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Xiao Deming

Disclosed activity across 1 company

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48680
SEC CIK
0001308647

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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

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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
July 23, 2019 Filed Jul 24, 2019 21:04 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionRestricted Stock Units · Derivative 9,600 $0.00 $0.00
Disclosure

SEC source: 0001280452-19-000102 · edgardoc.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,800

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.

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 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 9,600 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 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 July 23, 2019, the second 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.

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 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 9,600 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 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 July 23, 2019, the second 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
July 23, 2019 Filed Jul 24, 2019 21:04 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 9,600 $0.00 $0.00
Disclosure

SEC source: 0001280452-19-000102 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 351,994

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 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 9,600 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 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 July 23, 2019, the second 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.

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 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 9,600 units being credited, subject to time based vesting above.

Read SEC document
July 01, 2019 Filed Jul 3, 2019 21:56 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,305 $139.56 $600,789.01
Disclosure

SEC source: 0001280452-19-000085 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 342,394

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 17, 2019 Filed May 20, 2019 21:05 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,364 $128.16 $431,142.01
Disclosure

SEC source: 0001280452-19-000069 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337,099

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 $128.00 to $128.30. 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 16, 2019 Filed May 20, 2019 21:05 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,474 $129.50 $449,871.54
Disclosure

SEC source: 0001280452-19-000069 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 340,463

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 $129.30 to $129.665. 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 21:12 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,470 $138.03 $340,923.23
Disclosure

SEC source: 0001280452-19-000064 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 343,937

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 21:55 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,144 $144.49 $454,280.65
Disclosure

SEC source: 0001280452-19-000057 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 346,407

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 21:56 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionRestricted Stock Units · Derivative 9,600 $0.00 $0.00
Disclosure

SEC source: 0001280452-19-000085 · edgardoc.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,400

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.

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 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 9,600 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 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 April 23, 2019, the first 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.

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 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 9,600 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 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 April 23, 2019, the first 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
April 23, 2019 Filed Jul 3, 2019 21:56 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 9,600 $0.00 $0.00
Disclosure

SEC source: 0001280452-19-000085 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 359,151

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 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 9,600 units being credited, subject to time based vesting above.

F1 · kind: On October 25, 2018, the reporting person was granted a target number of 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 April 23, 2019, the first 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.

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 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 9,600 units being credited, subject to time based vesting above.

Read SEC document
April 01, 2019 Filed Apr 2, 2019 21:37 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,305 $138.60 $596,663.96
Disclosure

SEC source: 0001280452-19-000049 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 349,551

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 25, 2019 Filed Feb 27, 2019 23:20 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 162 $138.63 $22,458.58
Disclosure

SEC source: 0001280452-19-000036 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 353,856

F2 · kind: Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance Program.

Read SEC document
February 25, 2019 Filed Feb 27, 2019 23:20 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 13,817 $138.74 $1,917,014.79
Disclosure

SEC source: 0001280452-19-000036 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 354,018

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 $138.35 to $139.06. 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 27, 2019 23:20 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 OtherCommon Stock 123 $117.71 $14,478.08
Disclosure

SEC source: 0001280452-19-000036 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 367,835

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

Read SEC document
February 12, 2019 Filed Feb 13, 2019 22:17 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 21,308 $130.66 $2,784,041.49
Disclosure

SEC source: 0001280452-19-000028 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 367,712

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 22:17 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantCommon Stock 74,331 $30.00 $2,229,930.00
Disclosure

SEC source: 0001280452-19-000028 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 389,020

F1 · shares: On February 7, 2017, the reporting person was granted a target of 28,589 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 45,742 additional shares being earned by the reporting person. Of the restricted stock units that were awarded, 37,167 will vest immediately and 37,164 will vest quarterly in the next two years.

Read SEC document
February 04, 2019 Filed Feb 5, 2019 23:05 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,623 $129.59 $469,500.58
Disclosure

SEC source: 0001280452-19-000010 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 314,689

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 05, 2018 Filed Nov 6, 2018 22:20 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,819 $121.73 $586,625.06
Disclosure

SEC source: 0001280452-18-000140 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 318,312

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 23:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantRestricted Stock Units · Derivative 48,000 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000133 · edgardoc.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,000

Underlying: Common Stock · 48,000 shares

Expires not disclosed

F3 · security: 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 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 9,600 performance units and can earn up to a maximum of 48,000 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 · deemedExecutionDate: 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 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 9,600 performance units and can earn up to a maximum of 48,000 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 9,600 performance units and can earn up to a maximum of 48,000 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 23:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionPerformance Shares · Derivative 15,075 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000133 · edgardoc.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,214

Underlying: Common Stock · 15,075 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 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 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 15,075 units being credited, subject to time based vesting.

F2 · 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 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 15,075 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 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 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 15,075 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 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 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 15,075 units being credited, subject to time based vesting.

Read SEC document
October 25, 2018 Filed Oct 29, 2018 23:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionPerformance Shares · Derivative 12,885 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000133 · edgardoc.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,289

Underlying: Common Stock · 12,885 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 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 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 12,885 units being credited, subject to time based vesting above.

F1 · kind: On December 31, 2015, the reporting person was granted a target number of 75,678 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 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 12,885 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 75,678 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 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 12,885 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 75,678 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 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 12,885 units being credited, subject to time based vesting above.

Read SEC document
October 25, 2018 Filed Oct 29, 2018 23:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 15,075 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000133 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 323,131

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 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 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 15,075 units being credited, subject to time based vesting.

F2 · 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 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 15,075 units being credited, subject to time based vesting.

F2 · 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 25, 2018,the Compensation Committee determined one of the operational goals for the third tranche of performance units had been satisfied, which resulted in 15,075 units being credited, subject to time based vesting.

Read SEC document
October 25, 2018 Filed Oct 29, 2018 23:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 Exercise / conversionCommon Stock 12,885 $0.00 $0.00
Disclosure

SEC source: 0001280452-18-000133 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 308,056

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 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 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 12,885 units being credited, subject to time based vesting above.

F1 · kind: On December 31, 2015, the reporting person was granted a target number of 75,678 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 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 12,885 units being credited, subject to time based vesting above.

F1 · shares: On December 31, 2015, the reporting person was granted a target number of 75,678 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 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 12,885 units being credited, subject to time based vesting above.

Read SEC document
August 31, 2018 Filed Sep 5, 2018 21:24 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,000 $149.10 $745,500.00
Disclosure

SEC source: 0001280452-18-000116 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 295,171

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

Read SEC document
August 31, 2018 Filed Sep 5, 2018 21:24 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,000 $148.00 $740,000.00
Disclosure

SEC source: 0001280452-18-000116 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,171

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

Read SEC document
August 27, 2018 Filed Aug 29, 2018 20:55 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,334 $150.00 $500,105.00
Disclosure

SEC source: 0001280452-18-000112 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 305,171

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 $150.00 to $150.03. 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 23, 2018 Filed Aug 27, 2018 21:01 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 144 $145.65 $20,973.37
Disclosure

SEC source: 0001280452-18-000110 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 308,505

F2 · kind: Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance Program.

Read SEC document
August 23, 2018 Filed Aug 27, 2018 21:01 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,353 $145.83 $780,613.54
Disclosure

SEC source: 0001280452-18-000110 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 308,649

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 $145.80 to $145.96. 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, 2018 Filed Aug 27, 2018 21:01 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 OtherCommon Stock 73 $98.74 $7,208.35
Disclosure

SEC source: 0001280452-18-000110 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 314,002

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

Read SEC document
August 10, 2018 Filed Aug 14, 2018 21:43 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 11,081 $138.93 $1,539,452.30
Disclosure

SEC source: 0001280452-18-000102 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 313,929

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 $138.90 to $138.953. 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 21:34 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,710 $135.99 $232,548.37
Disclosure

SEC source: 0001280452-18-000100 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 325,010

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 21:34 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,019 $135.45 $408,937.14
Disclosure

SEC source: 0001280452-18-000100 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 326,720

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 18, 2018 Filed May 22, 2018 21:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,816 $130.00 $626,080.00
Disclosure

SEC source: 0001280452-18-000084 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,739

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

Read SEC document
May 04, 2018 Filed May 7, 2018 21:20 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,101 $122.66 $257,713.91
Disclosure

SEC source: 0001280452-18-000073 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 334,555

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 03, 2018 Filed May 7, 2018 21:20 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,542 $118.43 $419,484.02
Disclosure

SEC source: 0001280452-18-000073 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 336,656

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 15, 2018 Filed May 7, 2018 21:20 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 OtherCommon Stock 162 $86.51 $14,015.11
Disclosure

SEC source: 0001280452-18-000073 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 340,198

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

Read SEC document
February 12, 2018 Filed Feb 13, 2018 22:03 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 29,203 $108.19 $3,159,595.22
Disclosure

SEC source: 0001280452-18-000042 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 340,036

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 07, 2018 Filed Feb 9, 2018 01:04 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantCommon Stock 98,760 $20.00 $1,975,200.00
Disclosure

SEC source: 0001280452-18-000022 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 369,239

F1 · shares: On February 2, 2016, the reporting person was granted a target of 40,193 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 7, 2018, the Company's Board of Directors determined that those performance criteria for the restricted stock units had been satisfied, which resulted in 58,567 additional shares being achieved and earned by the reporting person. Of the restricted stock units that were awarded, 49,380 will vest immediately and 49,380 will vest quarterly in the next two years.

Read SEC document
February 05, 2018 Filed Feb 5, 2018 23:45 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 4,382 $113.85 $498,908.67
Disclosure

SEC source: 0001280452-18-000009 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,479

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 06, 2017 Filed Nov 7, 2017 23:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 6,004 $123.06 $738,867.85
Disclosure

SEC source: 0001280452-17-000121 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 274,861

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
August 15, 2017 Filed Nov 7, 2017 23:16 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 OtherCommon Stock 144 $73.12 $10,528.85
Disclosure

SEC source: 0001280452-17-000121 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280,865

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

Read SEC document
August 07, 2017 Filed Aug 7, 2017 23:15 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,381 $102.19 $345,493.23
Disclosure

SEC source: 0001280452-17-000096 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280,721

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 04, 2017 Filed Aug 7, 2017 23:15 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,623 $101.66 $266,661.79
Disclosure

SEC source: 0001280452-17-000096 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 284,102

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 24, 2017 Filed May 25, 2017 21:22 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 30 $95.44 $2,863.20
Disclosure

SEC source: 0001280452-17-000073 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Spouse

Disclosed balance after: 1,101

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.

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May 18, 2017 Filed May 19, 2017 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,352 $93.64 $501,142.01
Disclosure

SEC source: 0001280452-17-000071 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 286,725

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 $92.15 to $94.07. 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.

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May 05, 2017 Filed May 8, 2017 21:36 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,380 $92.55 $312,833.20
Disclosure

SEC source: 0001280452-17-000065 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 292,077

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.

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May 04, 2017 Filed May 8, 2017 21:36 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,623 $91.89 $241,035.60
Disclosure

SEC source: 0001280452-17-000065 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 295,457

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.

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April 24, 2017 Filed Apr 26, 2017 21:10 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 12 $94.99 $1,139.88
Disclosure

SEC source: 0001280452-17-000054 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Spouse

Disclosed balance after: 1,131

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.

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March 16, 2017 Filed Mar 17, 2017 21:02 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 83 $93.05 $7,723.15
Disclosure

SEC source: 0001280452-17-000048 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Spouse

Disclosed balance after: 1,143

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.

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February 28, 2017 Filed Mar 2, 2017 23:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 10,419 $88.08 $917,720.11
Disclosure

SEC source: 0001280452-17-000043 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 298,080

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 $88.08 to $88.18. 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.

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February 28, 2017 Filed Mar 2, 2017 23:07 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 200 $88.08 $17,615.12
Disclosure

SEC source: 0001280452-17-000043 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 308,499

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

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