Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MONOLITHIC POWER SYSTEMS, INC.MPWR · Entity 877 | EVP, Global Operations | May 06, 2026 | May 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 / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 232,630 |
Reported balance
After 2026-05-06 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 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-derivative | Direct | 218,463 |
Reported balance
After 2026-05-06 transaction · row 2
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 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-derivative | Direct | 206,866 |
Reported balance
After 2026-05-06 transaction · row 3
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 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-derivative | Direct | 205,959 |
Reported balance
After 2026-05-06 transaction · row 4
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 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-derivative | Indirectby Spouse | 20,455 |
Reported balance
Holding disclosure · report date 2026-05-06 · row 5
Holding and transaction disclosures are not merged.
1 source rowRow 5 · Balance 20,455 |
| Common StockSEC Table I · non-derivative | IndirectChristopher Chao Xiao Trust | 4,336 |
Reported balance
Holding disclosure · report date 2026-05-06 · row 6
Holding and transaction disclosures are not merged.
1 source rowRow 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 APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 06, 2026 Filed May 8, 2026 22:15 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 907 | $1,661.38 | $1,506,871.66 |
DisclosureSEC source: 0001214659-26-005858 · marketforms-73083.xml · nonDerivative · entry 4 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 205,959 F5 · 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 $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. Read SEC document |
| May 06, 2026 Filed May 8, 2026 22:15 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 11,597 | $1,657.93 | $19,227,014.21 |
DisclosureSEC source: 0001214659-26-005858 · marketforms-73083.xml · nonDerivative · entry 3 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 206,866 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 $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. Read SEC document |
| May 06, 2026 Filed May 8, 2026 22:15 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 14,167 | $1,652.80 | $23,415,217.60 |
DisclosureSEC source: 0001214659-26-005858 · marketforms-73083.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 218,463 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 $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. Read SEC document |
| May 06, 2026 Filed May 8, 2026 22:15 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 3,329 | $1,648.38 | $5,487,457.02 |
DisclosureSEC source: 0001214659-26-005858 · marketforms-73083.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 232,630 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 $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 · balance_after: Ending balance includes 27 shares acquired on February 17, 2026 through the Company's qualified ESPP program. Read SEC document |
| February 06, 2026 Filed Feb 10, 2026 23:59 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 22,875 | $1,171.16 | $26,790,369.64 |
DisclosureSEC source: 0001214659-26-001451 · marketforms-72094.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 235,932 F1 · shares: The reported sales were to cover taxes upon the release of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| February 03, 2026 Filed Feb 6, 2026 00:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GrantCommon Stock | 57,170 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-26-001256 · marketforms-72011.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 258,807 F1 · shares: On February 7, 2023, the reporting person was granted performance-based restricted stock units ("PSUs") subject to the achievement of performance conditions over a three-year performance period. On February 3, 2026, the Company's Compensation Committee of the Board of Directors certified and approved the achievement of the performance criteria for the PSUs, which resulted in 57,170 shares being awarded to the reporting person, subject to tax withholdings. All of the shares fully vested and were released on February 3, 2026, pursuant to the grant agreement. Read SEC document |
| October 30, 2025 Filed Oct 31, 2025 20:39 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | Tax withholdingCommon Stock | 54,543 | $1,096.63 | $59,813,490.09 |
DisclosureSEC source: 0001214659-25-015706 · marketforms-71178.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 201,637 F1 · shares: The sales transaction reported in this Form 4 represents shares of common stock withheld by the Company to satisfy the income tax obligations in connection with the earnout and vesting of the market-based restricted stock units granted in October 2022, previously reported in a Form 4. Read SEC document |
| October 25, 2025 Filed Oct 29, 2025 01:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GrantCommon Stock | 135,520 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-25-015475 · marketforms-71130.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 256,180 F1 · shares: On October 25, 2022, the reporting person was granted market-based restricted stock units ("MSUs") subject to the achievement of five stock price targets and relative total stockholder return percentile rank over a three-year performance and vesting period. On October 25, 2025, the Company's Compensation Committee of the Board of Directors certified and approved the achievement of the performance criteria for the MSUs, which resulted in 135,520 shares being awarded to the reporting person. All of the shares fully vested on October 25, 2025, pursuant to the grant agreement. Read SEC document |
| August 11, 2025 Filed Aug 12, 2025 21:45 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 945 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-25-011873 · marketforms-70270.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 120,660 F2 · price: 945 shares were transferred from the reporting person's direct holdings to Christopher Chao Xiao Trust. No funds were exchanged and no sale of shares occurred in the transfer. Read SEC document |
| August 11, 2025 Filed Aug 12, 2025 21:45 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 945 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-25-011873 · marketforms-70270.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Indirect · Christopher Chao Xiao Trust Disclosed balance after: 4,336 F1 · price: 945 shares were received by Christopher Chao Xiao Trust from the reporting person. No funds were exchanged and no sale of shares occurred in the transfer. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 23:58 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 39,999 | $780.00 | $31,199,220.00 |
DisclosureSEC source: 0001214659-25-011471 · marketforms-70183.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 121,605 F1 · balance_after: Ending balance includes 27 shares acquired on February 17, 2025 through the Company's qualified ESPP program. Read SEC document |
| February 10, 2025 Filed Feb 12, 2025 20:45 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 662 | $717.10 | $474,720.60 |
DisclosureSEC source: 0001214659-25-002484 · marketforms-68080.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 161,577 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| November 08, 2024 Filed Nov 13, 2024 22:16 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 866 | $765.14 | $662,611.24 |
DisclosureSEC source: 0001214659-24-018890 · marketforms-67310.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 162,239 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| August 27, 2024 Filed Aug 29, 2024 21:05 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 9,259 | $950.00 | $8,796,050.00 |
DisclosureSEC source: 0001214659-24-015601 · marketforms-66852.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Indirect · by Spouse Disclosed balance after: 20,455 Read SEC document |
| August 22, 2024 Filed Aug 22, 2024 23:48 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 10,000 | $950.00 | $9,500,000.00 |
DisclosureSEC source: 0001214659-24-015184 · marketforms-66837.xml · nonDerivative · entry 3 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Indirect · by Spouse Disclosed balance after: 29,714 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 $950.00 to $950.11. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| August 22, 2024 Filed Aug 22, 2024 23:48 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 8,968 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-24-015184 · marketforms-66837.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Indirect · by Spouse Disclosed balance after: 39,714 F2 · price: 8,968 shares were received by the spouse from the reporting person. No funds were exchanged and no sale of shares occurred in the transfer. Read SEC document |
| August 22, 2024 Filed Aug 22, 2024 23:48 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 8,968 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-24-015184 · marketforms-66837.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 163,105 F1 · price: 8,968 shares were transferred from the reporting person's direct holdings to his spouse. No funds were exchanged and no sale of shares occurred in the transfer. Read SEC document |
| August 19, 2024 Filed Aug 21, 2024 20:28 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 30,291 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-24-015122 · marketforms-66823.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Indirect · by Spouse Disclosed balance after: 30,746 F3 · price: 30,291 shares were received by the spouse from the reporting person. No funds were exchanged and no sale of shares occurred in the transfer. Read SEC document |
| August 19, 2024 Filed Aug 21, 2024 20:28 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 30,291 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-24-015122 · marketforms-66823.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 172,073 F1 · price: 30,291 shares were transferred from the reporting person's direct holdings to his spouse. No funds were exchanged and no sale of shares occurred in the transfer. F2 · balance_after: Ending balance includes 10 shares acquired on August 15, 2024 through the Company's qualified ESPP program. Read SEC document |
| August 08, 2024 Filed Aug 12, 2024 18:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 859 | $778.39 | $668,637.01 |
DisclosureSEC source: 0001214659-24-014224 · marketforms-66761.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 202,354 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| July 22, 2024 Filed Jul 24, 2024 20:44 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 3,205 | $831.58 | $2,665,213.90 |
DisclosureSEC source: 0001214659-24-012924 · marketforms-66633.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 203,213 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| May 22, 2024 Filed May 23, 2024 00:20 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,300 | $769.40 | $1,000,220.00 |
DisclosureSEC source: 0001214659-24-009814 · marketforms-66010.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 206,418 Read SEC document |
| May 10, 2024 Filed May 10, 2024 22:39 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 29 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-24-008845 · marketforms-65825.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 207,718 F1 · shares: The reported transaction involved a transfer of securities by gift to an unrelated party for which no payment of consideration was received by the reporting person. Read SEC document |
| May 08, 2024 Filed May 9, 2024 16:47 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 869 | $690.02 | $599,627.38 |
DisclosureSEC source: 0001214659-24-008657 · marketforms-65792.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · EVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 207,747 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. F2 · balance_after: Ending balance includes 36 shares acquired on February 15, 2024 through the Company's qualified ESPP program. Read SEC document |
| February 08, 2024 Filed Feb 9, 2024 19:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 859 | $680.00 | $584,120.00 |
DisclosureSEC source: 0001214659-24-002238 · marketforms-64626.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 208,580 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| February 05, 2024 Filed Feb 7, 2024 16:26 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 982 | $641.00 | $629,462.00 |
DisclosureSEC source: 0001214659-24-002068 · marketforms-64587.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 209,439 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 30 | $596.19 | $17,885.70 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 11 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 210,421 Read SEC document |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 204 | $594.13 | $121,202.52 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 10 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 210,451 Read SEC document |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 10 | $593.00 | $5,930.00 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 9 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 210,655 Read SEC document |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 200 | $592.38 | $118,476.00 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 8 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 210,665 F7 · 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 $592.30 to $592.46. 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 |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 930 | $591.34 | $549,946.20 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 7 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 210,865 F6 · 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 $591.00 to $591.77. 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 |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 3,718 | $590.37 | $2,194,995.66 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 6 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 211,795 F5 · 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 $590.00 to $590.93. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,387 | $589.52 | $1,407,184.24 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 5 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 215,513 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 $589.00 to $589.94. 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 |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,757 | $588.44 | $1,033,889.08 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 4 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 217,900 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 $588.09 to $588.94. 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 |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,079 | $587.84 | $634,279.36 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 3 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 219,657 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 $587.43 to $587.98. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 700 | $586.21 | $410,347.00 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 220,736 F1 · 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 $586.07 to $586.55. 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 |
| January 10, 2024 Filed Jan 11, 2024 16:37 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 500 | $584.39 | $292,195.00 |
DisclosureSEC source: 0001214659-24-000606 · marketforms-64288.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 221,436 Read SEC document |
| January 04, 2024 Filed Jan 8, 2024 19:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 25,314 | $583.14 | $14,761,605.96 |
DisclosureSEC source: 0001214659-24-000409 · marketforms-64035.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 221,936 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| November 14, 2023 Filed Nov 16, 2023 22:03 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 3,391 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-23-015286 · marketforms-63543.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Indirect · Christopher Chao Xiao Trust Disclosed balance after: 3,391 F1 · shares: The reported transaction involved a transfer of securities by gift from the reporting person to a trust for which no payment of consideration was received by the reporting person. The Company determined that the reporting person continues to be a beneficial owner of the securities under the trust. Read SEC document |
| November 14, 2023 Filed Nov 16, 2023 22:03 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 3,391 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-23-015286 · marketforms-63543.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 247,250 F1 · shares: The reported transaction involved a transfer of securities by gift from the reporting person to a trust for which no payment of consideration was received by the reporting person. The Company determined that the reporting person continues to be a beneficial owner of the securities under the trust. Read SEC document |
| November 08, 2023 Filed Nov 9, 2023 23:04 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 859 | $490.39 | $421,245.01 |
DisclosureSEC source: 0001214659-23-014765 · marketforms-63499.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 250,641 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| November 06, 2023 Filed Nov 7, 2023 22:03 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 982 | $492.92 | $484,047.44 |
DisclosureSEC source: 0001214659-23-014667 · marketforms-63480.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 251,500 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| October 02, 2023 Filed Oct 4, 2023 20:21 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,305 | $458.30 | $1,972,981.50 |
DisclosureSEC source: 0001214659-23-013132 · marketforms-62759.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 252,482 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. F2 · balance_after: Ending balance includes 17 shares acquired on August 15, 2023 through the Company's qualified ESPP program. Read SEC document |
| August 08, 2023 Filed Aug 10, 2023 21:59 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 874 | $530.26 | $463,447.24 |
DisclosureSEC source: 0001214659-23-011009 · marketforms-62213.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 256,770 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| August 04, 2023 Filed Aug 7, 2023 21:03 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 988 | $526.53 | $520,211.64 |
DisclosureSEC source: 0001214659-23-010819 · marketforms-62196.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 257,644 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| July 21, 2023 Filed Jul 25, 2023 22:34 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 9,615 | $534.23 | $5,136,621.45 |
DisclosureSEC source: 0001214659-23-009960 · marketforms-62131.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 258,632 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| July 03, 2023 Filed Jul 5, 2023 20:29 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,305 | $537.79 | $2,315,185.95 |
DisclosureSEC source: 0001214659-23-009269 · marketforms-62035.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 268,247 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| May 09, 2023 Filed May 10, 2023 22:04 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 857 | $409.79 | $351,190.03 |
DisclosureSEC source: 0001214659-23-006756 · marketforms-61417.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 272,552 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| May 04, 2023 Filed May 5, 2023 20:39 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 991 | $459.60 | $455,463.60 |
DisclosureSEC source: 0001214659-23-006574 · marketforms-61404.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 273,409 F1 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
| May 03, 2023 Filed May 4, 2023 20:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 3,462 | $463.55 | $1,604,810.10 |
DisclosureSEC source: 0001214659-23-006518 · marketforms-61201.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 274,400 F2 · shares: The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.