Cook Gregory B, EVP and President of the Institutional Group at Ecolab Inc. ($ECL), sold about $1.6 million in company shares through two open market transactions over the past year. His most recent sale occurred on February 26, 2026. These sales rank 3,877th among 11,678 individual insiders, below the average sale value of $8.6 million across roughly 6.4 transactions per insider. Cook made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 26, 2026 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Employee Stock Option (Right to Buy) | 3800 | $0.00 | 0.0000 | 285,200,000 | 100.00% | 0.00% |
| Feb. 26, 2026 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | S | Common Stock | 3519 | $304.25 | 15,229.5230 | 285,200,000 | 18.77% | 0.00% |
| Feb. 26, 2026 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Common Stock | 3800 | $137.09 | 18,748.5230 | 285,200,000 | 25.42% | 0.00% |
| Feb. 18, 2026 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | F | Common Stock | 1066 | $303.15 | 14,948.5230 | 285,200,000 | 6.66% | 0.00% |
| Feb. 18, 2026 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | A | Common Stock | 3388 | $0.00 | 16,014.5090 | 285,200,000 | 26.83% | 0.00% |
| Dec. 3, 2025 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | A | Employee Stock Option (Right to Buy) | 8661 | $0.00 | 8,661.0000 | 285,400,000 | 9999.99% | 0.00% |
| May 19, 2025 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | G | Common Stock | 65 | $0.00 | 12,585.9920 | 285,300,000 | 0.51% | 0.00% |
| May 15, 2025 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | S | Common Stock | 2234 | $253.00 | 12,650.9920 | 285,300,000 | 15.01% | 0.00% |
| May 15, 2025 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Employee Stock Option (Right to Buy) | 2234 | $0.00 | 0.0000 | 285,300,000 | 100.00% | 0.00% |
| May 15, 2025 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Common Stock | 2234 | $117.73 | 14,884.9920 | 285,300,000 | 17.66% | 0.00% |
| Feb. 19, 2025 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | A | Common Stock | 1546 | $0.00 | 13,078.2380 | 285,700,000 | 13.41% | 0.00% |
| Feb. 19, 2025 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | F | Common Stock | 490 | $265.19 | 12,588.0380 | 285,700,000 | 3.75% | 0.00% |
| Dec. 4, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | A | Employee Stock Option (Right to Buy) | 8272 | $0.00 | 8,272.0000 | 286,000,000 | 9999.99% | 0.00% |
| Aug. 29, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Common Stock | 1576 | $119.12 | 13,076.3080 | 287,000,000 | 13.70% | 0.00% |
| Aug. 29, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Common Stock | 2235 | $117.73 | 15,311.3080 | 287,000,000 | 17.09% | 0.00% |
| Aug. 29, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | S | Common Stock | 3811 | $249.33 | 11,500.3080 | 287,000,000 | 24.89% | 0.00% |
| Aug. 29, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Employee Stock Option (Right to Buy) | 1576 | $0.00 | 0.0000 | 287,000,000 | 100.00% | 0.00% |
| Aug. 29, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Employee Stock Option (Right to Buy) | 2235 | $0.00 | 2,234.0000 | 287,000,000 | 50.01% | 0.00% |
| Feb. 1, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Common Stock | 1500 | $119.12 | 12,411.0600 | 287,100,000 | 13.75% | 0.00% |
| Feb. 1, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | F | Common Stock | 1012 | $224.49 | 11,399.0600 | 287,100,000 | 8.15% | 0.00% |
| March 1, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Employee Stock Option (Right to Buy) | 1500 | $119.12 | 1,576.0000 | 287,100,000 | 48.76% | 0.00% |
| Feb. 25, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Common Stock | 169 | $0.00 | 10,929.4860 | 287,100,000 | 1.57% | 0.00% |
| Feb. 25, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | M | Restricted Stock Units | 169 | $0.00 | 0.0000 | 287,100,000 | 100.00% | 0.00% |
| Feb. 25, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | F | Common Stock | 48 | $220.46 | 10,881.4860 | 287,100,000 | 0.44% | 0.00% |
| Feb. 21, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | A | Common Stock | 744 | $0.00 | 11,013.4860 | 287,100,000 | 7.24% | 0.00% |
| Feb. 21, 2024 | ECOLAB INC. | $ECL | Cook Gregory B | EVP & PRES - INST GROUP | F | Common Stock | 253 | $216.66 | 10,760.4860 | 287,100,000 | 2.30% | 0.00% |