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Mattern Capital Management, LLC

CIK:0001803227
Investment Adviser
$999M AUM
172 holdings
Lakewood, CO, US
Founded:2019
8 employees
Latest filing:Sep 30, 2025

Mattern Capital Management, LLC is a Colorado-based investment adviser founded in 2019 and headquartered in Lakewood, CO. The firm manages nearly $1 billion in assets for a diverse clientele, including individuals (both high net worth and non-high net worth), charitable organizations, insurance companies, and select business entities. With a team of approximately 8 employees, Mattern Capital offers tailored wealth management and investment advisory services focused on long-term client relationships and comprehensive financial planning.

Investment Strategy

Mattern Capital Management pursues a disciplined, client-centric investment strategy focused on portfolio diversification and long-term value generation. The firm constructs portfolios primarily using large-cap U.S. equities, seeking consistent growth while managing risk through broad sector and company exposure. Their client-specific portfolios emphasize efficient market participation, fundamental analysis, and active oversight. The firm is committed to holistic wealth management that integrates investment, tax, trust, and legal planning for individuals and family entities.

Top Buys
C
CEGCONSTELLATION ENERGY CORP
+$7.5M
I
INTUINTUIT
+$6.0M
A
AAPLAPPLE INC
+$3.6M
A
APHAMPHENOL CORP NEW
+$3.1M
L
LLYELI LILLY & CO
+$2.7M
Top Sells
U
UNPUNION PAC CORP
-$9.1M
L
LMTLOCKHEED MARTIN CORP
-$9.0M
T
TROWPRICE T ROWE GROUP INC
-$7.8M
F
FDSFACTSET RESH SYS INC
-$3.0M
J
JKHYHENRY JACK & ASSOC INC
-$1.5M

Top Holdings

A
AAPLAPPLE INC
+2.4%$20.1M
M
MSFTMICROSOFT CORP
+2.3%$19.3M
W
WMTWALMART INC
+1.7%$14.6M
L
LOWLOWES COS INC
+1.6%$13.3M
A
AVGOBROADCOM INC
+1.5%$13.0M

Equity Positions (171)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
A
AAPL
APPLE INC2.37%$20.1M79,018$93.72$254.63+$3.6M
M
MSFT
MICROSOFT CORP2.27%$19.3M37,220$195.53$517.95+$338.7K
W
WMT
WALMART INC1.71%$14.6M141,219$44.27$103.06+$436.7K
L
LOW
LOWES COS INC1.56%$13.3M52,735$139.46$251.31+$1.4M
A
AVGO
BROADCOM INC1.52%$13.0M39,314$142.40$329.91+$811.4K

Industry Allocation

PHARMACEUTICAL PREPARATIONS
+4.5%
SEMICONDUCTORS & RELATED DEVICES
+4.4%
RETAIL-VARIETY STORES
+4.4%
SERVICES-BUSINESS SERVICES, NEC
+4.2%
SERVICES-PREPACKAGED SOFTWARE
+3.4%