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Harvey Partners, LLC

SEC CIK
0001406484
Latest filing
Aug 14, 2026

Holdings in Q1 2026

Holdings as of Mar 31, 2026, filed May 15, 2026. Long positions only; changes compare share counts with Q4 2025.

Institution overview
Positions
45
+2 vs. Q4 2025
Portfolio value
$1.23B
+$117.4M (+10.5%) vs. Q4 2025
Filed
May 15, 2026
SEC
Holdings of Harvey Partners, LLC in Q1 2026
SecurityClassSharesValue% of portfolioShare changeActionHistory
ADEAAdeia Inc.COM2,754,500$66.2M5.4%+138,117+5.3%AddedHistory
NPOEnpro Inc.COM253,500$63.5M5.2%+4,327+1.7%AddedHistory
MKSIMKS IncCOM243,396$55.9M4.5%−45,801−15.8%ReducedHistory
NGVTIngevity CorpCOM743,500$53.0M4.3%+114,070+18.1%AddedHistory
BWXTBWX Technologies, Inc.COM255,300$52.2M4.2%+3,828+1.5%AddedHistory
AZZAzz IncCOM351,500$44.0M3.6%−13,085−3.6%ReducedHistory
MTRNMATERION CorpCOM293,121$42.4M3.4%−26,379−8.3%ReducedHistory
WCNWaste Connections, Inc.COM258,500$42.0M3.4%+34,341+15.3%AddedHistory
LFUSLittelfuse IncCOM121,500$41.2M3.3%+4,000+3.4%AddedHistory
NOVTNovanta IncCOM320,000$37.8M3.1%+16,000+5.3%AddedHistory
MLMMartin Marietta Materials IncCOM63,925$37.6M3.1%+12,790+25.0%AddedHistory
ASTEAstec Industries IncCOM672,200$36.2M2.9%+50,500+8.1%AddedHistory
BVBrightView Holdings, Inc.COM2,938,000$34.6M2.8%+329,000+12.6%AddedHistory
BATRKAtlanta Braves Holdings, Inc.COM SER C806,000$34.4M2.8%+63,954+8.6%AddedHistory
THRMGentherm IncCOM1,233,500$34.3M2.8%+187,001+17.9%AddedHistory
BALLBALL CorpCOM560,000$33.1M2.7%+107,500+23.8%AddedHistory
THRThermon Group Holdings, Inc.COM646,728$32.6M2.6%−125,342−16.2%ReducedHistory
AWIArmstrong World Industries IncCOM196,000$32.3M2.6%+24,453+14.3%AddedHistory
RTORentokil Initial PLCSPONSORED ADR975,500$30.7M2.5%+89,331+10.1%AddedHistory
ULSUL Solutions Inc.CLASS A COM SHS342,500$29.4M2.4%+34,742+11.3%AddedHistory
CTSCTS CorpCOM594,400$28.4M2.3%+50,356+9.3%AddedHistory
CALXCalix, IncCOM572,500$28.0M2.3%+38,768+7.3%AddedHistory
POOLPool CorpCOM135,000$27.3M2.2%+135,000NewHistory
SMGScotts Miracle-Gro CoStock437,500$26.6M2.2%+217,500+98.9%AddedHistory
NOKNokia CorpSPONSORED ADR2,945,500$23.7M1.9%−392,282−11.8%ReducedHistory
LASRNlight, Inc.COM413,584$23.6M1.9%−788,918−65.6%ReducedHistory
CWSTCasella Waste Systems IncCL A281,500$22.3M1.8%+85,358+43.5%AddedHistory
ICHRIchor Holdings, Ltd.SHS469,179$21.9M1.8%−13,321−2.8%ReducedHistory
MANUManchester United plcORD CL A1,212,500$20.4M1.7%+109,091+9.9%AddedHistory
BCPCBalchem CorpCOM114,800$19.5M1.6%−1,200−1.0%ReducedHistory
VPGVishay Precision Group, Inc.COM401,571$17.4M1.4%+19,998+5.2%AddedHistory
KNKnowles CorpCOM664,500$17.1M1.4%+12,000+1.8%AddedHistory
CHKPCheck Point Software Technologies LtdORD109,500$15.6M1.3%−13,601−11.0%ReducedHistory
PANWPalo Alto Networks IncStock91,000$14.6M1.2%+91,000NewHistory
RSKDRiskified Ltd.SHS CL A3,396,000$13.3M1.1%+300,523+9.7%AddedHistory
FWONKLiberty Media CorpCOM LBTY ONE S C123,500$10.5M0.9%+123,500NewHistory
MTRXMatrix Service CoCOM905,000$10.4M0.8%+52,322+6.1%AddedHistory
GLDDGreat Lakes Dredge & Dock CORPCOM610,000$10.4M0.8%−3,093,215−83.5%ReducedHistory
WHWyndham Hotels & Resorts, Inc.COM121,000$9.83M0.8%+121,000NewHistory
DNOWDNOW Inc.COM730,943$8.71M0.7%−1,208,456−62.3%ReducedHistory
OECOrion S.A.COM1,304,000$8.48M0.7%−1,105,415−45.9%ReducedHistory
SPYSPDR S&P 500 ETF TrustETF13,000$8.45M0.7%+13,000NewHistory
FWONALiberty Media CorpCOM LBTY ONE S A60,000$4.68M0.4%+60,000NewHistory
APLDApplied Digital Corp.COM NEW150,000$3.56M0.3%−100,000−40.0%ReducedHistory
VRNSVaronis Systems IncCOM140,000$3.01M0.2%−266,085−65.5%ReducedHistory

Options (2)

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 Q1 2026
SecurityClassPutsCalls
Invesco QQQ Trust Series I46090E103ETF$17.3M–
iShares Russell 2000 ETF464287655ETF$8.06M–

Sold out since Q4 2025 (4)

Positions held at the end of Q4 2025 that are gone from this filing.

Positions of Harvey Partners, LLC sold out since Q4 2025
SecurityClassShares in Q4 2025Value in Q4 2025% of portfolio in Q4 2025History
Cyberark Software LtdM2682V108SHS44,235$19.7M1.8%–
Vanguard S&P 500 ETF922908363ETF14,200$8.91M0.8%–
MIAXMiami International Holdings, Inc.COM50,000$2.22M0.2%History
NPNeptune Insurance Holdings Inc.CL A20,000$583.2K0.1%History