MacLennan David
Director · CAT, ECL
As of 2026-09-16, MacLennan David has 39 Form 4 transactions on record across 2 companies — 23 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market purchases filed in May in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-13 | ECL | Purchase | 1,000 @ $250.65 | $251K | +4.1% of holding | 25,230 | Form 4 |
| 2026-05-04 | CAT | Purchase | 250 @ $876.84 | $219K | +3.1% of holding | 8,206 | Form 4 |
| 2026-05-04 | ECL | Purchase | 800 @ $256.91 | $206K | +3.4% of holding | 24,230 | Form 4 |
| 2025-12-08 | ECL | Purchase | 750 @ $257.60 | $193K | +3.4% of holding | 23,035 | Form 4 |
| 2025-11-06 | CAT | Purchase | 300 @ $568.86 | $171K | +3.9% of holding | 7,947 | Form 4 |
| 2025-08-13 | ECL | Purchase | 600 @ $278.51 | $167K | +3.1% of holding | 20,253 | Form 4 |
| 2025-05-07 | ECL | Purchase | 500 @ $251.75 | $126K | +2.6% of holding | 19,465 | Form 4 |
| 2025-05-07 | CAT | Purchase | 375 @ $320.70 | $120K | +6.0% of holding | 6,653 | Form 4 |
| 2025-02-13 | ECL | Purchase | 400 @ $264.51 | $106K | +2.2% of holding | 18,767 | Form 4 |
30 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-30 | CAT | Award / grant | 22 | 476 | Form 4 |
| 2026-06-30 | ECL | Award / grant | 46 | 25,427 | Form 4 |
| 2026-06-30 | ECL | Award / grant | 130 | 25,381 | Form 4 |
| 2026-06-10 | CAT | Award / grant | 211 | 8,420 | Form 4 |
| 2026-05-15 | ECL | Award / grant | 732 | 732 | Form 4 |
| 2026-03-31 | CAT | Award / grant | 33 | 453 | Form 4 |
| 2026-03-31 | ECL | Award / grant | 49 | 23,430 | Form 4 |
| 2026-03-31 | ECL | Award / grant | 138 | 23,381 | Form 4 |
| 2025-12-31 | CAT | Award / grant | 30 | 419 | Form 4 |
| 2025-12-31 | ECL | Award / grant | 44 | 23,224 | Form 4 |
| 2025-12-31 | ECL | Award / grant | 128 | 23,180 | Form 4 |
| 2025-11-25 | CAT | Other acquisition | 72 | 389 | Form 4 |
| 2025-11-12 | ECL | Withheld for tax | 1,451 | 22,285 | Form 4 |
| 2025-11-12 | ECL | Option exercise | 3,300 | 23,736 | Form 4 |
| 2025-11-12 | ECL | Option exercise | 3,300 | 3,300 | Form 4 |
| 2025-09-30 | CAT | Award / grant | 37 | 315 | Form 4 |
| 2025-09-30 | ECL | Award / grant | 42 | 20,436 | Form 4 |
| 2025-09-30 | ECL | Award / grant | 123 | 20,394 | Form 4 |
| 2025-08-18 | CAT | Award / grant | 500 | 7,641 | Form 4 |
| 2025-06-30 | CAT | Award / grant | 43 | 277 | Form 4 |
| 2025-06-30 | ECL | Award / grant | 43 | 19,653 | Form 4 |
| 2025-06-30 | ECL | Award / grant | 126 | 19,610 | Form 4 |
| 2025-06-11 | CAT | Award / grant | 482 | 7,141 | Form 4 |
| 2025-05-12 | ECL | Award / grant | 810 | 810 | Form 4 |
| 2025-03-31 | CAT | Award / grant | 50 | 234 | Form 4 |
| 2025-03-31 | ECL | Award / grant | 46 | 18,965 | Form 4 |
| 2025-03-31 | ECL | Award / grant | 134 | 18,920 | Form 4 |
| 2024-12-31 | CAT | Award / grant | 45 | 183 | Form 4 |
| 2024-12-31 | ECL | Award / grant | 49 | 18,367 | Form 4 |
| 2024-12-31 | ECL | Award / grant | 144 | 18,304 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.