// company-profile

Klaviyo, Inc.

KVYO
ExchangeNYSESectorServices-Prepackaged SoftwareInc.DEFilings209Insiders27
// api This Klaviyo, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.

// activity-summary

Recent insider activity is bullish. Over the last 30 days, 4 insiders purchased shares versus 1 sale. Buying was led by Weisman Tony.

// 90-day insight

Over the last 90 days, Klaviyo, Inc. insiders bought $0 (10 transactions) and sold $1.7M (5 transactions).

  • Most active insider: Bialecki Andrew with 18 transactions totaling $16.2M.
  • Largest single sale: $3.7M by Bialecki Andrew on Apr 7, 2026.
  • 71% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Klaviyo, Inc. as of 2026-03-31

↓ decreasing
Total reported AUM
$2.86B
QoQ change
-42.9%
Reporting period
2026-03-31
#1
SUMMIT PARTNERS L P
CIK 830588
$366.9M
18.9M shares
#2
Capital International Investors
CIK 1562230
$227.8M
11.7M shares
#3
Whale Rock Capital Management LLC
CIK 1387322
$132.8M
6.8M shares

Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 18, 2026Whalen AmandaKVYO
Sale10b5
14,000$13.23$185K
Jun 11, 2026Oulman RoxanneKVYO
C
8,169$0.00$0K
Jun 11, 2026Oulman RoxanneKVYO
C
8,169
Jun 9, 2026Weisman TonyKVYO
Award
14,822$0.00$0K
Jun 9, 2026St. Ledger SusanKVYO
Award
14,822$0.00$0K

45 more transactions hidden

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