| Politician | Action | Description | Traded |
|---|---|---|---|
| Buy | MONOLITHIC POWER SYSTEMS, IN | Jun 18, 2026 | |
| Sell | Monolithic Power Systems, In | Jun 5, 2026 | |
| Sell | Monolithic Power Systems, In | Jun 5, 2026 | |
| Sell | MONOLITHIC POWER SYS SPONSOR | Apr 10, 2026 | |
| Buy | Monolithic Power Systems, In | Feb 4, 2026 | |
| Sell | MONOLITHIC POWER SYSTEMS INC | Jan 29, 2026 | |
| Sell | MONOLITHIC POWER SYSTEMS INC | Jan 27, 2026 | |
| Buy | Monolithic Power Systems, In | Jan 5, 2026 | |
| Buy | Monolithic Power Systems, In | Oct 20, 2025 | |
| Buy | MONOLITHIC POWER SYSTEMS, IN | Apr 23, 2025 |
This page tracks congressional stock trading activity in Monolithic Power Systems, Inc. (MPWR) in the Technology sector. Disclosed Capitol has indexed 49 disclosed congressional trades involving MPWR. Every trade is sourced from official STOCK Act financial disclosure filings — the same primary records the Senate and House are required to publish. The full trade list with politician names, transaction types, amount ranges, and disclosure dates is below, alongside cross-references to any related lobbying activity, federal contracts, and committee assignments.
As of August 2026 — Disclosed Capitol has tracked 49 disclosed congressional trades in Monolithic Power Systems, Inc. (MPWR) — 19:15 buy-heavy ratio — led by Ro Khanna (D).
| Date | Politician | Party | Action | Amount |
|---|---|---|---|---|
| Jun 18, 2026 | Ro Khanna | D | Buy | $1,001 - $15,000 |
| Jun 5, 2026 | Byron Donalds | R | Sell | $1,001 - $15,000 |
| Jun 5, 2026 | Byron Donalds | R | Sell | $1,001 - $15,000 |
| Apr 10, 2026 | Ro Khanna | D | Sell | $15,001 - $50,000 |
| Feb 4, 2026 | Markwayne Mullin | R | Buy | $15,001 - $50,000 |
| Jan 29, 2026 | Ro Khanna | D | Sale | $1,001 - $15,000 |
| Jan 27, 2026 | Ro Khanna | D | Sell | $1,001 - $15,000 |
| Jan 5, 2026 | Markwayne Mullin | R | Buy | $15,001 - $50,000 |
| Oct 20, 2025 | Michael Patrick Guest | R | Buy | $1,001 - $15,000 |
| Apr 23, 2025 | Ro Khanna | D | Purchase | $1,001 - $15,000 |
Across the 49 disclosed congressional trades in Monolithic Power Systems, Inc. (MPWR), members of Congress have reported 19 buys and 15 sells. The average 30-day alpha vs. the S&P 500 is 3.79%.
As of August 2026, corporate insiders at Monolithic Power Systems, Inc. have filed 25 SEC Form 4 transactions in MPWR over the past 12 months — including 22 sells worth $20.5M.
| Date | Insider | Action | Value |
|---|---|---|---|
| 2026-08-24 | DEAN ROBERT W II — Interim CFO | Sale | $42K |
| 2026-08-24 | DEAN ROBERT W II — Interim CFO | Other | — |
| 2026-08-24 | CHANG KUO WEI HERBERT — Director | Sale | $64K |
| 2026-08-11 | CHANG KUO WEI HERBERT — Director | Sale | $71K |
| 2026-08-05 | DEAN ROBERT W II — Interim CFO | Sale | $141K |
| 2026-08-04 | Sciammas Maurice — EVP, WW Sales & Marketing | Gift | — |
| 2026-08-03 | Sciammas Maurice — EVP, WW Sales & Marketing | Sale | $40K |
| 2026-07-25 | DEAN ROBERT W II — Interim CFO | Award | — |
| 2026-07-15 | Sciammas Maurice — EVP, WW Sales & Marketing | Sale | $692K |
| 2026-07-15 | Sciammas Maurice — EVP, WW Sales & Marketing | Sale | $361K |
Insider transactions are parsed from SEC Form 4 filings and shown alongside the congressional trades above. Institutional 13F positions are tracked separately on the institutional holdings page.
As of July 2025, Monolithic Power Systems, Inc. has 14 federal contract award records on file from USAspending.gov — most recently -$356K from the Department of Defense on 2025-07-07.
| Award date | Agency | Amount |
|---|---|---|
| 2025-07-07 | Department of Defense · Department of the Air Force | -$356K |
| 2024-07-16 | Department of Energy | $173K |
| 2023-08-29 | Department of Energy | $191K |
| 2023-06-29 | Department of Defense · Department of the Air Force | $79K |
| 2022-06-21 | Department of Defense · Department of the Air Force | $78K |
| 2021-08-11 | Department of Defense · Department of the Air Force | $114K |
| 2021-06-08 | Department of Defense · Department of the Air Force | $65K |
| 2021-05-10 | Department of Defense · Department of the Air Force | $112K |
| 2021-03-10 | Department of Defense · Department of the Air Force | $101K |
| 2020-09-10 | Department of Defense · Department of the Navy | $93K |
Negative amounts are contract de-obligations. Browse and filter every award on the government contracts page.
For fiscal year 2025, Monolithic Power Systems, Inc. reported revenue of $2.79B and net income of $621.5M, per SEC filings.
Most recent reported quarter: Q2 FY2026 — revenue $980.6M, net income $257.3M.
Figures come from SEC financial statement filings. The full annual and quarterly statement history is in the Financials tab above.