ACK Asset Management
Latest statistics and disclosures from ACK Asset Management's latest quarterly 13F-HR filing:
- Top 5 stock holdings are WMS, HLIO, LFUS, JHX, GTX, and represent 33.66% of ACK Asset Management's stock portfolio.
- Added to shares of these 10 stocks: GTX (+$54M), BWA (+$40M), DNOW (+$39M), ST (+$29M), SHLS (+$22M), EQPT (+$21M), MEI (+$17M), EXP (+$12M), CNM (+$9.2M), MTASF (+$6.6M).
- Started 7 new stock positions in SHLS, GTX, BWA, ST, EQPT, MEI, DNOW.
- Reduced shares in these 10 stocks: MTRN (-$101M), ROG (-$51M), NOVT (-$44M), DXPE (-$36M), CDNL (-$35M), GVA (-$30M), CTS (-$28M), ATS (-$10M), HLIO (-$8.9M), ASTE (-$5.9M).
- Sold out of its positions in CTS, CDNL, DXPE, GVA, NOVT, ROG.
- ACK Asset Management was a net seller of stock by $-98M.
- ACK Asset Management has $856M in assets under management (AUM), dropping by 6.89%.
- Central Index Key (CIK): 0001510940
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Portfolio Holdings for ACK Asset Management
ACK Asset Management holds 21 positions in its portfolio as reported in the June 2026 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price | |
|---|---|---|---|---|---|---|
| Advanced Drain Sys Inc Del (WMS) | 7.1 | $61M | 390k | 156.96 |
|
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| Helios Technologies (HLIO) | 7.1 | $61M | -12% | 681k | 89.25 |
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| Littelfuse (LFUS) | 6.6 | $57M | -7% | 125k | 455.33 |
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| James Hardie Inds Plc F (JHX) | 6.4 | $55M | 2.1M | 26.18 |
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| Garrett Motion (GTX) | 6.3 | $54M | NEW | 1.5M | 36.23 |
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| Core & Main (CNM) | 6.1 | $53M | +21% | 1.1M | 48.25 |
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| Eagle Materials (EXP) | 5.8 | $50M | +33% | 220k | 225.00 |
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| Ats (ATS) | 5.0 | $43M | -18% | 1.5M | 28.78 |
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| Astec Industries (ASTE) | 4.9 | $42M | -12% | 690k | 61.19 |
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| Materion Corporation (MTRN) | 4.7 | $40M | -71% | 135k | 297.39 |
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| BorgWarner (BWA) | 4.7 | $40M | NEW | 600k | 66.40 |
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| Now (DNOW) | 4.5 | $39M | NEW | 3.0M | 12.97 |
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| Masterbrand Inc-w/i (MBC) | 4.4 | $38M | 3.7M | 10.29 |
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| Siteone Landscape Supply (SITE) | 4.4 | $38M | 330k | 114.41 |
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| Latham Group (SWIM) | 4.3 | $37M | +9% | 5.7M | 6.47 |
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| Clearfield (CLFD) | 3.8 | $32M | +10% | 810k | 39.79 |
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| Sensata Technolo (ST) | 3.3 | $29M | NEW | 600k | 47.74 |
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| Aero-swx (MTASF) | 3.3 | $29M | +30% | 1.1M | 26.29 |
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| Shoals Technologies Group Cl A Ord (SHLS) | 2.6 | $22M | NEW | 2.3M | 9.90 |
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| EquipmentShare.com (EQPT) | 2.4 | $21M | NEW | 1.1M | 19.66 |
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| Methode Electronics (MEI) | 1.9 | $17M | NEW | 878k | 18.97 |
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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 2026 Q2 filed Aug. 13, 2026
- ACK Asset Management 2026 Q1 filed May 15, 2026
- ACK Asset Management 2025 Q4 filed Feb. 13, 2026
- 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