MPWR NASDAQ
Monolithic Power Systems, Inc.
1W: -3.3%
1M: +2.6%
3M: +29.7%
YTD: +66.7%
1Y: +123.8%
3Y: +295.4%
5Y: +409.7%
$1,589.81
+28.56 (+1.83%)
After Hours: $1565.00 (-24.81, -1.56%)
Weekly Expected Move ±7.4%
$1321
$1435
$1550
$1665
$1779
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🏦 Institutional Activity
Latest: Q1 20261,232
Institutions Holding
+58 vs prior
56.5%
Ownership
+5.56%
164
New
354
Increased
563
Reduced
190
Closed
👔 Insider Trades
25 records| Date | Name | Title | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 130 | $1,521.43 | $198K | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 5,819 | $1,467.62 | $8.5M | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 352 | $1,518.15 | $534K | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 551 | $1,513.11 | $834K | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 3,769 | $1,507.70 | $5.7M | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 2,929 | $1,503.05 | $4.4M | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 862 | $1,491.48 | $1.3M | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 6,688 | $1,486.76 | $9.9M | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 5,737 | $1,482.51 | $8.5M | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 4,082 | $1,476.96 | $6.0M | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 5,049 | $1,472.84 | $7.4M | Filing |
| 2026-05-18 | DEAN ROBERT W II | officer: interim cfo | S-Sale | 4 | $1,563.28 | $6K | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 3,424 | $1,462.61 | $5.0M | Filing |
| 2026-05-18 | Hsing Michael | officer: ceo | S-Sale | 608 | $1,499.46 | $912K | Filing |
| 2026-05-15 | Sciammas Maurice | officer: evp, ww sales & marketing | S-Sale | 50 | $1,585.51 | $79K | Filing |
| 2026-05-15 | Sciammas Maurice | officer: evp, ww sales & marketing | S-Sale | 447 | $1,582.21 | $707K | Filing |
| 2026-05-15 | Sciammas Maurice | officer: evp, ww sales & marketing | S-Sale | 703 | $1,577.75 | $1.1M | Filing |
| 2026-05-15 | Sciammas Maurice | officer: evp, ww sales & marketing | S-Sale | 2,020 | $1,567.15 | $3.2M | Filing |
| 2026-05-15 | Sciammas Maurice | officer: evp, ww sales & marketing | S-Sale | 2,010 | $1,562.01 | $3.1M | Filing |
| 2026-05-15 | Sciammas Maurice | officer: evp, ww sales & marketing | S-Sale | 1,717 | $1,557.48 | $2.7M | Filing |
| 2026-05-15 | Sciammas Maurice | officer: evp, ww sales & marketing | S-Sale | 3,741 | $1,550.36 | $5.8M | Filing |
| 2026-05-15 | Sciammas Maurice | officer: evp, ww sales & marketing | S-Sale | 1,312 | $1,571.49 | $2.1M | Filing |
| 2026-05-13 | Sciammas Maurice | officer: evp, ww sales & marketing | G-Gift | 1,563 | $— | $0 | Filing |
| 2026-05-06 | Elmiger Eugen J | director | S-Sale | 814 | $1,566.36 | $1.3M | Filing |
| 2026-05-06 | Elmiger Eugen J | director | S-Sale | 320 | $1,559.88 | $499K | Filing |
🏛️ Congressional Trades
25 records| Date | Politician | Chamber | Type | Amount | Filing |
|---|---|---|---|---|---|
| 2026-02-04 | Markwayne Mullin | Senate | Buy | $15,001 - $50,000 | Filing |
| 2026-01-05 | Markwayne Mullin | Senate | Buy | $15,001 - $50,000 | Filing |
| 2026-01-05 | Markwayne Mullin | Senate | Buy | $15,001 - $50,000 | Filing |
| 2026-01-05 | Markwayne Mullin | Senate | Buy | $15,001 - $50,000 | Filing |
| 2026-01-05 | Markwayne Mullin | Senate | Buy | $15,001 - $50,000 | Filing |
| 2025-10-20 | Michael Patrick Guest | House | Buy | $1,001 - $15,000 | Filing |
| 2025-04-08 | Rob Bresnahan | House | Buy | $1,001 - $15,000 | Filing |
| 2024-05-03 | Tommy Tuberville | Senate | Sell | $1,001 - $15,000 | Filing |
| 2024-05-03 | Tommy Tuberville | Senate | Sell | $1,001 - $15,000 | Filing |
| 2024-03-25 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2024-03-20 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2024-02-13 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2024-02-13 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2024-01-10 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2023-10-26 | Ro Khanna | House | Sell | $15,001 - $50,000 | Filing |
| 2023-10-17 | Tommy Tuberville | Senate | Buy | $1,001 - $15,000 | Filing |
| 2023-10-17 | Tommy Tuberville | Senate | Buy | $1,001 - $15,000 | Filing |
| 2023-06-15 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2023-04-03 | Tommy Tuberville | Senate | Sell | $1,001 - $15,000 | Filing |
| 2023-04-03 | Tommy Tuberville | Senate | Sell | $1,001 - $15,000 | Filing |
| 2023-04-03 | Tommy Tuberville | Senate | Sell | $1,001 - $15,000 | Filing |
| 2023-04-03 | Tommy Tuberville | Senate | Sell | $1,001 - $15,000 | Filing |
| 2023-01-09 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2022-11-03 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2022-11-02 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
🏦 Top Institutional Holders
20 holders| Holder | Shares | Value | Date Reported | Filing | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,072,467 | $6.6B | +110,076 | 2026-03-31 | Filing |
| FMR LLC | 4,400,831 | $4.8B | +423,823 | 2026-03-31 | Filing |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,083,449 | $3.4B | +3,083,449 | 2026-03-31 | Filing |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2,516,492 | $2.8B | +2,516,492 | 2026-03-31 | Filing |
| STATE STREET CORP | 2,188,454 | $2.4B | +8,035 | 2026-03-31 | Filing |
| Invesco Ltd. | 1,485,093 | $1.6B | +50,404 | 2026-03-31 | Filing |
| GEODE CAPITAL MANAGEMENT, LLC | 1,432,066 | $1.6B | +49,786 | 2026-03-31 | Filing |
| FRANKLIN RESOURCES INC | 928,671 | $1.0B | -120,738 | 2026-03-31 | Filing |
| FIRST TRUST ADVISORS LP | 591,353 | $647M | -110,101 | 2026-03-31 | Filing |
| GOLDMAN SACHS GROUP INC | 568,064 | $621M | -25,678 | 2026-03-31 | Filing |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA | 567,769 | $621M | -2,950 | 2026-03-31 | Filing |
| BARCLAYS PLC | 555,808 | $608M | -48,994 | 2026-03-31 | Filing |
| UBS Group AG | 540,413 | $591M | +101,428 | 2026-03-31 | Filing |
| JPMORGAN CHASE & CO | 554,919 | $556M | +42,646 | 2026-03-31 | Filing |
| NORTHERN TRUST CORP | 489,120 | $535M | +5,420 | 2026-03-31 | Filing |
| ROYAL BANK OF CANADA | 473,368 | $518M | +296,788 | 2026-03-31 | Filing |
| VOYA INVESTMENT MANAGEMENT LLC | 393,559 | $430M | +53,827 | 2026-03-31 | Filing |
| BANK OF AMERICA CORP /DE | 382,162 | $418M | -167,413 | 2026-03-31 | Filing |
| Legal & General Group Plc | 380,089 | $416M | +23,450 | 2026-03-31 | Filing |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 376,374 | $412M | +10,990 | 2026-03-31 | Filing |