Vanguard Group Inc's 13G/A Filing for Mesa Laboratories Inc

The Vanguard Group Inc has filed a Schedule 13G/A amendment with the SEC, reporting its ownership of 321,717 shares of Mesa Laboratories Inc's common stock, representing 5.84% of the total shares outstanding. The filing indicates that Vanguard Group Inc holds these shares on behalf of its clients, including investment companies and managed accounts. The shares are held in the ordinary course of business and not for the purpose of influencing the control of the issuer. The filing also confirms that no single client owns more than 5% of the shares. The amendment was signed by Ashley Grim, Head of Global Fund Administration, on October 31, 2025.