Andrew Bialecki - Jun 11, 2025 Form 4 Insider Report for Klaviyo, Inc. (KVYO)

Role
Chief Executive Officer, Director, 10%+ Owner
Signature
/s/ Landon Edmond, Attorney-in-Fact
Stock symbol
KVYO
Transactions as of
Jun 11, 2025
Transactions value $
$0
Form type
4
Date filed
6/11/2025, 04:27 PM
Previous filing
May 16, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Bialecki Andrew Chief Executive Officer, Director, 10%+ Owner C/O KLAVIYO, INC., 125 SUMMER STREET, 6TH FLOOR, BOSTON /s/ Landon Edmond, Attorney-in-Fact 2025-06-11 0001991099

Transactions Table

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 -100K -0.13% $0.00 74.8M Jun 11, 2025 Series A Common Stock 100K Direct F1
holding KVYO Series B Common Stock 11.9M Jun 11, 2025 Series A Common Stock 11.9M By The Andrew P. Bialecki Grantor Retained Annuity Trust I of 2023 F1, F4
holding KVYO Series B Common Stock 517K Jun 11, 2025 Series A Common Stock 517K By The Elizabeth L. Bialecki Irrevocable GST Trust of 2023 F1, F5
holding KVYO Series B Common Stock 517K Jun 11, 2025 Series A Common Stock 517K By The Andrew P. Bialecki Irrevocable GST Trust of 2023 F1, F6
holding KVYO Series B Common Stock 43.2K Jun 11, 2025 Series A Common Stock 43.2K By spouse F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each share of the Issuer's Series B Common Stock, par value $0.001 per share ("Series B Common Stock"), is convertible at any time at the option of the holder into one share of the Issuer's Series A Common Stock, par value $0.001 per share ("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.
F2 The Reporting Person directed the transfer of 100,000 shares of their Series B Common Stock in connection with a bona fide gift to a donor-advised fund, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the transfer pursuant to the Issuer's certificate of incorporation.
F3 Represents a bona fide gift of 100,000 shares of stock from the Reporting Person to a donor-advised fund. The Reporting Person directed the transfer of 100,000 shares of their Series B Common Stock, resulting in the automatic conversion of the shares into Series A Common Stock upon execution of the transfer.
F4 Shares held by the Andrew P. Bialecki Grantor Retained Annuity Trust I of 2023, of which the Reporting Person serves as trustee. The Reporting Person disclaims Section 16 beneficial ownership of such shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed to be an admission that he has beneficial ownership of such shares for Section 16 or any other purpose.
F5 Shares held by the Elizabeth L. Bialecki Irrevocable GST Trust of 2023, of which the Reporting Person serves as a trustee. The Reporting Person disclaims Section 16 beneficial ownership of such shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed to be an admission that he has beneficial ownership of such shares for Section 16 or any other purpose.
F6 Shares held by the Andrew P. Bialecki Irrevocable GST Trust of 2023, of which the Reporting Person's spouse serves as a trustee. The Reporting Person disclaims Section 16 beneficial ownership of such shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed to be an admission that he has beneficial ownership of such shares for Section 16 or any other purpose.