.00
Disclosure

SEC source: 0001280452-21-000038 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 331,847

Read SEC document
February 16, 2021 Filed Feb 17, 2021 22:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,000 $398.00 $1,990,000.00
Disclosure

SEC source: 0001280452-21-000033 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,847

Read SEC document
February 09, 2021 Filed Feb 10, 2021 00:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,092 $372.89 $1,525,874.06
Disclosure

SEC source: 0001280452-21-000027 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337,847

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
February 05, 2021 Filed Feb 10, 2021 00:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 13,359 $366.34 $4,893,914.69
Disclosure

SEC source: 0001280452-21-000027 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 341,939

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
February 02, 2021 Filed Feb 5, 2021 00:53 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionPerformance Shares · Derivative 32,165 $0.00 $0.00
Disclosure

SEC source: 0001280452-21-000021 · edgardoc.xml · derivative · entry 4

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 0 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 July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units have a post-vesting sales restriction period of one year. On February 2, 2021, the Compensation Committee determined that the five price targets and the operating goal had been satisfied, which resulted in 32,165 units being credited, subject to time based vesting above.

F1 · kind: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units have a post-vesting sales restriction period of one year. On February 2, 2021, the Compensation Committee determined that the five price targets and the operating goal had been satisfied, which resulted in 32,165 units being credited, subject to time based vesting above.

F1 · derivative.exercise_date: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units have a post-vesting sales restriction period of one year. On February 2, 2021, the Compensation Committee determined that the five price targets and the operating goal had been satisfied, which resulted in 32,165 units being credited, subject to time based vesting above.

F1 · derivative.expiration_date: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units have a post-vesting sales restriction period of one year. On February 2, 2021, the Compensation Committee determined that the five price targets and the operating goal had been satisfied, which resulted in 32,165 units being credited, subject to time based vesting above.

Read SEC document
February 02, 2021 Filed Feb 5, 2021 00:53 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantCommon Stock 60,186 $30.00 $1,805,580.00
Disclosure

SEC source: 0001280452-21-000021 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 355,298

F2 · shares: On February 11, 2019, the reporting person was granted a target of 20,062 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 2, 2021, 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 40,124 additional shares being earned by the reporting person. Of the restricted stock units that were awarded, 30,093 will vest immediately and 30,093 will vest quarterly in the next two years.

Read SEC document
February 02, 2021 Filed Feb 5, 2021 00:53 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 32,165 $0.00 $0.00
Disclosure

SEC source: 0001280452-21-000021 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 295,112

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 July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units have a post-vesting sales restriction period of one year. On February 2, 2021, the Compensation Committee determined that the five price targets and the operating goal had been satisfied, which resulted in 32,165 units being credited, subject to time based vesting above.

F1 · kind: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units have a post-vesting sales restriction period of one year. On February 2, 2021, the Compensation Committee determined that the five price targets and the operating goal had been satisfied, which resulted in 32,165 units being credited, subject to time based vesting above.

F1 · shares: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units have a post-vesting sales restriction period of one year. On February 2, 2021, the Compensation Committee determined that the five price targets and the operating goal had been satisfied, which resulted in 32,165 units being credited, subject to time based vesting above.

Read SEC document
January 04, 2021 Filed Jan 5, 2021 22:48 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,305 $368.26 $1,585,364.04
Disclosure

SEC source: 0001280452-21-000002 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,947

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
November 09, 2020 Filed Nov 10, 2020 21:38 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,441 $333.52 $1,481,177.42
Disclosure

SEC source: 0001280452-20-000176 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 267,252

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
November 06, 2020 Filed Nov 10, 2020 21:38 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,897 $356.00 $1,387,332.00
Disclosure

SEC source: 0001280452-20-000176 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 271,693

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

Read SEC document
October 01, 2020 Filed Oct 2, 2020 20:41 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,305 $280.50 $1,207,568.00
Disclosure

SEC source: 0001280452-20-000165 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 275,590

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 17, 2020 Filed Aug 18, 2020 00:04 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 OtherCommon Stock 60 $157.53 $9,451.83
Disclosure

SEC source: 0001280452-20-000143 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 279,895

F2 · kind: Acquired through the Company's qualified ESPP program.

Read SEC document
August 13, 2020 Filed Aug 18, 2020 00:04 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,917 $281.00 $1,381,677.00
Disclosure

SEC source: 0001280452-20-000143 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 279,835

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

Read SEC document
August 10, 2020 Filed Aug 12, 2020 21:10 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,410 $274.40 $1,210,111.50
Disclosure

SEC source: 0001280452-20-000139 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 284,752

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 21, 2020 Filed Jul 23, 2020 21:20 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantPerformance Shares · Derivative 32,165 $0.00 $0.00
Disclosure

SEC source: 0001280452-20-000117 · edgardoc.xml · derivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,165

Underlying: Common Stock · 32,165 shares

Expires not disclosed

F1 · security: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

F1 · derivative.exercise_price: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

F1 · kind: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

F1 · derivative.exercise_date: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

F1 · derivative.expiration_date: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

Read SEC document
July 21, 2020 Filed Jul 23, 2020 21:18 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantPerformance Shares · Derivative 32,165 $0.00 $0.00
Disclosure

SEC source: 0001280452-20-000116 · edgardoc.xml · derivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,165

Underlying: Common Stock · 32,165 shares

Expires not disclosed

F1 · security: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

F1 · derivative.exercise_price: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

F1 · kind: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

F1 · derivative.exercise_date: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

F1 · derivative.expiration_date: On July 21, 2020, the reporting person was granted a target number of 6,433 performance units and can earn up to a maximum of 32,165 performance units subject to satisfaction of share price targets ranging from $260 to $300 over a performance period from July 21, 2020 to July 20, 2023. In addition, all performance units are subject to the achievement of a business operating goal with a performance period through December 31, 2021, as determined by the Compensation Committee of the Company. 75% of the performance units are subject to time-based vesting and require service through July 20, 2023, and the remaining 25% of the performance units are subject to time-based vesting and require service through July 20, 2024. Once vested, the performance units convert into shares of common stock on a 1-for-1 basis and the resulting shares, net of tax withholdings, have a post-vesting sales restriction period of one year.

Read SEC document
July 01, 2020 Filed Jul 6, 2020 21:05 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,305 $235.16 $1,012,363.80
Disclosure

SEC source: 0001437749-20-014677 · rdgdoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 289,162

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 08, 2020 Filed May 12, 2020 21:49 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,565 $208.67 $952,568.05
Disclosure

SEC source: 0001280452-20-000092 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 293,467

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 17, 2020 Filed Apr 20, 2020 20:49 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 49,065 $185.01 $9,077,574.53
Disclosure

SEC source: 0001280452-20-000072 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 298,032

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 $185.00 to $185.49. 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 17, 2020 Filed Apr 20, 2020 20:49 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 96 $185.00 $17,760.00
Disclosure

SEC source: 0001280452-20-000072 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 347,097

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

Read SEC document
April 01, 2020 Filed Apr 3, 2020 21:06 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,380 $162.58 $712,078.50
Disclosure

SEC source: 0001280452-20-000066 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 347,193

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 18, 2020 Filed Apr 3, 2020 21:06 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 OtherCommon Stock 96 $123.37 $11,843.42
Disclosure

SEC source: 0001280452-20-000066 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 351,573

F1 · kind: Acquired through the Company's qualified ESPP program.

Read SEC document
February 10, 2020 Filed Feb 12, 2020 22:58 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,327 $181.07 $421,359.90
Disclosure

SEC source: 0001280452-20-000040 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 351,477

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
February 06, 2020 Filed Feb 6, 2020 23:28 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 18,355 $183.75 $3,372,773.47
Disclosure

SEC source: 0001280452-20-000025 · edgardoc.xml · nonDerivative · entry 3

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 353,804

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
February 04, 2020 Filed Feb 6, 2020 23:28 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionRestricted Stock Units · Derivative 19,200 $0.00 $0.00
Disclosure

SEC source: 0001280452-20-000025 · edgardoc.xml · derivative · entry 5

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 19,200 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 9,600 performance units and can earn up to a maximum of 48,000 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 Board's Compensation Committee. 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 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 February 4, 2020, the fourth and fifth price targets had been met and approved by the Compensation Committee, which resulted in 19,200 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 Board's Compensation Committee. 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 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 February 4, 2020, the fourth and fifth price targets had been met and approved by the Compensation Committee, which resulted in 19,200 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 9,600 performance units and can earn up to a maximum of 48,000 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 Board's Compensation Committee. 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 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 February 4, 2020, the fourth and fifth price targets had been met and approved by the Compensation Committee, which resulted in 19,200 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 9,600 performance units and can earn up to a maximum of 48,000 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 Board's Compensation Committee. 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 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 February 4, 2020, the fourth and fifth price targets had been met and approved by the Compensation Committee, which resulted in 19,200 units being credited, subject to time based vesting above.

Read SEC document
February 04, 2020 Filed Feb 6, 2020 23:28 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantCommon Stock 74,894 $30.00 $2,246,820.00
Disclosure

SEC source: 0001280452-20-000025 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 372,159

F2 · shares: On February 7, 2018, the reporting person was granted a target of 25,245 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 4, 2020, 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 49,649 additional shares being earned by the reporting person. Of the restricted stock units that were awarded, 37,448 will vest immediately and 37,446 will vest quarterly in the next two years.

Read SEC document
February 04, 2020 Filed Feb 6, 2020 23:28 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 19,200 $0.00 $0.00
Disclosure

SEC source: 0001280452-20-000025 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297,265

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 9,600 performance units and can earn up to a maximum of 48,000 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 Board's Compensation Committee. 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 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 February 4, 2020, the fourth and fifth price targets had been met and approved by the Compensation Committee, which resulted in 19,200 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 Board's Compensation Committee. 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 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 February 4, 2020, the fourth and fifth price targets had been met and approved by the Compensation Committee, which resulted in 19,200 units being credited, subject to time based vesting above.

F1 · shares: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 Board's Compensation Committee. 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 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 February 4, 2020, the fourth and fifth price targets had been met and approved by the Compensation Committee, which resulted in 19,200 units being credited, subject to time based vesting above.

Read SEC document
February 03, 2020 Filed Feb 4, 2020 00:03 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,904 $173.89 $504,987.01
Disclosure

SEC source: 0001280452-20-000018 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278,065

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
January 07, 2020 Filed Jan 9, 2020 22:04 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 33,850 $176.99 $5,991,121.66
Disclosure

SEC source: 0001280452-20-000008 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280,969

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 26, 2019 Filed Dec 30, 2019 21:01 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 12,802 $178.56 $2,285,886.71
Disclosure

SEC source: 0001437749-19-024995 · rdgdoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 314,819

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 $177.93 to $179.05. 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 08, 2019 Filed Nov 12, 2019 22:27 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,374 $163.36 $387,820.44
Disclosure

SEC source: 0001280452-19-000176 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 327,621

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
November 04, 2019 Filed Nov 5, 2019 22:38 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,948 $159.63 $470,595.73
Disclosure

SEC source: 0001280452-19-000164 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,995

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 22, 2019 Filed Oct 25, 2019 00:15 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionRestricted Stock Units · Derivative 9,600 $0.00 $0.00
Disclosure

SEC source: 0001437749-19-020588 · rdgdoc.xml · derivative · entry 5

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,200

Underlying: Common Stock · 9,600 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.

F2 · derivative.exercise_price: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 9,600 units being credited, subject to time based vesting above.

F2 · kind: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 9,600 units being credited, subject to time based vesting above.

F2 · derivative.exercise_date: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 9,600 units being credited, subject to time based vesting above.

F2 · derivative.expiration_date: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 9,600 units being credited, subject to time based vesting above.

Read SEC document
October 22, 2019 Filed Oct 25, 2019 00:15 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionPerformance Shares · Derivative 23,338 $0.00 $0.00
Disclosure

SEC source: 0001437749-19-020588 · rdgdoc.xml · derivative · entry 4

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,876

Underlying: Common Stock · 23,338 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 75,678 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 23,338 units being credited, subject to time based vesting.

F1 · kind: On December 31, 2015, the reporting person was granted a target number of 75,678 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 23,338 units being credited, subject to time based vesting.

F1 · derivative.exercise_date: On December 31, 2015, the reporting person was granted a target number of 75,678 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 23,338 units being credited, subject to time based vesting.

F1 · derivative.expiration_date: On December 31, 2015, the reporting person was granted a target number of 75,678 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 23,338 units being credited, subject to time based vesting.

Read SEC document
October 22, 2019 Filed Oct 25, 2019 00:15 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 9,600 $0.00 $0.00
Disclosure

SEC source: 0001437749-19-020588 · rdgdoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,943

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 9,600 performance units and can earn up to a maximum of 48,000 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 October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 9,600 units being credited, subject to time based vesting above.

F2 · kind: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 9,600 units being credited, subject to time based vesting above.

F2 · shares: On October 25, 2018, the reporting person was granted a target number of 9,600 performance units and can earn up to a maximum of 48,000 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 October 22, 2019, the third price target had been met and approved by the Compensation Committee, which resulted in 9,600 units being credited, subject to time based vesting above.

Read SEC document
October 22, 2019 Filed Oct 25, 2019 00:15 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 23,338 $0.00 $0.00
Disclosure

SEC source: 0001437749-19-020588 · rdgdoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 323,343

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 75,678 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 23,338 units being credited, subject to time based vesting.

F1 · kind: On December 31, 2015, the reporting person was granted a target number of 75,678 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 23,338 units being credited, subject to time based vesting.

F1 · shares: On December 31, 2015, the reporting person was granted a target number of 75,678 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 23,338 units being credited, subject to time based vesting.

Read SEC document
October 01, 2019 Filed Oct 2, 2019 21:51 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,318 $156.92 $834,494.71
Disclosure

SEC source: 0001280452-19-000145 · edgardoc.xml · nonDerivative · entry 4

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,005

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 $156.80 to $157.00. 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.

Read SEC document
October 01, 2019 Filed Oct 2, 2019 21:51 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,305 $155.61 $669,896.31
Disclosure

SEC source: 0001280452-19-000145 · edgardoc.xml · nonDerivative · entry 3

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 305,323

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
September 30, 2019 Filed Oct 2, 2019 21:51 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 22,677 $156.16 $3,541,285.67
Disclosure

SEC source: 0001280452-19-000145 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 309,628

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 $156.00 to $157.35. 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 30, 2019 Filed Oct 2, 2019 21:51 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 252 $157.49 $39,687.48
Disclosure

SEC source: 0001280452-19-000145 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,305

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

Read SEC document
August 22, 2019 Filed Sep 3, 2019 22:14 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5 $156.17 $780.85
Disclosure

SEC source: 0001280452-19-000127 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,557

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

Read SEC document
August 16, 2019 Filed Aug 20, 2019 20:55 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 8,670 $151.71 $1,315,359.51
Disclosure

SEC source: 0001280452-19-000123 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,562

F2 · 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 $151.16 to $151.885. 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 15, 2019 Filed Aug 20, 2019 20:55 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 OtherCommon Stock 56 $117.71 $6,591.65
Disclosure

SEC source: 0001280452-19-000123 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 341,232

F1 · kind: Acquired through the Company's qualified ESPP program.

Read SEC document
August 09, 2019 Filed Aug 9, 2019 22:29 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,209 $148.94 $329,018.40
Disclosure

SEC source: 0001280452-19-000119 · edgardoc.xml · nonDerivative · entry 3

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 341,176

F2 · 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 $148.917 to $149.24. 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 22:29 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,106 $151.52 $470,605.59
Disclosure

SEC source: 0001280452-19-000119 · edgardoc.xml · nonDerivative · entry 2

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 343,385

F2 · 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 $151.50 to $151.68. 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 22:29 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,437 $150.42 $366,585.24
Disclosure

SEC source: 0001280452-19-000119 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 346,491

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 20:53 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,066 $140.60 $431,080.83
Disclosure

SEC source: 0001280452-19-000110 · edgardoc.xml · nonDerivative · entry 1

Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 348,928

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

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.