Director John James Sullivan filed a Form 4 with the SEC on October 29, 2026, reporting a gift of 1,200 shares of Mesa Laboratories Inc common stock on October 13, 2026.

Key Highlights

  • Reporting person: John James Sullivan, Director at Mesa Laboratories Inc /CO/ (NASDAQ:MLAB)
  • Transaction: 1,200 shares of common stock disposed of via gift (transaction code G) at a price of $0 on October 13, 2026
  • Direct holdings after transaction: 19,418 shares of common stock held directly
  • Indirect holdings: 45,110 shares held indirectly through the Sullivan Family Trust, for which Sullivan's spouse serves as Trustee
  • Disclaimer: Sullivan disclaims beneficial ownership of the trust shares except to the extent of his pecuniary interest therein
  • Filing signed: John Sakys under Power of Attorney by John Sullivan, dated October 29, 2026

Sullivan's Gift Transaction and Beneficial Ownership at Mesa Laboratories

According to the filing, Director John James Sullivan disposed of 1,200 shares of Mesa Laboratories Inc common stock on October 13, 2026, via a gift transaction (code G) at a price of $0. Following this transaction, Sullivan directly owns 19,418 shares of Mesa Laboratories common stock, as reported in Table I of the Form 4.

The filing also discloses that Sullivan holds an additional 45,110 shares indirectly through the Sullivan Family Trust. According to the filing, the reporting person's spouse serves as Trustee of that trust, and Sullivan "disclaims beneficial ownership of the securities held by the trust except to the extent of his pecuniary interest therein." No derivative securities transactions were reported in Table II of this filing.

The Form 4 was filed pursuant to Section 16(a) of the Securities Exchange Act of 1934. It was signed by John Sakys under Power of Attorney by John Sullivan on October 29, 2026. The issuer is identified in the filing as Mesa Laboratories Inc /CO/, with the trading symbol MLAB on NASDAQ.

What Was Disclosed

Director John James Sullivan reported a gift disposal of 1,200 Mesa Laboratories common shares on October 13, 2026, at $0, leaving him with 19,418 shares directly and 45,110 shares indirectly through a family trust.