Monolithic Power Systems, Inc.
MX ˙ BMV ˙ US6098391054
SecurityMX:MPWR / Monolithic Power Systems, Inc.
InstitutionVirtue Capital Management, LLC
Latest Disclosed Ownership264 shares
Latest Disclosed Value $ 264,618
Virtue Capital Management, LLC reports 29.60% decrease in ownership of MPWR / Monolithic Power Systems, Inc.

On May 7, 2026 - Virtue Capital Management, LLC filed a 13F-HR form disclosing ownership of 264 shares of Monolithic Power Systems, Inc. (MX:MPWR) valued at $264,618 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 18, 2026 disclosing 375 shares of Monolithic Power Systems, Inc.. This represents a change in shares of -29.60% 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 Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F MONOLITHIC PWR SYS COM 609839105 264 -111 -29.60 265 -24.79 0.0401
2026-02-18 2025-12-31 13F/A-1 MONOLITHIC PWR SYS COM 609839105 375 -569 -60.28 351 -59.56 0.0541
2026-02-12 2025-12-31 13F MCKESSON COM 609839105 1,431 915 1,178
2026-02-18 2025-09-30 13F/A-1 MONOLITHIC PWR SYS COM 609839105 944 368 63.89 869 106.18 0.1384
2025-10-31 2025-09-30 13F MCKESSON COM 609839105 516 -60 475 0.0757
2025-08-13 2025-06-30 13F MONOLITHIC PWR SYS COM 609839105 576 81 16.36 421 47.20 0.0775
2025-05-15 2025-03-31 13F MONOLITHIC PWR SYS COM 609839105 495 -81 -14.06 287 -15.88 0.0335
2025-02-26 2024-12-31 13F MONOLITHIC PWR SYS COM 609839105 576 34 6.27 341 -32.14 0.0686
2024-11-18 2024-09-30 13F MONOLITHIC PWR SYS COM 609839105 542 -4 -0.73 501 8.68 0.1003
2024-08-13 2024-06-30 13F MONOLITHIC POWER SYS COM 609839105 546 -31 -5.37 461 20.05 0.0790
2024-05-15 2024-03-31 13F MONOLITHIC POWER SYS COM 609839105 577 -48 -7.68 384 7.26 0.0690
2024-02-15 2023-12-31 13F MONOLITHIC POWER SYS COM 609839105 625 -90 -12.59 358 -4.28 0.0726
2023-11-14 2023-09-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 715 0 0.00 374 0.00 0.0637
2023-07-18 2023-06-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 715 -227 -24.10 374 -12.41 0.0638
2023-05-11 2023-03-31 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 942 -150 -13.74 428 10.62 0.0700
2023-02-10 2022-12-31 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 1,092 1,092 386 0.0589
2022-08-10 2022-06-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 0 -3,561 -100.00 0 -100.00
2022-05-16 2022-03-31 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 3,561 -549 -13.36 1,730 -14.69 0.2726
2022-01-24 2021-12-31 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 4,110 510 14.17 2,028 16.22 0.2992
2021-11-12 2021-09-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 3,600 -431 -10.69 1,745 15.95 0.3090
2021-07-15 2021-06-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 4,031 180 4.67 1,505 10.66 0.3006
2021-05-13 2021-03-31 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 3,851 205 5.62 1,360 1.87 0.3200
2021-02-16 2020-12-31 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 3,646 -850 -18.91 1,335 6.21 0.3274
2020-11-16 2020-09-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 4,496 -566 -11.18 1,257 4.75 0.3095
2020-08-10 2020-06-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 5,062 5,062 1,200 0.2768
2020-05-13 2020-03-31 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 0 -3,817 -100.00 0 -100.00
2020-02-14 2019-12-31 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 3,817 806 26.77 680 44.99 0.1961
2019-11-12 2019-09-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 3,011 1,045 53.15 469 75.66 0.1547
2019-11-12 2019-06-30 13F MONOLITHIC POWER SYSTEM INC COM COM 609839105 1,966 1,966 267 0.0971
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.