Question 1

How many shares of MPWR does CONGRESS ASSET MANAGEMENT CO own?

Accepted Answer

As of 2026-Q1, CONGRESS ASSET MANAGEMENT CO holds 83,343 shares of MPWR (MONOLITHIC PWR SYS INC).

Question 2

What is CONGRESS ASSET MANAGEMENT CO's MPWR position worth?

Accepted Answer

As of 2026-Q1, CONGRESS ASSET MANAGEMENT CO's MPWR position is worth $91.1M.

Question 3

Is CONGRESS ASSET MANAGEMENT CO buying or selling MPWR?

Accepted Answer

In 2026-Q1, CONGRESS ASSET MANAGEMENT CO decreased their MPWR position (-8.1% change in shares).

Question 4

When did CONGRESS ASSET MANAGEMENT CO first buy MPWR?

Accepted Answer

Based on available 13F filings, CONGRESS ASSET MANAGEMENT CO first reported a position in MPWR in 2026-Q1. They have held the position across 29 quarters.