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4//SEC Filing

Rosenthal Arnon 4

Accession 0001415889-25-023670

CIK 0001653087other

Filed

Sep 3, 8:00 PM ET

Accepted

Sep 4, 4:27 PM ET

Size

9.3 KB

Accession

0001415889-25-023670

Insider Transaction Report

Form 4
Period: 2025-09-02
Rosenthal Arnon
DirectorChief Executive Officer
Transactions
  • Sale

    Common Stock

    2025-09-02$2.50/sh51,562$128,7402,350,220 total
Holdings
  • Common Stock

    (indirect: See footnote)
    1,972,875
  • Common Stock

    (indirect: See footnote)
    652,500
  • Common Stock

    (indirect: See footnote)
    652,500
  • Common Stock

    (indirect: See footnote)
    652,500
Footnotes (7)
  • [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.

Issuer

Alector, Inc.

CIK 0001653087

Entity typeother

Related Parties

1
  • filerCIK 0001757770

Filing Metadata

Form type
4
Filed
Sep 3, 8:00 PM ET
Accepted
Sep 4, 4:27 PM ET
Size
9.3 KB