Monolithic Power Systems, Inc.
US ˙ NasdaqGS ˙ US6098391054

SecurityMPWR / Monolithic Power Systems, Inc.
InstitutionKestra Advisory Services, LLC
Latest Disclosed Ownership1,398 shares
Latest Disclosed Value $ 1,528,211
Kestra Advisory Services, LLC reports 27.53% decrease in ownership of MPWR / Monolithic Power Systems, Inc.

On April 30, 2026 - Kestra Advisory Services, LLC filed a 13F-HR form disclosing ownership of 1,398 shares of Monolithic Power Systems, Inc. (US:MPWR) valued at $1,528,503 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,929 shares of Monolithic Power Systems, Inc.. This represents a change in shares of -27.53% during the quarter. The current value of the position is $2,070,508 USD.

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)
2026-04-30 2026-03-31 13F MONOLITHIC PWR SYS COM 609839105 1,398 -531 -27.53 1,528 -12.59 0.0058
2026-02-13 2025-12-31 13F MONOLITHIC PWR SYS COM 609839105 1,929 -31 -1.58 1,748 -3.10 0.0072
2025-11-14 2025-09-30 13F MONOLITHIC PWR SYS COM 609839105 1,960 -607 -23.65 1,804 -3.89 0.0083
2025-08-15 2025-06-30 13F MONOLITHIC PWR SYS COM 609839105 2,567 964 60.14 1,877 102.05 0.0091
2025-05-14 2025-03-31 13F MONOLITHIC PWR SYS COM 609839105 1,603 -967 -37.63 930 -38.88 0.0045
2025-02-10 2024-12-31 13F MONOLITHIC PWR SYS COM 609839105 2,570 -124 -4.60 1,521 -38.96 0.0083
2024-11-13 2024-09-30 13F MONOLITHIC PWR SYS COM 609839105 2,694 -334 -11.03 2,490 2.60 0.0137
2024-08-14 2024-06-30 13F MONOLITHIC PWR SYS COM 609839105 3,028 456 17.73 2,427 39.32 0.0136
2024-05-15 2024-03-31 13F MONOLITHIC PWR SYS COM 609839105 2,572 118 4.81 1,742 12.53 0.0117
2024-02-14 2023-12-31 13F MONOLITHIC PWR SYS COM 609839105 2,454 966 64.92 1,548 125.33 0.0125
2023-11-13 2023-09-30 13F MONOLITHIC PWR SYS COM 609839105 1,488 -131 -8.09 687 -21.40 0.0068
2023-08-11 2023-06-30 13F MONOLITHIC PWR SYS COM 609839105 1,619 243 17.66 875 27.03 0.0088
2023-05-12 2023-03-31 13F MONOLITHIC PWR SYS COM 609839105 1,376 -1,757 -56.08 689 -37.85 0.0075
2023-01-31 2022-12-31 13F MONOLITHIC PWR SYS COM 609839105 3,133 401 14.68 1,108 0.0098
2022-11-01 2022-09-30 13F/A-1 MONOLITHIC PWR SYS COM 609839105 2,732 594 27.78 1 0.0106
2022-11-01 2022-09-30 13F MONOLITHIC PWR SYS COM 609839105 2,732 594 993 0.0106
2022-08-12 2022-06-30 13F MONOLITHIC PWR SYS COM 609839105 2,138 303 16.51 1 0.0084
2022-07-20 2022-03-31 13F/A-1 MONOLITHIC PWR SYS COM 609839105 1,835 174 10.48 1 -100.00 0.0093
2022-04-26 2022-03-31 13F MONOLITHIC PWR SYS COM 609839105 1,835 174 891 0.0093
2022-07-25 2021-12-31 13F/A-1 MONOLITHIC PWR SYS COM 609839105 1,661 -624 -27.31 1 -100.00 0.0083
2022-01-20 2021-12-31 13F MONOLITHIC PWR SYS COM 609839105 1,661 -624 820 0.0083
2022-07-25 2021-09-30 13F/A-1 MONOLITHIC PWR SYS COM 609839105 2,285 888 63.56 1 -99.81 0.0111
2021-10-19 2021-09-30 13F MONOLITHIC PWR SYS COM 609839105 2,285 888 1,108 0.0111
2022-07-26 2021-06-30 13F/A-1 MONOLITHIC PWR SYS COM 609839105 1,397 5 0.36 1 -100.00 0.0059
2021-07-28 2021-06-30 13F MONOLITHIC PWR SYS COM 609839105 1,397 5 522 0.0059
2022-07-27 2021-03-31 13F/A-1 MONOLITHIC PWR SYS COM 609839105 1,392 1,392 0 0.0062
2021-05-10 2021-03-31 13F MONOLITHIC PWR SYS COM 609839105 1,392 1,392 492 0.0062
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.