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MCM

Mattern Capital Management Portfolio holdings

AUM $857M
1-Year Est. Return 4.87%
This Fund
S&P 500
This Quarter Est. Return
+0.09%
1 Year Est. Return
+4.87%
3 Year Est. Return
+31.49%
5 Year Est. Return
+42.28%
10 Year Est. Return
–
AUM
$847M
AUM Growth
-$3.63M
Cap. Flow
+$46.3K
Cap. Flow %
0.01%
Top 10 Hldgs %
17.02%
Holding
176
New
4
Increased
96
Reduced
43
Closed
6

Top Buys

Rank Stock Value
1
FDS icon
Factset
FDS
+$2.8M
2
ROP icon
Roper Technologies
ROP
+$2.3M
3
BF.B icon
Brown-Forman Class B
BF.B
+$2.02M
4
ZTS icon
Zoetis
ZTS
+$1.62M
5
INTU icon
Intuit
INTU
+$1.52M

Top Sells

Rank Stock Value
1
SBUX icon
Starbucks
SBUX
+$8.27M
2
HON icon
Honeywell
HON
+$8.11M
3
CMCSA icon
Comcast
CMCSA
+$7.38M
4
APH icon
Amphenol
APH
+$2.36M
5
NEE icon
NextEra Energy
NEE
+$1.9M

Sector Composition

Rank Sector Weight
1 Technology 19.79%
2 Financials 13.69%
3 Healthcare 12.31%
4 Consumer Staples 11.29%
5 Industrials 10.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TROW icon
176
T. Rowe Price
TROW
$23.9B
– –
-1,976
Closed -$203K
4 5 6 7
8

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Mattern Capital Management's Q4 2025 Portfolio in Review

As of Q4 2025, Mattern Capital Management held 176 positions worth $847M, down 0.43% from $851M the previous quarter. Its ten largest holdings account for 17% of the portfolio.

Mattern Capital Management's Q4 2025 filing shows 4 new, 96 increased, 43 reduced and 6 closed positions. Its largest new stake was Tyler Technologies: 2,122 shares worth $963K. The largest sale was Starbucks, an estimated $8.27M.

By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 19% a quarter earlier, followed by Financials and Healthcare.

  • Mattern Capital Management's largest Q4 2025 buy was Tyler Technologies: 2,122 shares worth $963K.
  • Mattern Capital Management added most to Factset in Q4 2025, an estimated $2.8M increase.
  • Mattern Capital Management's biggest Q4 2025 reduction was Starbucks, cutting an estimated $8.27M.
  • Mattern Capital Management fully exited Comcast in Q4 2025, selling an estimated $7.38M.
  • Mattern Capital Management's ten largest holdings make up 17% of its $847M portfolio in Q4 2025.
  • Mattern Capital Management opened 4 new positions and closed 6 in Q4 2025.
  • Mattern Capital Management's portfolio value fell 0.43% quarter-over-quarter to $847M.

Based on Mattern Capital Management's 13F filing for Q4 2025, filed 29 Jan 2026.