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 02, 2023 Filed May 4, 2023 20:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GrantCommon Stock | 8,685 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-23-006518 · marketforms-61201.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 277,862 F1 · shares: On February 2, 2021, the reporting person was granted a target number of 8,685 performance units that can be earned subject to the achievement of two performance goals related to certain environmental objectives, with a performance period through December 31, 2023. The performance units vest upon achievement of the goals, but no earlier than December 31, 2022. Once vested, the performance units have a post-vesting sales restriction period of one year. On May 2, 2023, the Compensation Committee of the Board of Directors determined that the environmental goals had been satisfied, which resulted in 8,685 units being credited with the vesting terms described above. Read SEC document |
| April 03, 2023 Filed Apr 6, 2023 20:49 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,360 | $487.99 | $2,127,636.40 |
DisclosureSEC source: 0001214659-23-005050 · marketforms-61133.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 269,177 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 · 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 $487.99 to $488.00. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| February 15, 2023 Filed Feb 17, 2023 21:03 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,497 | $530.00 | $793,410.00 |
DisclosureSEC source: 0001214659-23-002691 · marketforms-59509.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 273,537 F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan. F2 · balance_after: Ending balance includes 30 shares acquired on February 15, 2023 through the Company's qualified ESPP program. Read SEC document |
| February 13, 2023 Filed Feb 14, 2023 00:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,639 | $492.31 | $806,896.09 |
DisclosureSEC source: 0001214659-23-002176 · marketforms-59465.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 275,004 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 09, 2023 Filed Feb 10, 2023 21:14 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,129 | $520.00 | $1,107,080.00 |
DisclosureSEC source: 0001214659-23-001958 · marketforms-59443.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 276,643 F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan. Read SEC document |
| February 08, 2023 Filed Feb 10, 2023 21:13 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 6,922 | $462.41 | $3,200,802.02 |
DisclosureSEC source: 0001214659-23-001953 · marketforms-59438.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 278,772 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 07, 2023 Filed Feb 8, 2023 23:55 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GrantCommon Stock | 34,740 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-23-001833 · marketforms-59347.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 285,694 F2 · shares: On February 2, 2021, the reporting person was granted a target of 11,580 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, 2023, 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 23,160 additional shares being earned by the reporting person. Of the 34,740 restricted stock units that were awarded, 17,370 will vest immediately and 17,370 will vest quarterly in the next two years. Read SEC document |
| February 06, 2023 Filed Feb 8, 2023 23:55 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 723 | $446.88 | $323,094.24 |
DisclosureSEC source: 0001214659-23-001833 · marketforms-59347.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 250,954 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 24, 2023 Filed Jan 25, 2023 21:21 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 10,243 | $430.00 | $4,404,490.00 |
DisclosureSEC source: 0001214659-23-001095 · marketforms-58281.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 251,677 F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan. Read SEC document |
| January 12, 2023 Filed Jan 17, 2023 21:51 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,980 | $400.00 | $1,192,000.00 |
DisclosureSEC source: 0001214659-23-000710 · marketforms-58180.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 261,920 F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 trading plan. Read SEC document |
| January 03, 2023 Filed Jan 5, 2023 21:52 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 5,528 | $344.96 | $1,906,938.88 |
DisclosureSEC source: 0001214659-23-000282 · marketforms-58066.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 264,900 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 15, 2022 Filed Nov 17, 2022 00:00 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,377 | $408.68 | $971,432.36 |
DisclosureSEC source: 0001214659-22-013916 · marketforms-57556.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 270,428 Read SEC document |
| November 14, 2022 Filed Nov 17, 2022 00:00 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,385 | $390.33 | $540,607.05 |
DisclosureSEC source: 0001214659-22-013916 · marketforms-57556.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 272,805 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 04, 2022 Filed Nov 7, 2022 21:09 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 982 | $343.98 | $337,788.36 |
DisclosureSEC source: 0001214659-22-013244 · marketforms-57492.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 274,190 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 03, 2022 Filed Oct 4, 2022 20:32 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,305 | $372.60 | $1,604,043.00 |
DisclosureSEC source: 0001214659-22-011977 · marketforms-57220.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 275,172 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 |
| August 15, 2022 Filed Oct 4, 2022 20:32 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | OtherCommon Stock | 20 | $414.43 | $8,288.60 |
DisclosureSEC source: 0001214659-22-011977 · marketforms-57220.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 279,477 F1 · shares: 20 shares acquired through the Company's qualified ESPP program. Read SEC document |
| August 12, 2022 Filed Aug 12, 2022 22:58 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,633 | $525.95 | $858,876.35 |
DisclosureSEC source: 0001214659-22-010035 · marketforms-56888.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 279,457 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, 2022 Filed Aug 8, 2022 21:39 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 984 | $522.39 | $514,031.76 |
DisclosureSEC source: 0001214659-22-009749 · marketforms-56819.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 281,090 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 01, 2022 Filed Jul 6, 2022 21:11 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,515 | $361.58 | $1,632,533.70 |
DisclosureSEC source: 0001214659-22-008671 · marketforms-56611.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 282,074 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 · 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 $361.57 to $361.58. 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 27, 2022 Filed May 31, 2022 19:49 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,495 | $457.00 | $683,215.00 |
DisclosureSEC source: 0001214659-22-007609 · marketforms-56389.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 286,589 Read SEC document |
| May 24, 2022 Filed May 26, 2022 23:09 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,298 | $392.44 | $1,686,707.12 |
DisclosureSEC source: 0001214659-22-007480 · marketforms-56332.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 288,084 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 $391.84 to $393.05. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| May 12, 2022 Filed May 16, 2022 20:34 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,679 | $388.10 | $651,619.90 |
DisclosureSEC source: 0001214659-22-007053 · marketforms-56158.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 292,382 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 06, 2022 Filed May 5, 2022 21:00 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 986 | $453.16 | $446,812.21 |
DisclosureSEC source: 0001214659-22-006361 · marketforms-56064.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 294,061 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 |
| April 01, 2022 Filed Apr 5, 2022 20:26 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | Salecommon stock | 4,420 | $467.23 | $2,065,156.60 |
DisclosureSEC source: 0001214659-22-004857 · marketforms-55932.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 295,047 F3 · 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 16, 2022 Filed Apr 5, 2022 20:26 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 42 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-22-004857 · marketforms-55932.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 299,467 F1 · shares: The reported transaction involved a transfer of securities by gift for which no payment of consideration was received by the reporting person. F2 · balance_after: Ending balance includes 34 shares acquired on February 15, 2022 through the Company's qualified ESPP program. Read SEC document |
| February 14, 2022 Filed Feb 16, 2022 23:44 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,663 | $429.60 | $714,424.80 |
DisclosureSEC source: 0001214659-22-002838 · marketforms-55038.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 299,475 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 08, 2022 Filed Feb 9, 2022 23:23 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,700 | $401.12 | $681,904.00 |
DisclosureSEC source: 0001214659-22-002128 · marketforms-55037.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 301,138 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 07, 2022 Filed Feb 9, 2022 23:23 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 7,393 | $399.28 | $2,951,877.04 |
DisclosureSEC source: 0001214659-22-002128 · marketforms-55037.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 302,838 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 03, 2022 Filed Feb 4, 2022 22:07 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GrantCommon Stock | 39,699 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-22-001924 · marketforms-55265.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 310,231 F1 · shares: On February 4, 2020, the reporting person was granted a target of 13,233 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 3, 2022, 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 26,466 additional shares being earned by the reporting person. Of the restricted stock units that were awarded, 19,851 will vest immediately and 19,848 will vest quarterly in the next two years. Read SEC document |
| January 03, 2022 Filed Jan 5, 2022 21:11 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,305 | $490.87 | $2,113,195.35 |
DisclosureSEC source: 0001214659-22-000327 · marketforms-54758.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 270,532 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 30, 2021 Filed Dec 2, 2021 21:54 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,366 | $560.00 | $2,444,960.00 |
DisclosureSEC source: 0001214659-21-012593 · marketforms-54419.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 274,837 Read SEC document |
| November 22, 2021 Filed Nov 23, 2021 23:33 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 427 | $580.00 | $247,660.00 |
DisclosureSEC source: 0001214659-21-012210 · marketforms-54370.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 279,203 Read SEC document |
| November 12, 2021 Filed Nov 17, 2021 00:33 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,625 | $553.42 | $899,304.25 |
DisclosureSEC source: 0001214659-21-011919 · marketforms-54057.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 279,630 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: The amount of securities beneficially owned has been updated to reflect the correct amount of shares and corrects an inadvertent error on the Form 4 filed by the reporting person on November 10, 2021. Read SEC document |
| November 08, 2021 Filed Nov 10, 2021 23:00 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,022 | $548.27 | $1,108,601.94 |
DisclosureSEC source: 0001214659-21-011420 · marketforms-54056.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 281,255 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 01, 2021 Filed Oct 5, 2021 21:01 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | Disposition to issuerCommon Stock | 4,330 | $476.16 | $2,061,772.80 |
DisclosureSEC source: 0001214659-21-010248 · marketforms-53931.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 283,277 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 30, 2021 Filed Aug 30, 2021 21:06 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,886 | $500.00 | $2,443,000.00 |
DisclosureSEC source: 0001214659-21-009128 · marketforms-53692.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 287,607 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 $500.00 to $500.15. 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 26, 2021 Filed Aug 26, 2021 22:01 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 6,495 | $489.00 | $3,176,055.00 |
DisclosureSEC source: 0001214659-21-009034 · marketforms-53685.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 292,493 Read SEC document |
| August 19, 2021 Filed Aug 23, 2021 21:54 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,739 | $462.00 | $2,189,418.00 |
DisclosureSEC source: 0001214659-21-008921 · marketforms-53610.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 298,988 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 $462.00 to $462.04. 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 16, 2021 Filed Aug 23, 2021 21:54 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | OtherCommon Stock | 29 | $323.24 | $9,373.96 |
DisclosureSEC source: 0001214659-21-008921 · marketforms-53610.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 303,727 F1 · shares: Shares acquired through the Company's qualified ESPP program. Read SEC document |
| August 12, 2021 Filed Aug 16, 2021 20:44 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,651 | $457.10 | $754,672.10 |
DisclosureSEC source: 0001214659-21-008700 · marketforms-53584.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 303,698 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 09, 2021 Filed Aug 11, 2021 21:10 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,053 | $459.12 | $942,573.36 |
DisclosureSEC source: 0001214659-21-008388 · marketforms-53557.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 305,349 Read SEC document |
| August 02, 2021 Filed Aug 4, 2021 20:17 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 400 | $457.27 | $182,908.00 |
DisclosureSEC source: 0001214659-21-008148 · marketforms-53517.xml · nonDerivative · entry 4 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 307,402 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 $457.06 to $457.53. 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 02, 2021 Filed Aug 4, 2021 20:17 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,000 | $456.46 | $456,460.00 |
DisclosureSEC source: 0001214659-21-008148 · marketforms-53517.xml · nonDerivative · entry 3 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 307,802 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 $456.04 to $456.98. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| August 02, 2021 Filed Aug 4, 2021 20:17 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,200 | $455.46 | $546,552.00 |
DisclosureSEC source: 0001214659-21-008148 · marketforms-53517.xml · nonDerivative · entry 2 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 308,802 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 $455.00 to $455.93. 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 |
| August 02, 2021 Filed Aug 4, 2021 20:17 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 3,895 | $454.40 | $1,769,888.00 |
DisclosureSEC source: 0001214659-21-008148 · marketforms-53517.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 310,002 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 $453.86 to $454.63. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. F2 · balance_after: Ending balance adjusted to to reflect RSU release not previously reported. Read SEC document |
| July 06, 2021 Filed Jul 6, 2021 21:45 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 7,734 | $380.00 | $2,938,920.00 |
DisclosureSEC source: 0001214659-21-007306 · marketforms-53361.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 309,025 F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan. Read SEC document |
| July 01, 2021 Filed Jul 6, 2021 20:44 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,305 | $370.45 | $1,594,787.25 |
DisclosureSEC source: 0001214659-21-007292 · marketforms-53265.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 316,759 F1 · kind: 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 28, 2021 Filed May 29, 2021 00:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,485 | $343.76 | $854,243.60 |
DisclosureSEC source: 0001214659-21-006084 · marketforms-52988.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 321,064 F1 · balance_after: 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 $343.76-$343.77. 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 |
| May 12, 2021 Filed May 14, 2021 20:52 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,741 | $311.83 | $542,891.68 |
DisclosureSEC source: 0001214659-21-005447 · marketforms-52755.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 323,549 F1 · kind: 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 10, 2021 Filed May 12, 2021 20:15 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,196 | $326.41 | $716,804.70 |
DisclosureSEC source: 0001214659-21-005235 · marketforms-52540.xml · nonDerivative · entry 1 Xiao Deming · CIK 0001308647 · Pres. of MPS Asia Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 325,290 F1 · kind: 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: 49 shares acquired through the Company's qualified ESPP program. 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.