Harvey Partners, LLC — 13F Holdings & Portfolio
CIK 1406484 · latest 13F-HR filed 2026-08-14
Harvey Partners, LLC manages $1.46B in 13F-reported U.S. long-equity assets across 48 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NPO (5.36%), MTRN (4.48%), MKSI (4.30%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 6 new positions, exited 4, added to 31, and trimmed 8.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
SUITE 430
TARRYTOWN, NY 10591
$1.46B
Long-equity book
48
Distinct positions
2026-06-30
Filed 2026-08-14
+6 / −4 / ↑31 / ↓8
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- MATERION CORP$23.0M +54.4%
- ENPRO INC$14.7M +23.1%
- MARTIN MARIETTA MATLS INC$12.6M +33.4%
- GENTHERM INC$11.0M +32.0%
- SCOTTS MIRACLE-GRO CO$10.4M +38.9%
Top Trims
- ADEIA INC-$12.8M -19.3%
- CALIX INC-$12.4M -44.0%
- CHECK POINT SOFTWARE TECH LT-$10.2M -65.1%
- BWX TECHNOLOGIES INC-$4.9M -9.4%
- NOKIA CORP-$4.4M -18.4%
New Positions
- CECO ENVIRONMENTAL CORP$28.2M
- CINTAS CORP$19.0M
- SITEONE LANDSCAPE SUPPLY INC$16.5M
- ALBANY INTL CORP$16.2M
- FLOOR & DECOR HLDGS INC$9.2M
Exited Positions
- THERMON GROUP HLDGS INC$32.6M
- GREAT LAKES DREDGE & DOCK CO$10.4M
- DNOW INC$8.7M
- VARONIS SYS INC$3.0M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | ENPRO INC | NPO | 29355X107 | $78.2M | 5.36% | 207,593 | SH |
| 2 | MATERION CORP | MTRN | 576690101 | $65.4M | 4.48% | 220,068 | SH |
| 3 | MKS INC. | MKSI | 55306N104 | $62.7M | 4.30% | 141,066 | SH |
| 4 | INGEVITY CORP | NGVT | 45688C107 | $54.8M | 3.75% | 734,307 | SH |
| 5 | ADEIA INC | ADEA | 00676P107 | $53.4M | 3.66% | 1,622,353 | SH |
| 6 | LITTELFUSE INC | LFUS | 537008104 | $51.2M | 3.51% | 112,547 | SH |
| 7 | MARTIN MARIETTA MATLS INC | MLM | 573284106 | $50.2M | 3.44% | 87,035 | SH |
| 8 | AZZ INC | AZZ | 002474104 | $50.1M | 3.43% | 323,137 | SH |
| 9 | WASTE CONNECTIONS INC | WCN | 94106B101 | $47.9M | 3.28% | 287,122 | SH |
| 10 | NOVANTA INC | NOVT | 67000B104 | $47.7M | 3.27% | 294,122 | SH |
| 11 | BWX TECHNOLOGIES INC | BWXT | 05605H100 | $47.3M | 3.24% | 243,107 | SH |
| 12 | GENTHERM INC | THRM | 37253A103 | $45.2M | 3.10% | 1,326,075 | SH |
| 13 | BRIGHTVIEW HLDGS INC | BV | 10948C107 | $43.6M | 2.99% | 3,078,797 | SH |
| 14 | ASTEC INDS INC | ASTE | 046224101 | $41.2M | 2.82% | 674,000 | SH |
| 15 | BALL CORP | BALL | 058498106 | $40.8M | 2.79% | 653,286 | SH |
| 16 | ATLANTA BRAVES HLDGS INC | BATRK | 047726302 | $39.3M | 2.69% | 756,832 | SH |
| 17 | POOL CORP | POOL | 73278L105 | $37.4M | 2.56% | 174,074 | SH |
| 18 | SCOTTS MIRACLE-GRO CO | SMG | 810186106 | $37.0M | 2.53% | 542,727 | SH |
| 19 | CTS CORP | CTS | 126501105 | $35.5M | 2.43% | 545,231 | SH |
| 20 | ARMSTRONG WORLD INDS INC NEW | AWI | 04247X102 | $32.9M | 2.25% | 205,087 | SH |
| 21 | UL SOLUTIONS INC | ULS | 903731107 | $32.7M | 2.24% | 320,656 | SH |
| 22 | CASELLA WASTE SYS INC | CWST | 147448104 | $30.1M | 2.06% | 310,131 | SH |
| 23 | CECO ENVIRONMENTAL CORP | CECO | 125141101 | $28.2M | 1.93% | 311,132 | SH |
| 24 | RENTOKIL INITIAL PLC | RTO | 760125104 | $28.2M | 1.93% | 983,956 | SH |
| 25 | VISHAY PRECISION GROUP INC | VPG | 92835K103 | $26.6M | 1.82% | 177,659 | SH |
| 26 | MANCHESTER UTD PLC NEW | MANU | G5784H106 | $25.9M | 1.77% | 1,127,547 | SH |
| 27 | KNOWLES CORP | KN | 49926D109 | $25.5M | 1.74% | 613,805 | SH |
| 28 | ICHOR HOLDINGS | ICHR | G4740B105 | $23.1M | 1.58% | 205,874 | SH |
| 29 | BALCHEM CORP | BCPC | 057665200 | $23.0M | 1.57% | 136,057 | SH |
| 30 | NLIGHT INC | LASR | 65487K100 | $21.1M | 1.44% | 302,711 | SH |
| 31 | NOKIA CORP | NOK | 654902204 | $19.3M | 1.32% | 1,454,626 | SH |
| 32 | CINTAS CORP | CTAS | 172908105 | $19.0M | 1.30% | 111,547 | SH |
| 33 | ISHARES TR Put | IWM | 464287655 | $18.0M | 1.23% | 60,000 | SH |
| 34 | LIBERTY MEDIA CORP DEL | FWONK | 531229755 | $16.6M | 1.13% | 174,000 | SH |
| 35 | SITEONE LANDSCAPE SUPPLY INC | SITE | 82982L103 | $16.5M | 1.13% | 144,059 | SH |
| 36 | PALO ALTO NETWORKS INC | PANW | 697435105 | $16.4M | 1.12% | 48,000 | SH |
| 37 | ALBANY INTL CORP | AIN | 012348108 | $16.2M | 1.11% | 218,090 | SH |
| 38 | RISKIFIED LTD | RSKD | M8216R109 | $16.0M | 1.09% | 3,165,547 | SH |
| 39 | CALIX INC | CALX | 13100M509 | $15.7M | 1.07% | 420,500 | SH |
| 40 | WYNDHAM HOTELS & RESORTS INC | WH | 98311A105 | $13.3M | 0.91% | 157,567 | SH |
| 41 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $11.2M | 0.77% | 15,000 | SH |
| 42 | MATRIX SVC CO | MTRX | 576853105 | $11.2M | 0.76% | 815,023 | SH |
| 43 | FLOOR & DECOR HLDGS INC | FND | 339750101 | $9.2M | 0.63% | 155,566 | SH |
| 44 | LIBERTY MEDIA CORP DEL | FWONA | 531229771 | $8.9M | 0.61% | 102,119 | SH |
| 45 | ORION S.A. | OEC | L72967109 | $7.9M | 0.54% | 1,190,579 | SH |
| 46 | APPLIED AEROSPACE & DEFENSE | AADX | 03815J107 | $7.5M | 0.51% | 329,178 | SH |
| 47 | APPLIED DIGITAL CORP | APLD | 038169207 | $5.6M | 0.38% | 150,000 | SH |
| 48 | CHECK POINT SOFTWARE TECH LT | CHKP | M22465104 | $5.5M | 0.37% | 41,500 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $1.46B | 48 | 0001214659-26-010396 |
| 2026-03-31 | 2026-05-15 | $1.26B | 47 | 0001214659-26-006431 |
| 2025-12-31 | 2026-02-17 | $1.13B | 44 | 0001214659-26-001996 |
| 2025-09-30 | 2025-11-14 | $1.12B | 46 | 0001214659-25-016663 |