Arnon Rosenthal - Oct 1, 2023 Form 4 Insider Report for Alector, Inc. (ALEC)

Role
Chief Executive Officer, Director
Signature
/s/ Marc Grasso, by power of attorney
Stock symbol
ALEC
Transactions as of
Oct 1, 2023
Transactions value $
$0
Form type
4
Date filed
10/3/2023, 06:10 PM
Previous filing
Sep 6, 2023
Next filing
Dec 6, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALEC Common Stock Award $0 +398K +24.16% $0.00 2.04M Oct 1, 2023 Direct F1
holding ALEC Common Stock 1.97M Oct 1, 2023 See footnote F2
holding ALEC Common Stock 653K Oct 1, 2023 See footnote F3
holding ALEC Common Stock 653K Oct 1, 2023 See footnote F4
holding ALEC Common Stock 653K Oct 1, 2023 See footnote F5

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ALEC Employee Stock Option (right to buy) Award $0 +133K $0.00 133K Oct 1, 2023 Common Stock 133K $6.48 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2023.
F2 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.
F3 The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
F4 The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
F5 The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
F6 Shares subject to the option vest in 48 equal monthly installments beginning on November 1, 2023.