Klaviyo, Inc.

KVYO·NYSE·$14.46Share Price as of 11/2·$4BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/05/26 10-QQ1 ended 03/31/2605/05/26 10-KFY 202502/10/26 10-QQ3 ended 09/30/2511/05/25 10-QQ2 ended 06/30/2508/05/25

Disclosures

8-KCurrent report08/05/26 8-KCurrent report07/13/26 8-KCurrent report06/09/26 8-KCurrent report05/05/26 8-KCurrent report03/02/26

Prospectuses and Registrations

S-8Registration of securities for employees02/10/26 424B7Prospectus08/15/25 424B7Prospectus08/14/25 424B7Prospectus05/15/25 424B7Prospectus05/13/25

Proxies

DEF 14ADefinitive proxy04/29/26 DEFA14AAdditional proxy materials04/29/26 DEF 14ADefinitive proxy04/23/25 DEFA14AAdditional proxy materials04/23/25 DEF 14ADefinitive proxy04/25/24

Ownership

Form 4Insider transaction10/09/26 144Proposed sale of securities10/07/26 Form 4Insider transaction09/25/26 144Proposed sale of securities09/24/26 144Proposed sale of securities09/17/26

Other

ARSAnnual report to shareholders04/29/26 ARSAnnual report to shareholders04/23/25 ARSAnnual report to shareholders04/25/24 CERTCEO/CFO certification09/20/23 EFFECTRequest for effectiveness09/19/23