1y return+58.9%S&P 500 +20.9%
3y return+101.3%S&P 500 +68.5%
5y return+95.2%S&P 500 +74.5%
10y return+545.0%S&P 500 +256.5%
These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.
$100 invested in its stock picks
Since June 30, 2016: $645 against $357 in the S&P 500.2
Harvey Partners, LLCS&P 500 (SPY)
Top holdings
At the end of June 30, 2026. Change is in shares since the quarter before.2
| Stock | Value | Share of portfolio | Change |
|---|---|---|---|
| NPOEnpro Inc | $78.2M | 5.4% | −18.1% |
| MTRNMaterion Corp | $65.4M | 4.5% | −24.9% |
| MKSIMks Inc. | $62.7M | 4.4% | −42.0% |
| NGVTIngevity Corp | $54.8M | 3.8% | −1.2% |
| ADEAAdeia Inc | $53.4M | 3.7% | −41.1% |
| LFUSLittelfuse Inc | $51.2M | 3.6% | −7.4% |
| MLMMartin Marietta Matls Inc | $50.2M | 3.5% | +36.2% |
| AZZAzz Inc | $50.1M | 3.5% | −8.1% |
| WCNWaste Connections Inc | $47.9M | 3.3% | +11.1% |
| NOVTNovanta Inc | $47.7M | 3.3% | −8.1% |
| BWXTBwx Technologies Inc | $47.3M | 3.3% | −4.8% |
| THRMGentherm Inc | $45.2M | 3.1% | +7.5% |
| BVBrightview Hldgs Inc | $43.6M | 3.0% | +4.8% |
| ASTEAstec Inds Inc | $41.2M | 2.9% | |
| BALLBall Corp | $40.8M | 2.8% | +16.7% |
| BATRKAtlanta Braves Hldgs Inc | $39.3M | 2.7% | −6.1% |
| POOLPool Corp | $37.4M | 2.6% | +28.9% |
| SMGScotts Miracle-gro Co | $37.0M | 2.6% | +24.1% |
| CTSCts Corp | $35.5M | 2.5% | −8.3% |
| AWIArmstrong World Inds Inc New | $32.9M | 2.3% | +4.6% |
| ULSUl Solutions Inc | $32.7M | 2.3% | −6.4% |
| CWSTCasella Waste Sys Inc | $30.1M | 2.1% | +10.2% |
| CECOCeco Environmental Corp | $28.2M | 2.0% | New |
| RTORentokil Initial PLC | $28.2M | 2.0% | |
| VPGVishay Precision Group Inc | $26.6M | 1.8% | −55.8% |
Best picks still held
How each current holding has done since the quarter it first appeared in its filings (up to six years back).
| Stock | Held since | Return since | Now worth |
|---|---|---|---|
| LASRNlight Inc | March 31, 2023 | +583.9% | $21.1M |
| NPOEnpro Inc | September 30, 2020 | +568.2% | $78.2M |
| Ichor HoldingsCUSIP G4740B105 | September 30, 2025 | +540.9% | $23.1M |
| MKSIMks Inc. | June 30, 2023 | +311.5% | $62.7M |
| BWXTBwx Technologies Inc | December 31, 2021 | +306.6% | $47.3M |
| ADEAAdeia Inc | December 31, 2022 | +247.4% | $53.4M |
| AZZAzz Inc | December 31, 2020 | +226.8% | $50.1M |
| CTSCts Corp | September 30, 2020 | +195.9% | $35.5M |
| NOKNokia Corp | March 31, 2025 | +152.0% | $19.3M |
| MTRNMaterion Corp | September 30, 2025 | +146.2% | $65.4M |
Sold off last quarter
- Thermon Group Hldgs IncCUSIP 88362T103 was $32.6M
- GLDDGreat Lakes Dredge & Dock Co was $10.4M
- DNOWDnow Inc was $8.7M
- VRNSVaronis Sys Inc was $3.0M
Quarter by quarter
| Quarter | Its picks | S&P 500 |
|---|---|---|
| June 30, 2026 | +28.6% | +14.8% |
| March 31, 2026 | +12.3% | −4.6% |
| December 31, 2025 | +1.8% | +2.4% |
| September 30, 2025 | +8.2% | +7.8% |
| June 30, 2025 | +17.5% | +10.5% |
| March 31, 2025 | −6.1% | −4.6% |
| December 31, 2024 | +1.0% | +2.1% |
| September 30, 2024 | +3.9% | +5.4% |
| June 30, 2024 | −5.2% | +4.0% |
| March 31, 2024 | +7.4% | +10.0% |
| December 31, 2023 | +11.8% | +11.2% |
| September 30, 2023 | −3.9% | −3.6% |
| June 30, 2023 | +2.8% | +8.3% |
| March 31, 2023 | +5.5% | +7.0% |
| December 31, 2022 | +16.5% | +7.1% |
| September 30, 2022 | −3.7% | −5.3% |
| June 30, 2022 | −17.3% | −16.5% |
| March 31, 2022 | −5.4% | −4.9% |
| December 31, 2021 | +3.0% | +10.7% |
| September 30, 2021 | −1.2% | +0.3% |
Sources
Every number on this page points here. Each one links to the public record.
- 1SEC EDGAR: Harvey Partners, LLC Form 13F filingshttps://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1406484&type=13F-HR&dateb=&owner=include&count=40CIK 1406484
- 2SEC: 13F for the quarter ended June 30, 2026https://www.sec.gov/Archives/edgar/data/1406484/000121465926010396/Filed August 14, 2026 · accession 0001214659-26-010396