Klaviyo, Inc. - Series A Common Stock (KVYO)

CUSIP: 49845K101

Q4 2025 13F Holders as of 31 Dec 2025

Type / Class
Equity / Series A Common Stock
Shares outstanding
146,054,512
Total 13F shares
158,315,243
Share change
+17,315,316
Total reported value
$5,140,491,105
Put/Call ratio
55%
Price per share
$32.47
Number of holders
257
Value change
+$589,046,240
Number of buys
143
Number of sells
147

Quarterly Holders Quick Answers

What is CUSIP 49845K101?
CUSIP 49845K101 identifies KVYO - Klaviyo, Inc. - Series A Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Institutional Holders of Klaviyo, Inc. - Series A Common Stock (KVYO) as of Q4 2025

As of 31 Dec 2025, Klaviyo, Inc. - Series A Common Stock (KVYO) was held by 257 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 158,315,243 shares. The largest 10 holders included SUMMIT PARTNERS L P, MORGAN STANLEY, VANGUARD GROUP INC, Capital International Investors, FMR LLC, ALLIANCEBERNSTEIN L.P., BlackRock, Inc., Sands Capital Alternatives, LLC, JPMORGAN CHASE & CO, and Whale Rock Capital Management LLC. This page lists 257 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.