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Equity · Technology

MPWR

Monolithic Power Systems, Inc. · NasdaqGS

$1,143 −7.37% 1D Finazon · prior-day close · Sep 14, 2026

Reddit mentioned MPWR 1 times in the 30 days to 15 September 2026, in 1 of the communities we track. All of them were scored for sentiment: 0% read bullish, 0% bearish and 100% neither. Reddit data updated 15 September 2026.

Price · Chart
Our own end-of-day closes 56 sessions
$1,600 $1,000 17 Jun 14 Sep

The line runs $1,447 on 17 June through $1,143 on 14 September, on a scale from $1,000 to $1,600. Days the market did not trade hold the previous close, flat.

Track this symbol on TradingView

The chart above plots the price of MPWR over the range selected — one day to the full history — drawn by TradingView from their own data. Our own licensed end-of-day series holds 56 sessions over that window: $1,447 on 17 June 2026 through $1,143 on 14 September 2026.

Market cap $61.8B
P/E (TTM) 80.1
52-week range $821 – $1,683
Avg volume 127.2K
Mentions · 30d 1

Finazon · prior-day close · valuation computed from SEC EDGAR filings · as of Sep 14, 2026

MPWR · crowd attention × price

Share ↗
Post on X Share on Reddit Share on LinkedIn
1 mentions

Day14 Sep 2026

MENTIONS10–2 / day
PRICE$1,143$1,100–$1,500Source: Finazon
MPWR over the last 30 days, plotting daily Reddit mentions as bars, left-hand scale; the daily closing price as a line on its own right-hand scale, solid across consecutive trading days, breaking wherever we hold no close at all, held flat and diagonally hatched over days the market was closed, diagonally hatched over days we hold no close for.per day012usd$1,100$1,200$1,300$1,400$1,50017 Aug24 Aug1 Sep8 Sep15 Sep
MPWR over the last 30 days, plotting daily Reddit mentions as bars, left-hand scale; the daily closing price as a line on its own right-hand scale, solid across consecutive trading days, breaking wherever we hold no close at all, held flat and diagonally hatched over days the market was closed, diagonally hatched over days we hold no close for.17 Aug1 Sep15 Sep
The Distributed Sentinel 15 Sep 2026

MPWR's busiest day for Reddit mentions was also its lowest close of the window — 1 mentions and $1,143 on 14 September

This chart in words

The chart plots daily Reddit mentions of MPWR over the 30 days to 15 September 2026: 1 in total, busiest on 14 September with 1, and 1 on the last day counted. Across this window the close ran between $1,143 on 14 September and $1,415 on 17 August. The line is the daily close over the same window: $1,415 on 17 August, $1,143 on 14 September. Of those days, 15 were trading sessions and the other 15 are hatched on the chart. On 9 of them no session took place, and the last close before it is carried forward rather than plotted; on 6 of them we hold no close at all, which is a gap in our own record rather than a closure we can prove.

Finazon · prior-day close, most closes dollar-rounded at the source

Crowd sentiment on MPWR · 30d

n = 1 scored · Method

1 mention of MPWR was scored for sentiment in these 30 days, so that one reading IS the sample. A bullish or bearish share of it could only ever read 0% or 100%, which states the sample size and not the crowd — so none is drawn. The chart on this page applies the same 5-mention floor to every day it plots.

Where MPWR is discussed

(30d)
r/stocks 100% 1 −0.04

MPWR insider trades

SEC Form 4 · last 90 days · newest reported trade 24 Aug 2026
Open-market buys 0
Open-market sells 8
Net sold $20.58M
Non-trade filings 4
Date Insider Type Shares Value
24 Aug 2026 CHANG KUO WEI HERBERT Director Sell 50 $64K
24 Aug 2026 DEAN ROBERT W II Interim CFO Sell 32 $42K
17 Aug 2026 DEAN ROBERT W II Interim CFO Sell 6 $8K
11 Aug 2026 CHANG KUO WEI HERBERT Director Sell 50 $71K
05 Aug 2026 DEAN ROBERT W II Interim CFO Sell 105 $141K
03 Aug 2026 Sciammas Maurice EVP, WW Sales & Marketing Sell 30 $40K
15 Jul 2026 Sciammas Maurice EVP, WW Sales & Marketing Sell 14,950 $20.18M
01 Jul 2026 Sciammas Maurice EVP, WW Sales & Marketing Sell 30 $41K

Compensation mechanics Share grants, option exercises, tax withholding and transfers. They reach the same Form 4 as a trade, but they are not the insider buying or selling on the open market, so no purchase or sale value applies to them.

Date Insider Type Shares Value
31 Aug 2026 Tseng Saria EVP & General Counsel Gift 2,000
24 Aug 2026 DEAN ROBERT W II Interim CFO Other 5
04 Aug 2026 Sciammas Maurice EVP, WW Sales & Marketing Gift 25,000
25 Jul 2026 DEAN ROBERT W II Interim CFO Award 1,359

MPWR reported financials

SEC EDGAR XBRL

MPWR reported revenue of $2.8B for the fiscal year ended 31 Dec 2025. Net income over the same period was $621.5M.

Figure Reported Period
Revenue $2.8B 31 Dec 2025 fiscal year
Net income $621.5M 31 Dec 2025 fiscal year
Diluted EPS $12.86 31 Dec 2025 fiscal year
Total assets $4.7B 30 Jun 2026 at period end
Total equity $3.9B 30 Jun 2026 at period end

Source: SEC EDGAR XBRL company facts · latest period ended 30 Jun 2026

MPWR earnings

SEC EDGAR
Date Period EPS Revenue
30 Jun 2026 Q2 2026 $5.22 —
31 Mar 2026 Q1 2026 $3.92 —
31 Dec 2025 FY 2025 $12.86 —
30 Sep 2025 FY 2025 $3.74 —
30 Jun 2025 FY 2025 $2.81 —
31 Mar 2025 Q1 2025 $2.81 —

Next report no date announced in SEC filings yet

Reported figures & scheduled dates · SEC EDGAR filings

MPWR institutional holders

SEC Form 13F

13 of the 45 institutional funds we track reported a MPWR position for the quarter ended 30 Jun 2026 — a combined $843.9M; the latest of those filings landed 02 Sep 2026.

Fund Action Shares Value
Two Sigma Investments Added +1,485.2% shares 190,505 $263.3M
Millennium Management New position 136,835 $189.2M
D1 Capital Partners New position 85,103 $117.6M
Citadel Advisors Added +369.9% shares 63,487 $87.8M
Renaissance Technologies New position 63,066 $87.2M
Man Group Added +470.2% shares 37,110 $51.3M
AQR Capital Management Trimmed −35.0% shares 24,947 $33.8M
Bridgewater Associates Trimmed −74.1% shares 3,096 $4.3M
D. E. Shaw & Co. Added +149.4% shares 3,035 $4.2M
Marshall Wace Trimmed −72.5% shares 1,849 $2.6M

Showing the 10 largest of 13 reported positions. The figures above count all of them.

Source: SEC EDGAR 13F filings

MPWR fails-to-deliver

SEC CNS data

On 13 Aug 2026, 41 shares of MPWR failed to deliver (about $58K).

Settlement date Shares failed Notional % of shares out
13 Aug 2026 41 $58K <0.001%
03 Aug 2026 1 $1K <0.001%

Source: SEC fails-to-deliver (CNS) data

Congressional trades in MPWR

STOCK Act disclosures

The most recent congressional trade disclosed in MPWR is a sale by Byron Donalds (house, FL), dated 05 Jun 2026.

Date Member Type Amount
05 Jun 2026 filed 15 Jul 2026 Byron Donalds house · Republican–FL Sale $1K–$15K

Source: U.S. House of Representatives financial disclosures

MPWR — frequently asked questions

From live data

How often is MPWR mentioned on Reddit?

MPWR was mentioned 1 times in the last 7 days across the finance subreddits we track, and 1 times over the trailing 30 days.

Is Reddit bullish or bearish on MPWR?

Across 1 classified MPWR mentions in the last 30 days, 0% read bullish, 0% bearish and 100% neutral. Crowd sentiment is a social signal, not investment advice.

When did MPWR last report earnings?

Monolithic Power Systems (MPWR) last reported earnings on 30 Jun 2026 for Q2 2026, per SEC filings.

Are MPWR insiders buying or selling?

SEC Form 4 filings over the last 90 days show 0 buys and 8 sells by MPWR insiders on the open market. A further 4 filings were grants, awards, gifts or exercises rather than open-market trades.

What exchange is MPWR listed on?

Monolithic Power Systems trades on NASDAQ under the ticker MPWR.

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.