CIK 0001280452 · Large accelerated filer
MONOLITHIC POWER SYSTEMS, INC.
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- MPWR
- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 770466789
- Phone
- 561-839-3999
- Business address
- 1555 PALM BEACH LAKES BLVD., WEST PALM BEACH, FL, 33401
- Former names
- MONOLITHIC POWER SYSTEMS INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $40,463,134
- in 4 filings, $40.3M under 10b5-1 plans
Net −$40,463,134. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2024-01-12 | Sciammas Maurice Sr. V.P.of Sales and Marketing | Sale 10b5-1 | −1,263 | $583.55 | $737K | 146,705 |
| 2024-01-12 | Sciammas Maurice Sr. V.P.of Sales and Marketing | Sale 10b5-1 | −714 | $584.14 | $417K | 145,991 |
| 2024-01-12 | Sciammas Maurice Sr. V.P.of Sales and Marketing | Sale 10b5-1 | −142 | $585.30 | $83K | 145,849 |
| 2024-01-12 | Sciammas Maurice Sr. V.P.of Sales and Marketing | Sale 10b5-1 | −525 | $586.67 | $308K | 145,324 |
| 2024-01-12 | Sciammas Maurice Sr. V.P.of Sales and Marketing | Sale 10b5-1 | −200 | $587.78 | $118K | 145,124 |
| 2024-01-12 | Sciammas Maurice Sr. V.P.of Sales and Marketing | Sale 10b5-1 | −1,065 | $588.33 | $627K | 144,059 |
| 2024-01-12 | Sciammas Maurice Sr. V.P.of Sales and Marketing | Sale 10b5-1 | −500 | $589.29 | $295K | 143,559 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −500 | $584.39 | $292K | 221,436 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −700 | $586.21 | $410K | 220,736 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −1,079 | $587.84 | $634K | 219,657 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −1,757 | $588.44 | $1.0M | 217,900 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −2,387 | $589.52 | $1.4M | 215,513 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −3,718 | $590.37 | $2.2M | 211,795 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −930 | $591.34 | $550K | 210,865 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −200 | $592.38 | $118K | 210,665 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −10 | $593.00 | $6K | 210,655 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −204 | $594.13 | $121K | 210,451 |
| 2024-01-10 | Xiao Deming Pres. of MPS Asia Operations | Sale 10b5-1 | −30 | $596.19 | $18K | 210,421 |
| 2024-01-09 | Tseng Saria Executive VP & General Counsel | Sale 10b5-1 | −1,390 | $600.00 | $834K | 206,180 |
| 2024-01-05 | Hsing Michael CEO | Sale 10b5-1 | −102 | $568.36 | $58K | 937,670 |
Page 42 of 59 · 1,177 trades