SUMMIT PARTNERS L P

Position in KVYO — Klaviyo, Inc.

CIK 830588 BOSTON, MA

Position in KVYO

as of Jun 30, 2026 · filed Jul 30, 2026 Compact

Position Value

$284,676,947

-$82,198,112 QoQ

Shares Held

18,852,778

0.0% QoQ

Ownership

6.62%

of shares outstanding

% of Portfolio

46.75%

of 13F equity value

Holder Rank

of 273 holders

Holding Since

Sep 2023

12 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

SUMMIT PARTNERS L P holds $284,676,947 across 1 Software - Application name. KVYO ranks #1 (100.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	KVYO	Klaviyo, Inc. This page	18,852,778	$284,676,947

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$284,676,947	18,852,778	0.0%	Shares	Sole	2026-07-30
2026-03-31	$366,875,059	18,852,778	0.0%	Shares	Sole	2026-05-08
2025-12-31	$612,149,701	18,852,778	0.0%	Shares	Sole	2026-02-06
2025-09-30	$522,033,422	18,852,778	-51.4%	Shares	Sole	2025-11-13
2025-09-30	$522,033,422	18,852,778	-38.8%	Shares	Sole	2025-11-04
2025-06-30	$1,035,196,785	30,827,778	-20.6%	Shares	Sole	2025-11-04
2025-03-31	$1,174,928,562	38,827,778	-4.9%	Shares	Sole	2025-05-05
2025-03-31	$1,174,928,562	38,827,778	-4.9%	Shares	Sole	2025-05-07
2024-12-31	$1,683,737,564	40,827,778	—	Shares	Sole	2025-02-07
2024-12-31	$1,683,737,564	40,827,778	-12.1%	Shares	Sole	2025-02-04
2024-09-30	$1,642,614,785	46,427,778	-2.8%	Shares	Sole	2024-10-31
2024-06-30	$1,188,289,145	47,741,629	0.0%	Shares	Sole	2024-07-18
2024-03-31	$1,216,456,706	47,741,629	0.0%	Shares	Sole	2024-05-15
2023-12-31	$1,326,262,453	47,741,629	-3.6%	Shares	Sole	2024-01-12
2023-09-30	$1,708,162,171	49,511,947	—	Shares	Sole	2023-10-24
No filing history on record for this holder in this stock.