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Equity · Technology

MPWR

NASDAQ

Monolithic Power Systems (MPWR)

$1,140.67 −2.34% vs prior close Finazon · prior-day close, indicative (IEX-derived, not the official close) · Oct 23, 2026

Reddit mentioned MPWR 3 times in the 30 days to 25 October 2026, across 3 of the communities we track. All of them were scored for sentiment: 100% read bullish, 0% bearish and 0% neither. Reddit data updated 25 October 2026.

Price · Chart
59 sessions
$1,500 $1,100 27 Jul 23 Oct

The line runs $1,340.47 on 27 July through $1,140.67 on 23 October, on a scale from $1,100 to $1,500. Days the market did not trade hold the previous close, flat.

Track this symbol on TradingView TradingView chart · our licensed closes: 59 sessions, 27 Jul – 23 Oct 2026
Market cap $56.1B
P/E (TTM) 69.6
52-week range $856.95 – $1,683
Avg volume 36.0K
Mentions · 30d 3

as of Oct 23, 2026

Monolithic Power Systems (MPWR) · crowd attention × price

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

Day21 Oct 2026

MENTIONS10–2 / day
PRICE$1,283.29$1,100–$1,500
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, held flat and diagonally hatched over days the market was closed.per day012usd$1,100$1,200$1,300$1,400$1,50026 Sep3 Oct11 Oct18 Oct25 Oct
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, held flat and diagonally hatched over days the market was closed.26 Sep11 Oct25 Oct
The Distributed Sentinel 25 Oct 2026

MPWR drew 3 Reddit mentions over the 30 days to 25 October 2026

This chart in words

The chart plots daily Reddit mentions of MPWR over the 30 days to 25 October 2026: 3 in total, busiest on 29 September with 1, and 1 on the last day counted. The line is the daily close over the same window: $1,352 on 28 September, $1,140.67 on 23 October. Of those days, 20 were trading sessions and the other 10 are hatched on the chart. On 8 of them no session took place, and the last close before it is carried forward rather than plotted; on 2 of them no session took place, and this window holds no earlier close to carry forward.

Monolithic Power Systems (MPWR) on Reddit · 30d

n = 3 scored · Method

In the 30 days to 26 Oct 2026, Monolithic Power Systems drew 3 Reddit mentions in the finance subreddits we track, 3 of them scored for sentiment.

3 mentions of MPWR were scored for sentiment in these 30 days, so each one carries 1/3 of any share. A split that coarse 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 33% 1 +0.13
r/investing 33% 1 +0.16
r/wallstreetbets 33% 1 +0.10

Monolithic Power Systems (MPWR) insider trades

SEC Form 4 · last 90 days · newest reported trade 28 Sep 2026

In the 90 days to 26 Oct 2026, Monolithic Power Systems insiders reported 7 open-market sales and no purchases (SEC Form 4); the filings we hold, back to 30 Mar 2026, show no open-market purchase.

Open-market buys 0
Open-market sells 7
Net sold $40.72M
Non-trade filings 3
Date Insider Type Shares Value
28 Sep 2026 Hsing Michael CEO Sell 30,000 $40.35M
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

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 4,000
24 Aug 2026 DEAN ROBERT W II Interim CFO Other 5
04 Aug 2026 Sciammas Maurice EVP, WW Sales & Marketing Gift 50,000

Monolithic Power Systems (MPWR) reported financials

SEC EDGAR XBRL SEC EDGAR

Monolithic Power Systems 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

Monolithic Power Systems (MPWR) earnings

SEC EDGAR

Monolithic Power Systems last reported earnings on 30 Jun 2026 for Q2 2026, with EPS of $5.22; no next date is announced in SEC filings yet.

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

Monolithic Power Systems (MPWR) institutional holders (13F)

SEC Form 13F SEC EDGAR

13 of the 45 institutional funds we track reported a Monolithic Power Systems 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.

Monolithic Power Systems (MPWR) fails-to-deliver

SEC CNS data SEC

On 21 Sep 2026, 40 shares of Monolithic Power Systems failed to deliver (about $49K).

Settlement date Shares failed Notional % of shares out
21 Sep 2026 40 $49K <0.001%
17 Sep 2026 40 $46K <0.001%

Congressional trades in Monolithic Power Systems (MPWR)

STOCK Act disclosures House disclosures

The most recent congressional trade disclosed in Monolithic Power Systems 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
20 Oct 2025 filed 19 Nov 2025 Michael Guest house · Republican–MS Purchase $1K–$15K
08 Apr 2025 filed 08 May 2025 Robert P. Bresnahan, Jr. house · Republican–PA Purchase $1K–$15K
13 Jan 2025 filed 13 Feb 2025 Robert P. Bresnahan, Jr. house · Republican–PA Sale $1K–$15K

Monolithic Power Systems (MPWR): frequently asked questions

From live data

Have Monolithic Power Systems insiders bought or sold shares recently?

In the 90 days to 26 Oct 2026, Monolithic Power Systems insiders reported 7 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.

How many institutions hold Monolithic Power Systems?

13 of the 45 institutional funds we track reported a Monolithic Power Systems position for the quarter ended 30 Jun 2026, per SEC Form 13F filings.

Has Monolithic Power Systems had fails-to-deliver recently?

Yes. The most recent SEC fails-to-deliver record for Monolithic Power Systems is dated 21 Sep 2026, when 40 shares failed to deliver.

When did Monolithic Power Systems last report earnings?

Monolithic Power Systems last reported earnings on 30 Jun 2026 for Q2 2026, with EPS of $5.22; no next date is announced in SEC filings yet.

What exchange is Monolithic Power Systems listed on?

Monolithic Power Systems trades on NASDAQ under the ticker MPWR.

What is Reddit saying about Monolithic Power Systems?

Monolithic Power Systems was mentioned 1 times in the last 7 days across the finance subreddits we track, and 3 times over the trailing 30 days. Of 3 classified mentions, 100% read bullish, 0% bearish and 0% neutral. Crowd sentiment is a social signal, not investment advice.

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.

Sources

  1. Finazonprior-day close, indicative (IEX-derived, not the official close), most closes dollar-rounded at the source
  2. TradingViewthe price chart widget, drawn by TradingView from their own data
  3. RedditReddit ingest across the tracked finance subreddits
  4. SEC EDGARSEC EDGAR XBRL company facts · latest period ended 30 Jun 2026
  5. SEC EDGARSEC EDGAR 13F filings
  6. SECSEC fails-to-deliver (CNS) data
  7. House disclosuresU.S. House of Representatives financial disclosures
  8. SEC EDGARValuation computed from SEC EDGAR filings