Updated Jul 16, 2026
MacLennan David has filed 7 SEC Form 4 filings across 2 companies in the last 90 days — buying. Lifetime open-market purchases: $842K.

David L. Maclennan is a corporate executive known for his role as a director at Caterpillar Inc. and Ecolab Inc. He has extensive experience in the manufacturing and industrial sectors, contributing to strategic decisions and governance.
| Role | Insider |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-02 | ECL | ECOLAB INC. | A — Grant or award | 46 | $278.46 | $13K |
| 2026-07-02 | ECL | ECOLAB INC. | A — Grant or award | 130 | $0.00 | |
| 2026-06-11 | CAT | CATERPILLAR INC | A — Grant or award | 211 | $0.00 | |
| 2026-05-14 | ECL | ECOLAB INC. | P — Open-market purchase | 1.0K | $250.65 | $251K |
| 2026-05-05 | ECL | ECOLAB INC. | P — Open-market purchase | 800 | $256.91 | $206K |
| 2026-05-05 | CAT | CATERPILLAR INC | P — Open-market purchase | 250 | $876.84 | $219K |
| 2026-04-02 | ECL | ECOLAB INC. | A — Grant or award | 49 | $263.03 | $13K |
| 2026-04-02 | ECL | ECOLAB INC. | A — Grant or award | 138 | $0.00 | |
| 2025-09-30 | ECL | ECOLAB INC. | A — Grant or award | 42 | $273.87 | $12K |
| 2025-09-30 | ECL | ECOLAB INC. | A — Grant or award | 123 | $0.00 | |
| 2025-08-18 | CAT | CATERPILLAR INC | A — Grant or award | 500 | $407.76 | $204K |
| 2025-08-13 | ECL | ECOLAB INC. | P — Open-market purchase | 600 | $278.51 | $167K |
| 2025-06-30 | ECL | ECOLAB INC. | A — Grant or award | 43 | $267.48 | $12K |
| 2025-06-30 | ECL | ECOLAB INC. | A — Grant or award | 126 | $0.00 | |
| 2024-10-02 | ECL | ECOLAB INC. | A — Grant or award | 45 | $254.34 | $12K |
| 2024-10-02 | ECL | ECOLAB INC. | A — Grant or award | 133 | $0.00 |
David L. Maclennan is a corporate executive known for his role as a director at Caterpillar Inc. and Ecolab Inc. He has extensive experience in the manufacturing and industrial sectors, contributing to strategic decisions and governance.…
7 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 4 open-market purchases ($842K) and 0 open-market sales () across all tracked 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.
Open the live MacLennan David profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.