Filing Details

Accession Number:
0001104659-25-047849
Form Type:
13G Filing
Publication Date:
2025-05-12 20:00:00
Filed By:
Accel Growth Fund V L.P. ("AGF5")
Company:
Klaviyo Inc.
Filing Date:
2025-05-13
SEC Url:
13G Filing
Ownership Summary

Please notice the below summary table is generated without human intervention and may contain errors. Please refer to the complete filing displayed below for exact figures.

Name Beneficially Owned Number of Shares Beneficially Owned Number of Aggregate Shares Percent of Class
Accel Growth Fund V L.P. ("AGF5") 0 1,055,195 1.2%
Accel Growth Fund V Strategic Partners L.P. ("AGF5SP") 0 44,808 0.0%
Accel Growth Fund V Associates L.L.C. ("AGF5A") 0 1,100,003 1.2%
Accel Growth Fund V Investors (2019) L.L.C. ("AGFI19") 0 54,855 0.1%
Accel Leaders Fund II L.P. ("ALF2") 0 3,163,506 3.4%
Accel Leaders Fund II Strategic Partners L.P. ("ALF2SP") 0 134,772 0.1%
Accel Leaders Fund II Associates L.L.C. ("ALF2A") 0 3,298,278 3.6%
Accel Leaders Fund II Investors (2019) L.L.C. ("ALFI19") 0 166,299 0.2%
Ping Li ("PL") 0 4,658,363 4.9%
Filing





Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Checkbox not checked   Rule 13d-1(b)
Checkbox not checked   Rule 13d-1(c)
Checkbox checked   Rule 13d-1(d)






SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 5: 1,055,195 shares issuable upon conversion of Series B Common Stock, all of which are directly owned by AGF5. Accel Growth Fund V Associates L.L.C. ("AGF5A"), the general partner of AGF5, may be deemed to have sole power to vote these shares. Ping Li ("PL"), a director of the issuer and a managing member of AGF5A, may be deemed to have shared power to vote these shares. Note to Row 6: See response to row 5. Note to Row 7: 1,055,195 shares issuable upon conversion of Series B Common Stock, all of which are directly owned by AGF5. AGF5A, the general partner of AGF5, may be deemed to have sole power to dispose of these shares. PL, a director of the issuer and a managing member of AGF5A, may be deemed to have shared power to dispose of these shares. Note to Row 8: See response to row 7. Note to Row 11: Based on 91,556,666 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in its Annual Report on Form 10-K for the year ended December 31, 2024, filed with the Securities and Exchange Commission on February 19, 2025 (the "Form 10-K"), plus (ii) 1,055,195 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by AGF5.


SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 5: 44,808 shares issuable upon conversion of Series B Common Stock, all of which are directly owned by AGF5SP. AGF5A, the general partner of AGF5SP, may be deemed to have sole power to vote these shares. PL, a director of the issuer and a managing member of AGF5A, may be deemed to have shared power to vote these shares. Note to Row 6: See response to row 5. Note to Row 7: 44,808 shares issuable upon conversion of Series B Common Stock, all of which are directly owned by AGF5SP. AGF5A, the general partner of AGF5SP, may be deemed to have sole power to dispose of these shares. PL, a director of the issuer and a managing member of AGF5A, may be deemed to have shared power to dispose of these shares. Note to Row 8: See response to row 7. Note to Row 11: Based on 90,546,279 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in the Form 10-K, plus (ii) 44,808 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by AGF5SP.


SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 5: 1,100,003 shares issuable upon conversion of Series B Common Stock, of which 1,055,195 are directly owned by AGF5, and 44,808 are directly owned by AGF5SP. AGF5A, the general partner of AGF5 and AGF5SP, may be deemed to have sole power to vote these shares. PL, a director of the issuer and a managing member of AGF5A, may be deemed to have shared power to vote these shares. Note to Row 6: See response to row 5. Note to Row 7: 1,100,003 shares issuable upon conversion of Series B Common Stock, of which 1,055,195 are directly owned by AGF5, and 44,808 are directly owned by AGF5SP. AGF5A, the general partner of AGF5 and AGF5SP, may be deemed to have sole power to dispose of these shares. PL, a director of the issuer and a managing member of AGF5A, may be deemed to have shared power to dispose of these shares. Note to Row 8: See response to row 7. Note to Row 11: Based on 91,601,474 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in the Form 10-K, plus (ii) 1,055,195 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by AGF5, plus (iii) 44,808 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by AGF5SP.


SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 5: 54,855 shares issuable upon conversion of Series B Common Stock, all of which are directly owed by AGFI19. PL, a director of the issuer and a managing member of AGF19, may be deemed to have shared power to vote these shares. Note to Row 6: See response to row 5. Note to Row 7: 54,855 shares issuable upon conversion of Series B Common Stock, all of which are directly owed by AGFI19. PL, a director of the issuer and a managing member of AGF19, may be deemed to have shared power to dispose of these shares. Note to Row 8: See response to row 7. Note to Row 11: Based on 90,556,326 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in the Form 10-K, plus (ii) 54,855 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by AGFI19.


SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 5: 3,163,506 shares issuable upon conversion of Series B Common Stock, all of which are directly owned by ALF2. Accel Leaders Fund II Associates L.L.C. ("ALF2A"), the general partner of ALF2, may be deemed to have sole power to vote these shares. PL, a director of the issuer and a managing member of ALF2A, may be deemed to have shared power to vote these shares. Note to Row 6: See response to row 5. Note to Row 7: 3,163,506 shares issuable upon conversion of Series B Common Stock, all of which are directly owned by ALF2. ALF2A, the general partner of ALF2, may be deemed to have shared power to dispose of these shares. PL, a director of the issuer and a managing member of ALF2A, may be deemed to have shared power to vote these shares. Note to Row 8: See response to row 7. Note to Row 11: Based on 93,664,977 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in the Form 10-K, plus (ii) 3,163,506 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by ALF2.


SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 5: 134,772 shares issuable upon conversion of Series B Common Stock, all of which are directly owned by ALF2SP. ALF2A, the general partner of ALF2SP, may be deemed to have sole power to vote these shares. PL, a director of the issuer and a managing member of ALF2A, may be deemed to have shared power to vote these shares. Note to Row 6: See response to row 5. Note to Row 7: 134,772 shares issuable upon conversion of Series B Common Stock, all of which are directly owned by ALF2SP. ALF2A, the general partner of ALF2SP, may be deemed to have shared power to dispose of these shares. PL, a director of the issuer and a managing member of ALF2A, may be deemed to have shared power to dispose of these shares. Note to Row 8: See response to row 7. Note to Row 11: Based on 90,636,243 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in the Form 10-K, plus (ii) 134,772 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by ALF2SP.


SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 5: 3,298,278 shares issuable upon conversion of Series B Common Stock, of which 3,163,506 are directly owned by ALF2 and 134,772 are directly owned by ALF2SP. ALF2A, the general partner of ALF2 and ALF2SP, may be deemed to have sole power to vote these shares. PL, a director of the issuer and a managing member of ALF2A, may be deemed to have shared power to vote these shares. Note to Row 6: See response to row 5. Note to Row 7: 3,298,278 shares issuable upon conversion of Series B Common Stock, of which 3,163,506 are directly owned by ALF2 and 134,772 are directly owned by ALF2SP. ALF2A, the general partner of ALF2 and ALF2SP, may be deemed to have sole power to dispose of these shares. PL, a director of the issuer and a managing member of ALF2A, may be deemed to have shared power to dispose of these shares. Note to Row 8: See response to row 7. Note to Row 11: Based on 93,799,749 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in the Form 10-K, plus (ii) 3,163,506 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by ALF2, plus (iii) 134,772 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by ALF2SP.


SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 5: 166,299 shares issuable upon conversion of Series B Common Stock, all of which are directly owed by ALFI19. PL, a director of the issuer and a managing member of ALFI19, may be deemed to have shared power to vote these shares. Note to Row 6: See response to row 5. Note to Row 7: 166,299 shares issuable upon conversion of Series B Common Stock, all of which are directly owed by ALFI19. PL, a director of the issuer and a managing member of ALFI19, may be deemed to have shared power to dispose of these shares. Note to Row 8: See response to row 7. Note to Row 11: Based on 90,667,770 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in the Form 10-K, plus (ii) 166,299 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by ALFI19.


SCHEDULE 13G



Comment for Type of Reporting Person:  Note to Row 6: 4,619,435 shares issuable upon conversion of Series B Common Stock, of which 1,055,195 are directly owned by AGF5, 44,808 are directly owned by AGF5SP, 54,855 are directly owned by AGFI19, 3,163,506 are directly owned by ALF2, 134,772 are directly owned by ALF2SP, and 166,299 are directly owned by ALFI19. AGF5A, the general partner of AGF5 and AGF5SP, may be deemed to have sole power to vote the shares held by each of AGF5 and AGF5SP. ALF2A, the general partner of ALF2 and ALF2SP, may be deemed to have sole power to vote the shares held by each of ALF2 and ALF2SP. PL, a director of the issuer and a managing member of AGF5A, AGFI19, ALF2A and ALFI19, may be deemed to have shared power to vote the shares held by each of AGF5, AGF5SP, AGFI19, ALF2, ALF2SP and ALFI19. Note to Row 8: 4,619,435 shares issuable upon conversion of Series B Common Stock, of which 1,055,195 are directly owned by AGF5, 44,808 are directly owned by AGF5SP, 54,855 are directly owned by AGFI19, 3,163,506 are directly owned by ALF2, 134,772 are directly owned by ALF2SP, and 166,299 are directly owned by ALFI19. AGF5A, the general partner of AGF5 and AGF5SP, may be deemed to have sole power to dispose of the shares held by each of AGF5 and AGF5SP. ALF2A, the general partner of ALF2 and ALF2SP, may be deemed to have sole power to dispose of the shares held by each of ALF2 and ALF2SP. PL, a director of the issuer and a managing member of AGF5A, AGFI19, ALF2A and ALFI19, may be deemed to have shared power to dispose of the shares held by each of AGF5, AGF5SP, AGFI19, ALF2, ALF2SP, and ALFI19. Note to Row 11: Based on 95,120,906 shares of Series A Common stock, calculated as follows, (i) 90,501,471 shares of Series A Common Stock outstanding as of February 14, 2025, as reported by the issuer in the Form 10-K, plus (ii) 1,055,195 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by AGF5, plus (iii) 44,808 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by AGF5SP, plus (iv) 54,855 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by AGFI19, plus (v) 3,163,506 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by ALF2, plus (vi) 134,772 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by ALF2SP, plus (vii) 166,299 shares of Series A Common Stock issuable upon conversion of shares of Series B Common Stock held by ALFI19.


SCHEDULE 13G


 
Accel Growth Fund V L.P. ("AGF5")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025
 
Accel Growth Fund V Strategic Partners L.P. ("AGF5SP")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025
 
Accel Growth Fund V Associates L.L.C. ("AGF5A")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025
 
Accel Growth Fund V Investors (2019) L.L.C. ("AGFI19")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025
 
Accel Leaders Fund II L.P. ("ALF2")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025
 
Accel Leaders Fund II Strategic Partners L.P. ("ALF2SP")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025
 
Accel Leaders Fund II Associates L.L.C. ("ALF2A")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025
 
Accel Leaders Fund II Investors (2019) L.L.C. ("ALFI19")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025
 
Ping Li ("PL")
 
Signature:Jaspreet Singh
Name/Title:Jaspreet Singh, Attorney-in-fact
Date:05/13/2025

Comments accompanying signature:  Signed pursuant to a Power of Attorney included herein as an exhibit to this Schedule 13G.
Exhibit Information

Exhibit A: Agreement of Joint Filing