Insiders who reported open-market trades in the last 12 months at the companies SUMMIT PARTNERS L P files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Andrew Bialecki - $66.90M in KVYO purchases and sales in the last 12 months
Ed Hallen - $5.61M in KVYO purchases and sales in the last 12 months
Landon Edmond - $2.68M in KVYO purchases and sales in the last 12 months
Amanda Whalen - $2.48M in KVYO purchases and sales in the last 12 months
SUMMIT PARTNERS L P is an investment firm, tracked as 10% Owner of Klaviyo, Inc. (KVYO). InsiderAlpha holds 10 primary Form 4 filings for it, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has SUMMIT PARTNERS L P submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has SUMMIT PARTNERS L P been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($679.35M) across all tracked filings.
SUMMIT PARTNERS L P is 10% Owner of Klaviyo, Inc. (KVYO). 10 SEC Form 4 filings on record going back to 2024, most recently on 13 August 2026. Most recent open-market trade: sold $88.55M of KVYO on 13 August 2026. Lifetime open-market sales: $679.35M.
Recent transactions
17
The latest 17 SEC Form 4 transactions reported by SUMMIT PARTNERS L P.
InsiderAlpha's records for SUMMIT PARTNERS L P go back to 2024: 10 primary Form 4 filings, an average of 3.3 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
