SEC Insider Transactions from Cook Gregory B.

Last updated: 2026-03-14 11:53 UTC | Total transactions: 26

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.

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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%