Andrew  Bialecki net worth and biography

Andrew Bialecki Biography and Net Worth

Chief Executive Officer, Co-Founder, and Chairperson of Klaviyo

Andrew Bialecki is a co-founder of Klaviyo and has served as our Chief Executive Officer and as a member of our board of directors since September 2012. Prior to founding Klaviyo, Mr. Bialecki served as Chief Technology Officer of RockTech, a sales and marketing software company, from April 2011 to June 2012, Senior Engineer at Performable, a marketing software company, from July 2010 to March 2011, and Lead Engineer at Applied Predictive Technologies, a business analytics software company, from September 2007 to June 2010. Mr. Bialecki holds a Bachelor of Arts degree in Physics, Astronomy and Astrophysics from Harvard University.

How old is Andrew Bialecki?

Mr. Bialecki is currently 37 years old. There are 6 older executives and no younger executives at Klaviyo. The oldest executive at Klaviyo is Mr. Stephen Eric Rowland, President, who is 55 years old. Learn More on Andrew Bialecki's age.

How do I contact Andrew Bialecki?

The corporate mailing address for Mr. Bialecki and other Klaviyo executives is , , . Klaviyo can also be reached via phone at (617) 213-1788 and via email at [email protected]. Learn More on Andrew Bialecki's contact information.

Has Andrew Bialecki been buying or selling shares of Klaviyo?

During the last quarter, Andrew Bialecki has sold $20,128,616.33 of Klaviyo stock. Most recently, Andrew Bialecki sold 952 shares of the business's stock in a transaction on Thursday, December 4th. The shares were sold at an average price of $30.00, for a transaction totalling $28,560.00. Learn More on Andrew Bialecki's trading history.

Who are Klaviyo's active insiders?

Klaviyo's insider roster includes Andrew Bialecki (Chief Executive Officer, Co-Founder, and Chairperson), Jennifer Ceran (Director), Allen Chaves, Jr. (CTO), Landon Edmond (Chief Legal Officer), Carmel Galvin (Insider), Ed Hallen (Co-Founder and Chief Strategy Officer,Director), Stephen Rowland (President), Susan St. Ledger (Director), and Amanda Whalen (CFO). Learn More on Klaviyo's active insiders.

Are insiders buying or selling shares of Klaviyo?

During the last year, Klaviyo insiders bought shares 1 times. They purchased a total of 3,900 shares worth more than $100,503.00. During the last year, insiders at the sold shares 48 times. They sold a total of 27,490,929 shares worth more than $896,146,872.46. The most recent insider tranaction occured on December, 4th when CEO Andrew Bialecki sold 952 shares worth more than $28,560.00. Insiders at Klaviyo own 49.9% of the company. Learn More about insider trades at Klaviyo.

Information on this page was last updated on 12/4/2025.

Andrew Bialecki Insider Trading History at Klaviyo

Transaction DateBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
12/4/2025Sell952$30.00$28,560.00View SEC Filing Icon  
12/2/2025Sell142,045$28.62$4,065,327.90View SEC Filing Icon  
11/24/2025Sell144,717$27.76$4,017,343.92View SEC Filing Icon  
11/18/2025Sell147,329$27.16$4,001,455.64View SEC Filing Icon  
10/14/2025Sell163,331$24.37$3,980,376.47View SEC Filing Icon  
10/7/2025Sell159,508$25.30$4,035,552.40View SEC Filing Icon  
9/30/2025Sell137,224$28.86$3,960,284.64View SEC Filing Icon  
9/23/2025Sell211,358$35.45$7,492,641.10View SEC Filing Icon  
9/16/2025Sell226,382$32.35$7,323,457.70View SEC Filing Icon  
9/9/2025Sell220,481$31.96$7,046,572.76View SEC Filing Icon  
9/2/2025Sell223,304$31.00$6,922,424.00View SEC Filing Icon  
8/26/2025Sell226,702$31.50$7,141,113.00View SEC Filing Icon  
See Full Table

Andrew Bialecki Buying and Selling Activity at Klaviyo

This chart shows Andrew Bialecki's buying and selling at Klaviyo by year and by quarter.

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Klaviyo Company Overview

Klaviyo logo
Klaviyo, Inc., a technology company, provides a software-as-a-service platform in the United States, other Americas, the Asia-Pacific, Europe, the Middle East, and Africa. The company offers Klaviyo, a cloud-native platform for data store, segmentation engine, campaigns and flows, and messaging infrastructure. It also provides email to send personalized marketing emails, including drag-and-drop email templates to edit and customize pre-built templates; email campaigns and automations with smart send time features, generative artificial intelligence for subject line creation, A/B testing tools, and consumer list segmentation; short message services to send targeted marketing text messages to consumers, as well as built-in contact cards to ensure that texts does not appear as random numbers; and push, a personalized push notification to engage with consumer. In addition, the company offers other applications, such as reviews, which collect product reviews; and customer data platform that allows to manage, deploy, transform, and sync data. It serves its products to entrepreneurs, small and medium-sized businesses to mid-market businesses, and enterprises. The was incorporated in 2012 and is headquartered in Boston, Massachusetts.
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Today's Range

Now: $29.98
Low: $29.03
High: $30.00

50 Day Range

MA: $27.05
Low: $23.68
High: $31.64

2 Week Range

Now: $29.98
Low: $23.44
High: $49.55

Volume

1,497,227 shs

Average Volume

2,846,972 shs

Market Capitalization

$9.05 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.18