BlackRock, Inc.

Holdings History for MONOLITHIC POWER SYSTEMS INC - COMMON STOCK (MPWR)

Symbol: MPWR on Nasdaq
Investment type: Equity / COMMON STOCK
Latest Disclosed Shares Owned: 4,899,383 shares
Security Ownership %: 10%

Shares, Excluding Options vs Price

Value, Excluding Options

BlackRock, Inc. ownership in MONOLITHIC POWER SYSTEMS INC COMMON STOCK (MPWR)

08 Jan 2026 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,899,383 shares of MONOLITHIC POWER SYSTEMS INC COMMON STOCK (MPWR). This represents 10% ownership of the company. In their previous filing dated 17 Apr 2025, BlackRock, Inc. had reported owning 4,674,772 shares, indicating an increase of +4.8%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
BlackRock, Inc.	10%	+4%	$4,440,605,266	4,899,383	+224,611	+4.8%	$906.36	13G/A	31 Dec 2025	08 Jan 2026, 13:28
BlackRock, Inc.	9.8%		$2,714,873,839	4,674,772			$580.75	13G/A	31 Mar 2025	17 Apr 2025, 18:50
BlackRock, Inc.	9.8%		$2,711,278,004	4,674,772			$579.98	13G/A	31 Mar 2025	17 Apr 2025, 09:35

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	0.09%	+0%	$5,404,072,656	5,962,391	+235,617	+4.1%	$906.36	Q4 2025
30 Sep 2025	0.09%	+0.01%	$5,272,297,648	5,726,774	+497,553	+9.5%	$920.64	Q3 2025
30 Jun 2025	0.07%	+0%	$3,824,548,048	5,229,221	+316,313	+6.4%	$731.38	Q2 2025
31 Mar 2025	0.06%	-0.01%	$2,849,388,120	4,912,908	-509,319	-9.4%	$579.98	Q1 2025
31 Dec 2024	0.07%	-0%	$3,208,331,564	5,422,227	-381,736	-6.6%	$591.70	Q4 2024
30 Sep 2024	0.11%	0%	$5,365,763,616	5,803,963	0		$924.50	Q3 2024

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.