WORK Slack Technologies Inc

FORM 4 [X] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES                                                                                   
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * Braccia Andrew	2. Issuer Name and Ticker or Trading Symbol Slack Technologies, Inc. [ WORK ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                    _____ 10% Owner _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) C/O SLACK TECHNOLOGIES, INC., 500 HOWARD STREET	3. Date of Earliest Transaction (MM/DD/YYYY) 7/21/2021
(Street) SAN FRANCISCO,, CA 94105 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	7/21/2021		U		693856	D	(1)	0 (2)	I	The UA 10/26/2005 AKB Living Trust
Class A Common Stock	7/21/2021		U		29748	D	(1)	0	I	The Braccia Family GST Exempt Trust
Class A Common Stock	7/21/2021		U		5854	D	(1)	0	D
Class A Common Stock	7/21/2021		U		18542	D	(1)	0 (3)	I	The AGB GST Exempt 2015 Irrevocable Trust
Class A Common Stock	7/21/2021		U		18542	D	(1)	0 (3)	I	The AJB GST Exempt 2015 Irrevocable Trust
Class A Common Stock	7/21/2021		U		18542	D	(1)	0 (3)	I	The OGB GST Exempt 2015 Irrevocable Trust
Class A Common Stock	7/21/2021		U		18542	D	(1)	0 (3)	I	The LAB GST Exempt 2015 Irrevocable Trust

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:
(1)	Pursuant to the Agreement and Plan of Merger, dated as of December 1, 2020 (the "Merger Agreement"), by and among salesforce.com, inc. ("Salesforce"), Skyline Strategies I Inc., Skyline Strategies II LLC, and the Issuer, each share of the Issuer's common stock was tendered in exchange for (i) 0.0776 shares of Salesforce common stock and (ii) $26.79 in cash, together with cash in lieu of any fractional shares of Salesforce common stock.
(2)	Includes (i) 148,342 shares of Class A common stock and (ii) 122,840 shares of Class A common stock, in each case acquired by the Reporting Person in distributions for no consideration on December 30, 2020 and April 13, 2021, respectively, in accordance with the exemptions afforded by Rules 16a-9 and 16a-13 of the Securities Exchange Act of 1934, as amended.
(3)	Includes 10,232 shares of Class A common stock in each case acquired by the indicated trust in distributions for no consideration on April 13, 2021, in accordance with the exemptions afforded by Rules 16a-9 and 16a-13 of the Securities Exchange Act of 1934, as amended.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Braccia Andrew C/O SLACK TECHNOLOGIES, INC. 500 HOWARD STREET SAN FRANCISCO,, CA 94105	X

Signatures
/s/ David Schellhase, as Attorney-in-Fact		7/21/2021
**Signature of Reporting Person		Date