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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
2026-01-15 Whalen Amanda Chief Financial Officer Sale 10b5-1 −6,174 $25.52 $158K 442,219
2026-01-15 Whalen Amanda Chief Financial Officer Conversion · Series B Common Stock 10b5-1 −4,045 344,918
2026-01-15 Edmond Landon Chief Legal Officer Sale 10b5-1 −5,601 $26.08 $146K 348,281
2026-01-15 Edmond Landon Chief Legal Officer Sale 10b5-1 −4,399 $25.52 $112K 343,882
2026-01-13 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +140,646 140,646
2026-01-13 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −50,319 $27.62 $1.4M 90,327
2026-01-13 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −90,327 $27.29 $2.5M 0
2026-01-13 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −140,646 69,274,090
2026-01-07 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +16,649 16,649
2026-01-07 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −16,649 $30.01 $500K 0
2026-01-07 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −16,649 69,414,736
2026-01-06 Bialecki Andrew Co-Chief Executive Officer Conversion 10b5-1 +137,504 137,504
2026-01-06 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −135,122 $28.92 $3.9M 2,382
2026-01-06 Bialecki Andrew Co-Chief Executive Officer Sale 10b5-1 −2,382 $28.52 $68K 0
2026-01-06 Bialecki Andrew Co-Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −137,504 69,431,385
2025-12-22 Bialecki Andrew Chief Executive Officer Conversion 10b5-1 +100,000 100,000
2025-12-22 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −93,066 $33.05 $3.1M 6,934
2025-12-22 Bialecki Andrew Chief Executive Officer Sale 10b5-1 −6,934 $31.94 $221K 0
2025-12-22 Bialecki Andrew Chief Executive Officer Conversion · Series B Common Stock 10b5-1 −100,000 69,568,889
2025-12-18 Edmond Landon Chief Legal Officer Sale 10b5-1 −13,718 $31.41 $431K 354,354

Page 8 of 31 · 613 trades