Proto Labs Inc. Q3 2021 Earnings Presentation October 28, 2021 Proto Labs Inc. Q2 2021 Earnings Presentation July 29, 2021 Proto Labs Inc. Q1 2021 Earnings Presentation May 5, 2021 Proto Labs Inc. Q4 2020 Earnings Presentation February 12, 2021 Proto Labs Inc. Q3 2020 Earnings Presentation October 29, 2020 Proto Labs Inc. Q2 2020 Earnings Presentation July 28, 2020 Proto Labs Inc. Q1 2020 Earnings Presentation April 30, 2020 Proto Labs Inc. Q4 2019 Earnings Presentation February 6, 2020 Proto Labs Inc. Q3 2019 Earnings Presentation October 24, 2019