Harvey Partners, LLC
Long book
$1.23B
Q1 2026
Positions
45
Top-10 weight
40%
concentration
Last quarter
+25.2%
SPY +14.8%
Turnover
20%
of book per quarter
Strategy in plain words
auto-generated from filingsHarvey Partners, LLC is a diversified fundamental manager, running a $1.23B US long book across 45 positions.
The portfolio is moderately concentrated (top 10 ≈ 40% of the book). Turnover is modest: positions are typically held for years. Current anchor positions: ADEIA INC, ENPRO INC, MKS INC, INGEVITY CORP, BWX TECHNOLOGIES INC.
Over the last 9 quarters its long book ran on average 1.3pp per quarter ahead of the S&P 500, beating the index in 4 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
-4.1%
Q2 2024
+2.8%
Q3 2024
-2.2%
Q4 2024
-8.2%
Q1 2025
+16.4%
Q2 2025
+8.8%
Q3 2025
+1.5%
Q4 2025
+12.1%
Q1 2026
+25.2%
Sector allocation
Industrials 27%
Technology 18%
Other 16%
Materials 9%
Communications 9%
Services media 9%
Utilities 6%
Consumer staples 3%
Long book by quarter
What does Harvey Partners, own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| ADEA ADEIA INC | Communications | 2.8M | $66.2M | 5.4% | +5.3% |
| NPO ENPRO INC | Other | 253.5K | $63.5M | 5.2% | +1.7% |
| MKSI MKS INC | Technology | 243.4K | $55.9M | 4.5% | -15.8% |
| NGVT INGEVITY CORP | Materials | 743.5K | $53.0M | 4.3% | +18.1% |
| BWXT BWX TECHNOLOGIES INC | Industrials | 255.3K | $52.2M | 4.2% | +1.5% |
| AZZ AZZ INC | Industrials | 351.5K | $44.0M | 3.6% | -3.6% |
| MTRN MATERION CORP | Industrials | 293.1K | $42.4M | 3.4% | -8.3% |
| WCN WASTE CONNECTIONS INC | Utilities | 258.5K | $42.0M | 3.4% | +15.3% |
| LFUS LITTELFUSE INC | Industrials | 121.5K | $41.2M | 3.3% | +3.4% |
| NOVT NOVANTA INC | Technology | 320.0K | $37.8M | 3.1% | +5.3% |
| MLM MARTIN MARIETTA MATERIALS | Materials | 63.9K | $37.6M | 3.1% | +25.0% |
| ASTE ASTEC INDUSTRIES INC | Industrials | 672.2K | $36.2M | 2.9% | +8.1% |
| BV BRIGHTVIEW HOLDINGS INC | Consumer staples | 2.9M | $34.6M | 2.8% | +12.6% |
| BATRK ATLANTA BRAVES HOLDINGS IN-C | Services media | 806.0K | $34.4M | 2.8% | +8.6% |
| THRM GENTHERM INC | Industrials | 1.2M | $34.3M | 2.8% | +17.9% |
| BALL BALL CORP | Industrials | 560.0K | $33.1M | 2.7% | +23.8% |
| 8TG THERMON GROUP HOLDINGS INC | — | 646.7K | $32.6M | 2.6% | -16.2% |
| AWI ARMSTRONG WORLD INDUSTRIES | Other | 196.0K | $32.3M | 2.6% | +14.3% |
| ULS UL SOLUTIONS INC - CLASS A | Services media | 342.5K | $29.4M | 2.4% | +11.3% |
| CTS CTS CORP | Technology | 594.4K | $28.4M | 2.3% | +9.3% |
| CALX CALIX INC | Communications | 572.5K | $28.0M | 2.3% | +7.3% |
| POOL POOL CORP | Consumer discretionary | 135.0K | $27.3M | 2.2% | New |
| SMG SCOTTS MIRACLE-GRO CO | Other | 437.5K | $26.6M | 2.2% | +98.9% |
| LASR NLIGHT INC | Technology | 413.6K | $23.6M | 1.9% | -65.6% |
| CWST CASELLA WASTE SYSTEMS INC-A | Utilities | 281.5K | $22.3M | 1.8% | +43.5% |
| ICHR ICHOR HOLDINGS LTD | Technology | 469.2K | $21.9M | 1.8% | -2.8% |
| MANU MANCHESTER UNITED PLC-CL A | Services media | 1.2M | $20.4M | 1.7% | +9.9% |
| BCPC BALCHEM CORP | Materials | 114.8K | $19.5M | 1.6% | -1.0% |
| VPG VISHAY PRECISION GROUP | Technology | 401.6K | $17.4M | 1.4% | +5.2% |
| KN KNOWLES CORP | Industrials | 664.5K | $17.1M | 1.4% | +1.8% |
| CPW CHECK POINT SOFTWARE TECH | — | 109.5K | $15.6M | 1.3% | -11.0% |
| PANW PALO ALTO NETWORKS INC | Technology | 91.0K | $14.6M | 1.2% | New |
| RSKD RISKIFIED LTD-A | Services media | 3.4M | $13.3M | 1.1% | +9.7% |
| FWONK LIBERTY MEDIA CORP-FORMULA-C | Communications | 123.5K | $10.5M | 0.9% | New |
| MTRX MATRIX SERVICE CO | Industrials | 905.0K | $10.4M | 0.8% | +6.1% |
| GLDD GREAT LAKES DREDGE & DOCK CO | — | 610.0K | $10.4M | 0.8% | -83.5% |
| WH WYNDHAM HOTELS & RESORTS INC | Services media | 121.0K | $9.8M | 0.8% | New |
| DNOW DNOW INC | Industrials | 730.9K | $8.7M | 0.7% | -62.3% |
| OEC ORION SA | Other | 1.3M | $8.5M | 0.7% | -45.9% |
| FWONA LIBERTY MEDIA CORP-FORMULA-A | Communications | 60.0K | $4.7M | 0.4% | New |
| APLD APPLIED DIGITAL CORP | Technology | 150.0K | $3.6M | 0.3% | -40.0% |
| VRNS VARONIS SYSTEMS INC | Technology | 140.0K | $3.0M | 0.2% | -65.5% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 47 | $1.26B | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 44 | $1.13B | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 46 | $1.12B | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 42 | $1.02B | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 42 | $857.5M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 42 | $900.4M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 43 | $878.3M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 41 | $831.6M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 41 | $944.0M | canonical | SEC ↗ |
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