| TECOMET | Charlesbank Capital Partners | 78.35 |
| GE AVIATION | General Electric | 69.28 |
| UNION SPECIALTIES INC | UNION SPECIALTIES INC | 37.85 |
| PROTO LABS INC. | PROTO LABS INC | 25.58 |
| PROTO LABS INC | PROTO LABS INC | 25.58 |
| PACE INDUSTRIES - CAMBRIDGE DIV | Pace Industries | 16.93 |
| ISOMEDIX OPERATIONS INC. | STERIS | 15.65 |
| HITCHINER COUNTERGRAVITY CAST OPERATIONS (VCO/DCO/MCT) | HITCHINER MANUFACTURING CO INC | 14.33 |
| BOYD CORP INC. | Goldman Sachs | 9.43 |
| PALMER MANUFACTURING CO LLC | Pursuit Aerospace | 7.26 |
| PARADIGM PRECISION HOLDINGS LLC | Pursuit Aerospace | 7.23 |
| TECHNICAL MANUFACTURING CORP | Ametek | 5.57 |
| PARKER HANNIFIN CORP CHOMERICS DIV | Parker-Hannifin | 4.22 |
| LUBRIZOL ADVANCED MATERIALS INC | Berkshire Hathaway | 1.78 |
| CHEMGENES CORP | CHEMGENES CORP | 1.63 |
| TEI BIOSCIENCES | Integra LifeSciences | 1.30 |
| WORTHEN INDUSTRIES INC UPACO DIV | Worthen Industries | 1.12 |
| SPECIALTY MATERIALS INC. | Global Materials | 1.09 |
| CHROMA COLOR CORP | Arsenal Capital Partners | 0.89 |
| HOLCIM - NER INC. | Holcim Group | 0.75 |
| IDEAL TAPE CO | American Biltrite | 0.62 |
| BERKSHIRE MANUFACTURED PRODUCTS INC | Pursuit Aerospace | 0.59 |
| AVCARB MATERIAL SOLUTIONS | Arsenal Capital Partners | 0.50 |
| AMPHENOL APC INC | Amphenol | 0.44 |
| GLOBAL COMPANIES LLC | Global Partners LP | 0.41 |
| GULF OIL LP CHELSEA TERMINAL | RaceTrac Petroleum | 0.39 |
| ADVANCE COATINGS CO | ADVANCE COATINGS CO | 0.35 |
| IRVING OIL TERMINALS INC. | Irving Oil | 0.34 |
| ENTEGRIS INC | Entegris | 0.29 |
| BRADFORD INDUSTRIES | Wembly Enterprises | 0.18 |
| NYACOL NANOTECHNOLOGIES INC | NYACOL NANOTECHNOLOGIES INC | 0.16 |
| COORSTEK IGNITER PRODUCTS | COORSTEK INC | 0.14 |
| EXXON MOBIL CORP EVERETT TERMINAL | Exxon Mobil | 0.12 |
| MAJILITE MANUFACTURING INC | MERIDIAN INDUSTRIES INC | 0.11 |
| ALLCOAT TECHNOLOGY INC | ALLCOAT TECHNOLOGY INC | 0.10 |
| FXI INC. - NEWBURYPORT | One Rock Capital Partners | 0.08 |
| MEXICHEM SPECIALTY COMPOUNDS | Orbia Advance Corporation | 0.08 |
| BENCHMARK ELECTRONICS NH DIV | Benchmark Electronics | 0.07 |
| UNIVAR SOLUTIONS USA INC. - TEWKSBURY MA | Apollo Global Management | 0.06 |
| KENDALL GREEN ENERGY LLC | Antin Infrastructure Partners | 0.05 |
| COLT REFINING INC | COLT REFINING INC | 0.05 |
| ANALOG DEVICES INC/WILMINGTON MANUFACTURING | Analog Devices Inc. | 0.05 |
| COVESTRO LLC | Covestro | 0.03 |
| HOLCIM - NER INC. | Holcim Group | 0.03 |
| DAMPNEY CO INC | DAMPNEY CO INC | 0.03 |
| S&E SPECIALTY POLYMERS LLC | Nautic Partners | 0.03 |
| OMNOVA SOLUTIONS | Synthomer | 0.02 |
| CHELSEA SANDWICH LLC | Global Partners LP | 0.02 |
| STRAUMANN MANUFACTURING INC | STRAUMANN MANUFACTURING INC | 0.02 |
| VERANOVA L.P. | Altaris Capital Partners | 0.02 |
| NEWARK AMERICA | Greif Inc. | 0.02 |
| JG MACLELLAN CONCRETE CO INC | JG MACLELLAN CONCRETE CO INC | 0.02 |
| INTERVALA LLC | Intervala | 0.02 |
| DUNCAN GALVANIZING CORP. | DUNCAN GALVANIZING CORP. | 0.01 |
| EDWARDS VACUUM LLC | Atlas Copco | 0.01 |
| HOLCIM - NER INC. | Holcim Group | 0.01 |
| HARCROS CHEMICALS INC | Harcros Chemicals | 0.01 |
| ICP CONSTRUCTION | CPC HOLDING LLC | 0.01 |
| BROX INDUSTRIES INC | Brox Industries | 0.01 |
| MORGAN ADVANCED CERAMICS INC | Morgan Advanced Materials | 0.01 |
| PCI SYNTHESIS | SK Capital Partners | 0.01 |
| BOSTIK MANUFACTURING PLANT | Arkema | 0.01 |
| VICOR CORP | Vicor Corp. | 0.01 |
| BENEVENTO SAND & STONE CORP | BENEVENTO SAND & STONE CORP | 0.01 |
| HAARTZ CORP | HAARTZ CORP | 0.00 |
| GRANITE STATE CONCRETE CO INC WESTFORD | JG MACLELLAN CONCRETE CO INC | 0.00 |
| ROHM & HAAS ELECTRONIC MATERIALS LLC | DuPont de Nemours | 0.00 |
| ROUSSELOT PEABODY INC. | Darling Ingredients | 0.00 |
| BRONZE CRAFT CORP | BRONZE CRAFT CORP | 0.00 |
| TORROMEO INDUSTRIES INC. | TORROMEO INDUSTRIES INC | 0.00 |
| FM CALLAHAN & SON INC | FM CALLAHAN & SON INC | 0.00 |
| TORROMEO INDUSTRIES INC | TORROMEO INDUSTRIES INC | 0.00 |
| OWENS CORNING ROOFING & ASPHALT LLC. | Owens Corning | 0.00 |
| CIRCUIT CONNECT INC | Infinitum | 0.00 |
| BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATION | BAE Systems | 0.00 |
| LAMB & RITCHIE | LAMB & RITCHIE | 0.00 |
| MEDTRONIC INC | Medtronic | 0.00 |
| INTERVALA LLC | Intervala | 0.00 |
| RAYTHEON CO | RTX Corporation | 0.00 |
| DAV-TECH PLATING INC. | DAV-TECH PLATING INC. | 0.00 |
| WINCHESTER INTERCONNECT RF CORP | Aptiv PLC | 0.00 |
| INTERNATIONAL RECTIFIER HIREL PRODUCTS INC. | Infineon Technologies | 0.00 |
| WORTHEN INDUSTRIES | Worthen Industries | 0.00 |
| PANDOLF PERKINS CO | EH PERKINS CONSTRUCTION INC | 0.00 |
| FIREYE INC | Carrier Global Corporation | 0.00 |
| L3 TECHNOLOGIES INC. | L3Harris Technologies | 0.00 |
| TRANSENE CO INC. | TRANSENE CO INC | 0.00 |
| JG MACLELLAN CONCRETE CO INC | JG MACLELLAN CONCRETE CO INC | 0.00 |
| LGC STANDARDS VHG LABS | LGC STANDARDS VHG LABS | 0.00 |
| RYMES - HUDSON | SUPERIOR PLUS CORP | 0.00 |
| HOLLINGSWORTH & VOSE CO WEST GROTON | HOLLINGSWORTH & VOSE CO | 0.00 |
| HERO COATINGS INC. | HERO COATINGS INC. | 0.00 |
| AMERICAN SUPERCONDUCTOR | American Superconductor Corp. | 0.00 |
| MATEP LLC | Longwood Energy Partners | 0.00 |
| HOLCIM - NER INC. | Holcim Group | 0.00 |
| ANALOGIC CORP | Altaris Capital Partners | 0.00 |
| MARMON UTILITY LLC | Berkshire Hathaway | 0.00 |
| KOCH SEPARATION SOLUTIONS INC. | Koch Industries | 0.00 |
| ITW PERFORMANCE POLYMERS | Illinois Tool Works | 0.00 |
| DAUPHINAIS CONCRETE INC. | DAUPHINAIS CONCRETE INC | 0.00 |
| PARKER HANNIFIN CORP CHOMERICS DIV | Parker-Hannifin | 0.00 |
| TEKNOR APEX ELASTOMERS INC. | TEKNOR APEX | 0.00 |
| VERANOVA L.P. | Altaris Capital Partners | 0.00 |
| HIGHLINE WARREN LLC | Pritzker Group | 0.00 |
| HOLCIM - NER INC. | Holcim Group | 0.00 |
| JG MACLELLAN CONCRETE CO INC | JG MACLELLAN CONCRETE CO INC | 0.00 |
| PLATING FOR ELECTRONICS INC. | PLATING FOR ELECTRONICS INC. | 0.00 |
| CIRTRONICS CORP | CIRTRONICS CORP | 0.00 |
| THERMO FISHER SCIENTIFIC | Thermo Fisher Scientific | 0.00 |
| HOLOGIC INC | Hologic | 0.00 |
| HOUGHTON CHEMICAL CORP | HOUGHTON CHEMICAL CORP | 0.00 |
| THERMO FISHER SCIENTIFIC | Thermo Fisher Scientific | 0.00 |
| US PACK INC | US PACK INC | 0.00 |
| TELEDYNE FLIR SURVEILLANCE | Teledyne Technologies | 0.00 |
| SHAWSHEEN RUBBER CO INC | SHAWSHEEN RUBBER CO INC | 0.00 |
| HENKEL OF AMERICA INC. | Henkel | 0.00 |
| CL HAUTHAWAY & SONS CORP | CL HAUTHAWAY & SONS CORP | 0.00 |
| ANDOVER HEALTHCARE INC. | Milliken | 0.00 |
| ITW/FOILMARK INC | Illinois Tool Works | 0.00 |
| CABOT CORP | Cabot Corp. | 0.00 |
| SCULLY SIGNAL | SCULLY SIGNAL | 0.00 |
| SANMINA CORP. | Sanmina | 0.00 |
| THUNDERLINE-Z | One Rock Capital Partners | 0.00 |
| MURPHYS WASTE OIL SERVICES INC | Clean Harbors Inc. | 0.00 |
| GE CO | General Electric | 0.00 |
| BROX INDUSTRIES INC | Brox Industries | 0.00 |
| THE GILLETTE CO LLC | Procter & Gamble | 0.00 |
| SIG SAUER INC | SIG SAUER INC | 0.00 |
| ELECTRONIC PRODUCTS INC | ELECTRONIC PRODUCTS INC | 0.00 |
| AOTCO METAL FINISHING LLC | AOTCO METAL FINISHING LLC | 0.00 |
| NYLON CORP OF AMERICA | WEMBLY NYCOA HOLDINGS LLC | 0.00 |
| GVS N.A. | GVS Group | 0.00 |
| BROX INDUSTRIES INC | Brox Industries | 0.00 |
| SAFETY-KLEEN SYSTEMS MARLBOROUGH (MRB) | Clean Harbors Inc. | 0.00 |
| JAYBIRD & MAIS INC | JAYBIRD & MAIS INC | 0.00 |
| RESILIENCE BOSTON INC. | NATIONAL RESILIENCE INC | 0.00 |
| ANIKA THERAPEUTICS | Anika Therapeutics | 0.00 |
| CYTIVA | Danaher | 0.00 |
| SARTORIUS STEDIM 450 DLB | SARTORIUS STEDIM BIOTECH | 0.00 |
| SKYWORKS SOLUTIONS INC | Skyworks Solutions | 0.00 |
| CURIA MASSACHUSETTS INC. | Aledade | 0.00 |
| MACOM TECHNOLOGY SOLUTIONS INC | M/A-COM TECHNOLOGY SOLUTIONS HOLDINGS | 0.00 |
