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BLEGEN THEODORE

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67027
SEC CIK
0001415033

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MONOLITHIC POWER SYSTEMS, INC.MPWR · Entity 877EVP and CFOFebruary 06, 2026February 10, 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 February 06, 2026 · Filed February 10, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect82,353 Reported balance After 2026-02-06 transaction · row 1
1 source row

Row 1 · 2026-02-06 · Sale · Disposed 21,725 · Balance 82,353

F1: The reported sales were to cover taxes upon the release of restricted stock units, as required by the Company's equity incentive plan.

Common StockSEC Table I · non-derivativeIndirectIrrevocable Trust FBO Sarah N. Blegen5,331 Reported balance Holding disclosure · report date 2026-02-06 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 5,331

Common StockSEC Table I · non-derivativeIndirectIrrevocable Trust FBO Theodore F. Blegen5,331 Reported balance Holding disclosure · report date 2026-02-06 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 5,331

Filing footnotes · ownership attribution and instrument terms

F1: The reported sales were to cover taxes upon the release of restricted stock units, as required by the Company's equity incentive plan.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
December 18, 2023 Filed Dec 19, 2023 17:13 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 235 $630.55 $148,179.25
Disclosure

SEC source: 0001214659-23-016563 · marketforms-63887.xml · nonDerivative · entry 4

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,802

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 $630.10 to $630.96. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
December 18, 2023 Filed Dec 19, 2023 17:13 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 313 $629.60 $197,064.80
Disclosure

SEC source: 0001214659-23-016563 · marketforms-63887.xml · nonDerivative · entry 3

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,037

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 $629.13 to $629.85. 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
December 18, 2023 Filed Dec 19, 2023 17:13 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 451 $628.61 $283,503.11
Disclosure

SEC source: 0001214659-23-016563 · marketforms-63887.xml · nonDerivative · entry 2

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,350

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 $628.34 to $628.83. 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
December 18, 2023 Filed Dec 19, 2023 17:13 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 80 $627.99 $50,239.20
Disclosure

SEC source: 0001214659-23-016563 · marketforms-63887.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,801

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 $627.98 to $627.99. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
November 08, 2023 Filed Nov 9, 2023 23:05 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 712 $490.39 $349,157.68
Disclosure

SEC source: 0001214659-23-014769 · marketforms-63495.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 119,881

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 22:02 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 847 $492.92 $417,503.24
Disclosure

SEC source: 0001214659-23-014665 · marketforms-63476.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,593

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 905 $458.30 $414,761.50
Disclosure

SEC source: 0001214659-23-013131 · marketforms-62755.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,440

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 08, 2023 Filed Aug 10, 2023 22:02 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 724 $530.28 $383,922.72
Disclosure

SEC source: 0001214659-23-011013 · marketforms-62209.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 122,345

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 852 $526.52 $448,595.04
Disclosure

SEC source: 0001214659-23-010822 · marketforms-62192.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,069

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 22:35 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 7,575 $534.23 $4,046,792.25
Disclosure

SEC source: 0001214659-23-009963 · marketforms-62127.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,921

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 20:28 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 905 $537.79 $486,699.95
Disclosure

SEC source: 0001214659-23-009264 · marketforms-62031.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,496

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 711 $409.78 $291,353.58
Disclosure

SEC source: 0001214659-23-006754 · marketforms-61413.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,401

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 20:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 854 $459.60 $392,498.40
Disclosure

SEC source: 0001214659-23-006577 · marketforms-61400.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,112

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 20:42 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 2,870 $463.55 $1,330,388.50
Disclosure

SEC source: 0001214659-23-006519 · marketforms-61198.xml · nonDerivative · entry 2

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,966

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
May 02, 2023 Filed May 4, 2023 20:42 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantCommon Stock 5,714 $0.00 $0.00
Disclosure

SEC source: 0001214659-23-006519 · marketforms-61198.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136,836

F1 · shares: On February 2, 2021, the reporting person was granted a target number of 5,714 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 5,714 units being credited with the vesting terms described above.

Read SEC document
April 03, 2023 Filed Apr 6, 2023 20:48 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 920 $487.99 $448,950.80
Disclosure

SEC source: 0001214659-23-005048 · marketforms-61129.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,122

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 16, 2023 Filed Feb 21, 2023 21:23 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,901 $521.44 $991,257.44
Disclosure

SEC source: 0001214659-23-002798 · marketforms-59548.xml · nonDerivative · entry 2

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,042

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 $521.43 to $521.64. 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.

F3 · balance_after: Ending balance includes 47 shares acquired on February 15, 2023 through the Company's qualified ESPP program.

Read SEC document
February 16, 2023 Filed Feb 21, 2023 21:23 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 3,099 $520.94 $1,614,393.06
Disclosure

SEC source: 0001214659-23-002798 · marketforms-59548.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,896

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 $520.48 to $521.36. 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
February 13, 2023 Filed Feb 14, 2023 00:37 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,373 $492.31 $675,941.63
Disclosure

SEC source: 0001214659-23-002179 · marketforms-59462.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,995

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, 2023 Filed Feb 10, 2023 21:13 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 5,684 $462.41 $2,628,338.44
Disclosure

SEC source: 0001214659-23-001955 · marketforms-59434.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 138,368

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 23:54 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 GrantCommon Stock 22,857 $0.00 $0.00
Disclosure

SEC source: 0001214659-23-001829 · marketforms-59341.xml · nonDerivative · entry 2

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,052

F2 · shares: On February 2, 2021, the reporting person was granted a target of 7,619 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 15,238 additional shares being earned by the reporting person. Of the 22,857 restricted stock units that were awarded, 11,429 will vest immediately and 11,428 will vest quarterly in the next two years.

Read SEC document
February 06, 2023 Filed Feb 8, 2023 23:54 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 608 $446.87 $271,696.96
Disclosure

SEC source: 0001214659-23-001829 · marketforms-59341.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,195

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 03, 2023 Filed Jan 5, 2023 21:53 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,884 $344.96 $649,904.64
Disclosure

SEC source: 0001214659-23-000283 · marketforms-58063.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,803

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 16, 2022 23:59 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 191 $406.27 $77,597.57
Disclosure

SEC source: 0001214659-22-013912 · marketforms-57552.xml · nonDerivative · entry 2

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,687

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, 2022 Filed Nov 16, 2022 23:59 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,196 $390.33 $466,834.68
Disclosure

SEC source: 0001214659-22-013912 · marketforms-57552.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,878

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 847 $343.98 $291,351.06
Disclosure

SEC source: 0001214659-22-013243 · marketforms-57488.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,074

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.

Read SEC document
October 03, 2022 Filed Oct 4, 2022 20:29 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 905 $372.60 $337,203.00
Disclosure

SEC source: 0001214659-22-011980 · marketforms-57276.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,921

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 12, 2022 Filed Aug 12, 2022 22:59 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,369 $525.95 $720,025.55
Disclosure

SEC source: 0001214659-22-010039 · marketforms-56884.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,826

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 848 $522.38 $442,978.24
Disclosure

SEC source: 0001214659-22-009748 · marketforms-56812.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,195

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 21:10 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 950 $361.58 $343,501.00
Disclosure

SEC source: 0001214659-22-008668 · marketforms-56607.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,043

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 $361.59. 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 20:33 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,395 $388.10 $541,399.50
Disclosure

SEC source: 0001214659-22-007052 · marketforms-56155.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,993

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, 2022 Filed May 5, 2022 21:02 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 850 $453.16 $385,182.01
Disclosure

SEC source: 0001214659-22-006363 · marketforms-55971.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,388

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 20:27 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 930 $467.22 $434,514.60
Disclosure

SEC source: 0001214659-22-004861 · marketforms-55928.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,238

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 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 20 $463.65 $9,273.00
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 15

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,168

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

Read SEC document
February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 60 $461.14 $27,668.40
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 14

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,188

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

F16 · 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 $460.79 to $461.65. 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
February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 60 $459.84 $27,590.40
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 13

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,248

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

F15 · 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 $459.47 to $460.32. 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 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 40 $458.19 $18,327.60
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 12

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,308

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

F14 · 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 $458.12 to $458.25. 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
February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 60 $457.48 $27,448.80
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 11

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,348

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

F13 · 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 $457.03 to $457.82. 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
February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 40 $456.06 $18,242.40
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 10

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,408

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

F12 · 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 $455.96 to $456.15. 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.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 122 $455.27 $55,542.94
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 9

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,448

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

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 $454.83 to $455.74. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 80 $453.91 $36,312.80
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 8

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,570

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

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 $453.39 to $454.38. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 80 $452.60 $36,208.00
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 7

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,650

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

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 $452.34 to $453.04. 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.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 95 $451.58 $42,900.10
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 6

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,730

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

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 $451.31 to $452.13. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 137 $450.48 $61,715.76
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 5

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,825

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

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 $450.26 to $450.74. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 544 $449.84 $244,712.96
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 4

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,962

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

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 $449.18 to $450.17. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 81 $448.33 $36,314.73
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 3

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,506

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

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 $447.96 to $448.70. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 60 $447.07 $26,824.20
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 2

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,587

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 plan.

F4 · price: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $446.85 to $447.47. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

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February 22, 2022 Filed Feb 24, 2022 21:40 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 60 $445.22 $26,713.20
Disclosure

SEC source: 0001214659-22-003138 · marketforms-55529.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,647

F1 · shares: Shares sold pursuant to the reporting person's 10b5-1 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 $444.82 to $445.73. 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 55 shares acquired on February 15, 2022 through the Company's qualified ESPP program.

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February 14, 2022 Filed Feb 16, 2022 23:45 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon Stock 1,387 $429.60 $595,855.20
Disclosure

SEC source: 0001214659-22-002840 · marketforms-55165.xml · nonDerivative · entry 1

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,652

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.

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February 08, 2022 Filed Feb 9, 2022 23:22 UTC MONOLITHIC POWER SYSTEMS, INC. MPWR · Entity 877 SaleCommon stock 1,117 $401.12 $448,051.04
Disclosure

SEC source: 0001214659-22-002125 · marketforms-55039.xml · nonDerivative · entry 2

BLEGEN THEODORE · CIK 0001415033 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,039

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.

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