POWER SOLUTIONS INTL INC

Ticker: PSIX CUSIP: 73933G202 Class: Common Stock

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 195,804 Value ($000) $19,232 Avg Close $88.67 Range $61.72 - $121.78

Q1 2025

Shares 296,442 Value ($000) $7,494 Avg Close $34.49 Range $24.51 - $45.74

Q4 2024

Shares 341,287 Value ($000) $10,153 Avg Close $25.65 Range $15.30 - $35.65

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	195,804	$19,232	$88.67	$61.72 - $121.78
Q1 2025	296,442	$7,494	$34.49	$24.51 - $45.74
Q4 2024	341,287	$10,153	$25.65	$15.30 - $35.65