In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 14, 2025), Harvey Partners, LLC reported 41 stock positions worth $1.0 billion . Its top holding was Azz (AZZ) at 5.7% of the portfolio, followed by Waste Connections (WCN, 5.4% ) and BWX Technologies (BWXT, 4.8% ). Compared with Q1 2025, it opened 3 new positions, sold out of 3, added to 27 and reduced 9. The biggest buy was Nlight (LASR, shares +2% ) and the biggest sale an exit from Entegris (ENTG).
Location Tarrytown, NY
CIK 0001406484
Portfolio Value $1.0B (Q2 2025) Holdings 41 stocks · $1.0B Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q1 2025 AZZ Azz Inc. 600,275 $56.7M Reduce -7.2% WCN Waste Connections Inc. 287,500 $53.7M Add +0.5% BWXT BWX Technologies Inc. 335,500 $48.3M Add +2.0% BV Brightview Holdings Inc. 2,808,000 $46.8M Add +8.8% NPO Enpro Inc. 238,892 $45.8M Add +3.9% GLDD Great Lakes Dredge & Dock Co. 3,733,000 $45.5M No change ADEA Adeia Inc. 3,189,944 $45.1M Add +0.6% FARO Faro Technologies Inc. 972,016 $42.7M Reduce -5.8% LASR Nlight Inc. 2,107,348 $41.5M Add +1.7% AWI Armstrong World Industries 214,055 $34.8M Add +0.3% BATRK Atlanta Braves Holdings in-C 709,386 $33.2M Add +7.3% SMG Scotts Miracle-Gro Co. 456,843 $30.1M Add +133.1% RTO Rentokil Initial PLC-SP ADR 1,220,000 $29.3M Reduce -25.7% CALX Calix Inc. 524,177 $27.9M Add +0.6% MKSI MKS Inc. 269,599 $26.8M Add +3.3% CHKP Check Point Software Tech 120,820 $26.7M Add +0.7% MRC MRC Global Inc. 1,936,560 $26.6M Add +3.3% MLM Martin Marietta Materials 47,930 $26.3M Add +71.2% OEC Orion SA 2,424,995 $25.4M Add +15.5% NGVT Ingevity Corp. 572,047 $24.6M Add +59.6% ULS Ul Solutions Inc. Class A 334,012 $24.3M Add +0.6% NOK Nokia Corp.-Spon ADR 4,203,952 $21.8M Add +0.6% VRNS Varonis Systems Inc. 388,759 $19.7M Reduce -16.0% THR Thermon Group Holdings Inc. 639,731 $18.0M Reduce -9.0% MANU Manchester United PLC Class A 951,698 $16.9M Add +0.7% THRM Gentherm Inc. 593,428 $16.8M Add +14.2% MTRX Matrix Service Co. 1,221,762 $16.5M Reduce -20.3% CYBR Cyberark Software Ltd./Israel 39,269 $16.0M Add +0.7% LFUS Littelfuse Inc. 66,937 $15.2M Reduce -44.7% CWST Casella Waste Systems Inc. Class A 130,325 $15.0M New ASTE Astec Industries Inc. 337,845 $14.1M Add +0.8% RSKD Riskified Ltd. Class A 2,569,145 $12.8M Add +0.6% CTS CTS Corp. 282,536 $12.0M Reduce -16.2% QQQ Invesco QQQ Trust Series 1 17,480 $9.6M New IWM iShares Russell 2000 ETF 40,000 $8.6M New VPG Vishay Precision Group 306,685 $8.6M Add +0.6% VMEO Vimeo Inc. 1,962,772 $7.9M Add +0.5% SSTI Soundthinking Inc. 277,107 $3.6M Add +3.0% CPRT Copart Inc. 61,000 $3.0M Add +38.6% APLD Applied Digital Corp. 250,000 $2.5M No change HBIO Harvard Bioscience Inc. 2,141,099 $950K Reduce -2.1%
Options reported separately and not counted above: QQQ puts ($17.9M).
Portfolio Sells Q1 2025 → Q2 2025 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q1 2025 % Of Portfolio Change To Portfolio ▲ ENTG Entegris Inc. Sold out 0.00% −1.71 SWI Solarwinds Corp. Sold out 0.00% −1.56 RTO Rentokil Initial PLC-SP ADR Reduce -25.7% 2.92% −1.54 LFUS Littelfuse Inc. Reduce -44.7% 1.51% −1.31 SEE Sealed Air Corp. Sold out 0.00% −1.26 AZZ Azz Inc. Reduce -7.2% 5.66% −0.75 MTRX Matrix Service Co. Reduce -20.3% 1.65% −0.61 THR Thermon Group Holdings Inc. Reduce -9.0% 1.79% −0.53 CTS CTS Corp. Reduce -16.2% 1.20% −0.46 VRNS Varonis Systems Inc. Reduce -16.0% 1.97% −0.25 HBIO Harvard Bioscience Inc. Reduce -2.1% 0.09% −0.05 FARO Faro Technologies Inc. Reduce -5.8% 4.26% +0.92
Portfolio Buys Q1 2025 → Q2 2025 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q1 2025 % Of Portfolio Change To Portfolio ▼ LASR Nlight Inc. Add +1.7% 4.14% +2.23 SMG Scotts Miracle-Gro Co. Add +133.1% 3.01% +1.73 CWST Casella Waste Systems Inc. Class A New 1.50% +1.50 MLM Martin Marietta Materials Add +71.2% 2.63% +1.04 BWXT BWX Technologies Inc. Add +2.0% 4.82% +0.98 QQQ Invesco QQQ Trust Series 1 New 0.96% +0.96 IWM iShares Russell 2000 ETF New 0.86% +0.86 NGVT Ingevity Corp. Add +59.6% 2.46% +0.78 BV Brightview Holdings Inc. Add +8.8% 4.67% +0.74 CALX Calix Inc. Add +0.6% 2.78% +0.59 MANU Manchester United PLC Class A Add +0.7% 1.69% +0.23 ULS Ul Solutions Inc. Class A Add +0.6% 2.43% +0.21 MKSI MKS Inc. Add +3.3% 2.67% +0.19 BATRK Atlanta Braves Holdings in-C Add +7.3% 3.31% +0.18 NPO Enpro Inc. Add +3.9% 4.57% +0.16 MRC MRC Global Inc. Add +3.3% 2.65% +0.10 ASTE Astec Industries Inc. Add +0.8% 1.41% +0.04 CYBR Cyberark Software Ltd./Israel Add +0.7% 1.59% +0.03 THRM Gentherm Inc. Add +14.2% 1.68% +0.03 CPRT Copart Inc. Add +38.6% 0.30% +0.00 VPG Vishay Precision Group Add +0.6% 0.86% −0.01 AWI Armstrong World Industries Add +0.3% 3.47% −0.10 RSKD Riskified Ltd. Class A Add +0.6% 1.28% −0.12 SSTI Soundthinking Inc. Add +3.0% 0.36% −0.18 VMEO Vimeo Inc. Add +0.5% 0.79% −0.43 NOK Nokia Corp.-Spon ADR Add +0.6% 2.17% −0.44 ADEA Adeia Inc. Add +0.6% 4.50% −0.47 CHKP Check Point Software Tech Add +0.7% 2.67% −0.57 OEC Orion SA Add +15.5% 2.54% −0.68 WCN Waste Connections Inc. Add +0.5% 5.36% −1.26
Options Activity Q1 2025 → Q2 2025 Security Type Change vs Q1 2025 Underlying Shares Value ▼ QQQ Invesco QQQ Trust Series 1 put Add +8.3% 32,500 $17.9M
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 47 $1.4B NPO, MTRN, MKSI, NGVT, ADEA Q1 2026 45 $1.2B ADEA, NPO, MKSI, NGVT, BWXT Q4 2025 43 $1.1B NPO, GLDD, MKSI, ADEA, LASR Q3 2025 44 $1.1B NPO, BWXT, AZZ, GLDD, ADEA Q2 2025 41 $1.0B AZZ, WCN, BWXT, BV, NPO Q1 2025 41 $843.4M WCN, AZZ, ADEA, RTO, NPO Q4 2024 41 $887.1M AZZ, WCN, ADEA, GLDD, RTO Q3 2024 42 $869.5M AZZ, WCN, BWXT, GLDD, ADEA Q2 2024 39 $808.6M AZZ, WCN, BWXT, HII, OEC Q1 2024 40 $921.9M AZZ, BWXT, HII, VRNS, OEC