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Nov 14, 2025 03:59PM Form SCHEDULE 13G/A Proto Labs Inc Filed by: DISCIPLINED GROWTH INVESTORS INC /MN
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Nov 8, 2024 02:19PM Form SC 13G/A Proto Labs Inc Filed by: BlackRock, Inc.
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Feb 9, 2023 11:41AM Form SC 13G/A Proto Labs Inc Filed by: VANGUARD GROUP INC
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Feb 10, 2022 08:43AM Form SC 13G/A Proto Labs Inc Filed by: VANGUARD GROUP INC
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Feb 16, 2021 04:41PM Form SC 13G/A Proto Labs Inc Filed by: ARK Investment Management LLC
Feb 16, 2021 04:29PM
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Jan 25, 2021 12:30PM Form SC 13G/A Proto Labs Inc Filed by: RIVERBRIDGE PARTNERS LLC
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Feb 14, 2019 09:50AM Form SC 13G/A Proto Labs Inc Filed by: BROWN CAPITAL MANAGEMENT LLC
Feb 12, 2019 11:59AM

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