Hsing Michael's Form 4 filing
Monolithic Power Systems, Inc. (MPWR) · filed Feb 17, 2026
- Accession no.
- 0001214659-26-002084
- Filed
- Feb 17, 2026
- Trade date
- Feb 12, 2026
- Filing delay
- 5 days
- Rule 10b5-1 plan
- Checked
This filing lists 12 non-derivative transactions. Open-market sales total $38.7M. It was filed 5 days 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 |
|---|---|
| Hsing MichaelCIK 0001308676 | Director, Officer (CEO) |
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 |
|---|---|---|---|---|---|---|---|---|
| Feb 12, 2026 | Common Stock | SSaleDisposed | −12,731 | $1,155.71F2 | −$14,713,344.01 | 908,503 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −4,992 | $1,159.84F3 | −$5,789,921.28 | 903,511 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −4,001 | $1,164.92F4 | −$4,660,844.92 | 899,510 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −2,076 | $1,168.80F5 | −$2,426,428.8 | 897,434 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −200 | $1,173.39F6 | −$234,678 | 897,234 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −480 | $1,180.79F7 | −$566,779.2 | 896,754 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −160 | $1,188.23F8 | −$190,116.8 | 896,594 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −600 | $1,194.34F9 | −$716,604 | 895,994 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −1,440 | $1,200.81F10 | −$1,729,166.4 | 894,554 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −3,640 | $1,205.82F11 | −$4,389,184.8 | 890,914 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −1,240 | $1,210.11F12 | −$1,500,536.4 | 889,674 | Direct | |
| Feb 12, 2026 | Common Stock | SSaleDisposed | −1,440 | $1,217.12F13 | −$1,752,652.8 | 888,234 | 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 $1,152.31 to $1,157.31. 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 $1,157.38 to $1,162.38. 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.
- F4
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 $1,162.42 to $1,167.20 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.
- F5
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 $1,167.43 to $1,172.17. 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.
- F6
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 $1,172.82 to $1,175.07. 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.
- F7
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 $1,179.43 to $1,182.24. 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.
- F8
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 $1,185.94 to $1,190.48. 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.
- F9
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 $1,191.26 to $1,195.35. 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.
- F10
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 $1,197.57 to $1,202.33. 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.
- F11
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 $1,202.70 to $1,207.63. 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.
- F12
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 $1,207.93 to $1,212.36. 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.
- F13
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 $1,214.09 to $1,218.82. 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.