David MacLennan
Known title: DirectorCIK: 0001498535
David MacLennan's purchase track record
How the stock did after each of David MacLennan's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.
Purchases measured
19
of 22 since February 7, 2022
Stock higher 6 months later
84%
3 months: 64%
Median 6-month return
+8.0%
3 months: +3.5%
Beat the S&P 500
58%
median +0.9% vs. index
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 5/13/2026 | ECL | $251K | +11.9% | pending | — |
| 5/4/2026 | CAT | $219K | -4.9% | pending | — |
| 5/4/2026 | ECL | $206K | +11.1% | pending | — |
| 12/8/2025 | ECL | $193K | +9.9% | +0.7% | +8.2% |
| 11/6/2025 | CAT | $171K | +19.3% | +57.9% | +9.2% |
| 8/13/2025 | ECL | $167K | -7.1% | +8.3% | +7.3% |
| 5/7/2025 | ECL | $126K | +5.9% | +2.3% | +20.7% |
| 5/7/2025 | CAT | $120K | +34.0% | +78.9% | +20.7% |
| 2/13/2025 | ECL | $106K | -3.4% | +6.0% | +5.8% |
| 8/2/2024 | ECL | $156K | +3.3% | +6.0% | +13.0% |
| 5/3/2024 | ECL | $148K | +4.5% | +8.0% | +11.7% |
| 5/3/2024 | CAT | $169K | -4.3% | +13.6% | +11.7% |
| 2/23/2024 | CAT | $113K | +8.1% | +8.4% | +10.7% |
| 12/1/2023 | ECL | $153K | +17.5% | +21.3% | +14.9% |
| 8/7/2023 | ECL | $119K | -5.2% | +6.6% | +9.4% |
| 6/14/2023 | ECL | $126K | +0.5% | +11.1% | +7.6% |
| 2/17/2023 | CAT | $100K | -12.8% | +11.7% | +7.1% |
| 11/8/2022 | ECL | $112K | +8.0% | +23.0% | +7.6% |
| 5/5/2022 | CAT | $132K | -14.4% | +2.9% | -10.3% |
| 5/5/2022 | ECL | $103K | +0.4% | -20.7% | -10.3% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 16, 2026
Caterpillar Shares Slide 3% as AI Power Trade Pulls Back. Caterpillar shares fell 3% as the AI‑related power sector retreated, while the broader market gained. Analysts compare the company to Generac, noting differences in earnings and growth outlooks. Caterpillar’s recent North Carolina projects aim to support sustainable growth, though the impact on earnings is still uncertain.
Transaction History
| ECL | ▲ Buy | Grant | 130 | $0 | 6/30/2026 | View on chart |
| ECL | ▲ Buy | Grant | 46 | $13K | 6/30/2026 | View on chart |
| CAT | ▲ Buy | Grant | 211 | $0 | 6/10/2026 | View on chart |
| ECL | ▲ Buy | Open Market | 1,000 | $251K | 5/13/2026 | View on chart |
| CAT | ▲ Buy | Open Market | 250 | $219K | 5/4/2026 | View on chart |
| ECL | ▲ Buy | Open Market | 800 | $206K | 5/4/2026 | View on chart |
| ECL | ▲ Buy | Grant | 138 | $0 | 3/31/2026 | View on chart |
| ECL | ▲ Buy | Grant | 49 | $13K | 3/31/2026 | View on chart |
| ECL | ▲ Buy | Grant | 44 | $12K | 12/31/2025 | View on chart |
| ECL | ▲ Buy | Grant | 128 | $0 | 12/31/2025 | View on chart |
| ECL | ▲ Buy | Open Market | 750 | $193K | 12/8/2025 | View on chart |
| ECL | ▲ Buy | Option Exercise | 3,300 | $380K | 11/12/2025 | View on chart |
| ECL | ▼ Sell | Tax Withholding | 1,451 | $380K | 11/12/2025 | View on chart |
| CAT | ▲ Buy | Open Market | 300 | $171K | 11/6/2025 | View on chart |
| ECL | ▲ Buy | Grant | 42 | $12K | 9/30/2025 | View on chart |
| ECL | ▲ Buy | Grant | 123 | $0 | 9/30/2025 | View on chart |
| CAT | ▲ Buy | Grant | 500 | $204K | 8/18/2025 | View on chart |
| ECL | ▲ Buy | Open Market | 600 | $167K | 8/13/2025 | View on chart |
| ECL | ▲ Buy | Grant | 126 | $0 | 6/30/2025 | View on chart |
| ECL | ▲ Buy | Grant | 43 | $12K | 6/30/2025 | View on chart |
| CAT | ▲ Buy | Grant | 482 | $170K | 6/11/2025 | View on chart |
| ECL | ▲ Buy | Open Market | 500 | $126K | 5/7/2025 | View on chart |
| CAT | ▲ Buy | Open Market | 375 | $120K | 5/7/2025 | View on chart |
| ECL | ▲ Buy | Grant | 46 | $12K | 3/31/2025 | View on chart |
| ECL | ▲ Buy | Grant | 134 | $0 | 3/31/2025 | View on chart |
| ECL | ▲ Buy | Open Market | 400 | $106K | 2/13/2025 | View on chart |
| ECL | ▲ Buy | Grant | 144 | $0 | 12/31/2024 | View on chart |
| ECL | ▲ Buy | Grant | 49 | $12K | 12/31/2024 | View on chart |
| ECL | ▲ Buy | Grant | 45 | $12K | 9/30/2024 | View on chart |
| ECL | ▲ Buy | Grant | 133 | $0 | 9/30/2024 | View on chart |
| ECL | ▲ Buy | Open Market | 650 | $156K | 8/2/2024 | View on chart |
| ECL | ▲ Buy | Grant | 49 | $12K | 6/30/2024 | View on chart |
| ECL | ▲ Buy | Grant | 141 | $0 | 6/30/2024 | View on chart |
| CAT | ▲ Buy | Grant | 517 | $170K | 6/12/2024 | View on chart |
| ECL | ▲ Buy | Open Market | 650 | $148K | 5/3/2024 | View on chart |
| CAT | ▲ Buy | Open Market | 500 | $169K | 5/3/2024 | View on chart |
| ECL | ▲ Buy | Grant | 146 | $0 | 3/31/2024 | View on chart |
| ECL | ▲ Buy | Grant | 53 | $12K | 3/31/2024 | View on chart |
| CAT | ▲ Buy | Open Market | 350 | $113K | 2/23/2024 | View on chart |
| ECL | ▲ Buy | Grant | 157 | $0 | 12/31/2023 | View on chart |
| ECL | ▲ Buy | Open Market | 800 | $153K | 12/1/2023 | View on chart |
| ECL | ▲ Buy | Grant | 184 | $0 | 9/30/2023 | View on chart |
| CAT | ▲ Buy | Grant | 450 | $125K | 8/7/2023 | View on chart |
| ECL | ▲ Buy | Open Market | 650 | $119K | 8/7/2023 | View on chart |
| ECL | ▲ Buy | Grant | 168 | $0 | 6/30/2023 | View on chart |
| CAT | ▲ Buy | Grant | 698 | $170K | 6/14/2023 | View on chart |
| ECL | ▲ Buy | Open Market | 700 | $126K | 6/14/2023 | View on chart |
| ECL | ▲ Buy | Grant | 190 | $0 | 3/31/2023 | View on chart |
| CAT | ▲ Buy | Open Market | 400 | $100K | 2/17/2023 | View on chart |
| ECL | ▲ Buy | Grant | 500 | $82K | 2/16/2023 | View on chart |
| ECL | ▲ Buy | Grant | 215 | $0 | 12/31/2022 | View on chart |
| ECL | ▲ Buy | Open Market | 800 | $112K | 11/8/2022 | View on chart |
| ECL | ▲ Buy | Grant | 214 | $0 | 9/30/2022 | View on chart |
| ECL | ▲ Buy | Grant | 205 | $0 | 6/30/2022 | View on chart |
| CAT | ▲ Buy | Grant | 816 | $188K | 6/8/2022 | View on chart |
| CAT | ▲ Buy | Open Market | 600 | $132K | 5/5/2022 | View on chart |
| ECL | ▲ Buy | Open Market | 600 | $103K | 5/5/2022 | View on chart |
| ECL | ▲ Buy | Grant | 175 | $0 | 3/31/2022 | View on chart |
| ECL | ▲ Buy | Open Market | 600 | $107K | 2/18/2022 | View on chart |
| CAT | ▲ Buy | Open Market | 480 | $96K | 2/7/2022 | View on chart |
| ECL | ▲ Buy | Grant | 123 | $0 | 12/31/2021 | View on chart |
| ECL | ▲ Buy | Grant | 136 | $0 | 9/30/2021 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 17, 2026
RBC and Citi highlight Ecolab's pricing power and specialty chemical strength
Recent analyst notes from RBC Capital Markets and Citi have focused on Ecolab's ability to maintain pricing and organic growth. These firms view the company as a defensive option that may benefit from a weaker dollar. The positive sentiment aligns with the stock trading near its 52-week high, reflecting strong investor interest in its stable earnings profile.
RBC and Citi highlight Ecolab's pricing power and specialty chemical strength. Recent analyst notes from RBC Capital Markets and Citi have focused on Ecolab's ability to maintain pricing and organic growth. These firms view the company as a defensive option that may benefit from a weaker dollar. The positive sentiment aligns with the stock trading near its 52-week high, reflecting strong investor interest in its stable earnings profile.