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 |
|---|---|---|---|---|---|---|
| 2021-03-31 | Sciammas Maurice Sr. V.P.of Sales and Marketing | Gift | +8,500 | 17,500 | ||
| 2021-03-30 | Hsing Michael CEO | Sale | −600 | $334.96 | $201K | 1,091,392 |
| 2021-03-30 | Hsing Michael CEO | Sale | −3,200 | $336.03 | $1.1M | 1,088,192 |
| 2021-03-30 | Hsing Michael CEO | Sale | −5,828 | $337.12 | $2.0M | 1,082,364 |
| 2021-03-30 | Hsing Michael CEO | Sale | −19,713 | $338.11 | $6.7M | 1,062,651 |
| 2021-03-30 | Hsing Michael CEO | Sale | −17,593 | $338.92 | $6.0M | 1,045,058 |
| 2021-03-30 | Hsing Michael CEO | Sale | −6,208 | $339.83 | $2.1M | 1,038,850 |
| 2021-03-30 | Hsing Michael CEO | Sale | −1,200 | $340.89 | $409K | 1,037,650 |
| 2021-03-30 | Hsing Michael CEO | Sale | −3,310 | $342.11 | $1.1M | 1,034,340 |
| 2021-03-30 | Hsing Michael CEO | Sale | −3,039 | $343.22 | $1.0M | 1,031,301 |
| 2021-03-30 | Hsing Michael CEO | Sale | −2,692 | $344.14 | $926K | 1,028,609 |
| 2021-03-30 | Hsing Michael CEO | Sale | −200 | $344.74 | $69K | 1,028,409 |
| 2021-03-22 | BLEGEN THEODORE CFO | Sale | −20 | $343.56 | $7K | 158,879 |
| 2021-03-22 | BLEGEN THEODORE CFO | Sale | −120 | $345.43 | $41K | 158,759 |
| 2021-03-22 | BLEGEN THEODORE CFO | Sale | −140 | $346.71 | $49K | 158,619 |
| 2021-03-22 | BLEGEN THEODORE CFO | Sale | −145 | $347.92 | $50K | 158,474 |
| 2021-03-22 | BLEGEN THEODORE CFO | Sale | −180 | $348.91 | $63K | 158,294 |
| 2021-03-22 | BLEGEN THEODORE CFO | Sale | −282 | $350.12 | $99K | 158,012 |
| 2021-03-22 | BLEGEN THEODORE CFO | Sale | −444 | $350.98 | $156K | 157,568 |
| 2021-03-22 | BLEGEN THEODORE CFO | Sale | −100 | $351.91 | $35K | 157,468 |
Page 66 of 72 · 1,433 trades