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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.

Date Insider Transaction Shares Price Value Owned after
2025-11-15 Whalen Amanda Chief Financial Officer Conversion · Series B Common Stock 10b5-1 −29,513 348,963
2025-11-14 Whalen Amanda Chief Financial Officer Conversion 10b5-1 +15,000 496,719
2025-11-14 Whalen Amanda Chief Financial Officer Sale 10b5-1 −14,700 $28.61 $421K 482,019
2025-11-14 Whalen Amanda Chief Financial Officer Sale 10b5-1 −300 $27.89 $8K 481,719
2025-11-14 Whalen Amanda Chief Financial Officer Conversion · Series B Common Stock 10b5-1 −15,000 378,476
2025-11-14 Shopify Strategic Holdings 3 LLC 10% owner Option exercise · Warrants to Purchase Series B Common Stock (Right to Buy) −344,381 2,410,676
2025-11-14 Shopify Strategic Holdings 3 LLC 10% owner Option exercise · Series B Common Stock +344,381 $0.01 $3K 16,284,344
2025-11-11 Bialecki Andrew Chief Executive Officer Conversion 10b5-1 +140,464 140,464
2025-11-11 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −140,464 $29.74 $4.2M 0
2025-11-11 Bialecki Andrew Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −140,464 73,992,942
2025-11-11 Hallen Ed Director Sale 10b5-1 −545 $30.00 $16K 168,659
2025-11-11 Hallen Ed Director Sale 10b5-1 −2,266 $30.00 $68K 608,518
2025-11-10 Hallen Ed Director Sale 10b5-1 −8,572 $30.05 $258K 169,204
2025-11-10 Hallen Ed Director Sale 10b5-1 −50,920 $30.04 $1.5M 651,296
2025-11-10 Hallen Ed Director Gift 10b5-1 −40,512 610,784
2025-10-15 Rowland Stephen Eric President Sale 10b5-1 −7,105 $24.35 $173K 431,516
2025-10-14 Bialecki Andrew Chief Executive Officer Conversion 10b5-1 +163,331 163,331
2025-10-14 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −163,331 $24.37 $4.0M 0
2025-10-14 Bialecki Andrew Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −163,331 74,133,406
2025-10-10 Whalen Amanda Chief Financial Officer Conversion 10b5-1 +15,000 496,719

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