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Harvey Partners, LLC

CIK 1406484 · latest 13F filed 14 August 2026 · Read the filing on EDGAR

Harvey Partners, LLC reported 47 US-listed holdings worth $1.44 billion in its 13F for the quarter ended 30 June 2026, filed 14 August 2026. Its largest: Enpro Inc. (5.4%), Materion Corp. (4.5%) and MKS Inc. (4.4%). Against the quarter before, it opened 6 positions, added to 16, trimmed 24 and sold out of 4.

Reported holdings$1.44B+17.1% on Q1 2026
Positions47+2 on Q1 2026
The largest ten39.0%of its reported holdings
Latest 13FQ2 2026filed 14 August 2026
Where the money is
Added toTrimmed
NPO5.4%MTRN4.5%MKSI4.4%NGVT3.8%ADEA3.7%LFUS3.6%MLM3.5%AZZ3.5%WCN3.3%NOVT3.3%BWXT3.3%THRM3.1%BV3.0%ASTE2.9%33 more48.7%

The 14 largest of its 47 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.

Reported holdings, quarter by quarter
Q3 2024: $869.5 million in 42 positions$869MQ3 24Q4 2024: $887.1 million in 41 positions$887MQ4 24Q1 2025: $843.4 million in 41 positions$843MQ1 25Q2 2025: $1.00 billion in 41 positions$1.00BQ2 25Q3 2025: $1.10 billion in 44 positions$1.10BQ3 25Q4 2025: $1.11 billion in 43 positions$1.11BQ4 25Q1 2026: $1.23 billion in 45 positions$1.23BQ1 26Q2 2026: $1.44 billion in 47 positions$1.44BQ2 26

What the fund reported holding at each quarter's end; hover a bar for the number of positions

What it did on the quarter

Opened 6Added 16Held 1Trimmed 24Sold out 4
Opened: 6Added: 16Held: 1Trimmed: 24Sold out: 4

Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held

Opened 6

  1. Ceco Environmental Corp. Com CECO$28.2 million
  2. Cintas Corp. CTAS$19.0 million
  3. Siteone Landscape Supply Inc. SITE$16.5 million
  4. Albany International Corp. AIN$16.2 million
  5. Floor & Decor Holdings, Inc. FND$9.2 million
  6. Applied Aerospace & Defense AADX$7.5 million

Added to 16

  1. Martin Marietta Materials Inc. MLM+23,110 shares · +36%
  2. Pool Corp. POOL+39,074 shares · +29%
  3. Scotts Miracle-Gro Co. SMG+105,227 shares · +24%
  4. Ball Corp. BALL+93,286 shares · +17%
  5. Liberty Media Corp. Del FWONK+50,500 shares · +41%
  6. Waste Connections Inc. WCN+28,622 shares · +11%
  7. Liberty Media Corp. Del FWONA+42,119 shares · +70%
  8. Balchem Corp. BCPC+21,257 shares · +19%

and 8 more in the table below

Trimmed 24

  1. MKS Inc. MKSI-102,330 shares · -42%
  2. Adeia Inc. ADEA-1.1 million shares · -41%
  3. Vishay Precision Group Inc. VPG-223,912 shares · -56%
  4. Ichor Holdings, Ltd. ICHR-263,305 shares · -56%
  5. Materion Corp. MTRN-73,053 shares · -25%
  6. Nokia Corporation NOK-1.5 million shares · -51%
  7. Enpro Inc. NPO-45,907 shares · -18%
  8. Palo Alto Networks Inc. PANW-43,000 shares · -47%

and 16 more in the table below

Sold out of 4

  1. Thermon Group Hldgs Inc. THR$32.6 million last quarter
  2. Great Lakes Dredge & Dock Co. GLDD$10.4 million last quarter
  3. Dnow Inc. DNOW$8.7 million last quarter
  4. Varonis Sys Inc. VRNS$3.0 million last quarter

What it holds

CompanySharesValueOf its bookChange in shares
Enpro Inc. NPO207,593$78.2 million5.43%-45,907
Materion Corp. MTRN220,068$65.4 million4.54%-73,053
MKS Inc. MKSI141,066$62.7 million4.35%-102,330
Ingevity Corp. NGVT734,307$54.8 million3.80%-9,193
Adeia Inc. ADEA1,622,353$53.4 million3.70%-1,132,147
Littelfuse Inc. LFUS112,547$51.2 million3.55%-8,953
Martin Marietta Materials Inc. MLM87,035$50.2 million3.48%+23,110
AZZ Inc. AZZ323,137$50.1 million3.47%-28,363
Waste Connections Inc. WCN287,122$47.9 million3.32%+28,622
Novanta Inc. NOVT294,122$47.7 million3.31%-25,878
BWX Technologies, Inc. BWXT243,107$47.3 million3.28%-12,193
Gentherm Inc. THRM1,326,075$45.2 million3.14%+92,575
Brightview Hldgs Inc. BV3,078,797$43.6 million3.03%+140,797
Astec Industries Inc. ASTE674,000$41.2 million2.86%+1,800
Ball Corp. BALL653,286$40.8 million2.83%+93,286
Atlanta Braves Holdings Inc BATRK756,832$39.3 million2.72%-49,168
Pool Corp. POOL174,074$37.4 million2.59%+39,074
Scotts Miracle-Gro Co. SMG542,727$37.0 million2.56%+105,227
CTS Corp. CTS545,231$35.5 million2.46%-49,169
Armstrong World Industries Inc. AWI205,087$32.9 million2.28%+9,087
UL Solutions Inc. ULS320,656$32.7 million2.26%-21,844
Casella Waste Systems Inc. CWST310,131$30.1 million2.09%+28,631
Ceco Environmental Corp. Com CECO311,132$28.2 million1.96%new
Rentokil Initial PLC RTO983,956$28.2 million1.95%+8,456
Vishay Precision Group Inc. VPG177,659$26.6 million1.85%-223,912
Manchester Utd PLC New MANU1,127,547$25.9 million1.79%-84,953
Knowles Corp. KN613,805$25.5 million1.77%-50,695
Ichor Holdings, Ltd. ICHR205,874$23.1 million1.60%-263,305
Balchem Corp. BCPC136,057$23.0 million1.59%+21,257
Nlight Inc. LASR302,711$21.1 million1.46%-110,873
Nokia Corporation NOK1,454,626$19.3 million1.34%-1,490,874
Cintas Corp. CTAS111,547$19.0 million1.32%new
Liberty Media Corp. Del FWONK174,000$16.6 million1.15%+50,500
Siteone Landscape Supply Inc. SITE144,059$16.5 million1.14%new
Palo Alto Networks Inc. PANW48,000$16.4 million1.14%-43,000
Albany International Corp. AIN218,090$16.2 million1.13%new
Riskified Ltd RSKD3,165,547$16.0 million1.11%-230,453
Calix, Inc. CALX420,500$15.7 million1.09%-152,000
Wyndham Hotels & Resorts, Inc. WH157,567$13.3 million0.92%+36,567
SPDR S&P 500 SPY15,000$11.2 million0.78%+2,000
Matrix SVC Co. MTRX815,023$11.2 million0.77%-89,977
Floor & Decor Holdings, Inc. FND155,566$9.2 million0.64%new
Liberty Media Corp. Del FWONA102,119$8.9 million0.62%+42,119
Orion S.a. OEC1,190,579$7.9 million0.55%-113,421
Applied Aerospace & Defense AADX329,178$7.5 million0.52%new
Applied Digital Corp. APLD150,000$5.6 million0.39%no change
Check Point Software Technologies Ltd. CHKP41,500$5.5 million0.38%-68,000
Every US-listed position in the fund's 13F for the quarter ended 30 June 2026, by the value it reported.
Read moreChange is shares against its 13F for the quarter before; the 4 it sold out of are in the box above.

Options it reported

CompanyOptionShares under the optionsValue of those shares
iShares Russell 2000 ETF IWMPuts60,000$18.0 million

1 option lines. A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost; they are not counted in the holdings above.