ACK Asset Management
Latest statistics and disclosures from ACK Asset Management's latest quarterly 13F-HR filing:
- Top 5 stock holdings are ENS, MTRN, GVA, ATRO, WMS, and represent 37.46% of ACK Asset Management's stock portfolio.
- Added to shares of these 10 stocks: CNM (+$48M), JHX (+$40M), HLIO (+$40M), ASTE (+$34M), APOG (+$31M), MBC (+$30M), EXP (+$21M), AIN (+$9.3M), WMS (+$6.2M), NPKI.
- Started 7 new stock positions in JHX, MBC, EXP, CNM, ASTE, HLIO, APOG.
- Reduced shares in these 10 stocks: DY (-$55M), , RRX (-$40M), ATRO (-$38M), , MIR (-$29M), MTZ (-$21M), MTRX (-$15M), CTRI (-$14M), DXPE (-$6.6M).
- Sold out of its positions in DXPE, DY, MRC, MYRG, MTZ, MTRX, MIR, RRX.
- ACK Asset Management was a net seller of stock by $-29M.
- ACK Asset Management has $799M in assets under management (AUM), dropping by 4.95%.
- Central Index Key (CIK): 0001510940
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Portfolio Holdings for ACK Asset Management
ACK Asset Management holds 20 positions in its portfolio as reported in the September 2025 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price | |
|---|---|---|---|---|---|---|
| EnerSys (ENS) | 8.3 | $66M | 584k | 112.96 |
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| Materion Corporation (MTRN) | 7.9 | $63M | 525k | 120.81 |
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| Granite Construction (GVA) | 7.5 | $60M | 545k | 109.65 |
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| Astronics Corporation (ATRO) | 7.0 | $56M | -40% | 1.2M | 45.61 |
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| Advanced Drain Sys Inc Del (WMS) | 6.8 | $54M | +13% | 390k | 138.70 |
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| John Bean Technologies Corporation (JBTM) | 6.2 | $49M | 351k | 140.45 |
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| Core & Main (CNM) | 6.1 | $48M | NEW | 900k | 53.83 |
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| Ats (ATS) | 6.1 | $48M | 1.8M | 26.20 |
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| Albany International (AIN) | 5.1 | $41M | +29% | 760k | 53.30 |
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| James Hardie Inds Plc F (JHX) | 5.0 | $40M | NEW | 2.1M | 19.21 |
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| Helios Technologies (HLIO) | 5.0 | $40M | NEW | 770k | 52.13 |
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| Siteone Landscape Supply (SITE) | 4.5 | $36M | +12% | 280k | 128.80 |
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| Astec Industries (ASTE) | 4.2 | $34M | NEW | 702k | 48.13 |
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| Apogee Enterprises (APOG) | 3.9 | $31M | NEW | 708k | 43.57 |
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| Masterbrand Inc-w/i (MBC) | 3.8 | $30M | NEW | 2.3M | 13.17 |
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| Centuri Holdings (CTRI) | 3.6 | $29M | -32% | 1.4M | 21.17 |
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| Clearfield (CLFD) | 2.7 | $22M | 625k | 34.38 |
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| Eagle Materials (EXP) | 2.6 | $21M | NEW | 90k | 233.04 |
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| Newpark Resources (NPKI) | 2.2 | $18M | +28% | 1.6M | 11.31 |
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| Custom Truck One (CTOS) | 1.5 | $12M | +2% | 1.9M | 6.42 |
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Past Filings by ACK Asset Management
SEC 13F filings are viewable for ACK Asset Management going back to 2011
- ACK Asset Management 2025 Q3 filed Nov. 14, 2025
- ACK Asset Management 2025 Q2 filed Aug. 13, 2025
- ACK Asset Management 2025 Q1 filed May 13, 2025
- ACK Asset Management 2024 Q4 filed Feb. 13, 2025
- ACK Asset Management 2024 Q3 filed Nov. 13, 2024
- ACK Asset Management 2024 Q2 filed Aug. 13, 2024
- ACK Asset Management 2024 Q1 filed May 14, 2024
- ACK Asset Management 2023 Q3 filed Nov. 13, 2023
- ACK Asset Management 2023 Q2 restated filed Aug. 15, 2023
- ACK Asset Management 2023 Q2 filed Aug. 14, 2023
- ACK Asset Management 2023 Q1 filed May 12, 2023
- ACK Asset Management 2022 Q4 filed Feb. 14, 2023
- ACK Asset Management 2022 Q3 filed Nov. 14, 2022
- ACK Asset Management 2022 Q2 filed Aug. 15, 2022
- ACK Asset Management 2022 Q1 filed May 13, 2022
- ACK Asset Management 2021 Q4 filed Feb. 14, 2022