MPWR — MONOLITHIC PWR SYS INC

Ownership history in EVENTIDE ASSET MANAGEMENT, LLC  ·  22 quarters on record

AI Ownership Summary

EVENTIDE ASSET MANAGEMENT, LLC reported MONOLITHIC PWR SYS INC (MPWR) in 22 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 1.5% in 2024 Q3. The latest visible filing shows MPWR at 0.97% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this MPWR ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was EVENTIDE ASSET MANAGEMENT, LLC's position in MONOLITHIC PWR SYS INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

MPWR was reported at 0.97% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.5% in 2024 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

MPWR stock page EVENTIDE ASSET MANAGEMENT, LLC fund profile EVENTIDE ASSET MANAGEMENT, LLC full holdings
How EVENTIDE ASSET MANAGEMENT, LLC held MPWR — position size vs. price
% of Fund (quarterly)    MPWR price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 9 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 ADDED 68,373 +27,131 +65.8% 0.97% $62.0M 2026-02-14 (Est.) $1171.47
2025 Q3 REDUCED 41,242 -1,057 -2.5% 0.62% $38.0M 2025-11-14 $918.64
2025 Q2 ADDED 42,299 +68 +0.2% 0.54% $30.9M 2025-08-14 $845.89
2025 Q1 ADDED 42,231 +24 +0.1% 0.49% $24.5M 2025-05-15 $706.37
2024 Q4 REDUCED 42,207 -51,662 -55.0% 0.45% $25.0M 2025-02-14 $679.29
2024 Q3 REDUCED 93,869 -4,734 -4.8% 1.50% $86.8M 2024-11-14 $570.86
2024 Q2 ADDED 98,603 +34 +0.0% 1.39% $81.0M 2024-08-13 $857.72
2024 Q1 ADDED 98,569 +236 +0.2% 1.05% $66.8M 2024-05-15 $731.59
2023 Q4 ADDED 98,333 +9 +0.0% 1.01% $62.0M 2024-02-14 $734.00
13 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding MPWR

As of 2025 Q4 — sorted by position size

Grandeur Peak Global Advisors, LLC 3Y 7Y 8.84% Pembroke Management, LTD 3Y 7Y 4.98% Avalon Global Asset Management LLC 3Y 7Y 3.3% Analog Century Management LP 3Y 3.15% ARCADIA INVESTMENT MANAGEMENT CORP/MI 3Y 7Y 2.97% FNY Investment Advisers, LLC 3Y 7Y 2.69% CARDEROCK CAPITAL MANAGEMENT INC 3Y 7Y 2.52% Meridiem Capital Partners LP 2.34% VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 3Y 7Y 2.28% OSTRUM ASSET MANAGEMENT 3Y 7Y 2.04%

FAQ About EVENTIDE ASSET MANAGEMENT, LLC and MPWR

These are the practical questions this page is built to answer before you even open the full history table.

How long has EVENTIDE ASSET MANAGEMENT, LLC reported owning MPWR?

EVENTIDE ASSET MANAGEMENT, LLC reported MPWR across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported MPWR position in EVENTIDE ASSET MANAGEMENT, LLC's portfolio?

The largest reported portfolio weight for MPWR was 1.50% in 2024 Q3.

What is the latest reported MPWR position on this page?

The most recent filing on this page is 2025 Q4, when EVENTIDE ASSET MANAGEMENT, LLC reported 68,373 shares, equal to 0.97% of portfolio, with an estimated market value of $62.0M.

What does the chart on this MPWR ownership page compare?

The chart compares EVENTIDE ASSET MANAGEMENT, LLC's quarterly MPWR portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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