Stephen Eric Rowland - 15 Nov 2025 Form 4 Insider Report for Klaviyo, Inc. (KVYO)

Reporting relationship: President
Issuer ticker: KVYO
Reported as of: 15 Nov 2025
Net transaction value: -$1,176,645
SEC form: 4
Accepted by SEC: 18 Nov 2025, 16:12:39 UTC
Prior SEC filing: 16 Oct 2025
Next SEC filing: 17 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Landon Edmond, Attorney-in-Fact

Key filing fact

Stephen Eric Rowland filed Form 4 for Klaviyo, Inc. (KVYO) on 18 Nov 2025.

Key facts

This page summarizes Stephen Eric Rowland's Form 4 filing for Klaviyo, Inc. (KVYO).
6 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 18 Nov 2025, 16:12.

Change

Previous filing in this sequence was filed on 16 Oct 2025.
Current net transaction value: -$1,176,645.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001639368 Primary reporting owner

Rowland Stephen Eric

Relationship: President
Address: C/O KLAVIYO, INC., 125 SUMMER STREET, 6TH FLOOR, BOSTON
Signature: /s/ Landon Edmond, Attorney-in-Fact
Signature date: 18 Nov 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

KVYO transaction

Series A Common Stock

Conversion of derivative security

Transaction value
Shares: +22,855
Change %: +5.3%
Price
Shares after: 454,371
Date: 15 Nov 2025
Ownership: Direct
Footnotes: F1, F2

KVYO transaction

Series A Common Stock

Tax liability

Transaction value: $982,067
Shares: -34,326
Change %: -7.6%
Price: $28.61
Shares after: 420,045
Date: 15 Nov 2025
Ownership: Direct
Footnotes: F3

KVYO transaction

Series A Common Stock

Conversion of derivative security

Transaction value
Shares: +28,457
Change %: +6.8%
Price
Shares after: 448,502
Date: 17 Nov 2025
Ownership: Direct
Footnotes: F2

KVYO transaction

Series A Common Stock

Sale

Transaction value: $194,579
Shares: -7,104
Change %: -1.6%
Price: $27.39
Shares after: 441,398
Date: 17 Nov 2025
Ownership: Direct
Footnotes: F4, F5, F6

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

KVYO transaction Derivative

Series B Common Stock

Conversion of derivative security

Transaction value: $0
Shares: -22,855
Change %: -5.6%
Price: $0.000000
Shares after: 387,641
Date: 15 Nov 2025
Ownership: Direct
Underlying class: Series A Common Stock
Underlying amount: 22,855
Exercise price
Footnotes: F1, F2

KVYO transaction Derivative

Series B Common Stock

Conversion of derivative security

Transaction value: $0
Shares: -28,457
Change %: -7.3%
Price: $0.000000
Shares after: 359,184
Date: 17 Nov 2025
Ownership: Direct
Underlying class: Series A Common Stock
Underlying amount: 28,457
Exercise price
Footnotes: F2, F7

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 7 footnotes

Footnote F1

Represents 22,855 shares of the Issuer's Series B Common Stock, par value $0.001 per share ("Series B Common Stock"), automatically converted into shares of the Issuer's Series A Common Stock, par value $0.001 per share ("Series A Common Stock"), in connection with tax withholding obligations related to the vesting and settlement of restricted stock units ("RSUs").

Footnote F2

Each share of Series B Common Stock is convertible at any time at the option of the holder into one share of Series A Common Stock and will automatically convert into one share of Series A Common Stock upon the occurrence of certain events as set forth in the Issuer's certificate of incorporation. The Series B Common Stock has no expiration date.

Footnote F3

Represents shares of Series A Common Stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs.

Footnote F4

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 22, 2024.

Footnote F5

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.96 to $27.86 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F6

Consists of (i) 157,599 shares of Series A Common Stock and (ii) 283,799 unvested RSUs awarded under the Issuer's 2023 Stock Option and Incentive Plan, each representing the contingent right to receive one share of Series A Common Stock upon vesting and settlement.

Footnote F7

Consists of 359,184 unvested RSUs awarded under the Issuer's 2015 Stock Incentive Plan, each representing the contingent right to receive one share of Series B Common Stock upon vesting and settlement.