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Accel X LP

Disclosed activity across 3 companies

Tapewire entity
96095
SEC CIK
0001419457

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Slack Technologies, Inc.WORK · Entity 13710810% ownerApril 15, 2020April 17, 2020

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Slack Technologies, Inc.

Report date April 15, 2020 · Filed April 17, 2020

Jointly reported with ACCEL X STRATEGIC PARTNERS LP, Accel X Associates L.L.C., Accel Investors 2009 L.L.C.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect986,370 Reported balance After 2020-04-15 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2020-04-15 · Other · Disposed 3,048,780 · Balance 986,370

F1: On April 15, 2020, Accel X L.P. distributed, for no consideration, 3,048,780 shares of Class A common stock of the Issuer (the "Accel X Shares") to its limited partners and to Accel X Associates L.L.C. ("Accel X GP"), the general partner of Accel X L.P., representing each such partner's pro rata interest in such Accel X Shares. On the same date, Accel X GP distributed, for no consideration, the Accel X Shares it received in the distribution by Accel X L.P. to its members, representing each such member's pro rata interest in such Accel X Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F2: These shares are held by Accel X L.P. Accel X GP is the general partner of each of Accel X L.P. and Accel X Strategic Partners L.P. (together, the "Accel X Entities"). Accel X GP has sole voting and dispositive power with regard to the shares held by the Accel X Entities. Accel X GP disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

Class A Common StockSEC Table I · non-derivativeIndirectBy Accel X Strategic Partners L.P.74,030 Reported balance After 2020-04-15 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2020-04-15 · Other · Disposed 228,820 · Balance 74,030

F3: On April 15, 2020, Accel X Strategic Partners L.P. distributed, for no consideration, 228,820 shares of Class A common stock of the Issuer (the "Accel X Strategic Shares") to its limited partners and to Accel X GP, the general partner of Accel X Strategic Partners L.P., representing each such partner's pro rata interest in such Accel X Strategic Shares. On the same date, Accel X GP distributed, for no consideration, the Accel X Strategic Shares it received in the distribution by Accel X Strategic Partners L.P. to its members, representing each such member's pro rata interest in such Accel X Strategic Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4: These shares are held by Accel X Strategic Partners L.P. Accel X GP disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

Class A Common StockSEC Table I · non-derivativeIndirectBy Accel Investors 2009 L.L.C.39,600 Reported balance After 2020-04-15 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2020-04-15 · Other · Disposed 122,400 · Balance 39,600

F5: On April 15, 2020, Accel Investors 2009 L.L.C. distributed, for no consideration, 122,400 shares of Class A common stock of the Issuer (the "Accel 2009 Shares") to its members, representing each such member's pro rata interest in such Accel 2009 Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F6: These shares are held by Accel Investors 2009 L.L.C.

Filing footnotes · ownership attribution and instrument terms

F1: On April 15, 2020, Accel X L.P. distributed, for no consideration, 3,048,780 shares of Class A common stock of the Issuer (the "Accel X Shares") to its limited partners and to Accel X Associates L.L.C. ("Accel X GP"), the general partner of Accel X L.P., representing each such partner's pro rata interest in such Accel X Shares. On the same date, Accel X GP distributed, for no consideration, the Accel X Shares it received in the distribution by Accel X L.P. to its members, representing each such member's pro rata interest in such Accel X Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F2: These shares are held by Accel X L.P. Accel X GP is the general partner of each of Accel X L.P. and Accel X Strategic Partners L.P. (together, the "Accel X Entities"). Accel X GP has sole voting and dispositive power with regard to the shares held by the Accel X Entities. Accel X GP disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

F3: On April 15, 2020, Accel X Strategic Partners L.P. distributed, for no consideration, 228,820 shares of Class A common stock of the Issuer (the "Accel X Strategic Shares") to its limited partners and to Accel X GP, the general partner of Accel X Strategic Partners L.P., representing each such partner's pro rata interest in such Accel X Strategic Shares. On the same date, Accel X GP distributed, for no consideration, the Accel X Strategic Shares it received in the distribution by Accel X Strategic Partners L.P. to its members, representing each such member's pro rata interest in such Accel X Strategic Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4: These shares are held by Accel X Strategic Partners L.P. Accel X GP disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

F5: On April 15, 2020, Accel Investors 2009 L.L.C. distributed, for no consideration, 122,400 shares of Class A common stock of the Issuer (the "Accel 2009 Shares") to its members, representing each such member's pro rata interest in such Accel 2009 Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F6: These shares are held by Accel Investors 2009 L.L.C.

Past disclosures · reporting ended (2)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Section 16 reporting ended · disclosed 2017-10-04. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect8,133,112 Reported balance After 2017-10-02 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2017-10-02 · Sale · Disposed 4,459,070 · Balance 8,133,112

F1: Accel X Associates L.L.C. is the general partner of Accel X L.P. and Accel X Strategic Partners L.P. and has the sole voting and investment power.

F2: Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock and Richard P. Wong are the Managing Members of Accel Investors 2008 L.L.C. and Accel X Associates L.L.C. and share voting and investment powers over such shares.

Common StockSEC Table I · non-derivativeIndirectBy Accel Investors 2008 L.L.C.850,559 Reported balance After 2017-10-02 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2017-10-02 · Sale · Disposed 466,328 · Balance 850,559

F2: Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock and Richard P. Wong are the Managing Members of Accel Investors 2008 L.L.C. and Accel X Associates L.L.C. and share voting and investment powers over such shares.

Common StockSEC Table I · non-derivativeIndirectBy Accel X Strategic Partners L.P.616,315 Reported balance After 2017-10-02 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2017-10-02 · Sale · Disposed 337,900 · Balance 616,315

F1: Accel X Associates L.L.C. is the general partner of Accel X L.P. and Accel X Strategic Partners L.P. and has the sole voting and investment power.

F2: Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock and Richard P. Wong are the Managing Members of Accel Investors 2008 L.L.C. and Accel X Associates L.L.C. and share voting and investment powers over such shares.

Common StockSEC Table I · non-derivativeIndirectBy Accel Growth Fund II L.P.1,949,426 Reported balance After 2017-10-02 transaction · row 4 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 4 · 2017-10-02 · Sale · Disposed 1,068,794 · Balance 1,949,426

F3: Accel Growth Fund II Associates L.L.C. ("AGF II Associates") is the general partner of Accel Growth Fund II L.P. ("AGF II") and Accel Growth Fund II Strategic Partners L.P. ("AGF II Strategic") and has the sole voting and investment power.

F4: Andrew G. Braccia, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF II Associates and Accel Growth Fund Investors 2012 L.L.C. and share voting and investment powers over such shares.

Common StockSEC Table I · non-derivativeIndirectBy Accel Growth Fund II Strategic Partners L.P.141,150 Reported balance After 2017-10-02 transaction · row 5 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 5 · 2017-10-02 · Sale · Disposed 77,387 · Balance 141,150

F3: Accel Growth Fund II Associates L.L.C. ("AGF II Associates") is the general partner of Accel Growth Fund II L.P. ("AGF II") and Accel Growth Fund II Strategic Partners L.P. ("AGF II Strategic") and has the sole voting and investment power.

F4: Andrew G. Braccia, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF II Associates and Accel Growth Fund Investors 2012 L.L.C. and share voting and investment powers over such shares.

Common StockSEC Table I · non-derivativeIndirectBy Accel Growth Fund Investors 2012 L.L.C.189,720 Reported balance After 2017-10-02 transaction · row 6 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 6 · 2017-10-02 · Sale · Disposed 104,016 · Balance 189,720

F4: Andrew G. Braccia, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF II Associates and Accel Growth Fund Investors 2012 L.L.C. and share voting and investment powers over such shares.

Common StockSEC Table I · non-derivativeIndirectBy Accel Investors 2013 L.L.C.0 Reported balance After 2017-10-02 transaction · row 7 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 7 · 2017-10-02 · Sale · Disposed 1,382 · Balance 0

F5: Andrew G. Braccia, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock and Richard P. Wong are the Managing Members of Accel Investors 2013 L.L.C. and Accel XI Associates L.L.C. and share voting and investment powers over such shares.

Common StockSEC Table I · non-derivativeIndirectBy Accel XI, L.P.0 Reported balance After 2017-10-02 transaction · row 8 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 8 · 2017-10-02 · Sale · Disposed 13,007 · Balance 0

F5: Andrew G. Braccia, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock and Richard P. Wong are the Managing Members of Accel Investors 2013 L.L.C. and Accel XI Associates L.L.C. and share voting and investment powers over such shares.

F6: Accel XI Associates L.L.C. is the General Partner of Accel XI, L.P. and Accel XI Strategic Partners L.P. and has the sole voting and investment power.

Common StockSEC Table I · non-derivativeIndirectBy Accel XI Strategic Partners L.P.0 Reported balance After 2017-10-02 transaction · row 9 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 9 · 2017-10-02 · Sale · Disposed 978 · Balance 0

F5: Andrew G. Braccia, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock and Richard P. Wong are the Managing Members of Accel Investors 2013 L.L.C. and Accel XI Associates L.L.C. and share voting and investment powers over such shares.

F6: Accel XI Associates L.L.C. is the General Partner of Accel XI, L.P. and Accel XI Strategic Partners L.P. and has the sole voting and investment power.

Filing footnotes · ownership attribution and instrument terms

F1: Accel X Associates L.L.C. is the general partner of Accel X L.P. and Accel X Strategic Partners L.P. and has the sole voting and investment power.

F2: Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock and Richard P. Wong are the Managing Members of Accel Investors 2008 L.L.C. and Accel X Associates L.L.C. and share voting and investment powers over such shares.

F3: Accel Growth Fund II Associates L.L.C. ("AGF II Associates") is the general partner of Accel Growth Fund II L.P. ("AGF II") and Accel Growth Fund II Strategic Partners L.P. ("AGF II Strategic") and has the sole voting and investment power.

F4: Andrew G. Braccia, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF II Associates and Accel Growth Fund Investors 2012 L.L.C. and share voting and investment powers over such shares.

F5: Andrew G. Braccia, Sameer K. Gandhi, Ping Li (who is a director of the Issuer), Tracy L. Sedlock and Richard P. Wong are the Managing Members of Accel Investors 2013 L.L.C. and Accel XI Associates L.L.C. and share voting and investment powers over such shares.

F6: Accel XI Associates L.L.C. is the General Partner of Accel XI, L.P. and Accel XI Strategic Partners L.P. and has the sole voting and investment power.

Section 16 reporting ended · disclosed 2023-12-18. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect1,946,754 Reported balance After 2023-12-14 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2023-12-14 · Other · Disposed 423,600 · Balance 1,946,754

F1: On December 14, 2023, Accel X LP distributed, for no consideration, 423,600 shares of Common Stock of the Issuer (the "Accel X LP Shares") to its limited partners and general partner, which shares were further distributed, representing each such partner's pro rata interest in such Accel X LP Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

Common StockSEC Table I · non-derivativeIndirectBy: Accel X Strategic Partners L.P.147,515 Reported balance After 2023-12-14 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2023-12-14 · Other · Disposed 32,100 · Balance 147,515

F2: On December 14, 2023, Accel X Strategic Partners L.P. ("A10SP") distributed, for no consideration, 32,100 shares of Common Stock of the Issuer (the "A10SP Shares") to its limited partners and general partner, which shares were further distributed, representing each such partner's pro rata interest in such A10SP Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3: Accel X Associates L.L.C. ("A10A") is the General Partner of both Accel X L.P. and Accel X Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock and Richard P. Wong are the Managing Members of A10A and Accel Investors 2008 L.L.C., and therefore share the voting and investment powers. Accel Growth Fund II Associates L.L.C., or AGF2A, is the General Partner of both Accel Growth Fund II L.P. and Accel Growth Fund II Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF2A and Accel Growth Fund Investors 2013 L.L.C. and share such powers. Each person disclaims beneficial ownership except to the extent of their pecuniary interest therein. The address for all Accel entities listed above is 500 University Avenue, Palo Alto, California 94301.

Common StockSEC Table I · non-derivativeIndirectBy: Accel Investors 2008 L.L.C.203,580 Reported balance After 2023-12-14 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2023-12-14 · Other · Disposed 44,300 · Balance 203,580

F4: On December 14, 2023, Accel Investors 2008 L.L.C. ("AI08") distributed for no consideration 44,300 shares of Common Stock of the Issuer (the "AI08 Shares") to its limited partners, representing each such partner's pro rata interest in such AI08 Shares. All of the aforementioned distributions were made in accordance with the exceptions afforded by Rules 16a-13 and 16a-9 of the Securities and Exchange Act of 1934, as amended.

F3: Accel X Associates L.L.C. ("A10A") is the General Partner of both Accel X L.P. and Accel X Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock and Richard P. Wong are the Managing Members of A10A and Accel Investors 2008 L.L.C., and therefore share the voting and investment powers. Accel Growth Fund II Associates L.L.C., or AGF2A, is the General Partner of both Accel Growth Fund II L.P. and Accel Growth Fund II Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF2A and Accel Growth Fund Investors 2013 L.L.C. and share such powers. Each person disclaims beneficial ownership except to the extent of their pecuniary interest therein. The address for all Accel entities listed above is 500 University Avenue, Palo Alto, California 94301.

Common StockSEC Table I · non-derivativeIndirectBy: Accel Growth Fund II L.P.2,022,312 Reported balance Holding disclosure · report date 2023-12-14 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 2,022,312

F3: Accel X Associates L.L.C. ("A10A") is the General Partner of both Accel X L.P. and Accel X Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock and Richard P. Wong are the Managing Members of A10A and Accel Investors 2008 L.L.C., and therefore share the voting and investment powers. Accel Growth Fund II Associates L.L.C., or AGF2A, is the General Partner of both Accel Growth Fund II L.P. and Accel Growth Fund II Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF2A and Accel Growth Fund Investors 2013 L.L.C. and share such powers. Each person disclaims beneficial ownership except to the extent of their pecuniary interest therein. The address for all Accel entities listed above is 500 University Avenue, Palo Alto, California 94301.

Common StockSEC Table I · non-derivativeIndirectBy: Accel Growth Fund II Strategic Partners L.P.146,484 Reported balance Holding disclosure · report date 2023-12-14 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 146,484

F3: Accel X Associates L.L.C. ("A10A") is the General Partner of both Accel X L.P. and Accel X Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock and Richard P. Wong are the Managing Members of A10A and Accel Investors 2008 L.L.C., and therefore share the voting and investment powers. Accel Growth Fund II Associates L.L.C., or AGF2A, is the General Partner of both Accel Growth Fund II L.P. and Accel Growth Fund II Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF2A and Accel Growth Fund Investors 2013 L.L.C. and share such powers. Each person disclaims beneficial ownership except to the extent of their pecuniary interest therein. The address for all Accel entities listed above is 500 University Avenue, Palo Alto, California 94301.

Common StockSEC Table I · non-derivativeIndirectBy: Accel Growth Fund Investors 2013 L.L.C.217,110 Reported balance Holding disclosure · report date 2023-12-14 · row 6 Holding and transaction disclosures are not merged.
1 source row

Row 6 · Balance 217,110

F3: Accel X Associates L.L.C. ("A10A") is the General Partner of both Accel X L.P. and Accel X Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock and Richard P. Wong are the Managing Members of A10A and Accel Investors 2008 L.L.C., and therefore share the voting and investment powers. Accel Growth Fund II Associates L.L.C., or AGF2A, is the General Partner of both Accel Growth Fund II L.P. and Accel Growth Fund II Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF2A and Accel Growth Fund Investors 2013 L.L.C. and share such powers. Each person disclaims beneficial ownership except to the extent of their pecuniary interest therein. The address for all Accel entities listed above is 500 University Avenue, Palo Alto, California 94301.

Filing footnotes · ownership attribution and instrument terms

F1: On December 14, 2023, Accel X LP distributed, for no consideration, 423,600 shares of Common Stock of the Issuer (the "Accel X LP Shares") to its limited partners and general partner, which shares were further distributed, representing each such partner's pro rata interest in such Accel X LP Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F2: On December 14, 2023, Accel X Strategic Partners L.P. ("A10SP") distributed, for no consideration, 32,100 shares of Common Stock of the Issuer (the "A10SP Shares") to its limited partners and general partner, which shares were further distributed, representing each such partner's pro rata interest in such A10SP Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3: Accel X Associates L.L.C. ("A10A") is the General Partner of both Accel X L.P. and Accel X Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock and Richard P. Wong are the Managing Members of A10A and Accel Investors 2008 L.L.C., and therefore share the voting and investment powers. Accel Growth Fund II Associates L.L.C., or AGF2A, is the General Partner of both Accel Growth Fund II L.P. and Accel Growth Fund II Strategic Partners L.P., and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of AGF2A and Accel Growth Fund Investors 2013 L.L.C. and share such powers. Each person disclaims beneficial ownership except to the extent of their pecuniary interest therein. The address for all Accel entities listed above is 500 University Avenue, Palo Alto, California 94301.

F4: On December 14, 2023, Accel Investors 2008 L.L.C. ("AI08") distributed for no consideration 44,300 shares of Common Stock of the Issuer (the "AI08 Shares") to its limited partners, representing each such partner's pro rata interest in such AI08 Shares. All of the aforementioned distributions were made in accordance with the exceptions afforded by Rules 16a-13 and 16a-9 of the Securities and Exchange Act of 1934, as amended.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 1,219,420 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · derivative · entry 10

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV L.P.

Disclosed balance after: 3,658,260

Underlying: Class A Common Stock · 1,219,420 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F8 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F5 · ownership.nature: These shares are held by Accel Growth Fund IV L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P. (the "Accel Growth Fund IV Entities"). The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 245,497 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · derivative · entry 9

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2014 L.L.C.

Disclosed balance after: 736,492

Underlying: Class A Common Stock · 245,497 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F8 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F4 · ownership.nature: These shares are held by Accel Growth Fund Investors 2014 L.L.C. The managing members of Accel Growth Fund Investors 2014 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2014 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 174,942 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · derivative · entry 8

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III Strategic Partners L.P.

Disclosed balance after: 524,827

Underlying: Class A Common Stock · 174,942 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F8 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F3 · ownership.nature: These shares are held by Accel Growth Fund III Strategic Partners L.P. Accel Growth Fund III Associates L.L.C. is the general partner of each of the Accel Growth Fund III Entities. The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 3,705,529 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · derivative · entry 7

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III L.P.

Disclosed balance after: 11,116,587

Underlying: Class A Common Stock · 3,705,529 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F8 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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 · ownership.nature: These shares are held by Accel Growth Fund III L.P. Accel Growth Fund III Associates L.L.C is the general partner of each of Accel Growth Fund III L.P. and Accel Growth Fund III Strategic Partners L.P. (together, the "Accel Growth Fund III Entities). The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 58,325 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · nonDerivative · entry 6

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 58,325

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F7 · ownership.nature: These shares are held by Accel Growth Fund Investors 2016 L.L.C. The managing member of Accel Growth Fund Investors 2016 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2016 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 6,937 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · nonDerivative · entry 5

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 6,937

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F6 · ownership.nature: These shares are held by Accel Growth Fund IV Strategic Partners L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of the Accel Growth Fund IV Entities. The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 1,219,420 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · nonDerivative · entry 4

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV L.P.

Disclosed balance after: 1,219,420

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F5 · ownership.nature: These shares are held by Accel Growth Fund IV L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P. (the "Accel Growth Fund IV Entities"). The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 245,497 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · nonDerivative · entry 3

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2014 L.L.C

Disclosed balance after: 245,497

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F4 · ownership.nature: These shares are held by Accel Growth Fund Investors 2014 L.L.C. The managing members of Accel Growth Fund Investors 2014 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2014 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 174,942 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · nonDerivative · entry 2

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III Strategic Partners L.P.

Disclosed balance after: 174,942

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F3 · ownership.nature: These shares are held by Accel Growth Fund III Strategic Partners L.P. Accel Growth Fund III Associates L.L.C. is the general partner of each of the Accel Growth Fund III Entities. The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 15, 2019 00:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 3,705,529 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008021 · wf-form4a_156055717095823.xml · nonDerivative · entry 1

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III L.P.

Disclosed balance after: 3,705,529

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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 · ownership.nature: These shares are held by Accel Growth Fund III L.P. Accel Growth Fund III Associates L.L.C is the general partner of each of Accel Growth Fund III L.P. and Accel Growth Fund III Strategic Partners L.P. (together, the "Accel Growth Fund III Entities). The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 51,924 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008022 · wf-form4a_156055719016336.xml · derivative · entry 4

Accel X LP · CIK 0001419457 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 155,772

Underlying: Class A Common Stock · 51,924 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F4 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F3 · ownership.nature: These shares are held by Accel Leaders Fund Investors 2016 L.L.C. The managing members of Accel Leaders Fund Investors 2016 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Leaders Fund Investors 2016 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 1,086,756 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008022 · wf-form4a_156055719016336.xml · derivative · entry 3

Accel X LP · CIK 0001419457 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 3,260,269

Underlying: Class A Common Stock · 1,086,756 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F4 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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 · ownership.nature: These shares are held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. is the general partner of Accel Leaders Fund L.P. The managing members of Accel Leaders Fund Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Leaders Fund Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Leaders Fund L.P, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 51,924 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008022 · wf-form4a_156055719016336.xml · nonDerivative · entry 2

Accel X LP · CIK 0001419457 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 51,924

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F3 · ownership.nature: These shares are held by Accel Leaders Fund Investors 2016 L.L.C. The managing members of Accel Leaders Fund Investors 2016 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Leaders Fund Investors 2016 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 1,086,756 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008022 · wf-form4a_156055719016336.xml · nonDerivative · entry 1

Accel X LP · CIK 0001419457 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 1,086,756

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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 · ownership.nature: These shares are held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. is the general partner of Accel Leaders Fund L.P. The managing members of Accel Leaders Fund Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Leaders Fund Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Leaders Fund L.P, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 387,596 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · derivative · entry 12

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Investors 2013 L.L.C.

Disclosed balance after: 1,162,788

Underlying: Class A Common Stock · 387,596 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F7 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F6 · ownership.nature: These shares are held by Accel Investors 2013 L.L.C. The managing members of Accel Investors 2013 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Investors 2013 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 274,210 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · derivative · entry 11

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel XI Strategic Partners L.P.

Disclosed balance after: 822,630

Underlying: Class A Common Stock · 274,210 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F7 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F5 · ownership.nature: These shares are held by Accel XI Strategic Partners L.P. Accel XI Associates L.L.C. is the general partner of each of the Accel XI Entities. The managing members of Accel XI Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong. Accel XI Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel XI Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 3,649,641 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · derivative · entry 10

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel XI L.P.

Disclosed balance after: 10,948,923

Underlying: Class A Common Stock · 3,649,641 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F7 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F4 · ownership.nature: These shares are held by Accel XI LP. Accel XI Associates L.L.C. is the general partner each of Accel XI L.P. and Accel XI Strategic Partners L.P. (together, the "Accel XI Entities"). The managing members of Accel XI Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong. Accel XI Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel XI Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 688,373 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · derivative · entry 9

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Investors 2009 L.L.C

Disclosed balance after: 2,065,117

Underlying: Class A Common Stock · 688,373 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F7 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F3 · ownership.nature: These shares are held by Accel Investors 2009 L.L.C. The managing member of Accel Investors 2009 L.L.C. are Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Investors 2009 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 1,286,873 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · derivative · entry 8

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel X Strategic Partners L.P

Disclosed balance after: 3,860,617

Underlying: Class A Common Stock · 1,286,873 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F7 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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 · ownership.nature: These shares are held by Accel X Strategic Partners L.P. Accel X Associates L.L.C. is the general partner of each of the Accel X Entities. The managing members of Accel X Associates L.L.C. are Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong. Accel X Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel X Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass B Common Stock · Derivative 17,146,080 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · derivative · entry 7

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,438,240

Underlying: Class A Common Stock · 17,146,080 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F7 · shares: Due to a clerical error, the Form 4 filed on June 12, 2019 inadvertently reflected in Column 5 of Table II that, in connection with the conversion of shares of Class B Common Stock to Class A Common Stock, shares of Class B Common Stock were acquired rather than disposed of. This amendment is being filed to correct Column 5 of Table II. All other information set forth in the June 12, 2019 Form 4 remains correct and is restated in its entirety.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 387,596 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · nonDerivative · entry 6

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Investors 2013 L.L.C.

Disclosed balance after: 387,596

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F6 · ownership.nature: These shares are held by Accel Investors 2013 L.L.C. The managing members of Accel Investors 2013 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Investors 2013 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 274,210 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · nonDerivative · entry 5

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel XI Strategic Partners L.P.

Disclosed balance after: 274,210

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F5 · ownership.nature: These shares are held by Accel XI Strategic Partners L.P. Accel XI Associates L.L.C. is the general partner of each of the Accel XI Entities. The managing members of Accel XI Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong. Accel XI Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel XI Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 3,649,641 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · nonDerivative · entry 4

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel XI L.P.

Disclosed balance after: 3,649,641

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F4 · ownership.nature: These shares are held by Accel XI LP. Accel XI Associates L.L.C. is the general partner each of Accel XI L.P. and Accel XI Strategic Partners L.P. (together, the "Accel XI Entities"). The managing members of Accel XI Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong. Accel XI Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel XI Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 688,373 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · nonDerivative · entry 3

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Investors 2009 L.L.C

Disclosed balance after: 688,373

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F3 · ownership.nature: These shares are held by Accel Investors 2009 L.L.C. The managing member of Accel Investors 2009 L.L.C. are Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Investors 2009 L.L.C.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 1,286,873 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · nonDerivative · entry 2

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel X Strategic Partners L.P.

Disclosed balance after: 1,286,873

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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 · ownership.nature: These shares are held by Accel X Strategic Partners L.P. Accel X Associates L.L.C. is the general partner of each of the Accel X Entities. The managing members of Accel X Associates L.L.C. are Andrew G. Braccia, Kevin J. Efrusy, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, and Richard P. Wong. Accel X Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel X Entities, and its managing members share such powers.

Read SEC document
June 11, 2019 Filed Jun 14, 2019 20:06 UTC Amendment Slack Technologies, Inc. WORK · Entity 137108 ConversionClass A Common Stock 17,146,080 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-008020 · wf-form4a_156055715071246.xml · nonDerivative · entry 1

Accel X LP · CIK 0001419457 · 10% owner

ACCEL X STRATEGIC PARTNERS LP · CIK 0001430231 · 10% owner

Accel X Associates L.L.C. · CIK 0001494996 · 10% owner

Accel Investors 2009 L.L.C. · CIK 0001494979 · 10% owner

Accel XI L.P. · CIK 0001522763 · 10% owner

Accel XI Strategic Partners L.P. · CIK 0001527391 · 10% owner

Accel XI Associates L.L.C. · CIK 0001535603 · 10% owner

Accel Investors 2013 L.L.C. · CIK 0001589159 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,146,080

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 OtherClass B Common Stock · Derivative 233,298 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 21

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 233,298

Underlying: Class A Common Stock · 233,298 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F1 · kind: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F8 · ownership.nature: These shares are held by Accel Growth Fund Investors 2016 L.L.C. The managing member of Accel Growth Fund Investors 2016 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2016 L.L.C.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 OtherClass B Common Stock · Derivative 27,749 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 20

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 27,749

Underlying: Class A Common Stock · 27,749 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F1 · kind: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F7 · ownership.nature: These shares are held by Accel Growth Fund IV Strategic Partners L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of the Accel Growth Fund IV Entities. The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 OtherClass B Common Stock · Derivative 4,877,680 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 19

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV L.P.

Disclosed balance after: 4,877,680

Underlying: Class A Common Stock · 4,877,680 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F1 · kind: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F6 · ownership.nature: These shares are held by Accel Growth Fund IV L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P. (the "Accel Growth Fund IV Entities"). The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 OtherClass B Common Stock · Derivative 981,989 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 18

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2014 L.L.C.

Disclosed balance after: 981,989

Underlying: Class A Common Stock · 981,989 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F1 · kind: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F5 · ownership.nature: These shares are held by Accel Growth Fund Investors 2014 L.L.C. The managing members of Accel Growth Fund Investors 2014 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2014 L.L.C.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 OtherClass B Common Stock · Derivative 699,769 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 17

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III Strategic Partners L.P.

Disclosed balance after: 699,769

Underlying: Class A Common Stock · 699,769 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F1 · kind: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F4 · ownership.nature: These shares are held by Accel Growth Fund III Strategic Partners L.P.. Accel Growth Fund III Associates L.L.C. is the general partner of each of the Accel Growth Fund III Entities. The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

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June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 OtherClass B Common Stock · Derivative 14,822,116 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 16

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III L.P.

Disclosed balance after: 14,822,116

Underlying: Class A Common Stock · 14,822,116 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F1 · kind: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F3 · ownership.nature: These shares are held by Accel Growth Fund III L.P. Accel Growth Fund III Associates L.L.C is the general partner of each of Accel Growth Fund III L.P. and Accel Growth Fund III Strategic Partners L.P. (together, the "Accel Growth Fund III Entities). The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries H Preferred Stock · Derivative 38,134 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 15

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class B Common Stock · 38,134 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F8 · ownership.nature: These shares are held by Accel Growth Fund Investors 2016 L.L.C. The managing member of Accel Growth Fund Investors 2016 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2016 L.L.C.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries H Preferred Stock · Derivative 4,536 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 14

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 4,536 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F7 · ownership.nature: These shares are held by Accel Growth Fund IV Strategic Partners L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of the Accel Growth Fund IV Entities. The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries H Preferred Stock · Derivative 797,292 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 13

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 797,292 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F6 · ownership.nature: These shares are held by Accel Growth Fund IV L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P. (the "Accel Growth Fund IV Entities"). The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries G Preferred Stock · Derivative 195,164 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 12

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class B Common Stock · 195,164 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F8 · ownership.nature: These shares are held by Accel Growth Fund Investors 2016 L.L.C. The managing member of Accel Growth Fund Investors 2016 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2016 L.L.C.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries G Preferred Stock · Derivative 23,213 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 11

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 23,213 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F7 · ownership.nature: These shares are held by Accel Growth Fund IV Strategic Partners L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of the Accel Growth Fund IV Entities. The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries G Preferred Stock · Derivative 4,080,388 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 10

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 4,080,388 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F6 · ownership.nature: These shares are held by Accel Growth Fund IV L.P. Accel Growth Fund IV Associates L.L.C. is the general partner of each of Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P. (the "Accel Growth Fund IV Entities"). The managing members of Accel Growth Fund IV Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund IV Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund IV Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries F-1 Preferred Stock · Derivative 289,799 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 9

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2014 L.L.C.

Disclosed balance after: 0

Underlying: Class B Common Stock · 289,799 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F5 · ownership.nature: These shares are held by Accel Growth Fund Investors 2014 L.L.C. The managing members of Accel Growth Fund Investors 2014 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2014 L.L.C.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries F-1 Preferred Stock · Derivative 206,514 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 8

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 206,514 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F4 · ownership.nature: These shares are held by Accel Growth Fund III Strategic Partners L.P.. Accel Growth Fund III Associates L.L.C. is the general partner of each of the Accel Growth Fund III Entities. The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries F-1 Preferred Stock · Derivative 4,374,233 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 7

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 4,374,233 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F3 · ownership.nature: These shares are held by Accel Growth Fund III L.P. Accel Growth Fund III Associates L.L.C is the general partner of each of Accel Growth Fund III L.P. and Accel Growth Fund III Strategic Partners L.P. (together, the "Accel Growth Fund III Entities). The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries E Preferred Stock · Derivative 38,850 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 6

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2014 L.L.C.

Disclosed balance after: 0

Underlying: Class B Common Stock · 38,850 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F5 · ownership.nature: These shares are held by Accel Growth Fund Investors 2014 L.L.C. The managing members of Accel Growth Fund Investors 2014 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2014 L.L.C.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries E Preferred Stock · Derivative 27,685 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 5

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 27,685 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F4 · ownership.nature: These shares are held by Accel Growth Fund III Strategic Partners L.P.. Accel Growth Fund III Associates L.L.C. is the general partner of each of the Accel Growth Fund III Entities. The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries E Preferred Stock · Derivative 586,403 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 4

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 586,403 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F3 · ownership.nature: These shares are held by Accel Growth Fund III L.P. Accel Growth Fund III Associates L.L.C is the general partner of each of Accel Growth Fund III L.P. and Accel Growth Fund III Strategic Partners L.P. (together, the "Accel Growth Fund III Entities). The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries D Preferred Stock · Derivative 653,340 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 3

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2014 L.L.C.

Disclosed balance after: 0

Underlying: Class B Common Stock · 653,340 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F5 · ownership.nature: These shares are held by Accel Growth Fund Investors 2014 L.L.C. The managing members of Accel Growth Fund Investors 2014 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Growth Fund Investors 2014 L.L.C.

Read SEC document
June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries D Preferred Stock · Derivative 465,570 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 2

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 465,570 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F4 · ownership.nature: These shares are held by Accel Growth Fund III Strategic Partners L.P.. Accel Growth Fund III Associates L.L.C. is the general partner of each of the Accel Growth Fund III Entities. The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

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June 07, 2019 Filed Jun 8, 2019 01:23 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries D Preferred Stock · Derivative 9,861,480 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007827 · wf-form4_155995702173592.xml · derivative · entry 1

Accel X LP · CIK 0001419457 · 10% owner

Accel Growth Fund III L.P. · CIK 0001601528 · 10% owner

Accel Growth Fund III Strategic Partners L.P. · CIK 0001605863 · 10% owner

Accel Growth Fund III Associates L.L.C. · CIK 0001601529 · 10% owner

Accel Growth Fund Investors 2014 L.L.C. · CIK 0001630897 · 10% owner

Accel Growth Fund IV L.P. · CIK 0001665743 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund III L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 9,861,480 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series D, Series E, Series F-1, Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F3 · ownership.nature: These shares are held by Accel Growth Fund III L.P. Accel Growth Fund III Associates L.L.C is the general partner of each of Accel Growth Fund III L.P. and Accel Growth Fund III Strategic Partners L.P. (together, the "Accel Growth Fund III Entities). The managing members of Accel Growth Fund III Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Growth Fund III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Growth Fund III Entities, and its managing members share such powers.

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June 07, 2019 Filed Jun 7, 2019 21:24 UTC Slack Technologies, Inc. WORK · Entity 137108 OtherClass B Common Stock · Derivative 207,696 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007828 · wf-form4_155995705985574.xml · derivative · entry 6

Accel X LP · CIK 0001419457 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 207,696

Underlying: Class A Common Stock · 207,696 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F1 · kind: The Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F4 · ownership.nature: These shares are held by Accel Leaders Fund Investors 2016 L.L.C. The managing members of Accel Leaders Fund Investors 2016 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Leaders Fund Investors 2016 L.L.C.

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June 07, 2019 Filed Jun 7, 2019 21:24 UTC Slack Technologies, Inc. WORK · Entity 137108 OtherClass B Common Stock · Derivative 4,347,025 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007828 · wf-form4_155995705985574.xml · derivative · entry 5

Accel X LP · CIK 0001419457 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 4,347,025

Underlying: Class A Common Stock · 4,347,025 shares

Expires not disclosed

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F1 · kind: The Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F3 · ownership.nature: These shares are held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. is the general partner of Accel Leaders Fund L.P. The managing members of Accel Leaders Fund Associates L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong. Accel Leaders Fund Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel Leaders Fund L.P, and its managing members share such powers.

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June 07, 2019 Filed Jun 7, 2019 21:24 UTC Slack Technologies, Inc. WORK · Entity 137108 ConversionSeries H Preferred Stock · Derivative 76,605 $0.00 $0.00
Disclosure

SEC source: 0001628280-19-007828 · wf-form4_155995705985574.xml · derivative · entry 4

Accel X LP · CIK 0001419457 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class B Common Stock · 76,605 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.exercise_date: The Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F1 · derivative.expiration_date: The Series G and Series H Preferred Stock are each convertible into Class B Common Stock on a 1:1 basis and have no expiration date. Upon the effectiveness of the Issuer's Registration Statement on Form S-1, all shares of preferred stock were converted, in an exempt transaction pursuant to Rule 16b-7, into shares of Class B Common Stock of the Issuer.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the Reporting Person and has no expiration date.

F4 · ownership.nature: These shares are held by Accel Leaders Fund Investors 2016 L.L.C. The managing members of Accel Leaders Fund Investors 2016 L.L.C. are Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan Sweeney, and Richard P. Wong, all of whom share voting and dispositive power with regard to the shares held by Accel Leaders Fund Investors 2016 L.L.C.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.