Supply breakdown
Shares as of Jul 29, 2026| Category | Shares | % | Value | Status |
|---|---|---|---|---|
| Circulating | 49.14M | 100.0% | $67.93B | Estimated |
| Free float | - | - | - | Unavailable |
| Insider-held, unrestricted | - | - | - | Unavailable |
| Locked team funds | 0 | 0.0% | $0 | Unavailable |
| Other restricted | 0 | 0.0% | $0 | Unavailable |
| Total outstanding | 49.14M | 100.0% | $67.93B | Verified |
| Ownership views (overlap the categories above, never added) | ||||
| Institutional holdings (13F) | 47.58M | 96.8% | $65.78B | Estimated |
| Insider-held, all (Forms 3, 4, 5) | - | - | - | Unavailable |
Institutional and insider holdings can include both tradable and locked shares, so they are shown for reference and never added to the total. Check: circulating + locked team + other restricted = total outstanding reconciles.
Valuation
- Traditional$67.93B
- Fully diluted$68.10B
- Circulating$67.93B
- Free float-
- Locked team value$0
- Other restricted value$0
Locked and restricted shares
Not reviewed yet.
Institutional holders
| Holder | Shares | % of total |
|---|---|---|
| BlackRock, Inc. | 5.59M | 11.37% |
| FMR LLC | 5.18M | 10.54% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.13M | 6.36% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.50M | 5.10% |
| Invesco Ltd. | 2.34M | 4.77% |
| STATE STREET CORP | 2.28M | 4.64% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.20M | 2.43% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 976.8K | 1.99% |
| FRANKLIN RESOURCES INC | 812.0K | 1.65% |
| GOLDMAN SACHS GROUP INC | 780.6K | 1.59% |
Insiders
Forms 3, 4 and 5Form 4 aggregation pending
Share classes
| Class | Listing | Shares outstanding | As of |
|---|---|---|---|
| Common stock | MPWR on Nasdaq | 49,143,000 | Jul 29, 2026 |
Notes and sources
- MONOLITHIC POWER SYSTEMS, INC. 10-Q for period ended 2026-06-30, Cover page (0001628280-26-053275)
- SEC public float (non-affiliates): $24.70B as of Jun 30, 2025, from the 10-K cover. It is a dollar value at a past date, not circulating supply.