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Stone Run Capital Portfolio holdings

AUM $254M
1-Year Est. Return 12.86%
This Fund
S&P 500
This Quarter Est. Return
+7.09%
1 Year Est. Return
+12.86%
3 Year Est. Return
+77.77%
5 Year Est. Return
+98.28%
10 Year Est. Return
+404.21%
AUM
$254M
AUM Growth
+$3.74M
Cap. Flow
-$6.24M
Cap. Flow %
-2.46%
Top 10 Hldgs %
38.34%
Holding
73
New
5
Increased
13
Reduced
31
Closed
2

Top Buys

Rank Stock Value
1
SNPS icon
Synopsys
SNPS
+$3.53M
2
TMO icon
Thermo Fisher Scientific
TMO
+$717K
3
ENTG icon
Entegris
ENTG
+$566K
4
PANW icon
Palo Alto Networks
PANW
+$493K
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$419K

Top Sells

Rank Stock Value
1
ANSS
Ansys
ANSS
+$5.63M
2
MIDD icon
Middleby
MIDD
+$1.95M
3
VLTO icon
Veralto
VLTO
+$770K
4
BDX icon
Becton Dickinson
BDX
+$604K
5
SPGI icon
S&P Global
SPGI
+$565K

Sector Composition

Rank Sector Weight
1 Technology 33.57%
2 Industrials 24.59%
3 Healthcare 17.74%
4 Materials 12.05%
5 Financials 7.54%

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Stone Run Capital's Q3 2025 Portfolio in Review

As of Q3 2025, Stone Run Capital held 73 positions worth $254M, up 1.5% from $250M the previous quarter. Its ten largest holdings account for 38% of the portfolio.

Stone Run Capital's Q3 2025 filing shows 5 new, 13 increased, 31 reduced and 2 closed positions. Its largest new stake was Ralliant Corp: 7,016 shares worth $307K. The largest sale was Ansys, an estimated $5.63M.

By sector, the portfolio is most concentrated in Technology at 34% of assets, up from 33% a quarter earlier, followed by Industrials and Healthcare.

  • Stone Run Capital's largest Q3 2025 buy was Ralliant Corp: 7,016 shares worth $307K.
  • Stone Run Capital added most to Synopsys in Q3 2025, an estimated $3.53M increase.
  • Stone Run Capital's biggest Q3 2025 reduction was Middleby, cutting an estimated $1.95M.
  • Stone Run Capital fully exited Ansys in Q3 2025, selling an estimated $5.63M.
  • Stone Run Capital's ten largest holdings make up 38% of its $254M portfolio in Q3 2025.
  • Stone Run Capital opened 5 new positions and closed 2 in Q3 2025.
  • Stone Run Capital's portfolio value rose 1.5% quarter-over-quarter to $254M.

Based on Stone Run Capital's 13F filing for Q3 2025, filed 14 Nov 2025.