PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

FIRST MANHATTAN CO. LLC.'s Holding History (CIK: 0000728083)

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

Q4 2021

Shares 17 Value ($000) $0 Avg Close $59.00 Range $47.57 - $79.27

Q3 2021

Shares 17 Value ($000) $1 Avg Close $78.12 Range $66.51 - $93.66

Q3 2013

Shares 3,600 Value ($000) $275 Avg Close $69.23 Range $61.46 - $80.66

Q2 2013

Shares 3,600 Value ($000) $233 Avg Close $53.72 Range $43.62 - $67.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	17	$0	$59.00	$47.57 - $79.27
Q3 2021	17	$1	$78.12	$66.51 - $93.66
Q3 2013	3,600	$275	$69.23	$61.46 - $80.66
Q2 2013	3,600	$233	$53.72	$43.62 - $67.40