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Harvey Partners, LLC

SEC CIK
0001406484
Latest filing
Aug 14, 2026

Holdings in Q4 2025

Holdings as of Dec 31, 2025, filed Feb 17, 2026. Long positions only; changes compare share counts with Q3 2025.

Institution overview
Positions
43
−1 vs. Q3 2025
Portfolio value
$1.11B
+$14.4M (+1.3%) vs. Q3 2025
Filed
Feb 17, 2026
SEC
Holdings of Harvey Partners, LLC in Q4 2025
SecurityClassSharesValue% of portfolioShare changeActionHistory
NPOEnpro Inc.COM249,173$53.4M4.8%+173+0.1%AddedHistory
GLDDGreat Lakes Dredge & Dock CORPCOM3,703,215$48.6M4.4%+2,664+0.1%AddedHistory
MKSIMKS IncCOM289,197$46.2M4.1%+197+0.1%AddedHistory
ADEAAdeia Inc.COM2,616,383$45.1M4.1%+1,883+0.1%AddedHistory
LASRNlight, Inc.COM1,202,502$45.1M4.0%−194,942−13.9%ReducedHistory
BWXTBWX Technologies, Inc.COM251,472$43.5M3.9%−38,028−13.1%ReducedHistory
MTRNMATERION CorpCOM319,500$39.7M3.6%+1,500+0.5%AddedHistory
WCNWaste Connections, Inc.COM224,159$39.3M3.5%+159+0.1%AddedHistory
AZZAzz IncCOM364,585$39.1M3.5%−120,829−24.9%ReducedHistory
THRMGentherm IncCOM1,046,499$38.1M3.4%+21,999+2.1%AddedHistory
NGVTIngevity CorpCOM629,430$37.2M3.3%+28,430+4.7%AddedHistory
NOVTNovanta IncCOM304,000$36.2M3.2%+304,000NewHistory
BVBrightView Holdings, Inc.COM2,609,000$33.1M3.0%−340,000−11.5%ReducedHistory
AWIArmstrong World Industries IncCOM171,547$32.8M2.9%+5,247+3.2%AddedHistory
MLMMartin Marietta Materials IncCOM51,135$31.8M2.9%+35+0.1%AddedHistory
LFUSLittelfuse IncCOM117,500$29.7M2.7%+8,800+8.1%AddedHistory
BATRKAtlanta Braves Holdings, Inc.COM SER C742,046$29.3M2.6%+546+0.1%AddedHistory
THRThermon Group Holdings, Inc.COM772,070$28.7M2.6%+570+0.1%AddedHistory
CALXCalix, IncCOM533,732$28.3M2.5%+2320.0%AddedHistory
ASTEAstec Industries IncCOM621,700$26.9M2.4%+120,700+24.1%AddedHistory
RTORentokil Initial PLCSPONSORED ADR886,169$26.1M2.3%+1,169+0.1%AddedHistory
DNOWDNOW Inc.COM1,939,399$25.7M2.3%+1,939,399NewHistory
ULSUL Solutions Inc.CLASS A COM SHS307,758$24.3M2.2%−62,242−16.8%ReducedHistory
BALLBALL CorpCOM452,500$24.0M2.2%+452,500NewHistory
CTSCTS CorpCOM544,044$23.3M2.1%+50,544+10.2%AddedHistory
CHKPCheck Point Software Technologies LtdORD123,101$22.8M2.1%+101+0.1%AddedHistory
NOKNokia CorpSPONSORED ADR3,337,782$21.6M1.9%−953,718−22.2%ReducedHistory
Cyberark Software LtdM2682V108SHS44,235$19.7M1.8%+35+0.1%Added–
CWSTCasella Waste Systems IncCL A196,142$19.2M1.7%+142+0.1%AddedHistory
BCPCBalchem CorpCOM116,000$17.8M1.6%+116,000NewHistory
MANUManchester United plcORD CL A1,103,409$17.6M1.6%+909+0.1%AddedHistory
RSKDRiskified Ltd.SHS CL A3,095,477$15.4M1.4%+2,477+0.1%AddedHistory
VPGVishay Precision Group, Inc.COM381,573$14.7M1.3%+9,573+2.6%AddedHistory
KNKnowles CorpCOM652,500$14.0M1.3%+30,000+4.8%AddedHistory
VRNSVaronis Systems IncCOM406,085$13.3M1.2%+285+0.1%AddedHistory
SMGScotts Miracle-Gro CoStock220,000$12.8M1.2%−251,500−53.3%ReducedHistory
OECOrion S.A.COM2,409,415$12.7M1.1%−15,580−0.6%ReducedHistory
MTRXMatrix Service CoCOM852,678$9.98M0.9%+2970.0%AddedHistory
Vanguard S&P 500 ETF922908363ETF14,200$8.91M0.8%+14,200New–
ICHRIchor Holdings, Ltd.SHS482,500$8.89M0.8%+300,500+165.1%AddedHistory
APLDApplied Digital Corp.COM NEW250,000$6.13M0.6%00.0%UnchangedHistory
MIAXMiami International Holdings, Inc.COM50,000$2.22M0.2%00.0%UnchangedHistory
NPNeptune Insurance Holdings Inc.CL A20,000$583.2K0.1%+20,000NewHistory

Options (1)

Puts and calls in the same filing. Amounts are the market value of the underlying shares, which is what 13F reports.

Option positions of Harvey Partners, LLC in Q4 2025
SecurityClassPutsCalls
iShares Russell 2000 ETF464287655ETF$14.8M–

Sold out since Q3 2025 (7)

Positions held at the end of Q3 2025 that are gone from this filing.

Positions of Harvey Partners, LLC sold out since Q3 2025
SecurityClassShares in Q3 2025Value in Q3 2025% of portfolio in Q3 2025History
MRCMRC Global Inc.COM2,042,286$29.4M2.7%History
VMEOVimeo, Inc.COMMON STOCK1,988,500$15.4M1.4%History
Invesco QQQ Trust Series I46090E103ETF24,480$14.7M1.3%–
DECKDeckers Outdoor CorpCOM100,000$10.1M0.9%History
iShares Russell 2000 ETF464287655ETF40,000$9.68M0.9%–
SSTISoundthinking, Inc.COM149,544$1.80M0.2%History
HBIOHarvard Bioscience IncCOM2,050,000$898.9K0.1%History