PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

CULLEN/FROST BANKERS, INC.'s Holding History (CIK: 0000039263)

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

Q3 2021

Shares 273 Value ($000) $18 Avg Close $78.12 Range $66.51 - $93.66

Q2 2021

Shares 273 Value ($000) $25 Avg Close $98.50 Range $82.60 - $127.65

Q1 2021

Shares 169 Value ($000) $21 Avg Close $166.30 Range $109.17 - $286.57

Q4 2020

Shares 332 Value ($000) $51 Avg Close $141.05 Range $113.62 - $203.88

Q3 2020

Shares 332 Value ($000) $43 Avg Close $131.45 Range $106.69 - $164.99

Q2 2020

Shares 332 Value ($000) $37 Avg Close $102.64 Range $66.01 - $136.85

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	273	$18	$78.12	$66.51 - $93.66
Q2 2021	273	$25	$98.50	$82.60 - $127.65
Q1 2021	169	$21	$166.30	$109.17 - $286.57
Q4 2020	332	$51	$141.05	$113.62 - $203.88
Q3 2020	332	$43	$131.45	$106.69 - $164.99
Q2 2020	332	$37	$102.64	$66.01 - $136.85