Rafferty Asset Management, LLC Monolithic Power Systems Inc Transaction History

Rafferty Asset Management, LLC

  • $29.7 Billion
  • Q3 2025

A detailed history of Rafferty Asset Management, LLC transactions in Monolithic Power Systems Inc stock. As of the latest transaction made, Rafferty Asset Management, LLC holds 379,318 shares of MPWR stock, worth $349 Million. This represents 1.17% of its overall portfolio holdings.

Number of Shares
379,318
Previous 529,124 28.31%
Holding current value
$349 Million
Previous $387 Million 9.76%
% of portfolio
1.17%
Previous 1.32%

Shares

33 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Nov 12, 2025
SELL
$711.24 - $922.81 $107 Million - $138 Million
-149,806 Reduced 28.31%
379,318 $349 Million
Q2 2025

Aug 14, 2025
BUY
$455.19 - $737.73 $63.8 Million - $103 Million
140,269 Added 36.07%
529,124 $387 Million
Q1 2025

May 14, 2025
SELL
$565.7 - $720.25 $17.2 Million - $21.9 Million
-30,340 Reduced 7.24%
388,855 $226 Million
Q4 2024

Feb 14, 2025
BUY
$560.06 - $942.58 $15.8 Million - $26.5 Million
28,126 Added 7.19%
419,195 $248 Million
Q3 2024

Nov 13, 2024
SELL
$757.04 - $947.16 $3.19 Million - $3.99 Million
-4,217 Reduced 1.07%
391,069 $362 Million
Q2 2024

Aug 13, 2024
SELL
$591.52 - $852.56 $17.9 Million - $25.8 Million
-30,272 Reduced 7.11%
395,286 $325 Million
Q1 2024

May 13, 2024
BUY
$571.06 - $767.6 $68.9 Million - $92.6 Million
120,606 Added 39.55%
425,558 $288 Million
Q4 2023

Feb 13, 2024
BUY
$399.73 - $637.39 $16.5 Million - $26.4 Million
41,387 Added 15.7%
304,952 $192 Million
Q3 2023

Nov 13, 2023
SELL
$440.38 - $588.72 $6.18 Million - $8.26 Million
-14,035 Reduced 5.06%
263,565 $122 Million
Q2 2023

Aug 11, 2023
BUY
$398.61 - $540.23 $25.7 Million - $34.9 Million
64,533 Added 30.29%
277,600 $150 Million
Q1 2023

May 11, 2023
BUY
$342.95 - $530.09 $10.9 Million - $16.8 Million
31,655 Added 17.45%
213,067 $107 Million
Q4 2022

Feb 13, 2023
BUY
$309.2 - $405.03 $6.31 Million - $8.27 Million
20,406 Added 12.67%
181,412 $64.1 Million
Q3 2022

Nov 14, 2022
SELL
$363.4 - $536.88 $1.95 Million - $2.89 Million
-5,376 Reduced 3.23%
161,006 $58.5 Million
Q2 2022

Aug 12, 2022
SELL
$384.04 - $479.19 $12.6 Million - $15.7 Million
-32,775 Reduced 16.46%
166,382 $63.9 Million
Q1 2022

May 13, 2022
BUY
$361.12 - $512.21 $13.4 Million - $19 Million
36,998 Added 22.82%
199,157 $96.7 Million
Q4 2021

Feb 10, 2022
BUY
$460.83 - $575.97 $24.3 Million - $30.3 Million
52,691 Added 48.13%
162,159 $80 Million
Q3 2021

Nov 10, 2021
SELL
$370.18 - $517.92 $13.5 Million - $18.8 Million
-36,384 Reduced 24.95%
109,468 $53.1 Million
Q2 2021

Aug 10, 2021
BUY
$306.1 - $389.53 $5.57 Million - $7.09 Million
18,195 Added 14.25%
145,852 $54.5 Million
Q1 2021

May 10, 2021
BUY
$302.05 - $403.18 $22.1 Million - $29.5 Million
73,219 Added 134.5%
127,657 $45.1 Million
Q4 2020

Feb 10, 2021
SELL
$272.37 - $366.23 $45,758 - $61,526
-168 Reduced 0.31%
54,438 $19.9 Million
Q3 2020

Nov 13, 2020
BUY
$235.55 - $282.85 $1.53 Million - $1.84 Million
6,488 Added 13.48%
54,606 $15.3 Million
Q2 2020

Aug 07, 2020
BUY
$153.42 - $237.0 $5.11 Million - $7.89 Million
33,282 Added 224.33%
48,118 $11.4 Million
Q1 2020

May 15, 2020
SELL
$135.22 - $191.43 $1.26 Million - $1.79 Million
-9,329 Reduced 38.61%
14,836 $2.48 Million
Q4 2019

Feb 10, 2020
BUY
$135.15 - $182.89 $453,968 - $614,327
3,359 Added 16.14%
24,165 $4.3 Million
Q3 2019

Nov 14, 2019
SELL
$136.01 - $161.55 $1.9 Million - $2.25 Million
-13,942 Reduced 40.12%
20,806 $3.24 Million
Q2 2019

Aug 09, 2019
BUY
$116.45 - $157.53 $242,914 - $328,607
2,086 Added 6.39%
34,748 $4.72 Million
Q1 2019

May 15, 2019
BUY
$108.61 - $145.01 $336,582 - $449,385
3,099 Added 10.48%
32,662 $4.43 Million
Q4 2018

Feb 11, 2019
SELL
$104.17 - $134.73 $86,565 - $111,960
-831 Reduced 2.73%
29,563 $3.44 Million
Q3 2018

Nov 09, 2018
SELL
$125.53 - $151.38 $1.9 Million - $2.3 Million
-15,164 Reduced 33.29%
30,394 $3.82 Million
Q2 2018

Aug 14, 2018
SELL
$110.8 - $141.63 $33,794 - $43,197
-305 Reduced 0.67%
45,558 $6.09 Million
Q1 2018

May 15, 2018
BUY
$103.82 - $125.51 $931,888 - $1.13 Million
8,976 Added 24.33%
45,863 $5.31 Million
Q4 2017

Feb 14, 2018
BUY
$107.55 - $126.64 $1.59 Million - $1.88 Million
14,818 Added 67.14%
36,887 $4.15 Million
Q3 2017

Nov 13, 2017
BUY
$95.87 - $106.55 $2.12 Million - $2.35 Million
22,069
22,069 $2.35 Million

Others Institutions Holding MPWR

# of Institutions
1,094
Shares Held
66.4M
Call Options Held
391K
Put Options Held
403K
View Full List

About MONOLITHIC POWER SYSTEMS INC

MPWR Quotes by TradingView
  • Ticker MPWR
  • Exchange NASDAQ
  • Sector Technology
  • Industry Semiconductors
  • Shares Outstandng 46,941,000
  • Market Cap $43.2B
  • Description
  • Monolithic Power Systems, Inc. engages in the design, development, marketing, and sale of semiconductor-based power electronics solutions for the computing and storage, automotive, industrial, communications, and consumer markets. The company provides direct current (DC) to DC integrated circuits (ICs) that are used to convert and control voltag...
More about MPWR
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