Blegen Theodore's Form 4 filing
Monolithic Power Systems, Inc. (MPWR) · filed Dec 2, 2025
- Accession no.
- 0001214659-25-017534
- Filed
- Dec 2, 2025
- Trade date
- Dec 1, 2025
- Filing delay
- 1 day
- Rule 10b5-1 plan
- Checked
This filing lists 10 non-derivative transactions. Open-market sales total $2.72M. It was filed 1 day after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Blegen TheodoreCIK 0001415033 | Officer (EVP and CFO) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Dec 1, 2025 | Common Stock | SSaleDisposed | −40 | $899.73 | −$35,989.2 | 74,292 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −40 | $900.88 | −$36,035.2 | 74,252 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −80 | $901.88 | −$72,150.4 | 74,172 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −40 | $902.31 | −$36,092.4 | 74,132 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −120 | $904.38 | −$108,525.6 | 74,012 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −80 | $906.84 | −$72,547.2 | 73,932 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −80 | $907.59F2 | −$72,607.2 | 73,852 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −480 | $908.69F3 | −$436,171.2 | 73,372 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −1,984 | $909.00 | −$1,803,456 | 71,388 | Direct | |
| Dec 1, 2025 | Common Stock | SSaleDisposed | −56 | $911.59 | −$51,049.04 | 71,332 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F2
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 $907.49 to $907.68. 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.
Referenced by the price of 1 transaction in Table I.
- F3
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 $908.52 to $908.75. 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.
Referenced by the price of 1 transaction in Table I.