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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
Date Insider Transaction Shares Price Value Owned after
2025-10-10 Whalen Amanda Chief Financial Officer Sale 10b5-1 −9,808 $25.33 $248K 486,911
2025-10-10 Whalen Amanda Chief Financial Officer Sale 10b5-1 −5,192 $24.45 $127K 481,719
2025-10-10 Whalen Amanda Chief Financial Officer Conversion · Series B Common Stock 10b5-1 −15,000 393,476
2025-10-07 Bialecki Andrew Chief Executive Officer Conversion 10b5-1 +159,508 159,508
2025-10-07 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −144,890 $25.32 $3.7M 14,618
2025-10-07 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −14,618 $25.07 $366K 0
2025-10-07 Bialecki Andrew Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −159,508 74,296,737
2025-09-30 Bialecki Andrew Chief Executive Officer Conversion 10b5-1 +137,224 137,224
2025-09-30 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −17,960 $31.24 $561K 119,264
2025-09-30 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −6,048 $30.28 $183K 113,216
2025-09-30 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −44,672 $29.03 $1.3M 68,544
2025-09-30 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −39,733 $28.22 $1.1M 28,811
2025-09-30 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −28,811 $27.70 $798K 0
2025-09-30 Bialecki Andrew Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −137,224 74,456,245
2025-09-23 Bialecki Andrew Chief Executive Officer Conversion 10b5-1 +211,358 211,358
2025-09-23 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −181,553 $35.52 $6.4M 29,805
2025-09-23 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −29,805 $35.01 $1.0M 0
2025-09-23 Bialecki Andrew Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −211,358 74,593,469
2025-09-16 Bialecki Andrew Chief Executive Officer Conversion 10b5-1 +226,382 226,382
2025-09-16 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −140,921 $32.71 $4.6M 85,461

Page 13 of 33 · 656 trades