Althoff Judson, CEO of Microsoft Commercial, sold Microsoft Corp. ($MSFT) shares on the open market three times in the last year, totaling $13.6 million. His most recent sale occurred on December 2, 2025. These sales rank 907th among 11,678 individual insiders by value, compared to an average of $8.6 million per insider across about 6.4 transactions. Judson 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | ECOLAB INC. | $ECL | Althoff Judson | Not found | A | Common Stock | 138 | $0.00 | 1,139.9300 | 285,200,000 | 13.75% | 0.00% |
| March 2, 2026 | MICROSOFT CORP | $MSFT | Althoff Judson | CEO, Commercial | F | Common Stock | 3401 | $392.74 | 125,947.4340 | 7,463,000,000 | 2.63% | 0.00% |
| Dec. 31, 2025 | ECOLAB INC. | $ECL | Althoff Judson | Not found | A | Common Stock | 128 | $0.00 | 999.8200 | 285,400,000 | 14.68% | 0.00% |
| Dec. 2, 2025 | MICROSOFT CORP | $MSFT | Althoff Judson | CEO Microsoft Commercial | S | Common Stock | 12750 | $491.52 | 129,348.6810 | 7,466,000,000 | 8.97% | 0.00% |
| Nov. 20, 2025 | MICROSOFT CORP | $MSFT | Althoff Judson | CEO, Microsoft Commercial | G | Common Stock | 3463 | $0.00 | 142,098.6810 | 7,466,000,000 | 2.38% | 0.00% |
| Sept. 30, 2025 | ECOLAB INC. | $ECL | Althoff Judson | Not found | A | Common Stock | 123 | $0.00 | 870.0500 | 285,400,000 | 16.50% | 0.00% |
| Sept. 15, 2025 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | A | Common Stock | 26151 | $0.00 | 145,561.6810 | 7,465,000,000 | 21.90% | 0.00% |
| Sept. 2, 2025 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | F | Common Stock | 23819 | $506.69 | 119,410.6810 | 7,465,000,000 | 16.63% | 0.00% |
| Sept. 2, 2025 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | A | Common Stock | 45220 | $0.00 | 143,230.0350 | 7,465,000,000 | 46.14% | 0.00% |
| June 30, 2025 | ECOLAB INC. | $ECL | Althoff Judson | Not found | A | Common Stock | 126 | $0.00 | 745.3100 | 285,300,000 | 20.38% | 0.00% |
| May 19, 2025 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | S | Common Stock | 9298 | $457.97 | 104,712.0350 | 7,469,000,000 | 8.16% | 0.00% |
| May 19, 2025 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | S | Common Stock | 6702 | $458.46 | 98,010.0350 | 7,469,000,000 | 6.40% | 0.00% |
| May 12, 2025 | ECOLAB INC. | $ECL | Althoff Judson | 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 | Althoff Judson | Not found | A | Common Stock | 134 | $0.00 | 617.8100 | 285,700,000 | 27.74% | 0.00% |
| Feb. 28, 2025 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | F | Common Stock | 3284 | $392.53 | 114,010.0350 | 7,469,000,000 | 2.80% | 0.00% |
| Dec. 31, 2024 | ECOLAB INC. | $ECL | Althoff Judson | Not found | A | Common Stock | 144 | $0.00 | 482.7200 | 286,000,000 | 42.44% | 0.00% |
| Nov. 22, 2024 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | S | Common Stock | 25000 | $417.00 | 117,293.8890 | 7,470,000,000 | 17.57% | 0.00% |
| Sept. 30, 2024 | ECOLAB INC. | $ECL | Althoff Judson | Not found | A | Common Stock | 133 | $0.00 | 338.4400 | 287,000,000 | 64.50% | 0.00% |
| Sept. 16, 2024 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | A | Common Stock | 23374 | $0.00 | 142,293.8890 | 7,469,000,000 | 19.66% | 0.00% |
| Sept. 3, 2024 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | F | Common Stock | 18910 | $417.14 | 118,919.8890 | 7,469,000,000 | 13.72% | 0.00% |
| Sept. 3, 2024 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | A | Common Stock | 32881 | $0.00 | 137,829.6540 | 7,469,000,000 | 31.33% | 0.00% |
| June 30, 2024 | ECOLAB INC. | $ECL | Althoff Judson | Not found | A | Common Stock | 141 | $0.00 | 205.5900 | 287,800,000 | 219.84% | 0.00% |
| May 23, 2024 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | S | Common Stock | 25000 | $425.68 | 104,948.6540 | 7,472,000,000 | 19.24% | 0.00% |
| May 6, 2024 | ECOLAB INC. | $ECL | Althoff Judson | Not found | A | Non-Employee Director Stock Options (Right to Buy) | 177 | $0.00 | 177.0000 | 287,800,000 | 9999.99% | 0.00% |
| May 6, 2024 | ECOLAB INC. | $ECL | Althoff Judson | 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 | Althoff Judson | Not found | A | Common Stock | 64 | $0.00 | 64.2800 | 287,100,000 | 9999.99% | 0.00% |
| March 11, 2024 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | S | Common Stock | 10000 | $403.65 | 129,948.6540 | 7,472,000,000 | 7.15% | 0.00% |
| Feb. 29, 2024 | MICROSOFT CORP | $MSFT | Althoff Judson | EVP, Chief Commercial Officer | F | Common Stock | 3038 | $407.72 | 139,948.6540 | 7,472,000,000 | 2.12% | 0.00% |