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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
PLTR icon
126
Palantir
PLTR
$295B
$823K 0.1%
4,631
-179
-4% -$32.4K
PWZ icon
127
Invesco California AMT-Free Municipal Bond ETF
PWZ
$1.14B
$798K 0.09%
33,047
+1,108
+3% +$26.8K
CMF icon
128
iShares California Muni Bond ETF
CMF
$4.55B
$743K 0.09%
12,925
+502
+4% +$28.8K
WDAY icon
129
Workday
WDAY
$39.6B
$715K 0.08%
+3,330
New +$757K
IEMG icon
130
iShares Core MSCI Emerging Markets ETF
IEMG
$150B
$634K 0.07%
9,435
– –
ORLY icon
131
O'Reilly Automotive
ORLY
$72.9B
$633K 0.07%
6,935
+305
+5% +$29.8K
AVUV icon
132
Avantis US Small Cap Value ETF
AVUV
$30.3B
$609K 0.07%
5,968
+236
+4% +$23.6K
RTX icon
133
RTX Corp
RTX
$290B
$592K 0.07%
3,226
-71
-2% -$12.3K
VB icon
134
Vanguard Morningstar Small-Cap ETF
VB
$79.5B
$589K 0.07%
2,283
– –
SBUX icon
135
Starbucks
SBUX
$120B
$575K 0.07%
6,834
-98,055
-93% -$8.27M
DFAT icon
136
Dimensional US Targeted Value ETF
DFAT
$14.6B
$570K 0.07%
9,565
+260
+3% +$15.2K
HON icon
137
Honeywell
HON
$77B
$565K 0.07%
2,895
-41,475
-93% -$8.11M
IBDR icon
138
iShares iBonds Dec 2026 Term Corporate ETF
IBDR
$3.44B
$554K 0.07%
22,870
– –
IBDS icon
139
iShares iBonds Dec 2027 Term Corporate ETF
IBDS
$3.84B
$554K 0.07%
22,810
– –
DFIV icon
140
Dimensional International Value ETF
DFIV
$21.3B
$513K 0.06%
10,285
+810
+9% +$38.5K
LMT icon
141
Lockheed Martin
LMT
$134B
$504K 0.06%
1,042
-112
-10% -$53.6K
THG icon
142
Hanover Insurance
THG
$8.1B
$486K 0.06%
2,657
– –
JTEK icon
143
JPMorgan US Tech Leaders ETF
JTEK
$4.1B
$426K 0.05%
4,730
+255
+6% +$23.4K
XOM icon
144
ExxonMobil
XOM
$644B
$424K 0.05%
3,521
+24
+0.7% +$2.78K
GOOGL icon
145
Alphabet (Google) Class A
GOOGL
$4.36T
$417K 0.05%
1,333
-165
-11% -$47.1K
INMU icon
146
BlackRock Intermediate Muni Income Bond ETF
INMU
$540M
$384K 0.05%
15,964
-193
-1% -$4.64K
VLUE icon
147
iShares MSCI USA Value Factor ETF
VLUE
$9.17B
$378K 0.04%
2,765
-7
-0.3% -$918
FEX icon
148
First Trust Large Cap Core AlphaDEX Fund
FEX
$1.57B
$360K 0.04%
3,032
– –
VNQ icon
149
Vanguard Real Estate ETF
VNQ
$39.2B
$338K 0.04%
3,815
– –
VIG icon
150
Vanguard Dividend Appreciation ETF
VIG
$111B
$324K 0.04%
1,474
– –
4 5
6
7 8

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NOCM
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OAM
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BCM
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AWM
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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.