STONE RUN CAPITAL, LLC
CIK 1512746 · View on SEC EDGAR ↗
- Portfolio value
- $253.9M
- Positions
- 71
- As of
- Sept. 30, 2025 Data as of Q3 2025
#5,688 of 9,443 by 13F value · top 60.2%
Portfolio value QoQ: +1.5% 13F does not disclose cash
- Top 10 holdings weight
- 38.34%
- Top 25 holdings weight
- 73.09%
- Positions above 1%
- 37
- Effective number of positions
- 38.1
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q3 2025: 2.74% Est. buys $6,909,858 · sells $13,340,517
Median holding: 4.0 quarters Tracked Q4 2024–Q3 2025 · 92.2% still held
- New positions
- 5
- Increased
- 13
- Decreased
- 31
- Closed
- 2
On this page
- Performance vs S&P How this manager's 13F portfolio performed against the S&P 500.
- Sector breakdown How the portfolio splits across market sectors.
- Portfolio Every stock this institution reports holding, from its latest 13F.
- High-conviction bets The holdings this manager is most concentrated in.
- Biggest new bets Brand-new positions opened in the latest quarter.
- Top moves The biggest position increases and decreases this quarter.
- Exited positions Positions the manager fully sold out of last quarter.
Performance vs S&P 500
Annualized: +8.3% · S&P 500: +18.3%
Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.
Priceable coverage: 93.6% · Options excluded: 0.0%
Sector breakdown
Industrials
40.2%
Health Care
17.7%
Technology
16.5%
Materials
8.3%
Financial Services
4.9%
Communications
3.8%
Communication Services
1.7%
Consumer Staples
1.6%
Utilities
1.0%
Energy
0.2%
Consumer Discretionary
0.1%
Other/Unmapped
4.1%
Full portfolio 71 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| APH Amphenol Corporation Common Stock | $11,795,850 | 4.65% | 95,320 | $2,136,125 | Down ×3 | ||
| HEI Heico Corporation Common Stock | $11,449,134 | 4.51% | 35,466 | $-188,634 | Down ×1 | ||
| BRKB | $10,343,875 | 4.07% | 20,575 | $349,157 | |||
| ADSK Autodesk, Inc. - Common Stock | $10,017,723 | 3.95% | 31,535 | $-69,615 | Down ×2 | ||
| ANET Arista Networks, Inc. Common Stock | $9,675,144 | 3.81% | 66,400 | $2,861,298 | Down ×1 | ||
| MLM Martin Marietta Materials, Inc. Common Stock | $9,619,964 | 3.79% | 15,263 | $947,494 | Down ×2 | ||
| WTS Watts Water Technologies, Inc. Class A Common Stock | $8,936,960 | 3.52% | 32,000 | $810,296 | Down ×3 | ||
| SPGI S&P Global Inc. Common Stock | $8,790,469 | 3.46% | 18,061 | $-1,289,734 | Down ×1 | ||
| LIN Linde plc - Ordinary Shares | $8,381,375 | 3.30% | 17,645 | $98,002 | Down ×1 | ||
| LII Lennox International, Inc. Common Stock | $8,318,892 | 3.28% | 15,715 | $-569,194 | Up ×2 | ||
| ROP Roper Technologies, Inc. - Common Stock | $7,989,290 | 3.15% | 16,021 | $-1,346,831 | Down ×3 | ||
| STE STERIS plc (Ireland) Ordinary Shares | $7,009,975 | 2.76% | 28,330 | $240,575 | Up ×1 | ||
| GLW Corning Incorporated Common Stock | $6,949,899 | 2.74% | 84,724 | $2,491,821 | Down ×1 | ||
| SHW Sherwin-Williams Company (The) Common Stock | $6,402,347 | 2.52% | 18,490 | $33,019 | Down ×1 | ||
| TMO Thermo Fisher Scientific Inc Common Stock | $6,311,080 | 2.49% | 13,012 | $1,659,643 | Up ×1 | ||
| ECL Ecolab Inc. Common Stock | $5,931,808 | 2.34% | 21,660 | $95,738 | |||
| EMR Emerson Electric Company Common Stock | $5,758,256 | 2.27% | 43,896 | $-114,246 | Down ×3 | ||
| WAB Westinghouse Air Brake Technologies Corporation Common Stock | $5,680,296 | 2.24% | 28,335 | $-460,936 | Down ×1 | ||
| GEV GE Vernova Inc. Common Stock | $5,506,952 | 2.17% | 8,956 | $627,749 | Down ×2 | ||
| EW Edwards Lifesciences Corporation Common Stock | $5,475,008 | 2.16% | 70,400 | $-34,886 | Down ×3 | ||
| PAYX Paychex, Inc. - Common Stock | $5,432,089 | 2.14% | 42,853 | $-786,723 | Up ×3 | ||
| XYL Xylem Inc. Common Stock New | $5,095,387 | 2.01% | 34,545 | $597,540 | Down ×1 | ||
| DHR Danaher Corporation Common Stock | $5,033,432 | 1.98% | 25,388 | $23,255 | Up ×2 | ||
| TRMB Trimble Inc. - Common Stock | $4,853,276 | 1.91% | 59,440 | $318,030 | Down ×1 | ||
| LH Labcorp Holdings Inc. Common Stock | $4,795,337 | 1.89% | 16,705 | $55,719 | Down ×1 | ||
| TECH Bio-Techne Corp - Common Stock | $4,349,988 | 1.71% | 78,195 | $324,540 | Down ×1 | ||
| GOOGL Alphabet Inc. - Class A Common Stock | $4,217,785 | 1.66% | 17,350 | $1,512,655 | Up ×2 | ||
| NDSN Nordson Corporation - Common Stock | $4,156,515 | 1.64% | 18,315 | $-233,504 | Down ×1 | ||
| IT Gartner, Inc. Common Stock | $4,101,298 | 1.62% | 15,602 | $-2,223,532 | Down ×1 | ||
| BDX Becton, Dickinson and Company Common Stock | $3,956,562 | 1.56% | 21,139 | $-244,208 | Down ×1 | ||
| MKC McCormick & Company, Incorporated Common Stock | $3,951,035 | 1.56% | 59,050 | $-579,210 | Down ×1 | ||
| SNPS Synopsys, Inc. - Common Stock | $3,699,438 | 1.46% | 7,498 | $3,058,588 | Up ×1 | ||
| FISV Fiserv, Inc. - Common Stock | $3,690,621 | 1.45% | 28,625 | $-1,658,399 | Down ×1 | ||
| ENTG Entegris, Inc. - Common Stock | $3,682,682 | 1.45% | 39,830 | $1,006,715 | Up ×2 | ||
| RVTY Revvity, Inc. Common Stock | $3,443,155 | 1.36% | 39,283 | $-370,805 | Down ×3 | ||
| TER Teradyne, Inc. - Common Stock | $2,814,738 | 1.11% | 20,450 | $962,386 | Down ×1 | ||
| PANW Palo Alto Networks, Inc. - Common Stock | $2,748,870 | 1.08% | 13,500 | $513,178 | Up ×1 | ||
| VLTO Veralto Corp Common Stock | $2,220,076 | 0.87% | 20,824 | $-619,066 | Down ×3 | ||
| PTC PTC Inc. - Common Stock | $1,873,875 | 0.74% | 9,230 | $326,262 | Up ×1 | ||
| EPAM EPAM Systems, Inc. Common Stock | $1,830,591 | 0.72% | 12,140 | $-432,705 | Down ×2 | ||
| AAPL Apple Inc. - Common Stock | $1,777,317 | 0.70% | 6,980 | $345,230 | |||
| AXGN Axogen, Inc. - Common Stock | $1,686,344 | 0.66% | 94,526 | $687,862 | Up ×3 | ||
| AOS A.O. Smith Corporation Common Stock | $1,637,043 | 0.64% | 22,300 | $-107,119 | Down ×2 | ||
| BIP Brookfield Infrastructure Partners LP Limited Partnership Units | $1,609,312 | 0.63% | 48,930 | $-29,536 | Up ×3 | ||
| FTNT Fortinet, Inc. - Common Stock | $1,315,852 | 0.52% | 15,650 | $-359,810 | Down ×1 | ||
| ISRG Intuitive Surgical, Inc. - Common Stock | $1,118,075 | 0.44% | 2,500 | $-240,450 | |||
| ABBV AbbVie Inc. Common Stock | $856,698 | 0.34% | 3,700 | $169,904 | |||
| MMM 3M Company Common Stock | $650,049 | 0.26% | 4,189 | $12,316 | |||
| RTX RTX Corporation Common Stock | $597,870 | 0.24% | 3,573 | $76,141 | |||
| ITW Illinois Tool Works Inc. Common Stock | $508,482 | 0.20% | 1,950 | $26,345 | |||
| ABT Abbott Laboratories Common Stock | $442,002 | 0.17% | 3,300 | $-6,831 | |||
| FTV Fortive Corporation Common Stock | $411,712 | 0.16% | 8,404 | $-26,389 | |||
| WWD Woodward, Inc. - Common Stock | $379,065 | 0.15% | 1,500 | $11,430 | |||
| OKE ONEOK, Inc. Common Stock | $332,013 | 0.13% | 4,550 | $-39,403 | |||
| JNJ Johnson & Johnson Common Stock | $309,651 | 0.12% | 1,670 | $54,559 | |||
| RAL Ralliant Corporation Common Stock | $306,810 | 0.12% | 7,016 | Up ×1 | |||
| CAT Caterpillar, Inc. Common Stock | $286,290 | 0.11% | 600 | $53,364 | |||
| MIDD The Middleby Corporation - Common Stock | $277,159 | 0.11% | 2,085 | $-2,049,881 | Down ×3 | ||
| MCD McDonald's Corporation Common Stock | $273,501 | 0.11% | 900 | $10,548 | |||
| CNI Canadian National Railway Company Common Stock | $273,470 | 0.11% | 2,900 | $-28,246 | |||
| BWXT BWX Technologies, Inc. Common Stock | $263,280 | 0.10% | 1,428 | $57,562 | |||
| APD Air Products and Chemicals, Inc. Common Stock | $259,084 | 0.10% | 950 | $-8,873 | |||
| CDW CDW Corporation - Common Stock | $258,034 | 0.10% | 1,620 | $21,402 | Up ×1 | ||
| AMGN Amgen Inc. - Common Stock | $253,980 | 0.10% | 900 | $2,691 | |||
| CP Canadian Pacific Kansas City Limited Common Shares | $227,939 | 0.09% | 3,060 | $-14,627 | |||
| SRE DBA Sempra Common Stock | $224,950 | 0.09% | 2,500 | ||||
| BIPC Brookfield Infrastructure Corporation Brookfield Infrastructure Corporation | $213,471 | 0.08% | 5,191 | $-2,462 | |||
| GE GE Aerospace Common Stock | $212,935 | 0.08% | 708 | Up ×1 | |||
| CEG Constellation Energy Corporation - Common Stock When-Issued | $209,289 | 0.08% | 636 | $4,014 | |||
| SHEL Shell PLC American Depositary Shares (each representing two (2) Ordinary Shares) | $200,999 | 0.08% | 2,810 | ||||
| DUK Duke Energy Corporation (Holding Company) Common Stock | $200,599 | 0.08% | 1,621 | ||||
| No matches | |||||||
Conviction holdings
Positions increased for 3+ consecutive quarters.
Share counts are as reported in 13F filings (not split-adjusted)
Biggest new bets
New positions opened this quarter, largest first.
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| ANET | Trimmed | -200 | +$2.9M |
| GLW | Trimmed | -46 | +$2.5M |
| IT | Trimmed | -45 | -$2.2M |
| APH | Trimmed | -2K | +$2.1M |
| TMO | Bought more | +2K | +$1.7M |
| FISV | Trimmed | -2K | -$1.7M |
| GOOGL | Bought more | +2K | +$1.5M |
| ROP | Trimmed | -449 | -$1.3M |
| SPGI | Trimmed | -1K | -$1.3M |
| ENTG | Bought more | +7K | +$1.0M |
2 positions hidden (data completeness check)
Exited positions
Includes corporate events (mergers, delistings) — not all exits are sells
Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.
| Security | Quarter | Shares before | Value before | Price since exit |
|---|---|---|---|---|
| ANSS | Sept. 30, 2025 | 16,040 | $5,633,569 | No longer tracked |
| IFF | March 31, 2025 | 26,996 | $2,282,535 | 7.1% |
| ADBE | June 30, 2025 | 3,425 | $1,313,590 | -29.2% |
| CAT | March 31, 2025 | 700 | $253,932 | 145.2% |
| DUK | June 30, 2025 | 2,071 | $252,600 | 5.1% |
| DAY | March 31, 2025 | 3,145 | $228,453 | No longer tracked |
| SRE | March 31, 2025 | 2,578 | $226,142 | 21.5% |
| CARR | Sept. 30, 2025 | 3,000 | $219,570 | 1.5% |
| BIPC | March 31, 2025 | 5,189 | $207,619 | 11.4% |
| SHEL | June 30, 2025 | 2,810 | $205,917 | 34.4% |
| CARR | March 31, 2025 | 3,000 | $204,780 | -4.4% |
| CLVT | June 30, 2025 | 12,500 | $49,125 | -53.0% |