In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 15, 2025), Harvey Partners, LLC reported 41 stock positions worth $843.4 million . Its top holding was Waste Connections (WCN) at 6.6% of the portfolio, followed by Azz (AZZ, 6.4% ) and Adeia (ADEA, 5.0% ). Compared with Q4 2024, it opened 2 new positions, sold out of 2, added to 27 and reduced 8. The biggest buy was a new position in Nokia Corp.-Spon ADR (NOK) and the biggest sale an exit from Summit Materials Class A (SUM).
Location Tarrytown, NY
CIK 0001406484
Portfolio Value $843.4M (Q1 2025) Holdings 41 stocks · $843.4M 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 Q4 2024 WCN Waste Connections Inc. 286,000 $55.8M Add +4.4% AZZ Azz Inc. 647,000 $54.1M Reduce -5.0% ADEA Adeia Inc. 3,172,500 $41.9M Add +1.7% RTO Rentokil Initial PLC-SP ADR 1,642,000 $37.6M Add +0.9% NPO Enpro Inc. 230,000 $37.2M Add +5.8% BV Brightview Holdings Inc. 2,580,500 $33.1M Add +32.6% GLDD Great Lakes Dredge & Dock Co. 3,733,000 $32.5M Add +0.8% BWXT BWX Technologies Inc. 329,000 $32.5M Reduce -6.8% AWI Armstrong World Industries 213,500 $30.1M No change FARO Faro Technologies Inc. 1,032,000 $28.2M Add +0.2% CHKP Check Point Software Tech 120,000 $27.4M Add +9.6% OEC Orion SA 2,099,000 $27.1M Add +16.1% BATRK Atlanta Braves Holdings in-C 661,000 $26.4M Add +11.6% LFUS Littelfuse Inc. 121,000 $23.8M Add +0.8% NOK Nokia Corp.-Spon ADR 4,177,500 $22.0M New MRC MRC Global Inc. 1,874,000 $21.5M Add +29.8% MKSI MKS Inc. filed as MKS INSTRS INC 261,000 $20.9M Add +37.7% THR Thermon Group Holdings Inc. 703,000 $19.6M Reduce -8.1% MTRX Matrix Service Co. 1,533,000 $19.1M Add +0.7% VRNS Varonis Systems Inc. 463,000 $18.7M Reduce -7.6% ULS Ul Solutions Inc. Class A 332,000 $18.7M Add +6.1% CALX Calix Inc. 521,000 $18.5M Add +22.6% LASR Nlight Inc. 2,073,000 $16.1M Add +16.8% ENTG Entegris Inc. 164,500 $14.4M Add +36.0% NGVT Ingevity Corp. 358,500 $14.2M Add +10.7% CTS CTS Corp. 337,000 $14.0M Add +4.5% THRM Gentherm Inc. 519,500 $13.9M Add +48.9% MLM Martin Marietta Materials 28,000 $13.4M Add +14.3% CYBR Cyberark Software Ltd./Israel 39,000 $13.2M No change SWI Solarwinds Corp. 712,000 $13.1M Reduce -3.6% MANU Manchester United PLC Class A 945,000 $12.4M Add +8.4% RSKD Riskified Ltd. Class A 2,553,000 $11.8M Add +5.0% ASTE Astec Industries Inc. 335,000 $11.5M Add +15.9% SMG Scotts Miracle-Gro Co. 196,000 $10.8M New SEE Sealed Air Corp. 367,000 $10.6M Add +11.4% VMEO Vimeo Inc. 1,954,000 $10.3M Reduce -53.6% VPG Vishay Precision Group 305,000 $7.3M Reduce -23.6% SSTI Soundthinking Inc. 269,000 $4.6M Add +89.4% CPRT Copart Inc. 44,000 $2.5M No change APLD Applied Digital Corp. 250,000 $1.4M No change HBIO Harvard Bioscience Inc. 2,187,500 $1.2M Reduce -18.5%
Options reported separately and not counted above: QQQ puts ($14.1M).
Portfolio Sells Q4 2024 → Q1 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 Q4 2024 % Of Portfolio Change To Portfolio ▲ SUM Summit Materials Inc. Class A Sold out 0.00% −4.61 VMEO Vimeo Inc. Reduce -53.6% 1.22% −1.82 DY Dycom Industries Inc. Sold out 0.00% −1.67 BWXT BWX Technologies Inc. Reduce -6.8% 3.85% −0.58 HBIO Harvard Bioscience Inc. Reduce -18.5% 0.15% −0.49 VRNS Varonis Systems Inc. Reduce -7.6% 2.22% −0.29 VPG Vishay Precision Group Reduce -23.6% 0.87% −0.18 THR Thermon Group Holdings Inc. Reduce -8.1% 2.32% −0.16 AZZ Azz Inc. Reduce -5.0% 6.41% +0.13 SWI Solarwinds Corp. Reduce -3.6% 1.56% +0.37
Portfolio Buys Q4 2024 → Q1 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 Q4 2024 % Of Portfolio Change To Portfolio ▼ NOK Nokia Corp.-Spon ADR New 2.61% +2.61 WCN Waste Connections Inc. Add +4.4% 6.62% +1.32 SMG Scotts Miracle-Gro Co. New 1.28% +1.28 CHKP Check Point Software Tech Add +9.6% 3.24% +0.94 BATRK Atlanta Braves Holdings in-C Add +11.6% 3.14% +0.58 CALX Calix Inc. Add +22.6% 2.19% +0.52 MRC MRC Global Inc. Add +29.8% 2.55% +0.47 ULS Ul Solutions Inc. Class A Add +6.1% 2.22% +0.46 BV Brightview Holdings Inc. Add +32.6% 3.93% +0.42 FARO Faro Technologies Inc. Add +0.2% 3.34% +0.40 ENTG Entegris Inc. Add +36.0% 1.71% +0.36 SSTI Soundthinking Inc. Add +89.4% 0.54% +0.33 ASTE Astec Industries Inc. Add +15.9% 1.37% +0.27 MKSI MKS Inc. Add +37.7% 2.48% +0.25 MTRX Matrix Service Co. Add +0.7% 2.26% +0.21 NGVT Ingevity Corp. Add +10.7% 1.68% +0.19 NPO Enpro Inc. Add +5.8% 4.41% +0.18 MLM Martin Marietta Materials Add +14.3% 1.59% +0.16 RSKD Riskified Ltd. Class A Add +5.0% 1.40% +0.10 THRM Gentherm Inc. Add +48.9% 1.65% +0.08 ADEA Adeia Inc. Add +1.7% 4.97% +0.06 SEE Sealed Air Corp. Add +11.4% 1.26% +0.00 OEC Orion SA Add +16.1% 3.22% +0.00 RTO Rentokil Initial PLC-SP ADR Add +0.9% 4.46% −0.19 LASR Nlight Inc. Add +16.8% 1.91% −0.19 MANU Manchester United PLC Class A Add +8.4% 1.47% −0.24 CTS CTS Corp. Add +4.5% 1.66% −0.26 LFUS Littelfuse Inc. Add +0.8% 2.82% −0.37 GLDD Great Lakes Dredge & Dock Co. Add +0.8% 3.85% −0.86
Options Activity Q4 2024 → Q1 2025 Security Type Change vs Q4 2024 Underlying Shares Value ▼ QQQ Invesco QQQ Trust Series 1 put New 30,000 $14.1M SPY SS SPDR S&P 500 ETF Trust-US put Sold out 22,700 $13.3Mbefore exit
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