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CIK 0001835830 · Large accelerated filer

Klaviyo, Inc.

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Ticker
KVYO
Exchange
NYSE
Industry
Services-Prepackaged Software
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
800-338-1744
Business address
125 SUMMER STREET, FLOOR 6, BOSTON, MA, 02110
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$7,407,736
in 7 filings, $7.4M under 10b5-1 plans

Net −$7,407,736. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Hallen Ed −$5.9M Director sold 49% of stake
  2. Edmond Landon −$1.2M Chief Legal Officer sold 11% of stake
  3. Oulman Roxanne −$285K Director sold 37% of stake
  4. St. Ledger Susan −$37K Director sold 9% of stake

Reading 20 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-04-14 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −90,858 $16.94 $1.5M 0
2026-04-14 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −200,000 67,344,118
2026-04-07 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +200,000 200,000
2026-04-07 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −200,000 $18.63 $3.7M 0
2026-04-07 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −200,000 67,544,118
2026-03-31 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +200,000 200,000
2026-03-31 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −200,000 $19.42 $3.9M 0
2026-03-31 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −200,000 67,744,118
2026-03-24 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +200,000 200,000
2026-03-24 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −200,000 $18.17 $3.6M 0
2026-03-24 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −200,000 67,944,118
2026-03-17 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +200,000 200,000
2026-03-17 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −97,379 $19.60 $1.9M 102,621
2026-03-17 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −102,621 $19.15 $2.0M 0
2026-03-17 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −200,000 68,144,118
2026-03-12 Edmond Landon Chief Legal Officer Sale 10b5-1 −14,366 $20.15 $289K 312,362
2026-03-12 Whalen Amanda Chief Financial Officer Sale 10b5-1 −8,923 $19.72 $176K 417,502
2026-03-12 Whalen Amanda Chief Financial Officer Sale 10b5-1 −5,077 $19.34 $98K 412,425
2026-03-10 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +206,827 206,827
2026-03-10 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −206,127 $19.96 $4.1M 700

Page 5 of 31 · 613 trades