Tim A. Makowski sold Advanced Drainage Systems ($WMS) shares on the open market twice in the last year for a total of $731 thousand. His most recent sale occurred on November 12, 2025. These sales rank 5,637th among 11,678 insiders in our database, where the average is $8.6 million across about 6.4 transactions. Makowski made no open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov. 12, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | S | Common Stock | 4800 | $149.21 | 20,125.0082 | 84,602,000 | 19.26% | 0.01% |
| Nov. 12, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | S | Common Stock | 101 | $149.19 | 20,024.0082 | 84,602,000 | 0.50% | 0.00% |
| May 22, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 133 | $111.00 | 24,925.1858 | 83,750,000 | 0.53% | 0.00% |
| May 20, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 85 | $118.39 | 25,058.1858 | 83,750,000 | 0.34% | 0.00% |
| May 19, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | A | Option to Purchase Common Stock | 2166 | $0.00 | 2,166.0000 | 83,750,000 | 9999.99% | 0.00% |
| May 19, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 105 | $121.86 | 25,143.1858 | 83,750,000 | 0.42% | 0.00% |
| May 19, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | A | Common Stock | 1016 | $0.00 | 25,248.1858 | 83,750,000 | 4.19% | 0.00% |
| May 14, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 14 | $121.68 | 24,232.1858 | 83,750,000 | 0.06% | 0.00% |
| May 14, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | A | Common Stock | 3080 | $0.00 | 25,167.1858 | 83,750,000 | 13.94% | 0.00% |
| May 14, 2025 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 921 | $121.68 | 24,246.1858 | 83,750,000 | 3.66% | 0.00% |
| May 31, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | S | Common Stock | 3800 | $170.68 | 22,087.8195 | 82,283,000 | 14.68% | 0.00% |
| May 22, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 198 | $177.06 | 25,887.8447 | 82,283,000 | 0.76% | 0.00% |
| May 20, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | A | Common Stock | 839 | $0.00 | 26,085.8447 | 82,283,000 | 3.32% | 0.00% |
| May 20, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | A | Option to Purchase Common Stock | 1747 | $0.00 | 1,747.0000 | 82,283,000 | 9999.99% | 0.00% |
| May 18, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 157 | $174.13 | 25,365.8447 | 82,283,000 | 0.62% | 0.00% |
| May 19, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 119 | $174.13 | 25,246.8447 | 82,283,000 | 0.47% | 0.00% |
| May 15, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 20 | $176.18 | 25,522.8447 | 82,283,000 | 0.08% | 0.00% |
| May 15, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | F | Common Stock | 1408 | $176.18 | 25,542.8447 | 82,283,000 | 5.22% | 0.00% |
| May 15, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | A | Common Stock | 3145 | $0.00 | 26,950.8447 | 82,283,000 | 13.21% | 0.00% |
| Feb. 14, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | S | Common Stock | 8271 | $161.69 | 23,806.7398 | 0 | 25.78% | 0.00% |
| Feb. 14, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | M | Option to Purchase Common Stock | 2802 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 14, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | M | Option to Purchase Common Stock | 5469 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 14, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | M | Common Stock | 2802 | $25.75 | 26,608.7398 | 0 | 11.77% | 0.00% |
| Feb. 14, 2024 | ADVANCED DRAINAGE SYSTEMS, INC. | $WMS | MAKOWSKI TIM A | See Remarks | M | Common Stock | 5469 | $27.44 | 32,077.7398 | 0 | 20.55% | 0.00% |