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MarketsSEC EDGAR SCHEDULE 13GFiled 12 h ago

Klaviyo, Inc.: SUMMIT PARTNERS L P amends Schedule 13G stake filing

Open the sourceReported by SEC EDGAR SCHEDULE 13G, sec.gov, 14 November 2026, by SEC EDGAR SCHEDULE 13G

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Summit Partners L.P. amended its Schedule 13G stake filing for Klaviyo, Inc., disclosing the change to the SEC under accession number 0001193125-26-461315. The filing updates the private equity firm's reported ownership position in the marketing automation company. The amendment matters because it signals a shift in a major institutional holder's stake, which can influence investor sentiment around Klaviyo's shareholder base. Investors will watch for further 13G or 13D filings to confirm whether Summit Partners is accumulating or reducing its position.

Muhabbit's AI wrote this summary in its own words from SEC EDGAR SCHEDULE 13G's report. It can get details wrong, so check the source.

Named in this story

Klaviyo, Inc., Summit Partners L P