SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Shim Allen

(Last)

(First)

(Middle)

C/O SLACK TECHNOLOGIES, INC.

500 HOWARD STREET

(Street)

SAN FRANCISCO,

94105

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Slack Technologies, Inc. [ WORK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
07/01/2021

4. If Amendment, Date of Original Filed (Month/Day/Year)

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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	07/01/2021		S⁽¹⁾		1,925	D	$44.29	234,894⁽²⁾	D
Class A Common Stock								151,468	I	By LLC⁽³⁾
Class A Common Stock								0⁽²⁾⁽⁴⁾	I	By Allen Shim, trustee of the Allen Shim 2019 Grantor Retained Annuity Trust dated May 1, 2019
Class A Common Stock								1,360,805⁽⁵⁾	I	By The Shim-Park Family Revocable Trust
Class A Common Stock								43,176⁽⁴⁾	I	By The Shim Park 2019 Irrevocable Trust

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

Explanation of Responses:

1. Shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs).

2. Reflects 33,132 shares of Class A common stock distributed by the Allen Shim 2019 Grantor Retained Annuity Trust dated May 1, 2019 to the Reporting Person on June 1, 2021, for no consideration, resulting in a change of form of beneficial ownership in accordance with the exemption afforded by Rule 16a-13 of the Securities Exchange Act of 1934, as amended.

3. These shares are held of record by a LLC of which the Reporting Person is the manager. A family trust, for which the Reporting Person is investment advisor, is the sole member of the LLC.

4. Reflects 43,176 shares of Class A common stock distributed by the Allen Shim 2019 Grantor Retained Annuity Trust dated May 1, 2019 to the Shim Park 2019 Irrevocable Trust on June 1, 2021, for no consideration, resulting in a change of form of beneficial ownership in accordance with the exemption afforded by Rule 16a-13 of the Securities Exchange Act of 1934, as amended.

5. Reflects 168,300 shares of Class A common stock donated by the Shim-Park Family Revocable Trust to a donor advised fund on June 18, 2021 for no consideration, in accordance with the exemption afforded by Rule 16b-5 of the Securities Exchange Act of 1934, as amended.

Remarks:

	/s/ David Schellhase, as Attorney-in-Fact	07/06/2021
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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