Aubree Barnum, VP of Human Resources at Lithium Americas Corp., filed a Form 4 on October 26, 2026, reporting the vesting and conversion of 11,417 restricted share units into common shares on October 24, 2026.

Key Highlights

  • Reporting person: Aubree Barnum, VP, Human Resources at Lithium Americas Corp. (NYSE:LAC)
  • Transaction date: October 24, 2026, transaction code M (exercise/conversion)
  • RSUs converted: 11,417 restricted share units acquired and converted to common shares at a derivative price of $0
  • Direct beneficial ownership after transaction: 110,511 common shares held directly
  • Indirect holdings: 24 common shares held indirectly by spouse
  • RSU grant origin: Part of a grant of 57,085 RSUs made on October 24, 2023, vesting 1/5 annually commencing October 24, 2023
  • Remaining RSUs: 11,417 RSUs still beneficially owned following the reported transaction

Barnum's October 2026 RSU Vesting at Lithium Americas

According to the Form 4 filed with the SEC on October 26, 2026, Aubree Barnum, who serves as VP, Human Resources of Lithium Americas Corp. (NYSE:LAC), reported the vesting of 11,417 restricted share units on October 24, 2026. The filing indicates that each RSU "represents a contingent right to receive one share of the Issuer's common stock," and the transaction was coded M, denoting a conversion or exercise of a derivative security.

The filing discloses that the converted RSUs originated from a grant of 57,085 RSUs made on October 24, 2023, which vest at a rate of one-fifth annually beginning on October 24, 2023. The derivative security price associated with the conversion is listed as $0. Following the transaction, Barnum directly holds 110,511 common shares, with an additional 24 common shares held indirectly by a spouse. The filing also notes that 11,417 RSUs remain beneficially owned directly following the reported transaction.

The Form 4 was signed by Tereza Fonda as attorney-in-fact for Aubree Barnum and filed on October 26, 2026. No transaction pursuant to a Rule 10b5-1 plan was indicated in the filing.

What Was Disclosed

The filing reported the vesting of 11,417 RSUs into common shares by Lithium Americas VP of Human Resources Aubree Barnum on October 24, 2026, resulting in direct ownership of 110,511 common shares and 11,417 RSUs remaining.