United States Homebuilding & Construction Supplies

Advanced Drainage Systems Inc (WMS)

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Advanced Drainage Systems Inc. has seen consistent insider selling activity over the past few months. The most recent transactions occurred on December 3, 2025, involving sales by director Robert M. Eversole. Other executives, including D. Scott Barbour and Thomas J. Waun, also executed multiple sales throughout November 2025, reflecting a pattern of divestment by company leadership.
Ticker: WMS Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Advanced Drainage Systems Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Sale 3 Dec 2025
Value US$2,483,911.84 | Price 278.25 | Shares 5,313 (-42.8%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-12-05 2025-12-03 S Sale
2.2
EVERSOLE ROBERT M
Non-Executive Director
5,313 -42.8%
278.25
US$2,483,912 		5,313 -42.8% 278.25 US$2,483,912
2025-12-02 2025-12-02 PrS Proposed sale
2.2
EVERSOLE ROBERT M

Director

Non-Executive Director
2,577
22.78
US$2,999,939 		2,577 22.78 US$2,999,939
2025-12-01 2025-11-26 S Sale
2.2
WAUN THOMAS J. SR.

EVP, International

Officer
91,391 -47.6%
51.67
US$3,849,622 		91,391 -47.6% 51.67 US$3,849,622
2025-11-26 2025-11-26 PrS Proposed sale
2.2
THOMAS WAUN

Officer

Officer
1,500
155.00
US$232,500 		1,500 155.00 US$232,500
2025-11-13 2025-11-12 S Sale
2.8
BARBOUR D. SCOTT

See Remarks

Executive Director
2,030 -4.5%
150.66
US$305,830 		2,030 -4.5% 150.66 US$305,830
2025-11-13 2025-11-12 S Sale
2.8
BARBOUR D. SCOTT

See Remarks

Executive Director
73,462 -62.1%
148.96
US$10,942,877 		73,462 -62.1% 148.96 US$10,942,877
2025-11-13 2025-11-12 S Sale
2.8
BARBOUR D. SCOTT

See Remarks

Executive Director
4,538 -3.7%
148.01
US$671,656 		4,538 -3.7% 148.01 US$671,656
2025-11-13 2025-11-12 PlS Planned sale
2.2
WAUN THOMAS J. SR.

EVP, International

Officer
1,000 -6.3%
150.00
US$150,000 		1,000 -6.3% 150.00 US$150,000
2025-11-13 2025-11-12 S Sale
3.3
MAKOWSKI TIM A

See Remarks

Officer
101 -3.9%
149.19
US$15,068 		101 -3.9% 149.19 US$15,068
2025-11-13 2025-11-12 S Sale
3.3
MAKOWSKI TIM A

See Remarks

Officer
4,800 -65.1%
149.21
US$716,208 		4,800 -65.1% 149.21 US$716,208
2025-11-12 2025-11-12 PrS Proposed sale
2.8
DONALD SCOTT BARBOUR

Officer; Director

Executive Director
80,030
148.95
US$11,920,356 		80,030 148.95 US$11,920,356
2025-11-12 2025-11-12 PrS Proposed sale
2.2
THOMAS WAUN

Officer

Officer
1,000
150.00
US$150,000 		1,000 150.00 US$150,000
2025-11-12 2025-11-12 PrS Proposed sale
3.3
TIM MAKOWSKI

Officer

Officer
4,901
149.21
US$731,276 		4,901 149.21 US$731,276
2025-11-13 2025-11-11 S Sale
2.2
WAUN THOMAS J. SR.

EVP, International

Officer
1,272 -61.5%
148.30
US$188,690 		1,272 -61.5% 148.30 US$188,690
2025-11-10 2025-11-10 PrS Proposed sale
3.2
DARIN HARVEY

Officer

Officer
2,901
148.48
US$430,749 		2,901 148.48 US$430,749
2025-06-11 2025-06-09 S Sale
3.2
HARVEY DARIN S.

EVP, Supply Chain & Logistics

Officer
4,464 -60.7%
116.39
US$519,565 		4,464 -60.7% 116.39 US$519,565
2025-06-09 2025-06-09 PrS Proposed sale
3.2
DARIN S. HARVEY

Officer

Officer
4,464
116.39
US$519,565 		4,464 116.39 US$519,565
2025-02-21 2025-02-19 S Sale
3.2
HARVEY DARIN S.

EVP, Supply Chain & Logistics

Officer
1,488 -32.7%
125.00
US$186,000 		1,488 -32.7% 125.00 US$186,000
2025-02-21 2025-02-19 PlS Planned sale
3.2
HARVEY DARIN S.

EVP, Supply Chain & Logistics

Officer
976 -24.1%
125.00
US$122,000 		976 -24.1% 125.00 US$122,000
2025-02-19 2025-02-19 PrS Proposed sale
3.2
DARIN S. HARVEY

Officer

Officer
2,464
125.00
US$308,000 		2,464 125.00 US$308,000
2024-08-14 2024-08-14 PrS Proposed sale
2.7
MICHAEL HUEBERT

Officer

Officer
16,032
145.14
US$2,326,854 		16,032 145.14 US$2,326,854
2024-06-03 2024-05-31 S Sale
2.7
HUEBERT MICHAEL G.

Executive Vice President

Officer
10,000 -58.1%
172.58
US$1,725,844 		10,000 -58.1% 172.58 US$1,725,844
2024-06-03 2024-05-31 S Sale
3.3
MAKOWSKI TIM A

See Remarks

Officer
3,800 -45.6%
170.68
US$648,601 		3,800 -45.6% 170.68 US$648,601
2024-05-31 2024-05-31 PrS Proposed sale
2.7
MICHAEL HUEBERT

Officer

Officer
10,000
172.58
US$1,725,843 		10,000 172.58 US$1,725,843
2024-05-31 2024-05-31 PrS Proposed sale
3.3
TIM MAKOWSKI

Officer

Officer
3,800
170.68
US$648,601 		3,800 170.68 US$648,601
2024-06-03 2024-05-30 S Sale
3.0
Cottrill Scott A

EVP, CFO AND SECRETARY

Officer
73,207 -44.5%
173.11
US$12,672,630 		73,207 -44.5% 173.11 US$12,672,630
2024-05-30 2024-05-30 PrS Proposed sale
3.0
SCOTT A. COTTRILL

Officer

Officer
73,207
173.11
US$12,672,630 		73,207 173.11 US$12,672,630
2024-05-29 2024-05-24 S Sale
2.4
KLEIN ROBERT M

EVP, Sales

Officer
3,059 -2.9%
175.95
US$538,232 		3,059 -2.9% 175.95 US$538,232
2024-05-29 2024-05-24 S Sale
2.8
BARBOUR D. SCOTT

See Remarks

Executive Director
85,938 -65.1%
174.10
US$14,961,711 		85,938 -65.1% 174.10 US$14,961,711
2024-05-24 2024-05-24 PrS Proposed sale
2.8
DONALD BARBOUR

Officer; Director

Executive Director
85,938
174.10
US$14,961,703 		85,938 174.10 US$14,961,703
2024-05-24 2024-05-24 PrS Proposed sale
2.4
ROBERT KLEIN

Officer

Officer
3,059
175.95
US$538,232 		3,059 175.95 US$538,232
2024-05-23 2024-05-21 S Sale
3.2
HARVEY DARIN S.

EVP, Supply Chain & Logistics

Officer
5,384 -56.6%
177.83
US$957,449 		5,384 -56.6% 177.83 US$957,449
2024-05-23 2024-05-21 S Sale
3.2
HARVEY DARIN S.

EVP, Supply Chain & Logistics

Officer
4,133 -50.0%
177.89
US$735,215 		4,133 -50.0% 177.89 US$735,215
2024-05-21 2024-05-21 PrS Proposed sale
3.2
DARIN S HARVEY

Officer

Officer
9,517
177.86
US$1,692,663 		9,517 177.86 US$1,692,663
2024-03-08 2024-03-06 PlS Planned sale
2.7
HUEBERT MICHAEL G.

Executive Vice President

Officer
10,000 -42.6%
163.52
US$1,635,209 		10,000 -42.6% 163.52 US$1,635,209
2024-03-06 2024-03-06 PrS Proposed sale
2.7
MICHAEL HUEBERT

Officer

Officer
10,000
163.52
US$1,635,208 		10,000 163.52 US$1,635,208
2024-03-01 2024-02-28 S Sale
3.6
JONES ROSS M
Non-Executive Director
762,895 -100.0%
163.00
US$124,351,885 		762,895 -100.0% 163.00 US$124,351,885
2024-03-01 2024-02-28 S Sale
3.5
Seetharam Anil
Non-Executive Director
762,895 -100.0%
163.00
US$124,351,885 		762,895 -100.0% 163.00 US$124,351,885
2024-02-28 2024-02-28 PrS Proposed sale
Stockbridge Partners LLC

May be deemed affiliate
762,895
163.90
US$125,038,490 		762,895 163.90 US$125,038,490
2024-02-28 2024-02-28 PrS Proposed sale
Stockbridge Partners LLC

May be deemed affiliate
762,895
163.90
US$125,038,490 		762,895 163.90 US$125,038,490
2024-02-28 2024-02-28 PrS Proposed sale
Stockbridge Partners LLC

May be deemed affiliate
762,895
163.90
US$125,038,490 		762,895 163.90 US$125,038,490
2024-02-28 2024-02-28 PrS Proposed sale
Stockbridge Partners LLC

May be deemed affiliate
762,895
163.90
US$125,038,490 		762,895 163.90 US$125,038,490
2024-02-29 2024-02-27 PlS Planned sale
2.2
WAUN THOMAS J. SR.

EVP, International

Officer
1,500 -13.4%
164.39
US$246,585 		1,500 -13.4% 164.39 US$246,585
2024-02-27 2024-02-27 PrS Proposed sale
2.2
THOMAS J. WAUN

Officer

Officer
1,500
164.39
US$246,585 		1,500 164.39 US$246,585
2024-02-16 2024-02-16 PrS Proposed sale
1.0
Mark Haney

Director

Non-Executive Director
10,000
162.57
US$1,625,700 		10,000 162.57 US$1,625,700
2024-02-16 2024-02-14 PlS Planned sale
3.3
MAKOWSKI TIM A

See Remarks

Officer
8,271 -57.0%
161.69
US$1,337,311 		8,271 -57.0% 161.69 US$1,337,311
2024-02-14 2024-02-14 PrS Proposed sale
3.3
TIM MAKOWSKI

Officer

Officer
8,271
161.69
US$1,337,310 		8,271 161.69 US$1,337,310
2024-02-14 2024-02-12 S Sale
2.4
KLEIN ROBERT M

EVP, Sales

Officer
9,163 -8.4%
163.39
US$1,497,143 		9,163 -8.4% 163.39 US$1,497,143
2023-12-18 2023-12-15 S Sale
3.0
KING BRIAN W.

Executive Vice President

Officer
1,869 -15.1%
140.86
US$263,275 		1,869 -15.1% 140.86 US$263,275
2023-12-15 2023-12-15 PrS Proposed sale
3.0
BRIAN W KING

Officer

Officer
1,869
140.86
US$263,275 		1,869 140.86 US$263,275
2023-12-18 2023-12-14 S Sale
2.7
HUEBERT MICHAEL G.

Executive Vice President

Officer
13,473 -36.6%
138.23
US$1,862,373 		13,473 -36.6% 138.23 US$1,862,373
2023-12-08 2023-12-06 S Sale
3.3
MAKOWSKI TIM A

See Remarks

Officer
2,000 -24.5%
125.72
US$251,446 		2,000 -24.5% 125.72 US$251,446
2023-12-06 2023-12-06 PrS Proposed sale
3.3
TIM A MAKOWSKI

Officer

Officer
2,000
125.72
US$251,446 		2,000 125.72 US$251,446
2023-11-16 2023-11-15 S Sale
2.7
HUEBERT MICHAEL G.

Executive Vice President

Officer
14,794 -28.7%
120.74
US$1,786,248 		14,794 -28.7% 120.74 US$1,786,248
2023-11-15 2023-11-15 PrS Proposed sale
2.7
MICHAEL HUEBERT

Officer

Officer
14,794
120.74
US$1,786,247 		14,794 120.74 US$1,786,247
2023-11-09 2023-11-07 S Sale
2.4
KLEIN ROBERT M

EVP, Sales

Officer
6,353 -5.5%
111.85
US$710,567 		6,353 -5.5% 111.85 US$710,567
2023-09-14 2023-09-14 S Sale
3.5
Seetharam Anil
Non-Executive Director
10,000 -1.3%
123.66
US$1,236,576 		10,000 -1.3% 123.66 US$1,236,576
2023-09-14 2023-09-14 S Sale
3.6
JONES ROSS M
Non-Executive Director
10,000 -1.3%
123.66
US$1,236,576 		10,000 -1.3% 123.66 US$1,236,576
2023-09-14 2023-09-12 S Sale
3.3
MAKOWSKI TIM A

See Remarks

Officer
2,500 -28.9%
122.35
US$305,871 		2,500 -28.9% 122.35 US$305,871
2023-09-14 2023-09-12 S Sale
3.5
Seetharam Anil
Non-Executive Director
70,000 -8.3%
122.19
US$8,553,265 		70,000 -8.3% 122.19 US$8,553,265
2023-09-14 2023-09-12 S Sale
3.6
JONES ROSS M
Non-Executive Director
70,000 -8.3%
122.19
US$8,553,265 		70,000 -8.3% 122.19 US$8,553,265
2023-09-12 2023-09-12 PrS Proposed sale
3.3
TIM A MAKOWSKI

Officer

Officer
2,500
122.35
US$305,870 		2,500 122.35 US$305,870
2023-09-07 2023-09-07 S Sale
3.6
JONES ROSS M
Non-Executive Director
71,474 -7.8%
126.53
US$9,043,512 		71,474 -7.8% 126.53 US$9,043,512
2023-09-07 2023-09-07 S Sale
3.5
Seetharam Anil
Non-Executive Director
71,474 -7.8%
126.53
US$9,043,512 		71,474 -7.8% 126.53 US$9,043,512
2023-09-07 2023-09-06 S Sale
3.6
JONES ROSS M
Non-Executive Director
50,000 -5.2%
126.56
US$6,327,930 		50,000 -5.2% 126.56 US$6,327,930
2023-09-07 2023-09-06 S Sale
3.5
Seetharam Anil
Non-Executive Director
50,000 -5.2%
126.56
US$6,327,930 		50,000 -5.2% 126.56 US$6,327,930
2023-09-07 2023-09-05 S Sale
3.6
JONES ROSS M
Non-Executive Director
50,000 -4.9%
128.27
US$6,413,630 		50,000 -4.9% 128.27 US$6,413,630
2023-09-07 2023-09-05 S Sale
3.5
Seetharam Anil
Non-Executive Director
50,000 -4.9%
128.27
US$6,413,630 		50,000 -4.9% 128.27 US$6,413,630
2023-09-05 2023-09-05 PrS Proposed sale
Stockbridge Partners LLC

May be deemed affiliate
425,000
128.16
US$54,468,000 		425,000 128.16 US$54,468,000
2023-09-01 2023-09-01 S Sale
3.6
JONES ROSS M
Non-Executive Director
15,000 -1.5%
131.08
US$1,966,154 		15,000 -1.5% 131.08 US$1,966,154
2023-09-01 2023-09-01 S Sale
3.6
JONES ROSS M
Non-Executive Director
110,000 -9.7%
130.35
US$14,338,445 		110,000 -9.7% 130.35 US$14,338,445
2023-09-01 2023-09-01 S Sale
3.5
Seetharam Anil
Non-Executive Director
15,000 -1.5%
131.08
US$1,966,154 		15,000 -1.5% 131.08 US$1,966,154
2023-09-01 2023-09-01 S Sale
3.5
Seetharam Anil
Non-Executive Director
110,000 -9.7%
130.35
US$14,338,445 		110,000 -9.7% 130.35 US$14,338,445
2023-09-01 2023-08-31 S Sale
3.6
JONES ROSS M
Non-Executive Director
200 -0.0%
128.76
US$25,752 		200 -0.0% 128.76 US$25,752
2023-09-01 2023-08-31 S Sale
3.6
JONES ROSS M
Non-Executive Director
74,800 -6.2%
128.07
US$9,579,427 		74,800 -6.2% 128.07 US$9,579,427
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