Based on data from the past 90 days ending February 07, 2026, Monolithic Power Systems's three largest insider shareholders are Ceo Michael Hsing (1.04Mn shares), Evp And Global Operations Deming Xiao (263.14K shares), Evp And Ww Sales & Marketing Maurice Sciammas (250.96K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Michael Hsing | Ceo | 1,043,157 | 05 Feb, 2026 |
| Deming Xiao | Evp And Global Operations | 263,143 | 05 Feb, 2026 |
| Maurice Sciammas | Evp And Ww Sales & Marketing | 250,960 | 05 Feb, 2026 |
| Saria Tseng | Evp & General Counsel | 224,501 | 05 Feb, 2026 |
| Theodore Blegen | Evp And Cfo | 109,409 | 05 Feb, 2026 |
| Victor K Lee | 28,156 | 05 Feb, 2026 | |
| Eugen J Elmiger | 17,402 | 05 Feb, 2026 | |
| Jeff Zhou | 5,800 | 05 Feb, 2026 | |
| Eileen Wynne | 1,342 | 05 Feb, 2026 | |
| Carintia Martinez | 1,067 | 05 Feb, 2026 | |
| Kuo Wei Herbert Chang | 615 | 05 Feb, 2026 | |
| James C Moyer | 348 | 08 Feb, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 03 Feb, 2026 | Kuo Wei Herbert Chang | Common Stock | A | 189 | $0.00 | 615 | D | A |
| 03 Feb, 2026 | Victor K Lee | Common Stock | A | 189 | $0.00 | 28,156 | D | A |
| 03 Feb, 2026 | Deming Xiao | Common Stock | A | 57,170 | $0.00 | 258,807 | D | A |
| 03 Feb, 2026 | Michael Hsing | Common Stock | A | 136,825 | $0.00 | 1,043,157 | D | A |
| 03 Feb, 2026 | Saria Tseng | Common Stock | A | 57,170 | $0.00 | 223,501 | D | A |
| 03 Feb, 2026 | Maurice Sciammas | Common Stock | A | 57,170 | $0.00 | 201,500 | D | A |
| 03 Feb, 2026 | Theodore Blegen | Common Stock | A | 38,745 | $0.00 | 104,078 | D | A |
| 03 Feb, 2026 | Jeff Zhou | Common Stock | A | 189 | $0.00 | 5,800 | D | A |
| 03 Feb, 2026 | Eugen J Elmiger | Common Stock | A | 189 | $0.00 | 17,402 | D | A |
| 03 Feb, 2026 | Eileen Wynne | Common Stock | A | 189 | $0.00 | 1,342 | D | A |
| 03 Feb, 2026 | Carintia Martinez | Common Stock | A | 189 | $0.00 | 1,067 | D | A |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 220 | $1,110.58 | 68,112 | D | S |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 198 | $1,131.70 | 66,674 | D | S |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 80 | $1,127.39 | 67,672 | D | S |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 241 | $1,134.41 | 65,732 | D | S |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 120 | $1,136.35 | 65,492 | D | S |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 80 | $1,139.49 | 65,333 | D | S |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 322 | $1,132.67 | 66,352 | D | S |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 120 | $1,135.49 | 65,612 | D | S |
| 02 Feb, 2026 | Theodore Blegen | Common Stock | D | 240 | $1,128.43 | 67,432 | D | S |