---
schema_version: "secwatch.filing_event.v1"
accession: "0001835830-24-000017"
form_type: "8-K"
ticker: "KVYO"
cik: "0001835830"
company_name: "Klaviyo, Inc."
filed_at: "2024-02-27T23:59:59+00:00"
generated_at: "2026-06-05T12:52:54.239013+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Klaviyo Q4 rev $201.6M (+39% YoY), FY rev $698.1M (+48%); lock-up ends Feb 29

## Summary
- Q4 revenue $201.6M (+39% YoY); GAAP net loss $0.10/share; non-GAAP net income $0.10/share.
- FY revenue $698.1M (+48% YoY); GAAP net loss $1.27/share; non-GAAP net income $0.41/share.
- FY cash from ops $119.4M; free cash flow $110.0M (16% margin).
- Over 143,000 customers; 1,958 customers with >$50k ARR (+80% YoY); NRR 117%.
- Lock-up agreements from IPO expire at trading open on Feb 29, 2024 after earnings release.

## SEC filing metadata
- accession: 0001835830-24-000017
- form_type: 8-K
- ticker: KVYO
- cik: 0001835830
- company_name: Klaviyo, Inc.
- filed_at: 2024-02-27T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1835830/000183583024000017/0001835830-24-000017-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1835830/000183583024000017/kvyo-20240227.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001835830-24-000017
- JSON: https://secwatch.observer/filing/0001835830-24-000017.json
- Plain text: https://secwatch.observer/filing/0001835830-24-000017.txt

## Key facts
- Earnings Releases
  Klaviyo, Inc. reported fourth quarter and fiscal year ended December 31, 2023 results: revenue $201.6 million, EPS $(0.10). Guidance initiated.
  - Period: fourth quarter and fiscal year ended December 31, 2023
  - Revenue: $201.6 million
  - EPS: $(0.10)
  - Guidance: initiated
  - Result: preliminary results
  source text: set forth by specific reference in such filing. --- EX-99.1 (EX-99.1) --- Klaviyo Announces Fourth Quarter and Fiscal Year 2023 Financial Results Fourth quarter revenue of $201.6 million, representing 39% year-over-year growth Expanded platform with launch of Klaviyo AI BOSTON, February 27, 2024 — Klaviyo (NYSE: KVYO), the company that powers smarter digital
  evidence_url: https://www.sec.gov/Archives/edgar/data/1835830/000183583024000017/0001835830-24-000017-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.