POWER SOLUTIONS INTL INC

Ticker: PSIX CUSIP: 73933G202 Class: Common Stock

NEXT CENTURY GROWTH INVESTORS LLC's Holding History (CIK: 0001134007)

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

Q2 2015

Shares 168,082 Value ($000) $9,079 Avg Close $58.85 Range $49.28 - $69.79

Q1 2015

Shares 307,837 Value ($000) $19,790 Avg Close $52.16 Range $40.83 - $66.61

Q4 2014

Shares 258,406 Value ($000) $13,336 Avg Close $59.33 Range $43.74 - $74.57

Q3 2014

Shares 166,251 Value ($000) $11,471 Avg Close $67.67 Range $58.03 - $79.50

Q2 2014

Shares 176,021 Value ($000) $12,668 Avg Close $76.82 Range $66.03 - $88.96

Q1 2014

Shares 240,897 Value ($000) $18,108 Avg Close $72.19 Range $56.53 - $87.40

Q4 2013

Shares 270,304 Value ($000) $20,299 Avg Close $65.56 Range $52.30 - $78.96

Q3 2013

Shares 296,606 Value ($000) $17,535 Avg Close $48.66 Range $33.00 - $59.26

Q2 2013

Shares 55,541 Value ($000) $1,865 Avg Close $31.25 Range $24.00 - $38.25

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	168,082	$9,079	$58.85	$49.28 - $69.79
Q1 2015	307,837	$19,790	$52.16	$40.83 - $66.61
Q4 2014	258,406	$13,336	$59.33	$43.74 - $74.57
Q3 2014	166,251	$11,471	$67.67	$58.03 - $79.50
Q2 2014	176,021	$12,668	$76.82	$66.03 - $88.96
Q1 2014	240,897	$18,108	$72.19	$56.53 - $87.40
Q4 2013	270,304	$20,299	$65.56	$52.30 - $78.96
Q3 2013	296,606	$17,535	$48.66	$33.00 - $59.26
Q2 2013	55,541	$1,865	$31.25	$24.00 - $38.25