Stone RUN Capital
NEW YORK, NYfiles as STONE RUN CAPITAL, LLC
$254m in 71 US stocks at the end of 30 September 2025. The top 10 are 38.3% of the money. It changed about 8.7% of the portfolio this quarter.
Value
$254m
Stocks
71
Top 10 share
38.3%
Turnover
8.7%
What changed this quarter
New
Bought for the first time this quarter.
- RalliantRAL0.1% of the fund
- SempraSRE<0.1% of the fund
- General ElectricGE<0.1% of the fund
- ShellSHEL<0.1% of the fund
- Duke EnergyDUK<0.1% of the fund
Added
Bought more of a stock they already held.
- Thermo Fisher ScientificTMO2.5% of the fund+13%
- AlphabetGOOGL1.7% of the fund+13%
- SynopsysSNPS1.5% of the fund+500%
- EntegrisENTG1.5% of the fund+20%
- Palo Alto NetworksPANW1.1% of the fund+24%
- PTCPTC0.7% of the fund+3%
- AxogenAXGN0.7% of the fund+3%
- CDWCDW0.1% of the fund+22%
Cut
Sold some of their stake.
- AmphenolAPH4.6% of the fund-3%
- AutodeskADSK3.9% of the fund-3%
- Martin Marietta MaterialsMLM3.8% of the fund-3%
- Watts Water TechnologiesWTS3.5% of the fund-3%
- S&P GlobalSPGI3.5% of the fund-6%
- Roper TechnologiesROP3.1% of the fund-3%
- Westinghouse Air Brake TechnologiesWAB2.2% of the fund-3%
- GE VernovaGEV2.2% of the fund-3%
- Labcorp HoldingsLH1.9% of the fund-7%
- NordsonNDSN1.6% of the fund-11%
- Becton DickinsonBDX1.6% of the fund-13%
- FiservFISV1.5% of the fund-8%
- VeraltoVLTO0.9% of the fund-26%
- EPAM SystemsEPAM0.7% of the fund-5%
- Smith A OAOS0.6% of the fund-16%
- MiddlebyMIDD0.1% of the fund-87%
Sold out
Sold their entire stake.
- Ansys-100%
- Carrier GlobalCARR-100%
Holdings
- Brookfield Infrastructure PABIP
- Share
- 0.6%
- Value
- $2m
- Shares
- 48,930
Held
- Canadian National RailwayCNI
- Share
- 0.1%
- Value
- $273,470
- Shares
- 2,900
Held
- ShellSHEL
- Share
- <0.1%
- Value
- $200,999
- Shares
- 2,810
New
| Company | Share of fund | Value | Shares | Change |
|---|---|---|---|---|
| AmphenolAPH | 4.6% | $12m | 95,320 | -3% |
| HeicoHEI | 4.5% | $11m | 35,466 | Held |
| Berkshire HathawayBRK-B | 4.1% | $10m | 20,575 | Held |
| AutodeskADSK | 3.9% | $10m | 31,535 | -3% |
| Arista NetworksANET | 3.8% | $10m | 66,400 | Held |
| Martin Marietta MaterialsMLM | 3.8% | $10m | 15,263 | -3% |
| Watts Water TechnologiesWTS | 3.5% | $9m | 32,000 | -3% |
| S&P GlobalSPGI | 3.5% | $9m | 18,061 | -6% |
| LindeLIN | 3.3% | $8m | 17,645 | Held |
| Lennox InternationalLII | 3.3% | $8m | 15,715 | Held |
| Roper TechnologiesROP | 3.1% | $8m | 16,021 | -3% |
| SterisSTE | 2.8% | $7m | 28,330 | Held |
| CorningGLW | 2.7% | $7m | 84,724 | Held |
| Sherwin-WilliamsSHW | 2.5% | $6m | 18,490 | Held |
| Thermo Fisher ScientificTMO | 2.5% | $6m | 13,012 | +13% |
| EcolabECL | 2.3% | $6m | 21,660 | Held |
| Emerson ElectricEMR | 2.3% | $6m | 43,896 | Held |
| Westinghouse Air Brake TechnologiesWAB | 2.2% | $6m | 28,335 | -3% |
| GE VernovaGEV | 2.2% | $6m | 8,956 | -3% |
| Edwards LifesciencesEW | 2.2% | $5m | 70,400 | Held |
| PaychexPAYX | 2.1% | $5m | 42,853 | Held |
| XylemXYL | 2.0% | $5m | 34,545 | Held |
| DanaherDHR | 2.0% | $5m | 25,388 | Held |
| TrimbleTRMB | 1.9% | $5m | 59,440 | Held |
| Labcorp HoldingsLH | 1.9% | $5m | 16,705 | -7% |
| Bio-TechneTECH | 1.7% | $4m | 78,195 | Held |
| AlphabetGOOGL | 1.7% | $4m | 17,350 | +13% |
| NordsonNDSN | 1.6% | $4m | 18,315 | -11% |
| GartnerIT | 1.6% | $4m | 15,602 | Held |
| Becton DickinsonBDX | 1.6% | $4m | 21,139 | -13% |
| McCormickMKC | 1.6% | $4m | 59,050 | Held |
| SynopsysSNPS | 1.5% | $4m | 7,498 | +500% |
| FiservFISV | 1.5% | $4m | 28,625 | -8% |
| EntegrisENTG | 1.5% | $4m | 39,830 | +20% |
| RevvityRVTY | 1.4% | $3m | 39,283 | Held |
| TeradyneTER | 1.1% | $3m | 20,450 | Held |
| Palo Alto NetworksPANW | 1.1% | $3m | 13,500 | +24% |
| VeraltoVLTO | 0.9% | $2m | 20,824 | -26% |
| PTCPTC | 0.7% | $2m | 9,230 | +3% |
| EPAM SystemsEPAM | 0.7% | $2m | 12,140 | -5% |
| AppleAAPL | 0.7% | $2m | 6,980 | Held |
| AxogenAXGN | 0.7% | $2m | 94,526 | +3% |
| Smith A OAOS | 0.6% | $2m | 22,300 | -16% |
| Brookfield Infrastructure PABIP | 0.6% | $2m | 48,930 | Held |
| FortinetFTNT | 0.5% | $1m | 15,650 | Held |
| Intuitive SurgicalISRG | 0.4% | $1m | 2,500 | Held |
| AbbVieABBV | 0.3% | $856,698 | 3,700 | Held |
| 3MMMM | 0.3% | $650,049 | 4,189 | Held |
| RTXRTX | 0.2% | $597,870 | 3,573 | Held |
| Illinois Tool WorksITW | 0.2% | $508,482 | 1,950 | Held |
| Abbott LaboratoriesABT | 0.2% | $442,002 | 3,300 | Held |
| FortiveFTV | 0.2% | $411,712 | 8,404 | Held |
| WoodwardWWD | 0.1% | $379,065 | 1,500 | Held |
| OneokOKE | 0.1% | $332,013 | 4,550 | Held |
| Johnson & JohnsonJNJ | 0.1% | $309,651 | 1,670 | Held |
| RalliantRAL | 0.1% | $306,810 | 7,016 | New |
| CaterpillarCAT | 0.1% | $286,290 | 600 | Held |
| MiddlebyMIDD | 0.1% | $277,159 | 2,085 | -87% |
| McDonald'sMCD | 0.1% | $273,501 | 900 | Held |
| Canadian National RailwayCNI | 0.1% | $273,470 | 2,900 | Held |
| BWX TechnologiesBWXT | 0.1% | $263,280 | 1,428 | Held |
| Air Products & ChemicalsAPD | 0.1% | $259,084 | 950 | Held |
| CDWCDW | 0.1% | $258,034 | 1,620 | +22% |
| AmgenAMGN | 0.1% | $253,980 | 900 | Held |
| Canadian Pacific Kansas CityCP | <0.1% | $227,939 | 3,060 | Held |
| SempraSRE | <0.1% | $224,950 | 2,500 | New |
| Brookfield InfrastructureBIPC | <0.1% | $213,471 | 5,191 | Held |
| General ElectricGE | <0.1% | $212,935 | 708 | New |
| Constellation EnergyCEG | <0.1% | $209,289 | 636 | Held |
| ShellSHEL | <0.1% | $200,999 | 2,810 | New |
| Duke EnergyDUK | <0.1% | $200,599 | 1,621 | New |
Over time and by industry
Value over time
Sep '25
Value is up 1.5% since 30 June 2025.
Where the money is
Technology29.7%
Industrials27.0%
Health care17.7%
Materials12.1%
Financial services9.0%
Media & telecom1.7%
Everyday goods1.6%
Utilities0.3%
Energy0.1%
Retail & consumer0.1%
Other0.7%
From the fund's 13F filings. They list US stocks and options only, 45 days after each quarter, and leave out cash, bonds, shorts and foreign shares.