Vanguard Capital Management Acquires 5.1% Stake in Proto Labs Inc (PRLB)

Vanguard Capital Management LLC filed a Schedule 13G on April 30, 2026, reporting a new 5.1% ownership stake in Proto Labs Inc (PRLB). As of the event date of March 31, 2026, Vanguard beneficially owns 1,213,755 shares of common stock. The filing indicates that Vanguard holds sole dispositive power over all 1,213,755 shares and sole voting power over 174,014 shares. This position represents a significant increase from a previous 0% holding, crossing the 5% regulatory threshold. The filing includes shares held by various Vanguard affiliates, including Vanguard Asset Management Limited and Vanguard Global Advisers, LLC. The securities were acquired in the ordinary course of business and not for the purpose of influencing or changing control of the issuer. Vanguard is headquartered in Malvern, Pennsylvania, and operates as an investment adviser. No other single person's interest in these securities is reported to exceed 5%.