Harvey Partners, LLC — 13F Holdings

2026 Q2  ·  53 Positions

2026 Q2 Portfolio Activity

In 2026 Q2, Harvey Partners, LLC maintained a portfolio of 53 distinct positions. The most significant new addition was CECO ENVIRONMENTAL CORP, now representing 1.93% of the total fund value. They heavily accumulated shares in ISHARES TR, increasing the position by 84.6%. Conversely, Harvey Partners, LLC completely exited their position in THERMON GROUP HLDGS INC.
Position History hover any row below to update
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Harvey Partners, LLC New York, NY Hedge Fund AUM $1,431M
PCA Score Concentration Risk
Risk ENB
Total Positions
53
Quarter
2026 Q2
Top Holding
NPO (5.4%)
Top 10 Concentration
38.5%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 53

Harvey Partners, LLC Full Holdings List — 2026 Q2

Stock History Sector / Type Port % Prev % Rank / Prev Conviction
Freshness
Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
NPO
ENPRO INC
Industrials 5.36% 5.06% #1 1
Prev: #2
4.6
-45,907 -18.1%
P
S
207,593 $78,248,029 2009 Q2 13F Filing 2026-06-30 2026-08-14
MTRN
MATERION CORP
Basic Materials 4.48% 3.37% #2 5
Prev: #7
3.3
-73,053 -24.9%
P
S
220,068 $65,446,023 2012 Q3 13F Filing 2026-06-30 2026-08-14
MKSI
MKS INC.
Technology 4.30% 4.45% #3
Prev: #3
2.7
-102,330 -42.0%
P
S
141,066 $62,746,157 2023 Q2 13F Filing 2026-06-30 2026-08-14
NGVT
INGEVITY CORP
Basic Materials 3.75% 4.21% #4
Prev: #4
2.5
-9,193 -1.2%
P
S
734,307 $54,830,704 2024 Q3 13F Filing 2026-06-30 2026-08-14
ADEA
ADEIA INC
Technology 3.66% 5.27% #5 4
Prev: #1
2.0
-1,132,147 -41.1%
P
S
1,622,353 $53,424,084 2022 Q4 13F Filing 2026-06-30 2026-08-14
LFUS
LITTELFUSE INC
Technology 3.51% 3.28% #6 3
Prev: #9
1.9
-8,953 -7.4%
P
S
112,547 $51,246,026 2024 Q1 13F Filing 2026-06-30 2026-08-14
MLM
MARTIN MARIETTA...
Basic Materials 3.44% 2.99% #7 4
Prev: #11
3.9
23,110 36.2%
P
S
87,035 $50,193,085 2011 Q3 13F Filing 2026-06-30 2026-08-14
AZZ
AZZ INC
Industrials 3.43% 3.50% #8 2
Prev: #6
1.9
-28,363 -8.1%
P
S
323,137 $50,102,392 2008 Q2 13F Filing 2026-06-30 2026-08-14
WCN
WASTE CONNECTIO...
Industrials 3.28% 3.34% #9 1
Prev: #8
3.3
28,622 11.1%
P
S
287,122 $47,860,366 2022 Q4 13F Filing 2026-06-30 2026-08-14
NOVT
NOVANTA INC
Technology 3.27% 3.01% #10
Prev: #10
1.8
-25,878 -8.1%
P
S
294,122 $47,718,353 2025 Q4 13F Filing 2026-06-30 2026-08-14
BWXT
BWX TECHNOLOGIE...
Industrials 3.24% 4.15% #11 6
Prev: #5
1.8
-12,193 -4.8%
P
S
243,107 $47,320,778 2017 Q1 13F Filing 2026-06-30 2026-08-14
THRM
GENTHERM INC
Consumer Cyclical 3.10% 2.73% #12 3
Prev: #15
3.2
92,575 7.5%
P
S
1,326,075 $45,232,418 2024 Q4 13F Filing 2026-06-30 2026-08-14
BV
BRIGHTVIEW HLDG...
Industrials 2.99% 2.76% #13
Prev: #13
1.7
140,797 4.8%
P
S
3,078,797 $43,626,553 2024 Q1 13F Filing 2026-06-30 2026-08-14
ASTE
ASTEC INDS INC
Industrials 2.82% 2.88% #14 2
Prev: #12
1.6
1,800 0.3%
P
S
674,000 $41,242,060 2007 Q4 13F Filing 2026-06-30 2026-08-14
BALL
BALL CORP
Consumer Cyclical 2.79% 2.63% #15 1
Prev: #16
3.1
93,286 16.7%
P
S
653,286 $40,765,046 2025 Q4 13F Filing 2026-06-30 2026-08-14
BATRK
ATLANTA BRAVES ...
Communication Services 2.69% 2.74% #16 2
Prev: #14
1.6
-49,168 -6.1%
P
S
756,832 $39,279,581 2023 Q4 13F Filing 2026-06-30 2026-08-14
POOL
POOL CORP
Industrials 2.56% 2.17% #17 6
Prev: #23
3.5
39,074 28.9%
P
S
174,074 $37,408,503 2026 Q1 13F Filing 2026-06-30 2026-08-14
SMG
SCOTTS MIRACLE-...
Basic Materials 2.53% 2.12% #18 6
Prev: #24
3.5
105,227 24.1%
P
S
542,727 $36,965,136 2025 Q1 13F Filing 2026-06-30 2026-08-14
CTS
CTS CORP
Technology 2.43% 2.26% #19 2
Prev: #21
1.5
-49,169 -8.3%
P
S
545,231 $35,543,609 2020 Q3 13F Filing 2026-06-30 2026-08-14
AWI
ARMSTRONG WORLD...
Industrials 2.25% 2.57% #20 2
Prev: #18
1.4
9,087 4.6%
P
S
205,087 $32,900,057 2020 Q2 13F Filing 2026-06-30 2026-08-14
ULS
UL SOLUTIONS IN...
Industrials 2.24% 2.34% #21 1
Prev: #20
1.4
-21,844 -6.4%
P
S
320,656 $32,662,020 2024 Q2 13F Filing 2026-06-30 2026-08-14
CWST
CASELLA WASTE S...
Industrials 2.06% 1.78% #22 5
Prev: #27
2.8
28,631 10.2%
P
S
310,131 $30,073,403 2025 Q2 13F Filing 2026-06-30 2026-08-14
CECO
CECO ENVIRONMEN...
Industrials 1.93% #23
Prev: #—
4.3
311,132
NEW
311,132 $28,232,118 2026 Q2 13F Filing 2026-06-30 2026-08-14
RTO
RENTOKIL INITIA...
Industrials 1.93% 2.44% #24 5
Prev: #19
1.3
8,456 0.9%
P
S
983,956 $28,150,981 2022 Q4 13F Filing 2026-06-30 2026-08-14
VPG
VISHAY PRECISIO...
Technology 1.82% 1.39% #25 6
Prev: #31
0.7
-223,912 -55.8%
P
S
177,659 $26,632,861 2013 Q3 13F Filing 2026-06-30 2026-08-14
MANU
MANCHESTER UTD ...
Communication Services 1.77% 1.62% #26 3
Prev: #29
1.2
-84,953 -7.0%
P
S
1,127,547 $25,854,653 2022 Q1 13F Filing 2026-06-30 2026-08-14
KN
KNOWLES CORP
Technology 1.74% 1.36% #27 6
Prev: #33
1.2
-50,695 -7.6%
P
S
613,805 $25,460,631 2014 Q2 13F Filing 2026-06-30 2026-08-14
ICHR
ICHOR HOLDINGS
Technology 1.58% 1.74% #28
Prev: #28
0.6
-263,305 -56.1%
P
S
205,874 $23,115,533 2016 Q4 13F Filing 2026-06-30 2026-08-14
BCPC
BALCHEM CORP
Basic Materials 1.57% 1.55% #29 1
Prev: #30
2.6
21,257 18.5%
P
S
136,057 $22,986,830 2025 Q4 13F Filing 2026-06-30 2026-08-14
LASR
NLIGHT INC
Technology 1.44% 1.88% #30 4
Prev: #26
0.6
-110,873 -26.8%
P
S
302,711 $21,074,740 2023 Q1 13F Filing 2026-06-30 2026-08-14
NOK
NOKIA CORP
Technology 1.32% 1.88% #31 6
Prev: #25
0.5
-1,490,874 -50.6%
P
S
1,454,626 $19,317,433 2017 Q1 13F Filing 2026-06-30 2026-08-14
CTAS
CINTAS CORP
Industrials 1.30% #32
Prev: #—
4.0
111,547
NEW
111,547 $18,971,914 2026 Q2 13F Filing 2026-06-30 2026-08-14
IWM
ISHARES TR
PUT
PUT Option 1.23% 0.64% #33 11
Prev: #44
3.5
27,500 84.6%
P
S
60,000 $18,027,000 2008 Q3 13F Filing 2026-06-30 2026-08-14
FWONK
LIBERTY MEDIA C...
Communication Services 1.13% 0.84% #34 3
Prev: #37
3.0
50,500 40.9%
P
S
174,000 $16,554,360 2026 Q1 13F Filing 2026-06-30 2026-08-14
SITE
SITEONE LANDSCA...
Industrials 1.13% #35
Prev: #—
4.0
144,059
NEW
144,059 $16,481,790 2016 Q2 13F Filing 2026-06-30 2026-08-14
PANW
PALO ALTO NETWO...
Technology 1.12% 1.16% #36 1
Prev: #35
0.4
-43,000 -47.3%
P
S
48,000 $16,368,960 2013 Q2 13F Filing 2026-06-30 2026-08-14
AIN
ALBANY INTL COR...
Consumer Cyclical 1.11% #37
Prev: #—
3.9
218,090
NEW
218,090 $16,247,705 2026 Q2 13F Filing 2026-06-30 2026-08-14
RSKD
RISKIFIED LTD
Technology 1.09% 1.06% #38 2
Prev: #36
0.9
-230,453 -6.8%
P
S
3,165,547 $15,954,357 2022 Q4 13F Filing 2026-06-30 2026-08-14
CALX
CALIX INC
Technology 1.07% 2.23% #39 17
Prev: #22
0.4
-152,000 -26.6%
P
S
420,500 $15,693,060 2024 Q4 13F Filing 2026-06-30 2026-08-14
WH
WYNDHAM HOTELS ...
Consumer Cyclical 0.91% 0.78% #40
Prev: #40
2.9
36,567 30.2%
P
S
157,567 $13,268,717 2026 Q1 13F Filing 2026-06-30 2026-08-14
SPY
STATE STR SPDR ...
ETF 0.77% 0.67% #41 2
Prev: #43
2.3
2,000 15.4%
P
S
15,000 $11,201,550 2014 Q4 13F Filing 2026-06-30 2026-08-14
MTRX
MATRIX SVC CO
Industrials 0.76% 0.83% #42 4
Prev: #38
0.8
-89,977 -9.9%
P
S
815,023 $11,165,815 2012 Q4 13F Filing 2026-06-30 2026-08-14
FND
FLOOR & DECOR H...
Consumer Cyclical 0.63% #43
Prev: #—
3.8
155,566
NEW
155,566 $9,234,398 2026 Q2 13F Filing 2026-06-30 2026-08-14
FWONA
LIBERTY MEDIA C...
Communication Services 0.61% 0.37% #44 1
Prev: #45
3.2
42,119 70.2%
P
S
102,119 $8,939,497 2026 Q1 13F Filing 2026-06-30 2026-08-14
OEC
ORION S.A.
Basic Materials 0.54% 0.67% #45 3
Prev: #42
0.7
-113,421 -8.7%
P
S
1,190,579 $7,893,539 2014 Q3 13F Filing 2026-06-30 2026-08-14
N/A
APPLIED AEROSPA...
Unknown 0.51% #46
Prev: #—
3.7
329,178
NEW
329,178 $7,498,675 13F Filing 2026-06-30 2026-08-14
APLD
APPLIED DIGITAL...
Technology 0.38% 0.28% #47 1
Prev: #46
1.2
no change no change
P
S
150,000 $5,595,000 2022 Q2 13F Filing 2026-06-30 2026-08-14
CHKP
CHECK POINT SOF...
Technology 0.37% 1.24% #48 14
Prev: #34
0.1
-68,000 -62.1%
P
S
41,500 $5,454,345 2023 Q3 13F Filing 2026-06-30 2026-08-14
VRNS
VARONIS SYS INC
Technology 0.00% 0.24%
Sold All 😨
(Was: #47)
0.0
-140,000 -100.0%
CLOSED
$— 2022 Q3 13F Filing 2026-06-30 2026-08-14
DNOW
DNOW INC
Industrials 0.00% 0.69%
Sold All 😨
(Was: #41)
0.0
-730,943 -100.0%
CLOSED
$— 2025 Q4 13F Filing 2026-06-30 2026-08-14
Showing 1-50 of 53 holdings

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