# clm_803E18A79D0E

subject: Klaviyo (/record/klaviyo.md)  
predicate: ceo  
value: Andrew Bialecki  
valid_from: 2026-01-01  
valid_to: null  
published: 2025-12-09  
recorded: 2026-10-30  
confidence: 0.95  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-10-30  
checked: 2026-10-30 · its source page states the value and the date  

> Mr. Bialecki is a Co-Founder of Klaviyo and has served as a member of our board of directors since September 2012 and as our Co-Chief Executive Officer since January 2026. Prior to that, Mr. Bialecki served as our Chief Executive Officer from September 2012 to December 2025.

What https://www.sec.gov/Archives/edgar/data/1835830/000183583026000018/kvyo-20260429.htm says, word for word.

## Sources

- https://www.sec.gov/Archives/edgar/data/1835830/000183583025000116/kvyo-20251208.htm (primary, Klaviyo, Inc. (SEC 8-K), published 2025-12-09)
- https://www.sec.gov/Archives/edgar/data/1835830/000183583026000018/kvyo-20260429.htm (primary, Klaviyo, Inc. (DEF 14A), published 2026-04-29)

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