Summit Partners Growth Equity Fund IX-A, L.P.

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

Stocks Covered

Latest Filing

Nov 13, 2025

Filings

Klaviyo, Inc.

SC 13G/A · Nov 13, 2025

7.1%

11.1M shares

Klaviyo, Inc.

SC 13G/A · Aug 8, 2025

12.3%

18.2M shares

Klaviyo, Inc.

SC 13G/A · May 7, 2025

17.7%

22.9M shares

Klaviyo, Inc.

SC 13G/A · Feb 8, 2025

20.2%

24.1M shares

Klaviyo, Inc.

SC 13G/A · Nov 8, 2024

23.1%

27.4M shares

Markforged Holding Corporation

SC 13G/A · Jan 31, 2024

4.5%

8.9M shares

Klaviyo, Inc.

SC 13G · Jan 31, 2024

33.2%

28.2M shares