Klaviyo, Inc. Series A

Historical 13F Holders

Symbol
KVYO
CUSIP
49845K101
All holders as of
Q2 2026
Type
Equity
Class
COM SER A
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 49845K101 since 12/18/2024, largest first.

Filer % of Class Filed
Bialecki Andrew 13G/A 36.5% 8/5/2026
Event 6/30/2026
Shopify Inc. 13D/A
20.8% 8/31/2026
Event 8/5/2026
Hallen Ed 13G/A 19.4% 11/5/2025
Event 9/30/2025
Summit Partners, L.P. 13G/A
12.0% 11/13/2025
Event 9/30/2025
Accomplice Fund I, L.P. 13G/A
10.5% 5/7/2025
Event 3/31/2025
Capital International Investors 13G/A 8.0% 5/14/2026
Event 3/31/2026
BlackRock, Inc. 13G 5.3% 7/29/2026
Event 6/30/2026
Vanguard Portfolio Management LLC 13G 5.2% 4/29/2026
Event 3/31/2026
Vanguard Capital Management LLC 13G 5.0% 7/31/2026
Event 6/30/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (8)
Accel Growth Fund V L.P. 13G/A
4.9% 5/13/2025
Event 3/31/2025
Sands Capital Ventures, LLC 13G/A
4.9% 5/14/2025
Event 3/31/2025
FMR LLC 13G/A
4.7% 8/6/2026
Event 6/30/2026
AllianceBernstein L.P. 13G/A 4.4% 5/14/2025
Event 3/31/2025
Morgan Stanley 13G/A 4.1% 3/6/2026
Event 2/28/2026
Capital Research Global Investors 13G/A 3.8% 2/13/2025
Event 12/31/2024
Clearbridge Investments, LLC 13G/A 3.0% 10/31/2024
Event 9/30/2024
Vanguard Group Inc 13G/A 0% 3/27/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 7 778 k $12.2 M
2026 Q2 302 148 M $2.35 B
2026 Q1 287 157 M $3.10 B
2025 Q4 283 161 M $5.23 B
2025 Q3 310 143 M $3.97 B
2025 Q2 284 135 M $4.54 B
2025 Q1 245 118 M $3.58 B
2024 Q4 209 115 M $4.74 B
2024 Q3 174 113 M $4.01 B
2024 Q2 149 115 M $2.85 B
2024 Q1 150 100 M $2.55 B
2023 Q4 115 78.4 M $2.18 B
2023 Q3 106 76.2 M $2.63 B