ACK Asset Management LLC
- SEC CIK
- 0001510940
- Latest filing
- Aug 13, 2026
WMS holding history
Advanced Drainage Systems, Inc. in every 13F filed by ACK Asset Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
WMS overviewAll 13F holders of WMSFull Q2 2026 holdings
- Shares (Q2 2026)
- 390,000
- Value
- $61.2M
- % of portfolio
- 7.1%
- Quarters held
- 5
- Since Q2 2025
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 390,000 | $61.2M | 7.1% | 00.0% | Unchanged | Holders |
| Q1 2026 | 390,000 | $53.5M | 6.7% | 00.0% | Unchanged | Holders |
| Q4 2025 | 390,000 | $56.5M | 7.1% | 00.0% | Unchanged | Holders |
| Q3 2025 | 390,000 | $54.1M | 6.8% | +45,000+13.0% | Added | Holders |
| Q2 2025 | 345,000 | $39.6M | 5.2% | +345,000 | New | Holders |