Td Asset Management Inc reports 2.95% decrease in ownership of MPWR / Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.

MX ˙ BMV ˙ US6098391054

Security	MX:MPWR / Monolithic Power Systems, Inc.
Institution	Td Asset Management Inc
Latest Disclosed Ownership	72,110 shares
Latest Disclosed Value	$ 78,841,468

On May 11, 2026 - Td Asset Management Inc filed a 13F-HR form disclosing ownership of 72,110 shares of Monolithic Power Systems, Inc. (MX:MPWR) valued at $78,841,468 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 74,300 shares of Monolithic Power Systems, Inc.. This represents a change in shares of -2.95% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-11	2026-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	72,110	-2,190	-2.95	78,841	17.08	0.0342
2026-02-10	2025-12-31	13F	MONOLITHIC PWR SYS	COM	609839105	74,300	-328	-0.44	67,343	-1.98	0.0542
2025-11-10	2025-09-30	13F	MONOLITHIC PWR SYS	COM	609839105	74,628	-15,158	-16.88	68,706	4.63	0.0558
2025-07-28	2025-06-30	13F	MONOLITHIC PWR SYS	COM	609839105	89,786	50,005	125.70	65,668	184.62	0.0560
2025-05-07	2025-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	39,781	4,058	11.36	23,072	9.15	0.0212
2025-02-11	2024-12-31	13F	MONOLITHIC PWR SYS	COM	609839105	35,723	4,529	14.52	21,137	-26.74	0.0187
2024-11-01	2024-09-30	13F	MONOLITHIC PWR SYS	COM	609839105	31,194	7,324	30.68	28,854	47.12	0.0255
2024-08-02	2024-06-30	13F	MONOLITHIC PWR SYS	COM	609839105	23,870	2,350	10.92	19,614	34.54	0.0183
2024-05-08	2024-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	21,520	1,805	9.16	14,578	17.23	0.0136
2024-02-12	2023-12-31	13F	MONOLITHIC PWR SYS	COM	609839105	19,715	-114,898	-85.35	12,436	-80.01	0.0122
2023-10-27	2023-09-30	13F	MONOLITHIC PWR SYS	COM	609839105	134,613	-11,914	-8.13	62,191	-21.43	0.0753
2023-08-09	2023-06-30	13F	MONOLITHIC PWR SYS	COM	609839105	146,527	-14,709	-9.12	79,158	-1.92	0.0902
2023-05-10	2023-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	161,236	-20,193	-11.13	80,705	25.80	0.0974
2023-02-07	2022-12-31	13F	MONOLITHIC PWR SYS	COM	609839105	181,429	21,262	13.27	64,155	9.62	0.0792
2022-11-07	2022-09-30	13F	MONOLITHIC PWR SYS	COM	609839105	160,167	11,040	7.40	58,525	2.19	0.0733
2022-08-04	2022-06-30	13F	MONOLITHIC PWR SYS	COM	609839105	149,127	-10,218	-6.41	57,271	-26.00	0.0664
2022-05-10	2022-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	159,345	-49,571	-23.73	77,391	-24.91	0.0457
2022-02-10	2021-12-31	13F	MONOLITHIC PWR SYS	COM	609839105	208,916	21,253	11.33	103,065	13.31	0.0863
2021-11-09	2021-09-30	13F	MONOLITHIC PWR SYS	COM	609839105	187,663	3,222	1.75	90,957	9.77	0.0944
2021-08-11	2021-06-30	13F	MONOLITHIC PWR SYS	COM	609839105	184,441	34,310	22.85	82,862	56.26	0.0841
2021-05-14	2021-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	150,131	-21,683	-12.62	53,028	-15.73	0.0593
2021-02-16	2020-12-31	13F	MONOLITHIC PWR SYS	COM	609839105	171,814	37,199	27.63	62,923	67.17	0.0764
2020-11-10	2020-09-30	13F	MONOLITHIC PWR SYS	COM	609839105	134,615	-7,521	-5.29	37,640	11.74	0.0522
2020-08-13	2020-06-30	13F	MONOLITHIC PWR SYS	COM	609839105	142,136	41,006	40.55	33,686	98.91	0.0479
2020-05-15	2020-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	101,130	80,998	402.33	16,935	372.52	0.0287
2020-02-11	2019-12-31	13F	MONOLITHIC PWR SYS	COM	609839105	20,132	14,713	271.51	3,584	325.15	0.0052
2019-11-07	2019-09-30	13F	MONOLITHIC PWR SYS	COM	609839105	5,419	400	7.97	843	23.79	0.0013
2019-08-01	2019-06-30	13F	MONOLITHIC PWR SYS	COM	609839105	5,019	700	16.21	681	16.41	0.0010
2019-05-08	2019-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	4,319	-400	-8.48	585	6.56	0.0009
2019-02-01	2018-12-31	13F	MONOLITHIC PWR SYS	COM	609839105	4,719	500	11.85	549	3.58	0.0010
2018-11-01	2018-09-30	13F	MONOLITHIC PWR SYS	COM	609839105	4,219	1,500	55.17	530	46.01	0.0008
2018-07-31	2018-06-30	13F	MONOLITHIC PWR SYS	COM	609839105	2,719	-271	-9.06	363	4.91	0.0006
2018-05-11	2018-03-31	13F	MONOLITHIC PWR SYS	COM	609839105	2,990	2,990		346		0.0005

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.