Alliancebernstein L.P. Monolithic Power Systems Inc Transaction History

Alliancebernstein L.P.

  • $290 Billion
  • Q2 2025

A detailed history of Alliancebernstein L.P. transactions in Monolithic Power Systems Inc stock. As of the latest transaction made, Alliancebernstein L.P. holds 314,136 shares of MPWR stock, worth $316 Million. This represents 0.08% of its overall portfolio holdings.

Number of Shares
314,136
Previous 327,418 4.06%
Holding current value
$316 Million
Previous $190 Million 20.99%
% of portfolio
0.08%
Previous 0.07%

Shares

32 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q2 2025

Aug 14, 2025
SELL
$455.19 - $737.73 $6.05 Million - $9.8 Million
-13,282 Reduced 4.06%
314,136 $230 Million
Q1 2025

May 15, 2025
SELL
$565.7 - $720.25 $8.93 Million - $11.4 Million
-15,784 Reduced 4.6%
327,418 $190 Million
Q4 2024

Feb 12, 2025
SELL
$560.06 - $942.58 $57 Million - $95.9 Million
-101,763 Reduced 22.87%
343,202 $203 Million
Q3 2024

Nov 14, 2024
SELL
$757.04 - $947.16 $40.4 Million - $50.5 Million
-53,366 Reduced 10.71%
444,965 $412 Million
Q2 2024

Aug 14, 2024
BUY
$591.52 - $852.56 $121 Million - $175 Million
204,758 Added 69.75%
498,331 $409 Million
Q1 2024

May 14, 2024
SELL
$571.06 - $767.6 $19.2 Million - $25.8 Million
-33,659 Reduced 10.29%
293,573 $199 Million
Q4 2023

Feb 14, 2024
SELL
$399.73 - $637.39 $12.9 Million - $20.6 Million
-32,389 Reduced 9.01%
327,232 $206 Million
Q3 2023

Nov 14, 2023
BUY
$440.38 - $588.72 $14.5 Million - $19.3 Million
32,821 Added 10.04%
359,621 $166 Million
Q2 2023

Aug 15, 2023
SELL
$398.61 - $540.23 $50 Million - $67.7 Million
-125,355 Reduced 27.72%
326,800 $177 Million
Q1 2023

May 15, 2023
SELL
$342.95 - $530.09 $27 Million - $41.7 Million
-78,621 Reduced 14.81%
452,155 $226 Million
Q4 2022

Feb 14, 2023
BUY
$309.2 - $405.03 $24.5 Million - $32.1 Million
79,192 Added 17.54%
530,776 $188 Million
Q3 2022

Nov 15, 2022
SELL
$363.4 - $536.88 $23.3 Million - $34.5 Million
-64,184 Reduced 12.44%
451,584 $164 Million
Q2 2022

Aug 15, 2022
SELL
$384.04 - $479.19 $33.3 Million - $41.6 Million
-86,717 Reduced 14.39%
515,768 $198 Million
Q1 2022

May 13, 2022
SELL
$361.12 - $512.21 $7.98 Million - $11.3 Million
-22,110 Reduced 3.54%
602,485 $293 Million
Q4 2021

Feb 14, 2022
SELL
$460.83 - $575.97 $2.95 Million - $3.68 Million
-6,391 Reduced 1.01%
624,595 $308 Million
Q3 2021

Nov 10, 2021
SELL
$370.18 - $517.92 $29.5 Million - $41.3 Million
-79,661 Reduced 11.21%
630,986 $306 Million
Q2 2021

Jul 30, 2021
BUY
$306.1 - $389.53 $17.5 Million - $22.3 Million
57,243 Added 8.76%
710,647 $265 Million
Q1 2021

May 06, 2021
BUY
$302.05 - $403.18 $24.4 Million - $32.6 Million
80,923 Added 14.14%
653,404 $231 Million
Q4 2020

Feb 08, 2021
BUY
$272.37 - $366.23 $81.2 Million - $109 Million
298,238 Added 108.75%
572,481 $210 Million
Q3 2020

Nov 12, 2020
SELL
$235.55 - $282.85 $54.6 Million - $65.6 Million
-231,874 Reduced 45.81%
274,243 $76.7 Million
Q2 2020

Aug 13, 2020
SELL
$153.42 - $237.0 $1.78 Million - $2.74 Million
-11,570 Reduced 2.23%
506,117 $120 Million
Q1 2020

May 14, 2020
SELL
$135.22 - $191.43 $13.9 Million - $19.7 Million
-102,661 Reduced 16.55%
517,687 $86.7 Million
Q4 2019

Feb 18, 2020
BUY
$135.15 - $182.89 $924,831 - $1.25 Million
6,843 Added 1.12%
620,348 $110 Million
Q3 2019

Nov 14, 2019
BUY
$136.01 - $161.55 $3.75 Million - $4.45 Million
27,564 Added 4.7%
613,505 $95.5 Million
Q2 2019

Aug 14, 2019
SELL
$116.45 - $157.53 $181,429 - $245,431
-1,558 Reduced 0.27%
585,941 $79.6 Million
Q1 2019

May 14, 2019
BUY
$108.61 - $145.01 $9.02 Million - $12 Million
83,036 Added 16.46%
587,499 $79.6 Million
Q4 2018

Feb 13, 2019
SELL
$104.17 - $134.73 $18.3 Million - $23.6 Million
-175,203 Reduced 25.78%
504,463 $58.6 Million
Q3 2018

Nov 08, 2018
BUY
$125.53 - $151.38 $4.18 Million - $5.05 Million
33,330 Added 5.16%
679,666 $85.3 Million
Q2 2018

Aug 13, 2018
BUY
$110.8 - $141.63 $2.53 Million - $3.23 Million
22,821 Added 3.66%
646,336 $86.4 Million
Q1 2018

May 14, 2018
SELL
$103.82 - $125.51 $7.14 Million - $8.63 Million
-68,743 Reduced 9.93%
623,515 $72.2 Million
Q4 2017

Feb 13, 2018
BUY
$107.55 - $126.64 $2.27 Million - $2.67 Million
21,111 Added 3.15%
692,258 $77.8 Million
Q3 2017

Nov 13, 2017
BUY
$95.87 - $106.55 $64.3 Million - $71.5 Million
671,147
671,147 $71.5 Million

Others Institutions Holding MPWR

# of Institutions
1,062
Shares Held
45.2M
Call Options Held
306K
Put Options Held
430K
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 $47.2B
  • 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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