MPWR
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
§ 04 · FUNDAMENTALS · THE BOOKS
| P/E | 88.4 | P/B | 12.30 |
| EPS (TTM) | 12.86 | Dividend | 0.76% |
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 6.1M | 0.1% | +2% |
| Fidelity Management | 4.4M | 0.3% | +11% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.1M | n/a | n/a |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.5M | n/a | n/a |
| State Street | 2.2M | 0.1% | +0% |
| Geode Capital Management | 1.4M | 0.1% | +4% |
Top institutional owners for MPWR as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
| Date | Insider | Action | Shares | $ value |
|---|---|---|---|---|
| AUG 26 | DEAN ROBERT W II | SELL | 32 | −$42K |
| AUG 25 | CHANG KUO WEI HERBERT | SELL | 50 | −$64K |
| AUG 13 | CHANG KUO WEI HERBERT | SELL | 50 | −$71K |
| AUG 06 | DEAN ROBERT W II | SELL | 105 | −$141K |
| AUG 05 | Sciammas Maurice | SELL | 30 | −$40K |
| JUL 17 | Sciammas Maurice | SELL | 110 | −$155K |
0 insider buys, 20 sells in the last 180 days. Scheduled 10b5-1 sales are pre-programmed and neutral; discretionary clusters are the tape worth reading. Cross-reference with the signal stack above for context.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention MPWR yet.