Summary
Updated Aug 31, 2026
John T. Guthrie is EVP, CFO and Assistant Sec. of SiteOne Landscape Supply, Inc. (SITE). 2 SEC Form 4 filings on record, most recently on 1 December 2025. Most recent open-market trade: sold $258K of SITE on 1 December 2025. Lifetime open-market sales: $258K.
Recent Transactions
3Every recent SEC Form 4 transaction John T. Guthrie has reported, most recent first.
Trading Pattern
InsiderAlpha's records for John T. Guthrie go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. 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 John T. Guthrie 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.
- Doug Black - $1.30M of SITE open-market activity in the last 12 months
- Eric J. Elema - $279K of SITE open-market activity in the last 12 months
- Daniel T. Laughlin - $247K of SITE open-market activity in the last 12 months
- Fred M. Diaz - $128K of SITE 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 John T. Guthrie?
John T. Guthrie is a corporate insider, tracked as EVP, CFO and Assistant Sec. of SiteOne Landscape Supply, Inc. (SITE). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did John T. Guthrie last file a Form 4?
The most recent primary Form 4 on record is dated 1 December 2025, one of 2 filings going back to 2025.
Has John T. Guthrie been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($258K) across all tracked filings.
Where can I see all of John T. Guthrie'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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