Insiders who reported open-market trades in the last 12 months at the companies David Maclennan 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.
Lange Bob de - $69.14M in CAT purchases and sales in the last 12 months
Anthony D. Fassino - $45.82M in CAT purchases and sales in the last 12 months
Denise C. Johnson - $43.74M in CAT purchases and sales in the last 12 months
Joseph E. Creed - $28.01M in CAT purchases and sales in the last 12 months
David Maclennan is a corporate insider, tracked as Director of ECOLAB INC. (ECL). InsiderAlpha holds 22 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has David Maclennan submitted recently?
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Has David Maclennan been buying or selling stock?
Recorded transactions: 5 open-market purchases ($1.01M) and 0 open-market sales across all tracked filings.
David Maclennan is Director of ECOLAB INC. (ECL). 22 SEC Form 4 filings on record going back to 2024, most recently on 2 October 2026. Most recent open-market trade: bought $251K of ECL on 14 May 2026. Lifetime open-market purchases: $1.01M.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by David Maclennan.
InsiderAlpha's records for David Maclennan go back to 2024: 22 primary Form 4 filings, an average of 7.3 per year. The typical open-market purchase is $203K (5 buys totaling $1.01M). The largest single buy on record is $251K of ECL in 2026. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
