KLAVIYO INC

Ticker: KVYO CUSIP: 49845K101 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 678 Value ($000) $22 Avg Close $28.01 Range $23.44 - $33.35

Q3 2025

Shares 11,147 Value ($000) $0 Avg Close $32.29 Range $27.66 - $36.76

Q2 2025

Shares 1,454 Value ($000) $0 Avg Close $31.68 Range $23.77 - $37.79

Q2 2024

Shares 6,228 Value ($000) $0 Avg Close $23.40 Range $21.26 - $25.78

Q1 2024

Shares 19,646 Value ($000) $1 Avg Close $26.71 Range $22.82 - $32.40

Q4 2023

Shares 17,959 Value ($000) $0 Avg Close $29.60 Range $24.35 - $35.66

Q3 2023

Shares 7,928 Value ($000) $0 Avg Close $34.31 Range $30.26 - $39.47

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	678	$22	$28.01	$23.44 - $33.35
Q3 2025	11,147	$0	$32.29	$27.66 - $36.76
Q2 2025	1,454	$0	$31.68	$23.77 - $37.79
Q2 2024	6,228	$0	$23.40	$21.26 - $25.78
Q1 2024	19,646	$1	$26.71	$22.82 - $32.40
Q4 2023	17,959	$0	$29.60	$24.35 - $35.66
Q3 2023	7,928	$0	$34.31	$30.26 - $39.47