Sciammas Maurice — SEC Form 4 filings
SEC reporting owner CIK 1360833. 44 Form 4 filings on record with FilingPulse; latest filed 2026-08-06.
Transaction summary — filings shown
Covers all 44 filings on record, filed 2024-01-08 to 2026-08-06. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 124 legs across 29 filings — 188,771 shares, $170,535,541 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 32.
- Largest priced transaction: sale of 22,875 shares @ $1,171.16 ($26,790,370) in MONOLITHIC POWER SYSTEMS, INC., filed 2026-02-10.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| MONOLITHIC POWER SYSTEMS, INC. (MPWR) | EVP, WW Sales & Marketing | 44 | — | 124 legs · 188,771 sh · $170,535,541 | 32 |
Form 4 filings — Sciammas Maurice
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-06 | 4 | MONOLITHIC POWER SYSTEMS, INC. (MPWR) | Gift (G): 25,000 @ $0 · Gift (G): 25,000 @ $0 | EDGAR |
| 2026-08-05 | 4 | MONOLITHIC POWER SYSTEMS, INC. (MPWR) | Sale (S): 30 @ $1,343.94 | EDGAR |
| 2026-07-17 | 4 | MONOLITHIC POWER SYSTEMS, INC. (MPWR) | Sale (S): 527 @ $1,314.03 · Sale (S): 274 @ $1,318.42 · Sale (S): 409 @ $1,323.93 · Sale (S): 464 @ $1,329.30 · Sale (S): 776 @ $1,334.59 · Sale (S): 1,460 @ $1,339.59 · +12 more | EDGAR |
| 2026-07-06 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 30 @ $1,351.61 | EDGAR |
| 2026-06-03 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 30 @ $1,533.95 | EDGAR |
| 2026-06-02 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 12,472 @ $0 | EDGAR |
| 2026-05-19 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 3,741 @ $1,550.36 · Sale (S): 1,717 @ $1,557.48 · Sale (S): 2,010 @ $1,562.01 · Sale (S): 2,020 @ $1,567.15 · Sale (S): 1,312 @ $1,571.49 · Sale (S): 703 @ $1,577.75 · +2 more | EDGAR |
| 2026-05-15 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 1,563 @ $0 · Gift (G): 1,563 @ $0 | EDGAR |
| 2026-05-06 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 30 @ $1,588.73 | EDGAR |
| 2026-05-06 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 380 @ $1,583.81 | EDGAR |
| 2026-04-03 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 30 @ $1,116.44 | EDGAR |
| 2026-03-24 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 30 @ $1,095.07 | EDGAR |
| 2026-02-12 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 200 @ $1,179.97 | EDGAR |
| 2026-02-10 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 22,875 @ $1,171.16 | EDGAR |
| 2026-02-05 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Grant/award (A): 57,170 @ $0 | EDGAR |
| 2025-11-25 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 3,976 @ $895.23 | EDGAR |
| 2025-11-20 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 240 @ $862.58 · Sale (S): 160 @ $863.86 · Sale (S): 40 @ $865.89 · Sale (S): 339 @ $866.19 · Sale (S): 699 @ $867.57 · Sale (S): 723 @ $868.42 · +6 more | EDGAR |
| 2025-11-20 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 431 @ $875.26 · Sale (S): 940 @ $876.62 · Sale (S): 1,976 @ $877.45 · Sale (S): 1,854 @ $878.55 · Sale (S): 1,966 @ $879.54 · Sale (S): 3,776 @ $880.58 · +6 more | EDGAR |
| 2025-11-14 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 4,530 @ $0 · Gift (G): 4,530 @ $0 | EDGAR |
| 2025-11-06 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 200 @ $986.81 | EDGAR |
| 2025-10-31 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Tax withholding (F): 54,543 @ $1,096.63 | EDGAR |
| 2025-10-28 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Grant/award (A): 135,520 @ $0 | EDGAR |
| 2025-08-21 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 1,000 @ $0 · Gift (G): 1,499 @ $0 · Gift (G): 1,499 @ $0 | EDGAR |
| 2025-08-08 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 4,836 @ $0 · Gift (G): 2,000 @ $0 · Gift (G): 1,418 @ $0 · Gift (G): 1,418 @ $0 | EDGAR |
| 2025-05-30 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 1,499 @ $0 · Gift (G): 1,499 @ $0 | EDGAR |
| 2025-05-12 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 12,000 @ $701 | EDGAR |
| 2025-05-09 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 1,878 @ $0 · Gift (G): 1,878 @ $0 | EDGAR |
| 2025-02-20 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 1,102 @ $0 · Gift (G): 1,102 @ $0 | EDGAR |
| 2025-02-13 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 2,525 @ $0 · Gift (G): 2,525 @ $0 · Gift (G): 5,050 @ $0 | EDGAR |
| 2025-02-12 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 662 @ $717.10 | EDGAR |
| 2025-02-11 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 3,941 @ $701.03 · Sale (S): 1,600 @ $702.46 · Sale (S): 1,259 @ $703.88 · Sale (S): 200 @ $704.91 | EDGAR |
| 2024-11-13 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 866 @ $765.14 | EDGAR |
| 2024-10-08 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 226 @ $922.72 · Sale (S): 800 @ $925.91 · Sale (S): 75 @ $926.57 · Sale (S): 1,695 @ $927.40 · Sale (S): 1,576 @ $928.39 · Sale (S): 1,774 @ $929.55 · +5 more | EDGAR |
| 2024-08-12 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 859 @ $778.39 | EDGAR |
| 2024-07-24 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 3,205 @ $831.58 | EDGAR |
| 2024-07-10 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 20 @ $839.89 · Sale (S): 500 @ $840.45 · Sale (S): 1,242 @ $841.56 · Sale (S): 1,772 @ $842.59 · Sale (S): 2,432 @ $843.43 · Sale (S): 1,623 @ $844.42 · +4 more | EDGAR |
| 2024-05-15 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 1,892 @ $0 · Gift (G): 1,590 @ $0 · Gift (G): 1,590 @ $0 · Gift (G): 5,072 @ $0 | EDGAR |
| 2024-05-09 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 869 @ $690 | EDGAR |
| 2024-04-09 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 345 @ $668.76 · Sale (S): 200 @ $673.28 · Sale (S): 100 @ $674.54 · Sale (S): 49 @ $675.61 · Sale (S): 251 @ $676.57 · Sale (S): 300 @ $678.50 · +11 more | EDGAR |
| 2024-04-03 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Gift (G): 1,172 @ $0 · Gift (G): 1,172 @ $0 | EDGAR |
| 2024-02-09 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 859 @ $680 | EDGAR |
| 2024-02-07 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 982 @ $641 | EDGAR |
| 2024-01-12 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 1,999 @ $577.66 · Sale (S): 1,562 @ $578.47 · Sale (S): 1,430 @ $579.73 · Sale (S): 300 @ $581.17 · Sale (S): 1,300 @ $582.75 · Sale (S): 1,263 @ $583.55 · +6 more | EDGAR |
| 2024-01-08 | 4 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Sale (S): 27,659 @ $583.14 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-04 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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