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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
2026-03-10 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −700 $19.34 $14K 0
2026-03-10 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −206,827 68,344,118
2026-03-05 Edmond Landon Chief Legal Officer Sale 10b5-1 −15,093 $20.16 $304K 326,728
2026-03-03 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +200,000 200,000
2026-03-03 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −154,022 $18.86 $2.9M 45,978
2026-03-03 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −45,978 $17.90 $823K 0
2026-03-03 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −200,000 68,550,945
2026-02-24 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +200,000 200,000
2026-02-24 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −160,356 $16.86 $2.7M 39,644
2026-02-24 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −39,644 $16.38 $649K 0
2026-02-24 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −200,000 68,750,945
2026-02-17 Edmond Landon Chief Legal Officer Conversion +11,052 341,821
2026-02-17 Edmond Landon Chief Legal Officer Conversion · Series B Common Stock −11,052 0
2026-02-15 Edmond Landon Chief Legal Officer Conversion +11,448 355,330
2026-02-15 Edmond Landon Chief Legal Officer Shares withheld for taxes −24,561 $18.60 $457K 330,769
2026-02-15 Edmond Landon Chief Legal Officer Conversion · Series B Common Stock −11,448 11,052
2026-02-15 Galvin Carmel Chief People Officer Shares withheld for taxes −23,050 $18.60 $429K 616,810
2026-02-15 Fernandez Gomez Luciano Co-Chief Executive Officer Shares withheld for taxes −23,308 $18.60 $434K 2,347,583
2026-02-15 Whalen Amanda Chief Financial Officer Conversion 10b5-1 +29,513 471,732
2026-02-15 Whalen Amanda Chief Financial Officer Shares withheld for taxes 10b5-1 −45,307 $18.60 $843K 426,425

Page 6 of 31 · 613 trades