144
0001415033
XXXXXXXX
LIVE
0001280452
MONOLITHIC POWER SYSTEMS, INC.
000-51026
1555 Palm Beach Lakes Blvd.
West Palm Beach
FL
33401
(561) 839-3999
THEODORE BERNHARD BLEGEN
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
3000
3343033.50
49118000
04/01/2026
NASDAQ
Common
01/01/2024
Performance Shares
ISSUER
N
3000
01/01/2024
Not Applicable
N
THEODORE BERNHARD BLEGEN
1555 Palm Beach Lakes Blvd.
West Palm Beach
FL
33401
Common
03/02/2026
3000
3349516.50
THEODORE BERNHARD BLEGEN
1555 Palm Beach Lakes Blvd.
West Palm Beach
FL
33401
Common
02/06/2026
21725
25443531.38
THEODORE BERNHARD BLEGEN
1555 Palm Beach Lakes Blvd.
West Palm Beach
FL
33401
Common
02/02/2026
3000
3389269.80
THEODORE BERNHARD BLEGEN
1555 Palm Beach Lakes Blvd.
West Palm Beach
FL
33401
Common
01/02/2026
3000
2821403.10
04/01/2026
02/26/2025
/s/ Theodore Bernhard Blegen