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Klaviyo (KVYO) president details Rule 10b5-1 stock sales

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Klaviyo, Inc.’s president reported selling shares of Series A Common Stock in an insider transaction. On 12/15/2025, the officer sold 3,913 and 3,191 shares at weighted average prices of $29.81 and $29.01 per share, respectively. These sales were executed pursuant to a Rule 10b5-1 trading plan adopted on November 22, 2024.

After the reported sales, the president beneficially owns 434,294 securities, consisting of 150,495 shares of Series A Common Stock and 283,799 unvested restricted stock units, each representing the contingent right to receive one share upon vesting and settlement. All reported holdings are listed as directly owned.

Positive

  • None.

Negative

  • None.
Insider Rowland Stephen Eric
Role President
Sold 7,104 shs ($209K)
Type Security Shares Price Value
Sale Series A Common Stock 3,913 $29.81 $117K
Sale Series A Common Stock 3,191 $29.01 $93K
Holdings After Transaction: Series A Common Stock — 437,485 shares (Direct)
Footnotes (1)
  1. 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $29.38 to $30.35 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.83 to $29.33 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. Consists of (i) 150,495 shares of the Issuer's Series A Common Stock, par value $0.001 per share ("Series A Common Stock"), and (ii) 283,799 unvested restricted stock units 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.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
 Check this box to indicate that a 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). See Instruction 10.
1. Name and Address of Reporting Person*
Rowland Stephen Eric
(Last) (First) (Middle)
C/O KLAVIYO, INC.
125 SUMMER STREET, 6TH FLOOR
(Street)
BOSTON MA 02110
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Klaviyo, Inc. [ KVYO ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
President
3. Date of Earliest Transaction (Month/Day/Year)
12/15/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Series A Common Stock 12/15/2025 S(1) 3,913 D $29.81(2) 437,485 D
Series A Common Stock 12/15/2025 S(1) 3,191 D $29.01(3) 434,294(4) D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. 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.
2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $29.38 to $30.35 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.
3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.83 to $29.33 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.
4. Consists of (i) 150,495 shares of the Issuer's Series A Common Stock, par value $0.001 per share ("Series A Common Stock"), and (ii) 283,799 unvested restricted stock units 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.
Remarks:
/s/ Landon Edmond, Attorney-in-Fact 12/17/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What insider stock transaction did Klaviyo (KVYO) report for its president?

The president of Klaviyo, Inc. reported selling 3,913 and 3,191 shares of Series A Common Stock on 12/15/2025 in open-market transactions.

Were the KVYO president’s stock sales made under a Rule 10b5-1 trading plan?

Yes. The filing states the transactions were effected under a Rule 10b5-1 trading plan adopted by the reporting person on November 22, 2024.

At what prices did the Klaviyo (KVYO) president sell shares?

The weighted average sale prices were $29.81 per share (with trades from $29.38 to $30.35) and $29.01 per share (with trades from $28.83 to $29.33).

How many Klaviyo shares does the president beneficially own after these transactions?

After the reported sales, the president beneficially owns 434,294 securities, consisting of 150,495 shares of Series A Common Stock and 283,799 unvested restricted stock units.

What type of equity awards are included in the Klaviyo (KVYO) president’s holdings?

Holdings include unvested restricted stock units awarded under the 2023 Stock Option and Incentive Plan, each RSU representing the contingent right to receive one share of Series A Common Stock upon vesting and settlement.

What is the reporting person’s relationship to Klaviyo (KVYO)?

The reporting person is an officer of Klaviyo, Inc., serving as President, and the filing is made for one reporting person with direct ownership.