John J. Zillmer, CEO of Aramark (ARMK), made one open market purchase of ARMK shares in the last year, totaling about $250,000. His most recent buy was on August 7, 2025. This ranks him 1,360th among nearly 5,000 insiders by purchase value, below the average of $1.46 million across about 3.3 transactions per insider. Zillmer reported no open market sales in the period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 138 | $0.00 | 49,191.8600 | 285,200,000 | 0.28% | 0.00% |
| March 4, 2026 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 1265 | $0.00 | 1,019,900.0830 | 266,345,000 | 0.12% | 0.00% |
| March 2, 2026 | CSX CORP | $CSX | ZILLMER JOHN J | Not found | G | Common Stock | 5850 | $0.00 | 363,714.0000 | 1,860,000,000 | 1.58% | 0.00% |
| Feb. 26, 2026 | CSX CORP | $CSX | ZILLMER JOHN J | Not found | A | Common Stock | 4455 | $0.00 | 363,702.0000 | 1,860,000,000 | 1.24% | 0.00% |
| Feb. 26, 2026 | CSX CORP | $CSX | ZILLMER JOHN J | Not found | A | Common Stock | 5862 | $0.00 | 369,564.0000 | 1,860,000,000 | 1.61% | 0.00% |
| Feb. 13, 2026 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | F | Common Stock | 879 | $301.02 | 49,012.2400 | 285,200,000 | 1.76% | 0.00% |
| Feb. 13, 2026 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | M | Non-Employee Stock Option (Right to Buy) | 2300 | $0.00 | 0.0000 | 285,200,000 | 100.00% | 0.00% |
| Feb. 13, 2026 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | M | Common Stock | 2300 | $115.08 | 49,891.2400 | 285,200,000 | 4.83% | 0.00% |
| Dec. 31, 2025 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 128 | $0.00 | 47,591.2400 | 285,400,000 | 0.27% | 0.00% |
| Dec. 17, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 1372 | $0.00 | 1,018,634.8440 | 267,349,000 | 0.13% | 0.00% |
| Dec. 2, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | F | Common Stock | 5468 | $37.08 | 1,017,262.3580 | 267,349,000 | 0.53% | 0.00% |
| Dec. 1, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Stock Option (Right to Buy) | 182983 | $0.00 | 182,983.0000 | 267,349,000 | 9999.99% | 0.07% |
| Dec. 1, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 51241 | $37.08 | 1,022,730.0530 | 267,349,000 | 5.27% | 0.02% |
| Nov. 27, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | F | Common Stock | 6570 | $37.30 | 971,489.0530 | 267,349,000 | 0.67% | 0.00% |
| Nov. 17, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | F | Common Stock | 5231 | $38.03 | 978,059.4240 | 267,349,000 | 0.53% | 0.00% |
| Nov. 10, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 150742 | $0.00 | 983,290.7790 | 267,349,000 | 18.11% | 0.06% |
| Sept. 30, 2025 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 123 | $0.00 | 47,425.8600 | 285,400,000 | 0.26% | 0.00% |
| Aug. 20, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 721 | $0.00 | 832,546.7490 | 267,180,000 | 0.09% | 0.00% |
| Aug. 7, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | P | Common Stock | 6387 | $39.07 | 831,825.4110 | 267,180,000 | 0.77% | 0.00% |
| June 30, 2025 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 126 | $0.00 | 47,264.6100 | 285,300,000 | 0.27% | 0.00% |
| May 28, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 719 | $0.00 | 825,438.4110 | 268,690,000 | 0.09% | 0.00% |
| May 12, 2025 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Non-Employee Director Stock Option (Right to Buy) | 810 | $0.00 | 810.0000 | 285,300,000 | 9999.99% | 0.00% |
| March 31, 2025 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 134 | $0.00 | 47,096.4600 | 285,700,000 | 0.29% | 0.00% |
| Feb. 24, 2025 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 773 | $0.00 | 824,719.6740 | 268,690,000 | 0.09% | 0.00% |
| Feb. 19, 2025 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | F | Common Stock | 935 | $265.19 | 46,920.5000 | 285,700,000 | 1.95% | 0.00% |
| Feb. 19, 2025 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | M | Common Stock | 2200 | $112.75 | 47,855.5000 | 285,700,000 | 4.82% | 0.00% |
| Feb. 19, 2025 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | M | Non-Employee Stock Option (Right to Buy) | 2200 | $0.00 | 0.0000 | 285,700,000 | 100.00% | 0.00% |
| Feb. 14, 2025 | CSX CORP | $CSX | ZILLMER JOHN J | Not found | A | Common Stock | 7492 | $0.00 | 359,247.0000 | 1,900,190,000 | 2.13% | 0.00% |
| Feb. 14, 2025 | CSX CORP | $CSX | ZILLMER JOHN J | Not found | A | Common Stock | 5694 | $0.00 | 351,755.0000 | 1,900,190,000 | 1.65% | 0.00% |
| Dec. 31, 2024 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 144 | $0.00 | 45,655.5000 | 286,000,000 | 0.32% | 0.00% |
| Dec. 12, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 710 | $0.00 | 823,946.4650 | 266,200,000 | 0.09% | 0.00% |
| Dec. 2, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Stock Option (Right to Buy) | 161474 | $0.00 | 161,474.0000 | 266,200,000 | 9999.99% | 0.06% |
| Dec. 2, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 47124 | $40.32 | 823,236.9190 | 266,200,000 | 6.07% | 0.02% |
| Nov. 27, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | F | Common Stock | 7873 | $42.22 | 776,112.9190 | 266,200,000 | 1.00% | 0.00% |
| Nov. 17, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | F | Common Stock | 7688 | $37.36 | 795,321.7620 | 266,200,000 | 0.96% | 0.00% |
| Nov. 18, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | F | Common Stock | 11336 | $37.36 | 783,985.7790 | 266,200,000 | 1.43% | 0.00% |
| Nov. 4, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 77092 | $0.00 | 897,200.5070 | 266,200,000 | 9.40% | 0.03% |
| Nov. 4, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | F | Common Stock | 94191 | $38.21 | 803,009.9850 | 266,200,000 | 10.50% | 0.04% |
| Sept. 30, 2024 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 133 | $0.00 | 45,478.5700 | 287,000,000 | 0.29% | 0.00% |
| Sept. 3, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 1099 | $0.00 | 820,108.5070 | 266,577,000 | 0.13% | 0.00% |
| Aug. 15, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 140608 | $35.56 | 819,009.9070 | 266,577,000 | 20.73% | 0.05% |
| June 30, 2024 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 141 | $0.00 | 45,311.0900 | 287,800,000 | 0.31% | 0.00% |
| May 28, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 831 | $0.00 | 678,401.9070 | 262,594,000 | 0.12% | 0.00% |
| May 6, 2024 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Non-Employee Director Stock Option (Right to Buy) | 934 | $0.00 | 934.0000 | 287,800,000 | 9999.99% | 0.00% |
| March 31, 2024 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 146 | $0.00 | 45,131.8400 | 287,100,000 | 0.33% | 0.00% |
| Feb. 28, 2024 | Aramark | $ARMK | ZILLMER JOHN J | Chief Executive Officer | A | Common Stock | 861 | $0.00 | 677,570.9050 | 262,594,000 | 0.13% | 0.00% |
| Feb. 16, 2024 | CSX CORP | $CSX | ZILLMER JOHN J | Not found | A | Common Stock | 6809 | $0.00 | 346,061.0000 | 1,958,757,000 | 2.01% | 0.00% |
| Feb. 16, 2024 | CSX CORP | $CSX | ZILLMER JOHN J | Not found | A | Common Stock | 4902 | $0.00 | 339,252.0000 | 1,958,757,000 | 1.47% | 0.00% |
| Jan. 10, 2024 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | M | Non-Employee Stock Option (Right to Buy) | 2400 | $0.00 | 0.0000 | 287,100,000 | 100.00% | 0.00% |
| Jan. 10, 2024 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | M | Common Stock | 2400 | $104.85 | 46,221.0400 | 287,100,000 | 5.48% | 0.00% |
| Jan. 10, 2024 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | F | Common Stock | 1277 | $196.95 | 44,944.0400 | 287,100,000 | 2.76% | 0.00% |
| Dec. 31, 2023 | ECOLAB INC. | $ECL | ZILLMER JOHN J | Not found | A | Common Stock | 157 | $0.00 | 43,821.0400 | 286,900,000 | 0.36% | 0.00% |
| Feb. 14, 2023 | CSX CORP | $CSX | ZILLMER JOHN J | Director | A | Common Stock | 7899 | $31.65 | 334,350.0000 | 2,066,367,000 | 2.42% | 0.00% |
| Feb. 14, 2023 | CSX CORP | $CSX | ZILLMER JOHN J | Director | A | Common Stock | 5688 | $31.65 | 326,451.0000 | 2,066,367,000 | 1.77% | 0.00% |