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Filing Details

Accession Number:: 0001104659-20-000407
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2020-01-02 17:01:17
Reporting Period:: 2019-12-30

Accepted Time:: 2020-01-02 17:01:17
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1764925	Slack Technologies Inc.	WORK	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1160077	L Marc Andreessen	2865 Sand Hill Road, Suite 101 Menlo Park CA 94025		No	No	Yes	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Class A Common Stock	Disposition	2019-12-24	34,900	$0.00	1,936,243	No	5	G	Indirect	By Trust
Class A Common Stock	Acquisiton	2019-12-24	34,900	$0.00	34,900	No	5	G	Indirect	By LAAF
Class A Common Stock	Disposition	2019-12-26	523,100	$0.00	1,413,143	No	5	G	Indirect	By Trust
Class A Common Stock	Disposition	2019-12-30	34,900	$22.05	0	No	4	S	Indirect	By LAAF

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	5	G	Indirect	By Trust
No	5	G	Indirect	By LAAF
No	5	G	Indirect	By Trust
No	4	S	Indirect	By LAAF

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Class A Common Stock	3,816,419	Indirect	By AH Parallel Fund IV, L.P.
Class A Common Stock	9,814,412	Indirect	By Andreessen Horowitz Fund I, L.P.
Class A Common Stock	60,536	Indirect	By AH Capital Management, L.L.C.

Footnotes

Represents shares gifted to the Laura Arrillaga-Andreessen Foundation ("LAAF") of which the Reporting Person and his spouse are directors.
The shares are held of record by the LAMA Community Trust of which the Reporting Person and his spouse are trustees.
The shares are held of record by LAAF. The Reporting Person disclaims beneficial ownership of the securities held by LAAF, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions on behalf of LAAF at prices ranging from $21.66 to $22.3050, 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 range set forth in this footnote.
These shares are held of record by AH Parallel Fund IV, L.P., for itself and as nominee for AH Parallel Fund IV-A, L.P., AH Parallel Fund IV-B, L.P., and AH Parallel Fund IV-Q, L.P. (collectively the "AH Parallel Fund IV Entities"). AH Equity Partners IV (Parallel), L.L.C. ("AH EP IV Parallel"), the general partner of the AH Parallel Fund IV Entities, has sole voting and dispositive power with regard to the shares held by the AH Parallel Fund IV Entities. The managing members of AH EP IV Parallel are Marc Andreessen and Ben Horowitz. Marc Andreessen and Ben Horowitz share voting and dispositive power with respect to the shares held by the AH Parallel Fund IV Entities.
(Continued from Footnote 5) The Reporting Person disclaims beneficial ownership of the securities held by the AH Parallel Fund IV Entities (and this report shall not be deemed an admission that he is the beneficial owner of such securities), except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in the AH Parallel Fund IV Entities.
These shares are held of record by Andreessen Horowitz Fund I, L.P., as nominee for Andreessen Horowitz Fund I, L.P., Andreessen Horowitz Fund I-A, L.P. and Andreessen Horowitz Fund I-B, L.P. (collectively, the "AH Fund I Entities"). AH Equity Partners I, L.L.C. ("AH EP I"), the general partner of the AH Fund I Entities, has sole voting and dispositive power with regard to the shares held by the AH Fund I Entities. The managing members of AH EP I are Marc Andreessen and Ben Horowitz. Marc Andreessen and Ben Horowitz share voting and dispositive power with respect to the shares held by the AH Fund I Entities.
(Continued from Footnote 7) The Reporting Person disclaims beneficial ownership of the securities held by the AH Fund I Entities (and this report shall not be deemed an admission that he is the beneficial owner of such securities), except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in the AH Fund I Entities.
These shares are held of record by AH Capital Management, L.L.C. The members of AH Capital Management, L.L.C. are Marc Andreessen and Ben Horowitz, who share voting and investment power with respect to the shares held by AH Capital Management, L.L.C. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.