# EDGAR Filing Document

**Accession Number:** 0001835830
**File Stem:** 0001835830-26-000020
**Filing Date:** 2026-4
**Character Count:** 1126
**Document Hash:** b9f895c92395707dbcb523dbe22400cb
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001835830-26-000020.hdr.sgml**: 20260429

**ACCESSION NUMBER**: 0001835830-26-000020

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260429

**DATE AS OF CHANGE**: 20260429

**EFFECTIVENESS DATE**: 20260429

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Klaviyo, Inc.
- **CENTRAL INDEX KEY:** 0001835830
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-PREPACKAGED SOFTWARE [7372]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41806
- **FILM NUMBER:** 26918203

**BUSINESS ADDRESS:**
- **STREET 1:** 125 SUMMER STREET, FLOOR 6
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110
- **BUSINESS PHONE:** 800-338-1744

**MAIL ADDRESS:**
- **STREET 1:** 125 SUMMER STREET, FLOOR 6
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110

### Attached PDF Documents

**Attachment 1:** `kvyo-2026arsfinal.pdf`

_No text found in this document._