Monolithic Power Systems, Inc.
MX ˙ BMV ˙ US6098391054
SecurityMX:MPWR / Monolithic Power Systems, Inc.
InstitutionNicolet Advisory Services, Llc
Latest Disclosed Ownership1,137 shares
Latest Disclosed Value $ 1,099,759
Nicolet Advisory Services, Llc reports 12.27% decrease in ownership of MPWR / Monolithic Power Systems, Inc.

On February 13, 2026 - Nicolet Advisory Services, Llc filed a 13F-HR form disclosing ownership of 1,137 shares of Monolithic Power Systems, Inc. (MX:MPWR) valued at $1,099,759 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,296 shares of Monolithic Power Systems, Inc.. This represents a change in shares of -12.27% 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)
2026-02-13 2025-12-31 13F MONOLITHIC PWR SYS COM 609839105 1,137 -159 -12.27 1,100 -10.29 0.0741
2025-11-13 2025-09-30 13F MONOLITHIC PWR SYS COM 609839105 1,296 73 5.97 1,225 27.60 0.0953
2025-08-13 2025-06-30 13F MONOLITHIC PWR SYS COM 609839105 1,223 231 23.29 961 100.00 0.0818
2025-05-08 2025-03-31 13F MONOLITHIC PWR SYS COM 609839105 992 -48 -4.62 481 -21.82 0.0477
2025-02-12 2024-12-31 13F MONOLITHIC PWR SYS COM 609839105 1,040 65 6.67 615 -31.70 0.0565
2024-11-12 2024-09-30 13F MONOLITHIC PWR SYS COM 609839105 975 -102 -9.47 900 -3.02 0.0849
2024-08-14 2024-06-30 13F MONOLITHIC PWR SYS COM 609839105 1,077 271 33.62 927 68.85 0.0888
2024-05-10 2024-03-31 13F MONOLITHIC PWR SYS COM 609839105 806 321 66.19 550 97.48 0.0558
2024-02-13 2023-12-31 13F MONOLITHIC PWR SYS COM 609839105 485 485 278 0.0299
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.