Abiopharma

🔍 Rosenthal Arnon (Executive)

Company: Alector, Inc. (ALEC)

Report Date: 2025-09-02

Detailed Transactions and Holdings:

• Sold 51,562 shares of Common Stock at $2.4968 per share (Direct)
  Date: 2025-09-02 | Code: S | equity_swap_involved: 0 | shares_owned_after: 2,350,220.00 | transaction_form_type: 4 | Footnotes: F1, F2, F3
• Holds 0 shares of Common Stock (Direct)
  Date: 2025-09-02 | Code: H | nature_of_ownership: See footnote | shares_owned_after: 1,972,875.00 | Footnotes: F4
• Holds 0 shares of Common Stock (Direct)
  Date: 2025-09-02 | Code: H | nature_of_ownership: See footnote | shares_owned_after: 652,500.00 | Footnotes: F5
• Holds 0 shares of Common Stock (Direct)
  Date: 2025-09-02 | Code: H | nature_of_ownership: See footnote | shares_owned_after: 652,500.00 | Footnotes: F6
• Holds 0 shares of Common Stock (Direct)
  Date: 2025-09-02 | Code: H | nature_of_ownership: See footnote | shares_owned_after: 652,500.00 | Footnotes: F7

Footnotes:

• F1: The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units, or RSUs.
• F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.30 to $2.59. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff, the issuer, or any security holder of the issuer upon request.
• F3: The reported amount excludes 150,000 shares previously reported as performance share units, or PSUs. Because the performance metrics were not attained during the PSU measurement period, these PSUs were forfeited on May 6, 2025.
• F4: The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee.
• F5: The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
• F6: The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
• F7: The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.