Robert Paul - May 18, 2021 Form 4 Insider Report for Alector, Inc. (ALEC)

Role
Chief Medical Officer
Signature
/s/ David Oh, attorney-in-fact
Stock symbol
ALEC
Transactions as of
May 18, 2021
Transactions value $
-$38,940
Form type
4
Date filed
5/20/2021, 05:20 PM
Previous filing
May 11, 2021
Next filing
May 25, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALEC Common Stock Options Exercise $23.7K +2.9K +1.06% $8.16 277K May 18, 2021 Direct
transaction ALEC Common Stock Options Exercise $13.2K +1.3K +0.47% $10.14 278K May 18, 2021 Direct
transaction ALEC Common Stock Sale -$75.8K -4.2K -1.51% $18.04 274K May 18, 2021 Direct F1, F2

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) Options Exercise $0 -2.9K -2.08% $0.00 137K May 18, 2021 Common Stock 2.9K $8.16 Direct F3
transaction ALEC Employee Stock Option (right to buy) Options Exercise $0 -1.3K -2.31% $0.00 55K May 18, 2021 Common Stock 1.3K $10.14 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan adopted on May 28, 2020.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.00 to $18.09, 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.
F3 One forty-eighth (1/48th) of the shares subject to the option vested on August 2, 2018, and one forty-eighth (1/48th) of the shares subject to the option vest monthly thereafter.
F4 One-fourth (1/4th) of the shares subject to the option vested on November 1, 2019 and one forty-eighth (1/48th) of the shares vest monthly thereafter.