Ack Asset Management LLC Top Holdings and 13F Report (2021) About Ack Asset Management LLCInvestment ActivityAck Asset Management LLC has $608.96 million in total holdings as of September 30, 2021.Ack Asset Management LLC owns shares of 20 different stocks, but just 12 companies or ETFs make up 80% of its holdings.Approximately 9.13% of the portfolio was purchased this quarter.About 18.87% of the portfolio was sold this quarter.This quarter, Ack Asset Management LLC has purchased 22 new stocks and bought additional shares in 3 stocks.Ack Asset Management LLC sold shares of 13 stocks and completely divested from 5 stocks this quarter.Largest Holdings Dycom Industries $58,315,752EnerSys $57,175,592MasTec $54,001,717ATS $50,188,976Astronics $49,790,200 Largest New Holdings this Quarter 09076P104 - BIRD CONSTRUCTION INC $16,961,985 Holding82982L103 - SiteOne Landscape Supply $12,144,000 Holding65487K100 - nLIGHT $5,858,580 Holding Largest Purchases this Quarter BIRD CONSTRUCTION INC 1,120,800 shares (about $16.96M)SiteOne Landscape Supply 100,000 shares (about $12.14M)MRC Global 1,015,000 shares (about $11.65M)MYR Group 79,100 shares (about $8.95M)nLIGHT 754,000 shares (about $5.86M) Largest Sales this Quarter Dycom Industries 62,700 shares (about $9.55M)MasTec 69,100 shares (about $8.06M)Granite Construction 93,300 shares (about $7.03M)EnerSys 46,700 shares (about $4.28M)Rogers 62,500 shares (about $4.22M) Sector Allocation Over TimeMap of 500 Largest Holdings ofAck Asset Management LLC Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorDYDycom Industries$58,315,752$9,551,718 ▼-14.1%382,8009.6%ConstructionENSEnerSys$57,175,592$4,276,786 ▼-7.0%624,3249.4%IndustrialsMTZMasTec$54,001,717$8,064,661 ▼-13.0%462,7008.9%ConstructionATSATS$50,188,976$1,994,400 ▼-3.8%2,013,1968.2%IndustrialsATROAstronics$49,790,2000.0%2,060,0008.2%AerospaceJBTJohn Bean Technologies$45,189,560$3,690,440 ▼-7.6%369,8007.4%IndustrialsMTRNMaterion$37,470,720$2,904,960 ▼-7.2%459,2006.2%Basic MaterialsROGRogers$34,946,775$4,220,625 ▼-10.8%517,5005.7%Computer and TechnologyMYRGMYR Group$31,563,419$8,945,419 ▲39.6%279,1005.2%UtilitiesCECOCECO Environmental$27,382,800$1,618,800 ▼-5.6%1,201,0004.5%IndustrialsMIRMirion Technologies$23,466,162$2,851,338 ▼-10.8%1,618,3563.9%Business ServicesCLFDClearfield$20,423,584$974,816 ▼-4.6%687,2003.4%Computer and TechnologyCENTURI HOLDINGS INC.$20,005,486$1,301,513 ▼-6.1%1,220,5913.3%COMMRCMRC Global$17,966,200$11,652,200 ▲184.5%1,565,0003.0%IndustrialsMBCMasterBrand$17,010,650$2,252,850 ▼-11.7%1,302,5002.8%Consumer DiscretionaryBIRD CONSTRUCTION INC$16,961,985$16,961,985 ▲New Holding1,120,8002.8%COMMTRXMatrix Service$14,718,363$52,194 ▲0.4%1,184,1002.4%EnergyGVAGranite Construction$14,378,780$7,034,820 ▼-32.9%190,7002.4%ConstructionSITESiteOne Landscape Supply$12,144,000$12,144,000 ▲New Holding100,0002.0%IndustrialsLASRnLIGHT$5,858,580$5,858,580 ▲New Holding754,0001.0%Computer and TechnologyESIElement Solutions$0$19,072,500 ▼-100.0%00.0%Basic MaterialsNEOGNeogen$0$14,650,503 ▼-100.0%00.0%MedicalAPTV$0$14,515,200 ▼-100.0%00.0%COMBWABorgWarner$0$11,171,006 ▼-100.0%00.0%Auto/Tires/TrucksTRNSTranscat$0$4,758,300 ▼-100.0%00.0%Computer and TechnologyShowing largest 100 holdings. View all holdings. More Institutional Buying and Selling Information SEC Filings and Trading Data SEC Filings 13F Filings Top 13F Buys Top 13F Sells Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. 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