Westwood Holdings Group Inc Monolithic Power Systems Inc Transaction History

Westwood Holdings Group Inc

$13 Billion
Q3 2025

A detailed history of Westwood Holdings Group Inc transactions in Monolithic Power Systems Inc stock. As of the latest transaction made, Westwood Holdings Group Inc holds 19,815 shares of MPWR stock, worth $18.2 Million. This represents 0.14% of its overall portfolio holdings.

Number of Shares

19,815

Previous 10,558 87.68%

Holding current value

$18.2 Million

Previous $7.72 Million 136.26%

% of portfolio

0.14%

Previous 0.06%

27 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$711.24 - $922.81 $6.58 Million - $8.54 Million	9,257 Added 87.68%	19,815 $18.2 Million
Q2 2025 Aug 08, 2025	BUY	$455.19 - $737.73 $41,422 - $67,133	91 Added 0.87%	10,558 $7.72 Million
Q4 2024 Feb 14, 2025	SELL	$560.06 - $942.58 $18,481 - $31,105	-33 Reduced 0.31%	10,467 $6.19 Million
Q3 2024 Nov 14, 2024	SELL	$757.04 - $947.16 $3,785 - $4,735	-5 Reduced 0.05%	10,500 $9.71 Million
Q2 2024 Aug 13, 2024	SELL	$591.52 - $852.56 $1.36 Million - $1.96 Million	-2,297 Reduced 17.94%	10,505 $8.63 Million

Q1 2024 May 14, 2024	SELL	$571.06 - $767.6 $39,974 - $53,732	-70 Reduced 0.54%	12,802 $8.67 Million
Q3 2023 Nov 14, 2023	BUY	$440.38 - $588.72 $686,992 - $918,403	1,560 Added 13.79%	12,872 $5.95 Million
Q2 2023 Aug 11, 2023	SELL	$398.61 - $540.23 $76,533 - $103,724	-192 Reduced 1.67%	11,312 $6.11 Million
Q1 2023 May 12, 2023	SELL	$342.95 - $530.09 $162,901 - $251,792	-475 Reduced 3.97%	11,504 $5.76 Million
Q4 2022 Feb 14, 2023	SELL	$309.2 - $405.03 $49,781 - $65,209	-161 Reduced 1.33%	11,979 $4.24 Million
Q3 2022 Nov 14, 2022	SELL	$363.4 - $536.88 $46,515 - $68,720	-128 Reduced 1.04%	12,140 $4.41 Million
Q2 2022 Aug 15, 2022	BUY	$384.04 - $479.19 $16,129 - $20,125	42 Added 0.34%	12,268 $4.71 Million
Q1 2022 May 12, 2022	SELL	$361.12 - $512.21 $1.07 Million - $1.52 Million	-2,967 Reduced 19.53%	12,226 $5.94 Million
Q4 2021 Feb 25, 2022	BUY	$460.83 - $575.97 $17,050 - $21,310	37 Added 0.24%	15,193 $7.5 Million
Q3 2021 Nov 12, 2021	SELL	$370.18 - $517.92 $970,982 - $1.36 Million	-2,623 Reduced 14.75%	15,156 $7.35 Million
Q2 2021 Aug 16, 2021	BUY	$306.1 - $389.53 $576,692 - $733,874	1,884 Added 11.85%	17,779 $6.64 Million
Q1 2021 May 14, 2021	SELL	$302.05 - $403.18 $3.98 Million - $5.31 Million	-13,182 Reduced 45.33%	15,895 $5.61 Million
Q4 2020 Apr 13, 2021	BUY	$272.37 - $366.23 $4,357 - $5,859	16 Added 0.06%	29,077 $10.6 Million
Q4 2020 Feb 12, 2021	SELL	$272.37 - $366.23 $5.63 Million - $7.57 Million	-20,682 Reduced 41.58%	29,061 $10.6 Million
Q3 2020 Nov 10, 2020	SELL	$235.55 - $282.85 $5.76 Million - $6.91 Million	-24,433 Reduced 32.94%	49,743 $13.9 Million
Q2 2020 Aug 13, 2020	SELL	$153.42 - $237.0 $14.3 Million - $22 Million	-92,930 Reduced 55.61%	74,176 $17.6 Million
Q1 2020 May 15, 2020	SELL	$135.22 - $191.43 $7.77 Million - $11 Million	-57,466 Reduced 25.59%	167,106 $28 Million
Q4 2019 Feb 14, 2020	SELL	$135.15 - $182.89 $17.4 Million - $23.5 Million	-128,623 Reduced 36.42%	224,572 $40 Million
Q3 2019 Nov 14, 2019	BUY	$136.01 - $161.55 $29.7 Million - $35.3 Million	218,317 Added 161.86%	353,195 $55 Million
Q2 2019 Aug 14, 2019	SELL	$116.45 - $157.53 $1.24 Million - $1.68 Million	-10,656 Reduced 7.32%	134,878 $18.3 Million
Q1 2019 May 13, 2019	SELL	$108.61 - $145.01 $1.53 Million - $2.05 Million	-14,109 Reduced 8.84%	145,534 $19.7 Million
Q4 2018 Feb 14, 2019	BUY	$104.17 - $134.73 $16.6 Million - $21.5 Million	159,643 New	159,643 $18.6 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

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...

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Westwood Holdings Group Inc Monolithic Power Systems Inc Transaction History