SUMMIT PARTNERS L P

PrivateCIK: 830588
Location

BOSTON, MA

SUMMIT PARTNERS L P sold 5M shares of KLAVIYO, INC. on the open market

Open‑market sale worth $88.55M. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderSUMMIT PARTNERS L PCIK 830588
IssuerKLAVIYO, INC.CIK 1835830
10% Owner
Since Sep 2023
+5M
Net shares
Net buyer
$88.55M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
10M acquired · 5M disposed
Non-Derivative Transactions2

Series A Common Stock, par value $0.001 per share

Indirect
C · Conversion

Shares

+5M

Price / share

Trade value

% of position

New position
8/11/2026
0.005M

Series A Common Stock, par value $0.001 per share

Indirect
S · Sale

Shares

5M

Price / share

$17.71

Trade value

$88.55M

% of position

New position
8/11/2026
5M0.00
Total

Net shares

+0.00

Net value

-$88.55M

Derivative Transactions1

Series B Common Stock, par value $0.001 per share

Indirect
C · Conversion
Converts to

Series A Common Stock, par value $0.001 per share

5M shares

Shares

+5M

Strike price

Held after

13.85M

Exercisable

8/11/2026