POWER SOLUTIONS INTL INC

Ticker: PSIX CUSIP: 73933G202 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2016

Shares 949,914 Value ($000) $7,125 Avg Close $10.96 Range $7.39 - $14.91

Q3 2016

Shares 1,030,104 Value ($000) $10,559 Avg Close $14.35 Range $10.16 - $20.97

Q2 2016

Shares 1,055,714 Value ($000) $18,844 Avg Close $14.63 Range $10.00 - $19.50

Q1 2016

Shares 1,240,860 Value ($000) $17,124 Avg Close $11.92 Range $7.63 - $19.52

Q4 2015

Shares 1,165,880 Value ($000) $21,277 Avg Close $21.57 Range $16.75 - $28.92

Q3 2015

Shares 678,680 Value ($000) $15,413 Avg Close $36.50 Range $22.09 - $54.44

Q2 2015

Shares 502,520 Value ($000) $27,146 Avg Close $58.85 Range $49.28 - $69.79

Q1 2015

Shares 257,320 Value ($000) $16,543 Avg Close $52.16 Range $40.83 - $66.61

Q4 2014

Shares 84,200 Value ($000) $4,346 Avg Close $59.33 Range $43.74 - $74.57

Q1 2014

Shares 2,698 Value ($000) $203 Avg Close $72.19 Range $56.53 - $87.40

Q2 2013

Shares 264,023 Value ($000) $8,869 Avg Close $31.25 Range $24.00 - $38.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2016	949,914	$7,125	$10.96	$7.39 - $14.91
Q3 2016	1,030,104	$10,559	$14.35	$10.16 - $20.97
Q2 2016	1,055,714	$18,844	$14.63	$10.00 - $19.50
Q1 2016	1,240,860	$17,124	$11.92	$7.63 - $19.52
Q4 2015	1,165,880	$21,277	$21.57	$16.75 - $28.92
Q3 2015	678,680	$15,413	$36.50	$22.09 - $54.44
Q2 2015	502,520	$27,146	$58.85	$49.28 - $69.79
Q1 2015	257,320	$16,543	$52.16	$40.83 - $66.61
Q4 2014	84,200	$4,346	$59.33	$43.74 - $74.57
Q1 2014	2,698	$203	$72.19	$56.53 - $87.40
Q2 2013	264,023	$8,869	$31.25	$24.00 - $38.25