Over the 90-day window ending February 19, 2026, Advanced Drainage Systems's three dominant insider ownership positions are held by TenPercentOwner Partners Holdings Llc Berkshire (6.43Mn shares), Executive Vice President Roy E. Jr. Moore (133.97K shares), Evp And Sales Robert M Klein (102.07K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Partners Holdings Llc Berkshire | 6,429,372 | 16 Dec, 2021 | |
| Roy E. Jr. Moore | Executive Vice President | 133,967 | 23 May, 2023 |
| Robert M Klein | Evp And Sales | 102,070 | 29 May, 2024 |
| Scott A Cottrill | Evp And Cfo And Secretary | 99,153 | 23 May, 2025 |
| D. Scott Barbour | Nan | 87,567 | 26 Nov, 2025 |
| Ross M Jones | 70,749 | 24 Jul, 2023 | |
| Kevin C Talley | Evp And Cao | 56,939 | 23 May, 2025 |
| Robert M Eversole | 51,462 | 12 Nov, 2025 | |
| Ronald R Vitarelli | Evp | 41,594 | 25 May, 2021 |
| C Robert Kidder | 34,680 | 26 Jul, 2021 | |
| Carl A Jr Nelson | 30,531 | 24 Jul, 2023 | |
| Tanya D Fratto | 29,442 | 21 Jul, 2025 | |
| De La Mesa Manuel J Perez | 23,288 | 21 Jul, 2025 | |
| Brian W. King | Executive Vice President | 16,692 | 23 May, 2025 |
| Alexander R Fischer | 16,454 | 21 Jul, 2025 | |
| Anil Seetharam | 14,458 | 21 Jul, 2025 | |
| Thomas J. Sr. Waun | Evp And International | 14,267 | 01 Dec, 2025 |
| Michael B. Coleman | 11,477 | 04 Dec, 2025 | |
| Craig J. Taylor | Executive Vice President | 9,743 | 27 May, 2025 |
| Mark Haney | 8,196 | 21 Jul, 2025 | |
| Kelly S. Gast | 7,871 | 21 Jul, 2025 | |
| Anesa Chaibi | 7,588 | 21 Jul, 2025 | |
| Michael G. Huebert | Executive Vice President | 7,225 | 03 Jun, 2024 |
| Darin S. Harvey | Evp And Supply Chain & Logistics | 2,890 | 11 Jun, 2025 |
| Tim A Makowski | Nan | 2,467 | 13 Nov, 2025 |
| Bret Martz | Nan | 2,058 | 21 May, 2025 |
| Luther C Iv Kissam | 1,972 | 21 Jul, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 05 Dec, 2025 | Robert M Eversole | Common Stock | D | 1,000 | $0.00 | 49,076 | I | G |
| 03 Dec, 2025 | Robert M Eversole | Common Stock | D | 10,569 | $152.82 | 50,076 | I | S |
| 02 Dec, 2025 | Michael B. Coleman | Common Stock | D | 34 | $0.00 | 11,545 | D | G |
| 02 Dec, 2025 | Michael B. Coleman | Common Stock | D | 68 | $0.00 | 11,477 | D | G |
| 02 Dec, 2025 | Michael B. Coleman | Common Stock | D | 102 | $0.00 | 11,579 | D | G |
| 26 Nov, 2025 | Thomas J. Sr. Waun | Common Stock | D | 1,500 | $155.00 | 13,470 | D | S |
| 25 Nov, 2025 | D. Scott Barbour | Common Stock | A | 14,500 | $0.00 | 83,991 | I | G |
| 25 Nov, 2025 | D. Scott Barbour | Common Stock | D | 46,500 | $0.00 | 37,491 | I | G |
| 25 Nov, 2025 | D. Scott Barbour | Common Stock | D | 1,800 | $0.00 | 41,067 | D | G |
| 25 Nov, 2025 | D. Scott Barbour | Common Stock | A | 46,500 | $0.00 | 46,500 | I | G |
| 25 Nov, 2025 | D. Scott Barbour | Common Stock | D | 14,500 | $0.00 | 11,867 | I | G |
| 12 Nov, 2025 | Tim A Makowski | Common Stock | D | 4,800 | $149.21 | 2,568 | D | S |
| 12 Nov, 2025 | Tim A Makowski | Common Stock | D | 101 | $149.19 | 2,467 | D | S |
| 12 Nov, 2025 | D. Scott Barbour | Common Stock | D | 73,462 | $148.96 | 44,897 | D | S |
| 12 Nov, 2025 | D. Scott Barbour | Common Stock | D | 4,538 | $148.01 | 118,359 | D | S |
| 12 Nov, 2025 | D. Scott Barbour | Common Stock | D | 2,030 | $150.66 | 42,867 | D | S |
| 12 Nov, 2025 | D. Scott Barbour | Common Stock | A | 80,030 | $25.75 | 122,897 | D | M |
| 12 Nov, 2025 | Thomas J. Sr. Waun | Common Stock | D | 1,000 | $150.00 | 14,970 | D | S |
| 11 Nov, 2025 | Thomas J. Sr. Waun | Common Stock | D | 1,272 | $148.30 | 797 | I | S |
| 10 Nov, 2025 | Robert M Eversole | Common Stock | A | 4,100 | $0.00 | 60,645 | I | G |