MPWR — MONOLITHIC PWR SYS INC

Ownership history in Caitlin John, LLC  ·  6 quarters on record

This page tracks every 13F SEC filing in which Caitlin John, LLC reported a position in MONOLITHIC PWR SYS INC (MPWR). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.75% (2025 Q4)
Avg. % of fund
0.3%
First filed
2023 Q4
Last filed
2025 Q4
Quarters held
6
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 1,264 +793 +168.4% 0.75% $1.1M $906.36
2025 Q3 REDUCED 471 -13 -2.7% 0.30% $434K $919.09
2025 Q2 ADDED 484 +437 +929.8% 0.32% $354K $728.86
2024 Q4 UNCHANGED 47 — 0% 0.02% $28K $586.83
2024 Q3 REDUCED 47 -717 -93.8% 0.02% $28K $914.99
2023 Q4 INITIATED 764 — — 0.39% $483K —
% of Fund (quarterly)    MPWR price (monthly, adj. close)

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%
← Back to Caitlin John, LLC Holdings