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Proto Labs shares owned by Winton Capital

Quarter-by-quarter ownership of Proto Labs (PRLB) shares owned by Winton Capital from 13F filings

Historical chart of Winton Capital investment in Proto Labs

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All positions including Proto Labs held by Winton Capital consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Proto Labs by Winton Capital

Quarter filed Position value Share count Share price at filing
2026-03-31 $431k 7.6k 57.02
2025-03-31 $1.7M 48k 35.04
2018-12-31 $315k 2.8k 112.78
2018-09-30 $461k 2.8k 161.92

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Top funds holding Proto Labs

BlackRock
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Disciplined Growth Investors
Vanguard Portfolio Management
Dimensional Fund Advisors
State Street Corporation
Vanguard Capital Management
Luke P. La Valle, Jr.
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Rubric Capital Management
Arrowstreet Capital, Limited Partnership
Prudential Financial
Driehaus Capital Management
Charles Schwab Investment Management

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