Arnon Rosenthal - Sep 20, 2021 Form 4 Insider Report for Alector, Inc. (ALEC)

Role
Chief Executive Officer, Director
Signature
/s/ David Oh, by power of attorney
Stock symbol
ALEC
Transactions as of
Sep 20, 2021
Transactions value $
-$5,191,827
Form type
4
Date filed
9/22/2021, 04:54 PM
Previous filing
May 11, 2021
Next filing
Sep 23, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALEC Common Stock Sale -$2.37M -92K -3.52% $25.76 2.52M Sep 20, 2021 See footnote F1, F2, F3
transaction ALEC Common Stock Sale -$212K -8.05K -0.32% $26.33 2.51M Sep 20, 2021 See footnote F1, F3, F4
transaction ALEC Common Stock Sale -$2.39M -91.5K -3.64% $26.07 2.42M Sep 21, 2021 See footnote F1, F3, F5
transaction ALEC Common Stock Sale -$225K -8.46K -0.35% $26.56 2.41M Sep 21, 2021 See footnote F1, F3, F6
holding ALEC Common Stock 1.46M Sep 20, 2021 Direct
holding ALEC Common Stock 713K Sep 20, 2021 See footnote F7
holding ALEC Common Stock 713K Sep 20, 2021 See footnote F8
holding ALEC Common Stock 713K Sep 20, 2021 See footnote F9
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2021.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.25 to $26.17, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (4) through (6) to this Form 4.
F3 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.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.28 to $26.43, inclusive.
F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.50 to $26.49, inclusive.
F6 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.50 to $26.64, inclusive.
F7 The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
F8 The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.
F9 The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee.