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MCM

Mattern Capital Management Portfolio holdings

AUM $835M
1-Year Est. Return 3.68%
This Fund
S&P 500
This Quarter Est. Return
-1.89%
1 Year Est. Return
+3.68%
3 Year Est. Return
+30.74%
5 Year Est. Return
+44.06%
10 Year Est. Return
–
AUM
$835M
AUM Growth
-$12.1M
Cap. Flow
+$11.7M
Cap. Flow %
1.4%
Top 10 Hldgs %
16.96%
Holding
179
New
9
Increased
83
Reduced
55
Closed
9

Top Buys

Rank Stock Value
1
MSI icon
Motorola Solutions
MSI
+$10.6M
2
TT icon
Trane Technologies
TT
+$10M
3
WM icon
Waste Management
WM
+$8.63M
4
INTU icon
Intuit
INTU
+$5.05M
5
CEG icon
Constellation Energy
CEG
+$4.1M

Top Sells

Rank Stock Value
1
EMR icon
Emerson Electric
EMR
+$10.9M
2
TGT icon
Target
TGT
+$9.78M
3
APD icon
Air Products & Chemicals
APD
+$8.57M
4
BF.B icon
Brown-Forman Class B
BF.B
+$6.92M
5
WMT icon
Walmart Inc
WMT
+$6.75M

Sector Composition

Rank Sector Weight
1 Technology 20.1%
2 Financials 13.54%
3 Healthcare 11.58%
4 Industrials 11.48%
5 Utilities 9.67%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
O icon
76
Realty Income
O
$61.3B
$5.62M 0.67%
91,836
-47,542
-34% -$2.98M
USFR icon
77
WisdomTree Floating Rate Treasury Fund
USFR
$17.9B
$3.46M 0.41%
+68,713
New +$3.46M
QQQ icon
78
Invesco QQQ Trust
QQQ
$466B
$3.13M 0.38%
5,431
-480
-8% -$292K
AMZN icon
79
Amazon
AMZN
$2.66T
$3.09M 0.37%
14,835
+514
+4% +$113K
DIA icon
80
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$45B
$2.92M 0.35%
6,297
– –
VNLA icon
81
Janus Henderson Short Duration Income ETF
VNLA
$3.32B
$2.82M 0.34%
57,761
+16,478
+40% +$810K
NFLX icon
82
Netflix
NFLX
$290B
$2.67M 0.32%
27,783
+12,280
+79% +$1.08M
TFLO icon
83
iShares Treasury Floating Rate Bond ETF
TFLO
$6.56B
$2.65M 0.32%
+52,412
New +$2.65M
AVLV icon
84
Avantis US Large Cap Value ETF
AVLV
$16.9B
$2.49M 0.3%
30,921
+9,030
+41% +$732K
VTEB icon
85
Vanguard Tax-Exempt Bond Index Fund
VTEB
$45.6B
$2.28M 0.27%
45,720
+1,904
+4% +$96.1K
COP icon
86
ConocoPhillips
COP
$140B
$2.27M 0.27%
17,193
+476
+3% +$52.7K
CVX icon
87
Chevron
CVX
$373B
$2.2M 0.26%
10,648
+217
+2% +$39.6K
IWD icon
88
iShares Russell 1000 Value ETF
IWD
$81.9B
$2.19M 0.26%
10,246
+233
+2% +$51K
GOOG icon
89
Alphabet (Google) Class C
GOOG
$4.22T
$2.07M 0.25%
7,229
+487
+7% +$153K
CRM icon
90
Salesforce
CRM
$140B
$2.04M 0.24%
10,927
+5,947
+119% +$1.23M
TSM icon
91
TSMC
TSM
$2.07T
$1.88M 0.23%
5,567
+180
+3% +$61.9K
DUHP icon
92
Dimensional US High Profitability ETF
DUHP
$12.2B
$1.82M 0.22%
49,586
+16,336
+49% +$627K
VRTX icon
93
Vertex Pharmaceuticals
VRTX
$123B
$1.73M 0.21%
3,877
+188
+5% +$87.7K
NVO
94
Novo Nordisk
NVO
$223B
$1.7M 0.2%
46,324
+16,524
+55% +$783K
TYL icon
95
Tyler Technologies
TYL
$13.1B
$1.7M 0.2%
4,960
+2,838
+134% +$1.06M
ASML icon
96
ASML
ASML
$671B
$1.54M 0.18%
1,168
+28
+2% +$38.4K
JPM icon
97
JPMorgan Chase
JPM
$907B
$1.53M 0.18%
5,195
+218
+4% +$66.2K
MSCI icon
98
MSCI
MSCI
$45.8B
$1.49M 0.18%
+2,764
New +$1.56M
SPY icon
99
State Street SPDR S&P 500 ETF Trust
SPY
$774B
$1.45M 0.17%
2,231
– –
BRK.B icon
100
Berkshire Hathaway Class B
BRK.B
$1.06T
$1.43M 0.17%
2,992
+160
+6% +$78.5K
2 3
4
5 6

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FPGK
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DLP
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SEM
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NWM
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AWA
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Mattern Capital Management's Q1 2026 Portfolio in Review

As of Q1 2026, Mattern Capital Management held 179 positions worth $835M, down 1.4% from $847M the previous quarter. Its ten largest holdings account for 17% of the portfolio.

Mattern Capital Management's Q1 2026 filing shows 9 new, 83 increased, 55 reduced and 9 closed positions. Its largest new stake was Motorola Solutions: 24,556 shares worth $10.7M. The largest sale was Emerson Electric, an estimated $10.9M.

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

  • Mattern Capital Management's largest Q1 2026 buy was Motorola Solutions: 24,556 shares worth $10.7M.
  • Mattern Capital Management added most to Waste Management in Q1 2026, an estimated $8.63M increase.
  • Mattern Capital Management's biggest Q1 2026 reduction was Emerson Electric, cutting an estimated $10.9M.
  • Mattern Capital Management fully exited Air Products & Chemicals in Q1 2026, selling an estimated $8.57M.
  • Mattern Capital Management's ten largest holdings make up 17% of its $835M portfolio in Q1 2026.
  • Mattern Capital Management opened 9 new positions and closed 9 in Q1 2026.
  • Mattern Capital Management's portfolio value fell 1.4% quarter-over-quarter to $835M.

Based on Mattern Capital Management's 13F filing for Q1 2026, filed 4 May 2026.