STONE RUN CAPITAL, LLC

CIK

1512746

Location

NEW YORK, NY

Portfolio Value

Small $252,544,614

Diversification

Diversified

Filing Date

Global Rank

#3,715 / 7,986 ▼ 103 · as of Sep 2025

Top Industry

Specialty Industrial Machinery 12.8%

3Y Alpha vs SPY

-16.7%

Period ended 9 months ago

Filed Nov 14, 2025 · 8mo

23 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+10.8%

SPY

+76.5%

Annualised alpha

-17.4%

Max drawdown

−32.5%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

71 positions · as of Sep 30, 2025 · Δ vs Jun 30, 2025

Top Position

4.7%

−0.1 pts

Top 5

21.1%

+0.1 pts

Top 10

38.4%

−0.4 pts

HHI

263

Diversified−3

Portfolio Trend

23 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2025

Sector	% Portfolio	Value	Positions
Technology	32.3%	$81,534,670	19
Industrials	24.7%	$62,436,273	20
Healthcare	17.5%	$44,195,237	14
Basic Materials	12.1%	$30,594,576	5
Financial Services	7.4%	$18,660,308	2
Communication Services	1.7%	$4,217,785	1
Consumer Defensive	1.6%	$3,951,035	1
Unclassified	1.5%	$3,690,621	1
Utilities	1.0%	$2,457,596	5
Energy	0.2%	$533,012	2
Consumer Cyclical	0.1%	$273,501	1

Last Quarter's Activity

Export CSV

Sep 30, 2025 vs Jun 30, 2025

Added To

Positions the filer increased

13 positions

Ticker	Company	Δ Shares	Shares	Value
ENTG	Entegris Inc	+6,650	39,830	$3,682,681
SNPS	Synopsys Inc	+6,248	7,498	$3,699,438
PANW	Palo Alto Networks Inc	+2,575	13,500	$2,748,870
AXGN	Axogen, Inc.	+2,500	94,526	$1,686,343
GOOGL	Alphabet Inc.	+2,000	17,350	$4,217,785
TMO	Thermo Fisher Scientific Inc.	+1,540	13,012	$6,311,080
CDW	CDW Corp	+295	1,620	$258,033
PTC	Ptc Inc.	+250	9,230	$1,873,874
LII	Lennox International Inc	+210	15,715	$8,318,892
STE	STERIS plc	+150	28,330	$7,009,975
PAYX	Paychex Inc	+100	42,853	$5,432,046
DHR	Danaher Corp /De/	+25	25,388	$5,033,424
BIPH	Brookfield Infrastructure Partners L.P.	+9	48,930	$1,609,307
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
MIDD	MIDDLEBY Corp	−14,075	2,085	$277,159
VLTO	Veralto Corp	−7,300	20,824	$2,220,046
AOS	Smith A O Corp	−4,300	22,300	$1,637,043
BDX	Becton Dickinson & Co	−3,249	21,139	$3,110,523
APH	Amphenol Corp /De/	−2,500	95,320	$11,795,850
FISV	Fiserv Inc	−2,400	28,625	$3,690,621
NDSN	Nordson Corp	−2,164	18,315	$4,156,589
LH	Labcorp Holdings Inc.	−1,350	16,705	$4,795,337
SPGI	S&P Global Inc.	−1,056	18,061	$8,316,433
ADSK	Autodesk, Inc.	−1,050	31,535	$10,017,723
WTS	Watts Water Technologies Inc	−1,050	32,000	$8,936,960
WAB	Westinghouse Air Brake Technologies Corp	−1,000	28,335	$5,680,317
MKC	Mccormick & Co Inc	−700	59,050	$3,951,035
EPAM	EPAM Systems, Inc.	−660	12,140	$1,830,590
MLM	Martin Marietta Materials Inc	−535	15,263	$9,619,963
ROP	Roper Technologies Inc	−449	16,021	$7,989,512
GEV	GE Vernova Inc.	−265	8,956	$5,507,044
TRMB	Trimble Inc.	−250	59,440	$4,853,276
XYL	Xylem Inc.	−225	34,545	$5,095,387
ANET	Arista Networks, Inc.	−200	66,400	$9,675,144
FTNT	Fortinet, Inc.	−200	15,650	$1,315,852
RVTY	Revvity, Inc.	−150	39,283	$3,443,154
TER	Teradyne, Inc	−150	20,450	$2,814,738
EMR	Emerson Electric Co	−149	43,896	$5,758,277
SHW	Sherwin Williams Co	−60	18,490	$6,402,347
No positions match the current search.

New Positions

Positions the filer opened this quarter

5 positions

Ticker	Company	Shares	Value
RAL	Ralliant Corp	7,016	$306,809
SRE	Sempra	2,500	$224,950
GE	General Electric Co	708	$212,980
SHEL	Shell plc	2,810	$200,999
DUK	Duke Energy CORP	1,621	$200,598
No positions match the current search.

Sold Out

Positions the filer fully exited

1 positions

Ticker	Company	Shares	Value	Open
CARR	CARRIER GLOBAL Corp	3,000	$219,570
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

71 positions · $252,544,614 total · as of Sep 30, 2025

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Technology Utilities

Showing 1–50 of 71 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
APH	Amphenol Corp /De/ Technology	Reduced	95,320	-2,500	$11,795,850	+22.1%	4.67%
HEI	Heico Corp Industrials	Reduced	35,466	-15	$11,449,134	−1.6%	4.53%
BRK-B	Berkshire Hathaway Inc Financial Services	Held	20,575	0	$10,343,875	+3.5%	4.10%
ADSK	Autodesk, Inc. Technology	Reduced	31,535	-1,050	$10,017,723	−0.7%	3.97%
ANET	Arista Networks, Inc. Technology	Reduced	66,400	-200	$9,675,144	+42.0%	3.83%
MLM	Martin Marietta Materials Inc Basic Materials	Reduced	15,263	-535	$9,619,963	+10.9%	3.81%
WTS	Watts Water Technologies Inc Industrials	Reduced	32,000	-1,050	$8,936,960	+10.0%	3.54%
LIN	Linde PLC Basic Materials	Reduced	17,645	-10	$8,381,375	+1.2%	3.32%
LII	Lennox International Inc Industrials	Added	15,715	+210	$8,318,892	−6.4%	3.29%
SPGI	S&P Global Inc. Financial Services	Reduced	18,061	-1,056	$8,316,433	−12.8%	3.29%
ROP	Roper Technologies Inc Technology	Reduced	16,021	-449	$7,989,512	−14.4%	3.16%
STE	STERIS plc Healthcare	Added	28,330	+150	$7,009,975	+3.6%	2.78%
GLW	Corning Inc /Ny Technology	Reduced	84,724	-46	$6,949,909	+55.9%	2.75%
SHW	Sherwin Williams Co Basic Materials	Reduced	18,490	-60	$6,402,347	+0.5%	2.54%
TMO	Thermo Fisher Scientific Inc. Healthcare	Added	13,012	+1,540	$6,311,080	+35.7%	2.50%
ECL	Ecolab Inc. Basic Materials	Held	21,660	0	$5,931,807	+1.6%	2.35%
EMR	Emerson Electric Co Industrials	Reduced	43,896	-149	$5,758,277	−1.9%	2.28%
WAB	Westinghouse Air Brake Technologies Corp Industrials	Reduced	28,335	-1,000	$5,680,317	−7.5%	2.25%
GEV	GE Vernova Inc. Industrials	Reduced	8,956	-265	$5,507,044	+12.9%	2.18%
EW	Edwards Lifesciences Corp Healthcare	Reduced	70,400	-50	$5,475,008	−0.6%	2.17%
PAYX	Paychex Inc Technology	Added	42,853	+100	$5,432,046	−12.7%	2.15%
XYL	Xylem Inc. Industrials	Reduced	34,545	-225	$5,095,387	+13.3%	2.02%
DHR	Danaher Corp /De/ Healthcare	Added	25,388	+25	$5,033,424	+0.5%	1.99%
TRMB	Trimble Inc. Technology	Reduced	59,440	-250	$4,853,276	+7.0%	1.92%
LH	Labcorp Holdings Inc. Healthcare	Reduced	16,705	-1,350	$4,795,337	+1.2%	1.90%
TECH	BIO-TECHNE Corp Healthcare	Reduced	78,195	-45	$4,349,987	+8.1%	1.72%
GOOGL	Alphabet Inc. Communication Services	Added	17,350	+2,000	$4,217,785	+55.9%	1.67%
NDSN	Nordson Corp Industrials	Reduced	18,315	-2,164	$4,156,589	−5.3%	1.65%
IT	Gartner Inc Technology	Reduced	15,602	-45	$4,101,297	−35.2%	1.62%
MKC	Mccormick & Co Inc Consumer Defensive	Reduced	59,050	-700	$3,951,035	−12.8%	1.56%
SNPS	Synopsys Inc Technology	Added	7,498	+6,248	$3,699,438	+477.3%	1.46%
FISV	Fiserv Inc	Reduced	28,625	-2,400	$3,690,621	−31.0%	1.46%
ENTG	Entegris Inc Technology	Added	39,830	+6,650	$3,682,681	+37.6%	1.46%
RVTY	Revvity, Inc. Healthcare	Reduced	39,283	-150	$3,443,154	−9.7%	1.36%
BDX	Becton Dickinson & Co Healthcare	Reduced	21,139	-3,249	$3,110,523	−5.8%	1.23%
TER	Teradyne, Inc Technology	Reduced	20,450	-150	$2,814,738	+52.0%	1.11%
PANW	Palo Alto Networks Inc Technology	Added	13,500	+2,575	$2,748,870	+23.0%	1.09%
VLTO	Veralto Corp Industrials	Reduced	20,824	-7,300	$2,220,046	−21.8%	0.88%
PTC	Ptc Inc. Technology	Added	9,230	+250	$1,873,874	+21.1%	0.74%
EPAM	EPAM Systems, Inc. Technology	Reduced	12,140	-660	$1,830,590	−19.1%	0.72%
AAPL	Apple Inc. Technology	Held	6,980	0	$1,777,317	+24.1%	0.70%
AXGN	Axogen, Inc. Healthcare	Added	94,526	+2,500	$1,686,343	+68.9%	0.67%
AOS	Smith A O Corp Industrials	Reduced	22,300	-4,300	$1,637,043	−6.1%	0.65%
BIPH	Brookfield Infrastructure Partners L.P. Utilities	Added	48,930	+9	$1,609,307	−1.8%	0.64%
FTNT	Fortinet, Inc. Technology	Reduced	15,650	-200	$1,315,852	−21.5%	0.52%
ISRG	Intuitive Surgical Inc Healthcare	Held	2,500	0	$1,118,075	−17.7%	0.44%
ABBV	AbbVie Inc. Healthcare	Held	3,700	0	$856,698	+24.7%	0.34%
MMM	3M Co Industrials	Held	4,189	0	$650,049	+1.9%	0.26%
RTX	RTX Corp Industrials	Held	3,573	0	$597,870	+14.6%	0.24%
ITW	Illinois Tool Works Inc Industrials	Held	1,950	0	$508,482	+5.5%	0.20%