Ack Asset Management Llc Portfolio Stock Holdings
Ack Asset Management Llc disclosed 20 stock positions valued at approximately $801.1 million in its latest SEC 13F filing. The largest holdings include MTRN, WMS, and ATS. The filing reflects positions held as of March 31, 2026 and was filed on May 15, 2026.
- Report Period
- March 31, 2026
- No. of Stocks
- 20
- Portfolio Value
- $801.1M
Holdings by Sector
Ack Asset Management Llc Portfolio Holdings in Q1 2026
17 holdings in the latest reporting period.
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| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| MTRN | MTRN | Basic Materials | 8.57% | 474,800 | - | - | $68,679,820 |
| WMS | WMS | Industrials | 6.68% | 390,000 | - | - | $53,480,700 |
| ATS | ATS | Industrials | 6.50% | 1,846,196 | - | - | $52,062,727 |
| ROG | ROG | Technology | 6.36% | 475,000 | +38,293 | +8.77% | $50,981,750 |
| HLIO | HLIO | Industrials | 6.30% | 780,378 | - | - | $50,498,260 |
| LFUS | LFUS | Technology | 5.72% | 135,000 | +135,000 | +100.00% | $45,812,250 |
| CNM | CNM | Industrials | 5.55% | 900,000 | - | - | $44,460,000 |
| NOVT | NOVT | Technology | 5.53% | 375,000 | - | - | $44,291,250 |
| SITE | SITE | Industrials | 5.48% | 330,000 | - | - | $43,926,300 |
| ASTE | ASTE | Industrials | 5.29% | 786,500 | - | - | $42,345,160 |
| DXPE | DXPE | Industrials | 4.53% | 260,000 | +20,000 | +8.33% | $36,329,800 |
| EXP | EXP | Basic Materials | 3.90% | 165,000 | - | - | $31,259,250 |
| MBC | MBC | Consumer Cyclical | 3.84% | 3,700,000 | +1,400,000 | +60.87% | $30,747,000 |
| GVA | GVA | Industrials | 3.74% | 250,000 | -250,000 | -50.00% | $29,970,000 |
| CTS | CTS | Technology | 3.48% | 584,000 | +584,000 | +100.00% | $27,891,840 |
| SWIM | SWIM | Industrials | 3.46% | 5,160,000 | +5,160,000 | +100.00% | $27,709,200 |
| CLFD | CLFD | Technology | 2.43% | 735,200 | +110,000 | +17.59% | $19,460,744 |