Arnon Rosenthal - Sep 22, 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 22, 2021
Transactions value $
-$2,774,755
Form type
4
Date filed
9/23/2021, 09:12 PM
Previous filing
Sep 22, 2021
Next filing
Oct 4, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALEC Common Stock Sale -$2.4M -94.7K -3.93% $25.29 2.32M Sep 22, 2021 See footnote F1, F2, F3
transaction ALEC Common Stock Sale -$138K -5.28K -0.23% $26.10 2.31M Sep 22, 2021 See footnote F1, F3, F4
transaction ALEC Common Stock Sale -$242K -9.63K -0.42% $25.10 2.3M Sep 23, 2021 See footnote F1, F3, F5
holding ALEC Common Stock 1.46M Sep 22, 2021 Direct
holding ALEC Common Stock 713K Sep 22, 2021 See footnote
holding ALEC Common Stock 713K Sep 22, 2021 See footnote
holding ALEC Common Stock 713K Sep 22, 2021 See footnote
* 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.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.98, 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 (1), (3) and (4) 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 $26.00 to $26.22, inclusive.
F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.26, inclusive.