Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MONOLITHIC POWER SYSTEMS, INC.MPWR · Entity 877 | EVP & General Counsel | August 31, 2026 | September 02, 2026 |
| Super Micro Computer, Inc.SMCI · Entity 3204 | Director | August 03, 2021 | August 05, 2021 |
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 August 31, 2026 · Filed September 02, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 142,218 |
Reported balance
After 2026-08-31 transaction · row 1
1 source rowRow 1 · 2026-08-31 · Gift · Disposed 2,000 · Balance 142,218 F1: 2,000 shares were transferred from the reporting person's direct holdings to C&T Family Irrevocable Trust, of which the reporting person is a trustee. No funds were exchanged and no sale of shares occurred in the transfer. |
| Common StockSEC Table I · non-derivative | IndirectC&T Family Trust | 2,000 |
Reported balance
After 2026-08-31 transaction · row 2
Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source rowRow 2 · 2026-08-31 · Gift · Acquired 2,000 · Balance 2,000 F2: 2,000 shares were received by C&T Family Irrevocable Trust, of which the reporting person is a trustee, from the reporting person's direct holdings. No funds were exchanged and no sale of shares occurred in the transfer. |
| Common StockSEC Table I · non-derivative | IndirectC&T Discovery Foundation | 1,000 |
Reported balance
Holding disclosure · report date 2026-08-31 · row 3
Holding and transaction disclosures are not merged.
1 source rowRow 3 · Balance 1,000 |
Filing footnotes · ownership attribution and instrument terms
F1: 2,000 shares were transferred from the reporting person's direct holdings to C&T Family Irrevocable Trust, of which the reporting person is a trustee. No funds were exchanged and no sale of shares occurred in the transfer.
F2: 2,000 shares were received by C&T Family Irrevocable Trust, of which the reporting person is a trustee, from the reporting person's direct holdings. No funds were exchanged and no sale of shares occurred in the transfer.
Super Micro Computer, Inc.
Report date August 03, 2021 · Filed August 05, 2021
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 5,807 |
Reported balance
After 2021-08-03 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2021-08-03 · Grant · Acquired 5,807 · Balance 5,807 F1: Each restricted stock unit represents a contingent right to receive one share of SMCI common stock. F2: Restricted stock units were granted with respect to service in fiscal 2022. The total number of restricted stock units will fully vest on June 30, 2022; provided, however, in the event service ends before June 30, 2022, a pro rata number of units will vest based upon service from July 1, 2021 to the last day of service. Vested units are settled in shares of common stock. |
Filing footnotes · ownership attribution and instrument terms
F1: Each restricted stock unit represents a contingent right to receive one share of SMCI common stock.
F2: Restricted stock units were granted with respect to service in fiscal 2022. The total number of restricted stock units will fully vest on June 30, 2022; provided, however, in the event service ends before June 30, 2022, a pro rata number of units will vest based upon service from July 1, 2021 to the last day of service. Vested units are settled in shares of common stock.
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 |
|---|---|---|---|---|---|---|
| August 31, 2026 Filed Sep 2, 2026 21:26 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 2,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-26-011363 · marketforms-73915.xml · nonDerivative · entry 2 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Indirect · C&T Family Trust Disclosed balance after: 2,000 F2 · shares: 2,000 shares were received by C&T Family Irrevocable Trust, of which the reporting person is a trustee, from the reporting person's direct holdings. No funds were exchanged and no sale of shares occurred in the transfer. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 21:26 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 2,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-26-011363 · marketforms-73915.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 142,218 F1 · shares: 2,000 shares were transferred from the reporting person's direct holdings to C&T Family Irrevocable Trust, of which the reporting person is a trustee. No funds were exchanged and no sale of shares occurred in the transfer. Read SEC document |
| May 27, 2026 Filed May 29, 2026 22:43 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 7,565 | $1,700.00 | $12,860,500.00 |
DisclosureSEC source: 0001214659-26-006933 · marketforms-73294.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 144,218 Read SEC document |
| May 22, 2026 Filed May 27, 2026 21:07 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 5,000 | $1,586.43 | $7,932,150.00 |
DisclosureSEC source: 0001214659-26-006798 · marketforms-73255.xml · nonDerivative · entry 2 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 151,783 Read SEC document |
| May 22, 2026 Filed May 27, 2026 21:07 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 200 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-26-006798 · marketforms-73255.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 156,783 F1 · price: The reported transaction involved a transfer of securities from the reporting person's direct holdings to an individual who is not an immediate family member sharing the same household. No funds were exchanged and no sale of shares occurred in the transfer. Following the completion of the transfer, the reporting person no longer retains any pecuniary interest in the shares. Read SEC document |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 120 | $1,321.94 | $158,632.80 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 10 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 156,983 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F11 · 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 $1,321.50 to $1,322.56. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 840 | $1,319.25 | $1,108,170.00 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 9 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 157,103 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F10 · 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 $1,316.25 to $1,321.04. 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 |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 4,244 | $1,312.82 | $5,571,608.08 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 8 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 157,943 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F9 · 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 $1,310.27 to $1,315.08. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,279 | $1,308.30 | $1,673,315.70 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 7 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 162,187 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F8 · 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 $1,305.08 to $1,310.00. 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 |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 800 | $1,302.52 | $1,042,016.00 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 6 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 163,466 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,299.99 to $1,304.82. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 400 | $1,292.08 | $516,832.00 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 5 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 164,266 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,290.95 to $1,294.78. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 120 | $1,287.12 | $154,454.40 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 4 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 164,666 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,284.26 to $1,289.24. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 240 | $1,279.55 | $307,092.00 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 3 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 164,786 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,277.78 to $1,281.49. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 360 | $1,270.29 | $457,304.40 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 2 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 165,026 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,269.36 to $1,272.23. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 08, 2026 Filed Apr 10, 2026 16:46 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 560 | $1,266.48 | $709,228.80 |
DisclosureSEC source: 0001214659-26-004535 · marketforms-72913.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 165,386 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,264.04 to $1,268.56. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 17:42 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,396 | $1,179.50 | $1,646,582.00 |
DisclosureSEC source: 0001214659-26-004460 · marketforms-72903.xml · nonDerivative · entry 8 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 165,946 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F9 · 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 $1,178.53 to $1,180.83. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 17:42 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,680 | $1,176.35 | $1,976,268.00 |
DisclosureSEC source: 0001214659-26-004460 · marketforms-72903.xml · nonDerivative · entry 7 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 167,342 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F8 · 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 $1,173.31 to $1,178.29. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 17:42 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,036 | $1,170.38 | $2,382,893.68 |
DisclosureSEC source: 0001214659-26-004460 · marketforms-72903.xml · nonDerivative · entry 6 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 169,022 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,168.24 to $ 1,172.42. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 17:42 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 684 | $1,165.66 | $797,311.44 |
DisclosureSEC source: 0001214659-26-004460 · marketforms-72903.xml · nonDerivative · entry 5 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 171,058 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,163.16 to $1,168.12. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 17:42 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 560 | $1,159.62 | $649,387.20 |
DisclosureSEC source: 0001214659-26-004460 · marketforms-72903.xml · nonDerivative · entry 4 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 171,742 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,156.58 to $1,161.42. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 17:42 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 480 | $1,149.05 | $551,544.00 |
DisclosureSEC source: 0001214659-26-004460 · marketforms-72903.xml · nonDerivative · entry 3 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 172,302 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,147.58 to $1,152.19. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 17:42 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 556 | $1,144.42 | $636,297.52 |
DisclosureSEC source: 0001214659-26-004460 · marketforms-72903.xml · nonDerivative · entry 2 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 172,782 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,141.91 to $ 1,146.02. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 17:42 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 244 | $1,139.96 | $278,150.24 |
DisclosureSEC source: 0001214659-26-004460 · marketforms-72903.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 173,338 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,136.69 to $1,141.64. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 01, 2026 Filed Apr 3, 2026 21:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 292 | $1,136.99 | $332,001.08 |
DisclosureSEC source: 0001214659-26-004341 · marketforms-72869.xml · nonDerivative · entry 5 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 173,582 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,136.47 to $1,137.71. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 01, 2026 Filed Apr 3, 2026 21:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 188 | $1,135.91 | $213,551.08 |
DisclosureSEC source: 0001214659-26-004341 · marketforms-72869.xml · nonDerivative · entry 4 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 173,874 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,135.41 to $1,136.26. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| April 01, 2026 Filed Apr 3, 2026 21:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 160 | $1,134.14 | $181,462.40 |
DisclosureSEC source: 0001214659-26-004341 · marketforms-72869.xml · nonDerivative · entry 3 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 174,062 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,133.77 to $1,134.75. 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 |
| April 01, 2026 Filed Apr 3, 2026 21:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 184 | $1,132.15 | $208,315.60 |
DisclosureSEC source: 0001214659-26-004341 · marketforms-72869.xml · nonDerivative · entry 2 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 174,222 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,131.84 to $1,132.46. 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 |
| April 01, 2026 Filed Apr 3, 2026 21:36 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 576 | $1,131.24 | $651,594.24 |
DisclosureSEC source: 0001214659-26-004341 · marketforms-72869.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 174,406 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,130.82 to $1,131.76. 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 |
| March 30, 2026 Filed Apr 1, 2026 22:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 80 | $1,041.12 | $83,289.60 |
DisclosureSEC source: 0001214659-26-004185 · marketforms-72823.xml · nonDerivative · entry 8 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 174,982 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F10 · 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 $1,039.30 to $1,042.50. 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 |
| March 30, 2026 Filed Apr 1, 2026 22:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 166 | $1,035.60 | $171,909.60 |
DisclosureSEC source: 0001214659-26-004185 · marketforms-72823.xml · nonDerivative · entry 7 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 175,062 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F9 · 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 $1,033.98 to $1,037.25. 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 |
| March 30, 2026 Filed Apr 1, 2026 22:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,440 | $1,029.21 | $2,511,272.40 |
DisclosureSEC source: 0001214659-26-004185 · marketforms-72823.xml · nonDerivative · entry 6 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 175,228 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. F8 · 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 $1,027.37 to $1,032.40. 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 |
| March 30, 2026 Filed Apr 1, 2026 22:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,200 | $1,023.00 | $2,250,600.00 |
DisclosureSEC source: 0001214659-26-004185 · marketforms-72823.xml · nonDerivative · entry 5 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 177,668 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,020.71 to $1,025.36. 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 |
| March 30, 2026 Filed Apr 1, 2026 22:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 3,194 | $1,017.22 | $3,249,000.68 |
DisclosureSEC source: 0001214659-26-004185 · marketforms-72823.xml · nonDerivative · entry 4 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 179,868 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,013.83 to $1,018.85. 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 |
| March 30, 2026 Filed Apr 1, 2026 22:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 3,360 | $1,009.63 | $3,392,356.80 |
DisclosureSEC source: 0001214659-26-004185 · marketforms-72823.xml · nonDerivative · entry 3 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 183,062 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,008.00 to $1,012.65. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| March 30, 2026 Filed Apr 1, 2026 22:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 9,080 | $1,005.18 | $9,127,034.40 |
DisclosureSEC source: 0001214659-26-004185 · marketforms-72823.xml · nonDerivative · entry 2 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 186,422 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $1,003.06 to $1,007.85. 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 |
| March 30, 2026 Filed Apr 1, 2026 22:41 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 5,154 | $1,000.81 | $5,158,174.74 |
DisclosureSEC source: 0001214659-26-004185 · marketforms-72823.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 195,502 F1 · shares: These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025. 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 $998.36 to $1,002.92. 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 · balance_after: Ending balance includes 30 shares acquired on February 17, 2026 through the Company's qualified ESPP program. Read SEC document |
| February 06, 2026 Filed Feb 10, 2026 23:58 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 22,875 | $1,171.16 | $26,790,369.64 |
DisclosureSEC source: 0001214659-26-001450 · marketforms-72093.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 200,626 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 00:29 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GrantCommon Stock | 57,170 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-26-001254 · marketforms-72010.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 223,501 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 |
| December 24, 2025 Filed Dec 30, 2025 23:08 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 1,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-25-018632 · marketforms-71707.xml · nonDerivative · entry 2 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Indirect · C&T Discovery Foundation Disclosed balance after: 1,000 F2 · shares: The reported transaction involved a transfer of securities by gift from the reporting person's direct holdings to a 501(c)(3) foundation. The reporting person is the president of the foundation and maintains management and investment control over the shares. No funds were exchanged and no sale of shares occurred in the transfer of the shares. Read SEC document |
| December 24, 2025 Filed Dec 30, 2025 23:08 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | GiftCommon Stock | 1,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001214659-25-018632 · marketforms-71707.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 166,331 F1 · shares: The reported transaction involved a transfer of securities by gift from the reporting person's direct holdings to a 501(c)(3) foundation. No funds were exchanged and no sale of shares occurred in the transfer of the shares. Read SEC document |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 680 | $930.48 | $632,726.40 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 9 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 167,331 F9 · 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 $930.01 to $930.98. 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 |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 2,238 | $929.29 | $2,079,751.02 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 8 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 168,011 F8 · 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 $929.00 to $929.72. 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 |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 984 | $928.60 | $913,742.40 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 7 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 170,249 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 $928.40 to $928.98. 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 |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,845 | $927.41 | $1,711,071.45 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 6 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 171,233 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 $927.01 to $927.86. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 10,360 | $926.02 | $9,593,567.20 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 5 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 173,078 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 $926.00 to $926.63. 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. Read SEC document |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,126 | $925.55 | $1,042,169.30 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 4 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 183,438 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 $925.18 to $925.82. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,327 | $924.32 | $1,226,572.64 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 3 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 184,564 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 $924.00 to $924.83. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 1,200 | $923.54 | $1,108,248.00 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 2 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 185,891 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 $923.11 to $923.98. 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 |
| November 26, 2025 Filed Nov 28, 2025 15:19 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 240 | $922.78 | $221,467.20 |
DisclosureSEC source: 0001214659-25-017305 · marketforms-71373.xml · nonDerivative · entry 1 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 187,091 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 $922.42 to $922.94. 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 |
| November 25, 2025 Filed Nov 28, 2025 15:15 UTC | MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 | SaleCommon Stock | 240 | $912.30 | $218,952.00 |
DisclosureSEC source: 0001214659-25-017303 · marketforms-71371.xml · nonDerivative · entry 19 Tseng Saria · CIK 0001312593 · EVP & General Counsel 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 187,331 F19 · 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 $912.12 to $912.48. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.