Equity · Technology
MPWR
NASDAQMonolithic Power Systems (MPWR)
The line runs 1,415 USD on 17 August through 1,389.41 USD on 13 November, on a scale from 1,100 to 1,500. Days the market did not trade hold the previous close, flat.
- Market cap
- 67.8B USD
- P/E (TTM)
- 76.6
- Revenue, year to Dec 2025
- 2.8B USD
- EPS, diluted, year to Dec 2025
- 12.86 USD
- 52-week range
- 856.95 USD – 1,683 USD
- Avg volume
- 47.2K
- Mentions, 30 days
- 2
as of Nov 13, 2026
Have Monolithic Power Systems (MPWR) insiders bought or sold shares recently?
In the 90 days to 15 Nov 2026, Monolithic Power Systems insiders reported 5 open-market sales and no purchases (SEC Form 4); the filings we hold, back to 30 Mar 2026, show no open-market purchase.
Form 4, 90 days to 15 Nov 2026, newest reported trade 11 Nov 2026
| Reported | Insider | Type | Shares | Value |
|---|---|---|---|---|
| 11 Nov 2026 | Balow Frank Anthony IIIChief Financial Officer | Sell | 20 | 29K USD |
| 28 Sep 2026 | Hsing MichaelCEO | Sell | 30,000 | 40.3M USD |
| 24 Aug 2026 | CHANG KUO WEI HERBERTDirector | Sell | 50 | 64K USD |
| 24 Aug 2026 | DEAN ROBERT W IIInterim CFO | Sell | 32 | 42K USD |
| 17 Aug 2026 | DEAN ROBERT W IIInterim CFO | Sell | 6 | 8K USD |
| Sold | 5 open-market sales | 30,108 | $40.49M |
3 other filings in the window: grants, exercises, tax withholding and transfers, not trades
| Reported | Insider | Type | Shares | Value |
|---|---|---|---|---|
| 03 Nov 2026 | Sciammas MauriceEVP, WW Sales & Marketing | Gift | 26,000 | |
| 31 Aug 2026 | Tseng SariaEVP & General Counsel | Gift | 4,000 | |
| 24 Aug 2026 | DEAN ROBERT W IIInterim CFO | Other | 5 |
Which funds hold Monolithic Power Systems (MPWR)?
4 of the 45 institutional funds we track reported a Monolithic Power Systems position for the quarter ended 30 Sep 2026 — a combined 261.5M USD; the latest of those filings landed 13 Nov 2026.
| Fund | Position | Shares | Value | Shares q/q |
|---|---|---|---|---|
| Whale Rock Capital Management | New position | 142,551 | 192.0M USD | |
| Marshall Wace | Added | 47,610 | 64.1M USD | +2,474.9% |
| Renaissance Technologies | Trimmed | 3,716 | 5.0M USD | −94.1% |
| Fisher Asset Management | Held (±25%) | 198 | 268K USD | +11.9% |
Have members of Congress traded Monolithic Power Systems (MPWR)?
The most recent congressional trade disclosed in Monolithic Power Systems is a sale by Byron Donalds (house, FL), dated 05 Jun 2026.
STOCK Act disclosures
| Traded | Member | Type | Amount | Filed after |
|---|---|---|---|---|
| 05 Jun 2026 | Byron Donaldshouse · Republican–FL | Sale | 1K USD–15K USD | 40 days |
| 20 Oct 2025 | Michael Guesthouse · Republican–MS | Purchase | 1K USD–15K USD | 30 days |
| 08 Apr 2025 | Robert P. Bresnahan, Jr.house · Republican–PA | Purchase | 1K USD–15K USD | 30 days |
| 13 Jan 2025 | Robert P. Bresnahan, Jr.house · Republican–PA | Sale | 1K USD–15K USD | 31 days |
What has been filed or recorded for Monolithic Power Systems (MPWR)?
The filings we hold for Monolithic Power Systems, newest first: 2 fails-to-deliver days, 4 quarterly earnings reports, 3 annual reports and 5 reported financial figures, the latest dated 13 Oct 2026. No next earnings date is announced in SEC filings yet.
| And | ||||
|---|---|---|---|---|
| 13 Oct 2026 | Fails to deliver | Shares failed to deliver | 2,314 shares | 3.1M USD notional · 0.005% of shares out |
| 02 Oct 2026 | Fails to deliver | Shares failed to deliver | 24 shares | 33K USD notional · <0.001% of shares out |
| 30 Sep 2026 | Quarterly earnings | Q3 2026 reported | EPS 5.51 USD | |
| 30 Sep 2026 | Financials | Total assets | 4.7B USD | at period end |
| 30 Sep 2026 | Financials | Total equity | 3.7B USD | at period end |
| 30 Jun 2026 | Quarterly earnings | Q2 2026 reported | EPS 5.22 USD | |
| 31 Mar 2026 | Quarterly earnings | Q1 2026 reported | EPS 3.92 USD | |
| 31 Dec 2025 | Annual report | FY 2025 reported | EPS 12.86 USD | |
| 31 Dec 2025 | Financials | Revenue | 2.8B USD | fiscal year |
| 31 Dec 2025 | Financials | Net income | 621.5M USD | fiscal year |
| 31 Dec 2025 | Financials | Diluted EPS | 12.86 USD | fiscal year |
| 30 Sep 2025 | Annual report | FY 2025 reported | EPS 3.74 USD | |
| 30 Jun 2025 | Annual report | FY 2025 reported | EPS 2.81 USD | |
| 31 Mar 2025 | Quarterly earnings | Q1 2025 reported | EPS 2.81 USD |
What is Reddit saying about Monolithic Power Systems (MPWR)?
Reddit mentioned MPWR 2 times in the 30 days to 14 November 2026, across 2 of the communities we track. All of them were scored for sentiment: 50% read bullish, 0% bearish and 50% neither. Reddit data updated 14 November 2026.
30-day window, Method
How do Reddit mentions of Monolithic Power Systems (MPWR) compare with its price?
Share ↗
Which subreddits are talking about Monolithic Power Systems (MPWR)?
30 days
| Community | Share | Mentions | Net sentiment |
|---|---|---|---|
| r/investing | 50% | 1 | +0.16 |
| r/stocks | 50% | 1 | +0.04 |
What do people ask about Monolithic Power Systems (MPWR)?
What did Monolithic Power Systems shares close at?1,389.41
Monolithic Power Systems closed at 1,389.41 USD on 13 Nov 2026, down 4.01% on the close before. That is the end-of-day price from Finazon, not a live quote.
What is Monolithic Power Systems’ market cap?67.8B
Monolithic Power Systems is worth 67.8B USD by market value as of 13 Nov 2026, which is the share price times the shares on issue from its SEC filings.
What is Monolithic Power Systems’ P/E ratio?76.6
Monolithic Power Systems has a price-to-earnings ratio of 76.6, as of 13 Nov 2026: the share price divided by what the company earned per share over the last four reported quarters. A higher number means the market pays more for each dollar of earnings.
What is Monolithic Power Systems’ revenue?2.8B
Monolithic Power Systems reported revenue of 2.8B USD for the year ended 31 Dec 2025, as filed with the SEC. See Filings
Have Monolithic Power Systems insiders bought or sold shares recently?5 sales
In the 90 days to 15 Nov 2026, Monolithic Power Systems insiders reported 5 open-market sales and no purchases (SEC Form 4); the filings we hold, back to 30 Mar 2026, show no open-market purchase. A further 3 filings were grants, awards, gifts or exercises rather than open-market trades. See Insiders
Which funds own Monolithic Power Systems?4 of 45
4 of the 45 funds we track reported a Monolithic Power Systems position for the quarter ended 30 Sep 2026, per their SEC Form 13F filings. The largest reported positions were Whale Rock Capital Management, Marshall Wace and Renaissance Technologies. See Funds
Have members of Congress traded Monolithic Power Systems?4 trades
Yes. 4 trades in Monolithic Power Systems appear in the congressional disclosures we hold; the latest is a sale by Byron Donalds (House, FL) dated 5 Jun 2026, filed 15 Jul 2026. Amounts are disclosed as ranges, and a filing can follow the trade by up to 45 days. See Congress
When did Monolithic Power Systems last report earnings?5.51
Monolithic Power Systems last reported earnings on 30 Sep 2026 for Q3 2026, with EPS of 5.51 USD; no next date is announced in SEC filings yet. See Filings
What is Reddit saying about Monolithic Power Systems?0 mentions
Monolithic Power Systems was mentioned 0 times in the last 7 days across the finance subreddits we track, and 2 times over the trailing 30 days. Of the 2 mentions scored for sentiment, 50% read bullish and 0% bearish. That is a social signal, not investment advice. See Reddit
Answers are generated from the live figures on this page — Reddit crowd data, SEC filings and open company records — and update as the data does.
References
- Finazonprior-day close, indicative (IEX-derived, not the official close), most closes dollar-rounded at the source
- TradingViewthe price chart widget, drawn by TradingView from their own data
- RedditReddit ingest across the tracked finance subreddits
- SEC EDGARForm 4 filings (insider transactions)
- SEC EDGAR13F filings
- Wikimedia CommonsPortraits via Wikimedia Commons. Byron Donalds: United States Congress, Public domain; Robert P. Bresnahan, Jr.: House Creative Services, Public domain; Michael Guest: Franmarie Metzler, House Creative Services/U.S. House Office of Photography, Public domain.
- House disclosuresU.S. House of Representatives financial disclosures
- SECSEC fails-to-deliver (CNS) data
- SEC EDGARXBRL company facts, latest period ended 30 Sep 2026
- SEC EDGARreported earnings figures and scheduled report dates
- SEC EDGARValuation computed from SEC EDGAR filings