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

Role
President
Signature
/s/ Landon Edmond, Attorney-in-Fact
Stock symbol
KVYO
Transactions as of
Nov 15, 2025
Transactions value $
-$1,176,645
Form type
4
Date filed
11/18/2025, 04:12 PM
Previous filing
Oct 16, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Rowland Stephen Eric President C/O KLAVIYO, INC., 125 SUMMER STREET, 6TH FLOOR, BOSTON /s/ Landon Edmond, Attorney-in-Fact 2025-11-18 0001639368

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction KVYO Series A Common Stock Conversion of derivative security +22.9K +5.3% 454K Nov 15, 2025 Direct F1, F2
transaction KVYO Series A Common Stock Tax liability -$982K -34.3K -7.55% $28.61 420K Nov 15, 2025 Direct F3
transaction KVYO Series A Common Stock Conversion of derivative security +28.5K +6.77% 449K Nov 17, 2025 Direct F2
transaction KVYO Series A Common Stock Sale -$195K -7.1K -1.58% $27.39 441K Nov 17, 2025 Direct F4, F5, F6

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction KVYO Series B Common Stock Conversion of derivative security $0 -22.9K -5.57% $0.00 388K Nov 15, 2025 Series A Common Stock 22.9K Direct F1, F2
transaction KVYO Series B Common Stock Conversion of derivative security $0 -28.5K -7.34% $0.00 359K Nov 17, 2025 Series A Common Stock 28.5K Direct F2, F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
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").
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.
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.
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.
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.
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.
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.