Advanced Drainage Systems, Inc.

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ WMS

Report date

12/31/2025

Quarter

2025 Q4

Filed

1/22/2026

Shares

154,409

Value ($000)

22,363

Weight

0.0%

2020 Q4 - 2025 Q4 (13 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	1/22/2026	22,363	0.0%	154,409	12/31/2025
2025 Q3	10/29/2025	5,378	0.0%	38,776	9/30/2025
2025 Q2	8/8/2025	4,033	0.0%	35,111	6/30/2025
2025 Q1	5/2/2025	2,661	0.0%	24,491	3/31/2025
2024 Q4	2/12/2025	2,871	0.0%	24,836	12/31/2024
2022 Q3	11/9/2022	350	0.0%	2,811	9/30/2022
2022 Q2	8/9/2022	33,868	0.0%	376,019	6/30/2022
2022 Q1	5/11/2022	48,649	0.0%	409,469	3/31/2022
2021 Q4	2/10/2022	43,695	0.0%	320,982	12/31/2021
2021 Q3	11/10/2021	40,429	0.0%	373,753	9/30/2021
2021 Q2	8/13/2021	34,080	0.0%	292,353	6/30/2021
2021 Q1	5/13/2021	26,276	0.0%	254,140	3/31/2021
2020 Q4	5/12/2021	10,381	0.0%	124,204	12/31/2020