Edith W. Cooper - Jul 1, 2021 Form 4 Insider Report for Slack Technologies, Inc. (WORK)

Role: Director
Signature: /s/ David Schellhase, as Attorney-in-Fact
Stock symbol: WORK
Transactions as of: Jul 1, 2021
Transactions value $: $0
Form type: 4
Date filed: 7/6/2021, 05:04 PM
Previous filing: Jun 15, 2021
Next filing: Jul 21, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WORK	Class A Common Stock	Conversion of derivative security	$0	+17.1K	+7.49%	$0.00	245K	Jul 1, 2021	Direct	F1

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	WORK	Restricted Stock Units	Options Exercise	$0	-17.1K	-33.33%	$0.00	34.2K	Jul 1, 2021	Class B Common Stock	17.1K		Direct	F1, F2, F3
transaction	WORK	Class B Common Stock	Options Exercise	$0	+17.1K		$0.00	17.1K	Jul 1, 2021	Class A Common Stock	17.1K		Direct	F1
transaction	WORK	Class B Common Stock	Conversion of derivative security	$0	-17.1K	-100%	$0.00^*	0	Jul 1, 2021	Class A Common Stock	17.1K		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.
F2	Each Restricted Stock Units (RSU) represents the right to receive one share of Class B Common Stock.
F3	The RSUs are subject to time-based and performance-based vesting criteria. The time-based vesting occurs in 16 quarterly installments commencing on April 1, 2018, subject to the Reporting Person's continued service with the Issuer on each such date. The performance-based criteria was satisfied upon the Issuer's listing and public trading of its Class A Common Stock on June 20, 2019.