Summary
Updated Aug 31, 2026
Jeff Fagnan is 10% Owner of Klaviyo, Inc. (KVYO). 1 SEC Form 4 filing on record, dated 14 November 2024. Most recent open-market trade: bought $502K of KVYO on 14 November 2024. Lifetime open-market purchases: $502K.
Recent Transactions
3Every recent SEC Form 4 transaction Jeff Fagnan has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Jeff Fagnan go back to 2024: 1 primary Form 4 filing, an average of 0.3 per year. The typical open-market purchase is $502K (1 buy totaling $502K). The largest single buy on record is $502K of KVYO in 2024. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Jeff Fagnan 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.
- SUMMIT PARTNERS L P - $216.03M of KVYO open-market activity in the last 12 months
- Andrew Bialecki - $107.66M of KVYO open-market activity in the last 12 months
- Ed Hallen - $4.72M of KVYO open-market activity in the last 12 months
- Amanda Whalen - $3.33M of KVYO open-market activity in the last 12 months
- Landon Edmond - $1.44M of KVYO open-market activity in the last 12 months
- Stephen Eric Rowland - $594K of KVYO open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Jeff Fagnan?
Jeff Fagnan is a corporate insider, tracked as 10% Owner of Klaviyo, Inc. (KVYO). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Jeff Fagnan last file a Form 4?
The only primary Form 4 on record is dated 14 November 2024.
Has Jeff Fagnan been buying or selling stock?
Recorded transactions: 1 open-market purchase ($502K) and 0 open-market sales across all tracked filings.
Where can I see all of Jeff Fagnan's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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