ACK Asset Management LLC: WMS (WMS): Quarterly 13F Position History
As of Q1 2026, ACK Asset Management LLC reported 390,000 shares of WMS (WMS), worth $53.5M and representing 6.7% of its 13F equity book. The position first appeared in Q2 2016 and has been disclosed across 40 13F-HR filings in Pactolio's tracked window.
- 390,000Shares Held (Latest Filing)
- $53.5MReported Market Value (Latest Filing)
- 6.7%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- -$3.0MQuarter-over-Quarter Value Change
- 1,575,300Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 40 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 390,000 | 0 | — | $53.5M | 6.7% | $137.1 |
| Q4 2025 | 390,000 | 0 | — | $56.5M | 7.1% | $144.8 |
| Q3 2025 | 390,000 | +45,000 | +13.0% | $54.1M | 6.8% | $138.7 |
| Q2 2025 | 345,000 | +345,000 | — | $39.6M | 5.2% | $114.9 |
| Q1 2025 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2021 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2021 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2021 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2021 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2020 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2020 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2020 | 0 | 286,500 | -100.0% | $0 | 0.0% | — |
| Q1 2020 | 286,500 | 573,500 | -66.7% | $6.2M | 3.1% | $21.6 |
| Q4 2019 | 860,000 | +860,000 | — | $18.5M | 5.4% | $21.5 |
| Q3 2019 | 0 | 1,131,500 | -100.0% | $0 | 0.0% | — |
| Q2 2019 | 1,131,500 | 85,500 | -7.0% | $24.8M | 7.2% | $21.9 |
| Q1 2019 | 1,217,000 | +45,600 | +3.9% | $26.9M | 7.4% | $22.1 |
| Q4 2018 | 1,171,400 | +51,400 | +4.6% | $25.7M | 8.7% | $22.0 |
| Q3 2018 | 1,120,000 | 55,300 | -4.7% | $34.6M | 9.5% | $30.9 |
| Q2 2018 | 1,175,300 | 400,000 | -25.4% | $25.5M | 6.8% | $21.7 |
| Q1 2018 | 1,575,300 | +75,300 | +5.0% | $40.8M | 10.3% | $25.9 |
| Q4 2017 | 1,500,000 | +675,000 | +81.8% | $35.8M | 8.0% | $23.9 |
| Q3 2017 | 825,000 | 550,000 | -40.0% | $16.7M | 4.6% | $20.2 |
| Q2 2017 | 1,375,000 | +40,000 | +3.0% | $27.6M | 6.2% | $20.1 |
| Q1 2017 | 1,335,000 | +305,000 | +29.6% | $29.0M | 8.6% | $21.7 |
| Q4 2016 | 1,030,000 | 128,200 | -11.1% | $21.2M | 6.2% | $20.6 |
| Q3 2016 | 1,158,200 | 0 | — | $27.9M | 8.4% | $24.1 |
| Q2 2016 | 1,158,200 | — | — | $31.7M | 9.4% | $27.4 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did ACK Asset Management LLC first disclose a WMS position in 13F-HR filings?
ACK Asset Management LLC first reported WMS (WMS) on its 13F-HR filing for the period ending 2016-06-30 (Q2 2016). The position has appeared on 40 reported quarters within Pactolio's tracked window.
What was ACK Asset Management LLC's most recent quarter-over-quarter share-count change in WMS?
ACK Asset Management LLC held the same 390,000 shares of WMS between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent ACK Asset Management LLC's cost basis in WMS?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.