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MPWR · Monolithic Power Systems, Inc. · Proposed Sales

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$1,340.33 -6.89 (-0.51%)
S&P 500 member Nasdaq-100 member Russell 1000 member Rebalance outlook locked
Market Cap
$67.20B
Shares
49.14M
Volume · Oct 1 136.95K Avg daily vol (3M) 784.9K

Notices of intent to sell restricted or control shares, filed with the SEC on Form 144 by insiders and affiliates. A Form 144 signals a planned sale — it does not confirm the shares were actually sold.

Filed Seller Shares
2026-09-28 MICHAEL HSING 30,000
2026-08-24 DEAN ROBERT W II 32
2026-08-17 DEAN ROBERT W II 6
2026-08-11 Kuo Wei Chang 100
2026-08-05 ROBERT DEAN 105
2026-07-15 MAURICE SCIAMMAS 15,000
2026-06-01 THEODORE BERNHARD BLEGEN 3,001
2026-05-28 SARIA TSENG 7,565
2026-05-26 JEFF ZHOU 486
2026-05-26 DEAN ROBERT W II 22
2026-05-22 SARIA TSENG 5,000
2026-05-18 MICHAEL HSING 40,000
2026-05-18 DEAN ROBERT W II 4
2026-05-15 MAURICE SCIAMMAS 12,000
2026-05-06 JEFF ZHOU 500
2026-05-06 Elmiger Eugen J 12,000
2026-05-06 EILEEN WYNNE 335
2026-05-06 DEMING XIAO 30,000
2026-05-05 JEFF ZHOU 1,014
2026-05-05 Rosalind Sciammas 400
2026-05-01 THEODORE BERNHARD BLEGEN 3,000
2026-04-08 SARIA TSENG 8,964
2026-04-06 SARIA TSENG 7,636
2026-04-01 THEODORE BERNHARD BLEGEN 3,000
2026-04-01 SARIA TSENG 1,400
2026-03-30 SARIA TSENG 25,674
2026-03-20 Sciammas Maurice 120
2026-03-02 THEODORE BERNHARD BLEGEN 3,000
2026-02-12 MICHAEL HSING 33,000
2026-02-11 MICHAEL HSING 33,000
2026-02-10 The Sciammas Trust DTD 06/08/2018 200
2026-02-10 MICHAEL HSING 34,000
2026-02-06 BLEGEN THEODORE 995
2026-02-06 Tseng Saria 1,286
2026-02-06 Hsing Michael 3,082
2026-02-06 Sciammas Maurice 1,286
2026-02-06 Xiao Deming 1,286
2026-02-04 BLEGEN THEODORE 20,730
2026-02-04 Xiao Deming 21,590
2026-02-04 Sciammas Maurice 21,590
2026-02-04 Tseng Saria 21,590
2026-02-04 Hsing Michael 51,841
2026-02-02 THEODORE BERNHARD BLEGEN 3,000
2026-01-02 THEODORE BERNHARD BLEGEN 3,000
2025-12-29 VICTOR LEE 2,000
2025-12-01 BERNIE BLEGEN 3,000
2025-11-26 SARIA TSENG 20,000
2025-11-25 SARIA TSENG 20,000
2025-11-24 MAURICE SCIAMMAS 3,976
2025-11-21 Kuo Wei Chang 200
Showing 1–50 of 223 filings
Key facts CIK 1280452 CUSIP 609839105 13F (30d) 22 filings 18 filers Visit website Investor relations