In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 15, 2024), Harvey Partners, LLC reported 40 stock positions worth $921.9 million . Its top holding was Azz (AZZ) at 6.0% of the portfolio, followed by BWX Technologies (BWXT, 4.5% ) and Huntington Ingalls Industrie (HII, 4.4% ). Compared with Q4 2023, it opened 2 new positions, sold out of 4, added to 20 and reduced 11. The biggest buy was a new position in Littelfuse (LFUS) and the biggest sale an exit from Crown (CCK).
Location Tarrytown, NY
CIK 0001406484
Portfolio Value $921.9M (Q1 2024) Holdings 40 stocks · $921.9M 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 2023 AZZ Azz Inc. 718,500 $55.5M No change BWXT BWX Technologies Inc. 405,000 $41.6M Reduce -8.6% HII Huntington Ingalls Industrie 140,000 $40.8M Reduce -15.9% VRNS Varonis Systems Inc. 840,000 $39.6M Reduce -18.1% OEC Orion SA 1,671,000 $39.3M Add +3.1% WCN Waste Connections Inc. 228,000 $39.2M Reduce -6.6% NPO Enpro Inc. 231,000 $39.0M No change THR Thermon Group Holdings Inc. 1,141,500 $37.3M Reduce -23.1% ADEA Adeia Inc. 3,191,500 $34.9M Reduce -5.9% SUM Summit Materials Inc. Class A 751,500 $33.5M Add +17.4% CPRT Copart Inc. 573,000 $33.2M Add +16.6% AWI Armstrong World Industries 246,500 $30.6M Add +2.7% GLDD Great Lakes Dredge & Dock Co. 3,419,000 $29.9M No change MLM Martin Marietta Materials 48,500 $29.8M Add +21.3% SEE Sealed Air Corp. 715,000 $26.6M Add +12.6% RTO Rentokil Initial PLC-SP ADR 850,000 $25.6M Add +3.6% GTLS Chart Industries Inc. 150,000 $24.7M Reduce -33.0% EVBG Everbridge Inc. 647,500 $22.6M Add +4.4% SRCL Stericycle Inc. 410,000 $21.6M No change MKSI MKS Inc. filed as MKS INSTRS INC 155,000 $20.6M Add +3.7% CTS CTS Corp. 427,500 $20.0M No change MRC MRC Global Inc. 1,500,000 $18.9M No change VPG Vishay Precision Group 504,000 $17.8M Reduce -10.2% MTRX Matrix Service Co. 1,355,000 $17.7M Reduce -5.1% RSKD Riskified Ltd. Class A 3,150,000 $17.0M Add +21.1% LFUS Littelfuse Inc. 70,000 $17.0M New CHKP Check Point Software Tech 102,000 $16.7M Add +9.7% VMEO Vimeo Inc. 4,000,000 $16.4M Add +14.3% CMP Compass Minerals Internation 959,000 $15.1M Add +15.5% LASR Nlight Inc. 1,133,000 $14.7M Add +39.0% EB Eventbrite Inc. Class A 2,555,000 $14.0M Add +16.1% BATRK Atlanta Braves Holdings in-C 345,000 $13.5M Add +111.7% BV Brightview Holdings Inc. 1,000,000 $11.9M New CYBR Cyberark Software Ltd./Israel 41,750 $11.1M Add +16.8% HBIO Harvard Bioscience Inc. 2,557,500 $10.8M No change FARO Faro Technologies Inc. 480,000 $10.3M Add +394.9% ASPN Aspen Aerogels Inc. 277,500 $4.9M Reduce -8.3% MANU Manchester United PLC Class A 262,500 $3.7M Add +50.0% DRIL-QUIP INC 152,000 $3.4M Add +26.7% APLD Applied Digital Corp. 250,000 $1.1M Reduce -36.3%
Options reported separately and not counted above: IWM puts ($22.1M).
Portfolio Sells Q4 2023 → Q1 2024 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 2023 % Of Portfolio Change To Portfolio ▲ CCK Crown Holdings Inc. Sold out 0.00% −2.89 THR Thermon Group Holdings Inc. Reduce -23.1% 4.05% −1.59 VRNS Varonis Systems Inc. Reduce -18.1% 4.30% −1.13 ADEA Adeia Inc. Reduce -5.9% 3.78% −1.12 GTLS Chart Industries Inc. Reduce -33.0% 2.68% −0.88 HII Huntington Ingalls Industrie Reduce -15.9% 4.43% −0.62 FOXF Fox Factory Holding Corp. Sold out 0.00% −0.57 RRX Regal Rexnord Corp. Sold out 0.00% −0.37 VPG Vishay Precision Group Reduce -10.2% 1.93% −0.30 APLD Applied Digital Corp. Reduce -36.3% 0.12% −0.19 ADI Analog Devices Inc. Sold out 0.00% −0.15 ASPN Aspen Aerogels Inc. Reduce -8.3% 0.53% −0.03 WCN Waste Connections Inc. Reduce -6.6% 4.25% +0.00 MTRX Matrix Service Co. Reduce -5.1% 1.92% +0.29 BWXT BWX Technologies Inc. Reduce -8.6% 4.51% +0.54
Portfolio Buys Q4 2023 → Q1 2024 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 2023 % Of Portfolio Change To Portfolio ▼ LFUS Littelfuse Inc. New 1.84% +1.84 BV Brightview Holdings Inc. New 1.29% +1.29 MLM Martin Marietta Materials Add +21.3% 3.23% +0.90 FARO Faro Technologies Inc. Add +394.9% 1.12% +0.86 CPRT Copart Inc. Add +16.6% 3.60% +0.79 SUM Summit Materials Inc. Class A Add +17.4% 3.63% +0.76 BATRK Atlanta Braves Holdings in-C Add +111.7% 1.46% +0.71 EVBG Everbridge Inc. Add +4.4% 2.45% +0.69 AWI Armstrong World Industries Add +2.7% 3.32% +0.57 MKSI MKS Inc. Add +3.7% 2.24% +0.44 RSKD Riskified Ltd. Class A Add +21.1% 1.85% +0.43 LASR Nlight Inc. Add +39.0% 1.60% +0.31 CYBR Cyberark Software Ltd./Israel Add +16.8% 1.20% +0.29 SEE Sealed Air Corp. Add +12.6% 2.89% +0.18 VMEO Vimeo Inc. Add +14.3% 1.77% +0.17 CHKP Check Point Software Tech Add +9.7% 1.81% +0.16 DRIL-QUIP INC Add +26.7% 0.37% +0.05 RTO Rentokil Initial PLC-SP ADR Add +3.6% 2.78% +0.04 MANU Manchester United PLC Class A Add +50.0% 0.40% −0.02 EB Eventbrite Inc. Class A Add +16.1% 1.52% −0.63 CMP Compass Minerals Internation Add +15.5% 1.64% −0.82 OEC Orion SA Add +3.1% 4.26% −0.98
Options Activity Q4 2023 → Q1 2024 Security Type Change vs Q4 2023 Underlying Shares Value ▼ SPY SS SPDR S&P 500 ETF Trust-US put Sold out 50,000 $23.8Mbefore exit IWM iShares Russell 2000 ETF put New 105,000 $22.1M
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