Mattern Capital Management, LLC

In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 14, 2024), Mattern Capital Management, LLC reported 157 stock positions worth $736.5 million. Its top holding was Microsoft (MSFT) at 2.2% of the portfolio, followed by Apple (AAPL, 2.0%) and Phillips 66 (PSX, 2.0%). Compared with Q4 2023, it opened 28 new positions, sold out of 7, added to 68 and reduced 40. The biggest buy was a new position in Broadcom (AVGO) and the biggest sale an exit from American Tower (AMT).

Most Recent 13F
Q2 2026
Location
LAKEWOOD, CO
CIK
0001803227
Portfolio Value
$736.5M (Q1 2024)
SEC Filing
0001725547-24-002124 ↗ filed May 14, 2024

Holdings Value

0$200.0M$400.0M$600.0M$800.0M$1.0B Q1 2024: $736.5M $736.5M Q1 2024 Q2 2024: $723.8M Q2 2024 Q3 2024: $794.6M Q3 2024 Q4 2024: $767.4M Q4 2024 Q1 2025: $785.4M Q1 2025 Q2 2025: $832.4M Q2 2025 Q3 2025: $850.6M Q3 2025 Q4 2025: $846.9M Q4 2025 Q1 2026: $834.9M Q1 2026 Q2 2026: $856.7M Q2 2026

Holdings 157 stocks · $736.5M
MSFT Microsoft Corp. 2.22% 38,785 $16.3M Reduce -7.6%
AAPL Apple Inc. 2.03% 87,097 $14.9M Add +0.7%
PSX Phillips 66 2.00% 90,268 $14.7M Reduce -9.0%
LOW Lowe's Cos Inc. 1.83% 53,001 $13.5M Reduce -3.4%
GWW WW Grainger Inc. filed as GRAINGER W W INC 1.78% 12,874 $13.1M Reduce -8.4%
COR Cencora Inc. 1.65% 50,013 $12.2M Reduce -4.0%
COST Costco Wholesale Corp. 1.61% 16,169 $11.8M Reduce -4.1%
TGT Target Corp. 1.58% 65,839 $11.7M Reduce -9.0%
BRO Brown & Brown Inc. 1.57% 131,747 $11.5M Reduce -1.0%
AFL Aflac Inc. 1.46% 125,485 $10.8M Add +1.3%
LIN Linde PLC 1.46% 23,144 $10.7M Reduce -0.2%
TSCO Tractor Supply Company 1.43% 40,097 $10.5M Reduce -3.1%
ADI Analog Devices Inc. 1.40% 52,017 $10.3M Add +1.3%
HD Home Depot Inc. 1.39% 26,667 $10.2M Add +0.2%
WMT Walmart Inc. 1.39% 169,869 $10.2M Add +0.7%
GD General Dynamics Corp. 1.38% 36,079 $10.2M Reduce -0.4%
CB Chubb Ltd. 1.38% 39,243 $10.2M Reduce -0.7%
SHW The Sherwin-Williams Co. 1.37% 28,958 $10.1M Reduce -1.6%
XYL Xylem Inc. 1.33% 76,072 $9.8M Reduce -5.6%
AMGN Amgen Inc. 1.32% 34,181 $9.7M Add +1.0%
ACN Accenture PLC Class A 1.30% 27,591 $9.6M Reduce -0.7%
EMR Emerson Electric Co. 1.30% 84,169 $9.5M Add +1.2%
UPS United Parcel Service Class B 1.28% 63,425 $9.4M Add +7.0%
SYK Stryker Corp. 1.28% 26,288 $9.4M Reduce -4.1%
UNH Unitedhealth Group Inc. 1.27% 18,930 $9.4M Add +7.2%
CTAS Cintas Corp. 1.27% 13,617 $9.4M Reduce -1.0%
BLK BlackRock Finance Inc. 1.27% 11,214 $9.3M Add +0.1%
SBUX Starbucks Corp. 1.27% 102,261 $9.3M Add +8.1%
NEE Nextera Energy Inc. 1.26% 145,500 $9.3M Add +8.7%
SPGI S&P Global Inc. 1.25% 21,668 $9.2M Add +2.9%
BR Broadridge Financial Solutio 1.24% 44,546 $9.1M Reduce -1.5%
LMT Lockheed Martin Corp. 1.22% 19,752 $9.0M Add +5.4%
UNP Union Pacific Corp. 1.22% 36,482 $9.0M Add +3.6%
ITW Illinois Tool Works 1.22% 33,400 $9.0M Add +1.6%
TXN Texas Instruments Inc. 1.21% 51,278 $8.9M Add +2.8%
ADP Automatic Data Processing 1.21% 35,640 $8.9M Add +2.7%
TROW T Rowe Price Group Inc. filed as PRICE T ROWE GROUP INC 1.19% 72,122 $8.8M Add +5.1%
ECL Ecolab Inc. 1.18% 37,616 $8.7M Reduce -5.0%
PLD Prologis Inc. 1.17% 66,284 $8.6M Add +3.3%
PEP Pepsico Inc. 1.16% 48,905 $8.6M Add +12.3%
MDT Medtronic PLC 1.16% 97,916 $8.5M Add +2.7%
PPG PPG Industries Inc. 1.16% 58,841 $8.5M Add +3.8%
ICE Intercontinental Exchange Inc. 1.15% 61,617 $8.5M Reduce -0.2%
CL Colgate-Palmolive Co. 1.15% 93,791 $8.4M Add +2.3%
PG The Procter & Gamble Co. 1.15% 52,014 $8.4M Add +4.2%
LHX L3HARRIS Technologies Inc. 1.14% 39,354 $8.4M Add +2.1%
FDS Factset Research Systems Inc. 1.13% 18,363 $8.3M Add +4.4%
JKHY Jack Henry & Associates Inc. filed as HENRY JACK & ASSOC INC 1.13% 47,692 $8.3M Add +2.6%
CSCO Cisco Systems Inc. 1.12% 165,782 $8.3M Add +4.5%
CHD Church & Dwight Co. Inc. 1.10% 77,778 $8.1M Add +3.8%
HON Honeywell International Inc. 1.10% 39,513 $8.1M Add +5.5%
CMCSA Comcast Corp. Class A 1.10% 186,556 $8.1M Add +3.7%
ZTS Zoetis Inc. 1.10% 47,773 $8.1M Add +5.1%
MCD McDonald's Corp. 1.10% 28,616 $8.1M Add +4.4%
APD Air Products & Chemicals Inc. 1.08% 32,908 $8.0M Add +22.4%
NKE Nike Inc. Class B 1.08% 84,442 $7.9M Add +15.6%
PAYX Paychex Inc. 1.08% 64,587 $7.9M Add +6.9%
ATO Atmos Energy Corp. 1.08% 66,667 $7.9M Add +7.3%
ABT Abbott Laboratories 1.07% 69,328 $7.9M Add +3.8%
MDLZ Mondelez International Inc. Class A 1.05% 110,929 $7.8M Add +4.2%
JNJ Johnson & Johnson 1.04% 48,191 $7.6M Add +6.8%
CBSH Commerce Bancshares Inc. 1.03% 142,940 $7.6M Add +1.5%
MKC McCormick & Co.-Non VTG SHRS 1.03% 98,920 $7.6M Add +11.2%
WEC WEC Energy Group Inc. 1.01% 91,001 $7.5M Add +17.3%
CMS CMS Energy Corp. 1.01% 123,466 $7.4M Add +8.5%
NJR New Jersey Resources Corp. 1.01% 173,335 $7.4M Add +10.0%
FRT Federal Realty Invs Trust 1.01% 72,708 $7.4M Add +9.2%
BDX Becton Dickinson and Co. 1.01% 29,944 $7.4M Add +10.5%
AWK American Water Works Co. Inc. 1.00% 60,253 $7.4M Add +11.1%
O Realty Income Corp. 0.95% 129,528 $7.0M Add +12.5%
BF.B Brown-Forman Corp. Class B 0.88% 125,315 $6.5M Add +18.8%
AVGO Broadcom Inc. 0.87% 4,811 $6.4M New
V Visa Inc. Class A 0.85% 22,355 $6.2M Add +2502.4%
PH Parker Hannifin Corp. 0.83% 11,054 $6.1M New
VOO Vanguard S&P 500 ETF 0.68% 10,471 $5.0M No change
SUB iShares Short-Term National 0.50% 35,471 $3.7M Add +1.0%
VNLA Janus Henderson Short Durati 0.37% 56,041 $2.7M Add +1.9%
DECK Deckers Outdoor Corp. 0.31% 2,457 $2.3M Reduce -59.6%
QQQ Invesco QQQ Trust Series 1 0.31% 5,103 $2.3M No change
QUAL iShares MSCI USA Quality Fac 0.26% 11,719 $1.9M Reduce -47.5%
AMZN Amazon.com Inc. 0.25% 10,399 $1.9M Add +32.0%
IWD iShares Russell 1000 Value E 0.22% 8,871 $1.6M No change
SPY SS SPDR S&P 500 ETF Trust-US 0.21% 2,951 $1.5M No change
IWF iShares Russell 1000 Growth 0.20% 4,328 $1.5M No change
NEAR iShares SH Dba ETF Usd Inc. 0.18% 26,407 $1.3M Reduce -2.1%
QCOM Qualcomm Inc. 0.15% 6,491 $1.1M Reduce -0.6%
VTI VG Morningstar TS MKT ETF-US 0.15% 4,179 $1.1M Reduce -2.8%
AVLV Avantis US Large Cap Value 0.14% 15,705 $1.0M Reduce -51.5%
TSLA Tesla Inc. 0.12% 5,195 $913K Add +33.6%
VEA Vanguard Ftse Developed ETF 0.12% 17,350 $870K No change
BRK.B Berkshire Hathaway Inc. Class B 0.11% 1,882 $791K Add +55.0%
NFLX Netflix Inc. 0.10% 1,238 $752K Add +71.2%
AON Aon PLC Class A 0.10% 2,141 $714K Add +83.0%
GOOG Alphabet Inc. Class C 0.10% 4,666 $710K Add +181.9%
IVW iShares S&P 500 Growth ETF 0.09% 8,158 $689K Reduce -47.6%
SHY iShares 1-3 Year Treasury Bo 0.09% 8,301 $679K Reduce -2.9%
COP Conocophillips 0.09% 5,073 $646K New
IBDP iShares Ibonds Dec 2024 Term 0.09% 25,720 $644K Reduce -0.3%
CVX Chevron Corp. 0.09% 4,049 $639K Add +131.6%
ISTB iShares Core 1-5 Year Usd Bo 0.09% 13,331 $632K No change
CMF iShares California Muni Bond 0.08% 10,674 $614K Add +3.0%
META Meta Platforms Inc. Class A 0.08% 1,246 $605K Add +110.1%
PWZ Invesco California Amt-Free 0.08% 23,202 $577K Add +2.0%
RTX RTX Corp. 0.08% 5,844 $570K Reduce -71.8%
VRTX Vertex Pharmaceuticals Inc. 0.07% 1,299 $543K New
LSST Natixis Loomis Sayles SHRT D 0.07% 22,707 $542K Add +1.4%
JPM JPMorgan Chase & Co. 0.07% 2,642 $529K New
VB Vanguard Most SM-Cap ETF-Usd 0.07% 2,283 $522K No change
IEMG iShares Core MSCI Emerging 0.07% 9,435 $487K No change
TSM Taiwan Semiconductor-SP ADR 0.06% 3,458 $470K New
IBTE iShares Ibonds Dec 2024 Term 0.06% 19,499 $467K No change
VTEB Vanguard Tax-Exempt Bond ETF 0.06% 8,937 $452K Reduce -1.7%
INMU iShares Intermediate Muni Inc. 0.06% 18,509 $440K Reduce -2.4%
DG Dollar General Corp. 0.06% 2,788 $435K New
BAX Baxter International Inc. 0.06% 10,135 $433K New
ADBE Adobe Inc. 0.06% 853 $430K New
FLOT iShares Floating Rate Bond E 0.06% 8,327 $425K Reduce -0.5%
CSGP Costar Group Inc. 0.06% 4,398 $425K New
VLUE iShares MSCI USA Value Facto 0.06% 3,811 $413K Reduce -7.2%
SHV iShares 0-1 Year Treasury Bo 0.06% 3,663 $405K Add +3.0%
INTU Intuit Inc. 0.05% 610 $397K New
MRK Merck & Co. Inc. 0.05% 2,903 $383K Add +11.5%
DLTR Dollar Tree Inc. 0.05% 2,803 $373K New
THG Hanover Insurance Group Inc./ 0.05% 2,657 $362K No change
ULTA Ulta Beauty Inc. 0.05% 685 $358K New
MA Mastercard Inc. Class A 0.05% 737 $355K New
WSO Watsco Inc. 0.05% 819 $354K New
VIG Vanguard Dividend Apprec ETF 0.05% 1,865 $341K Add +1.8%
IJH iShares Core S&P Midcap ETF 0.05% 5,550 $337K Reduce -36.3%
WM Waste Management Inc. 0.04% 1,554 $331K New
VNQ Vanguard Real Estate ETF 0.04% 3,815 $330K No change
RSG Republic Services Inc. 0.04% 1,721 $329K New
MRSH Marsh & McLennan Cos 0.04% 1,542 $318K New
VBR Vngrd Mrngst SL-CP Val ETF-U 0.04% 1,638 $314K No change
ET Energy Transfer LP 0.04% 19,897 $313K No change
VMC Vulcan Materials Co. 0.04% 1,138 $311K Reduce -91.8%
OKE Oneok Inc. 0.04% 3,767 $302K No change
FEX First Trust Large Cap Core A 0.04% 3,032 $301K No change
AAP Advance Auto Parts Inc. 0.04% 3,413 $290K New
EPD Enterprise Products Partners 0.04% 9,800 $286K No change
AVUV Avantis US Small Cap Value 0.04% 3,021 $283K Reduce -31.8%
IBDR iShares Ibonds Dec 2026 Term 0.04% 11,612 $277K New
DGRO iShares Core Dividend Growth 0.04% 4,744 $275K Reduce -34.5%
IBTG iShares Ibonds Dec 2026 Term 0.04% 12,118 $275K New
AZO AutoZone Inc. 0.04% 86 $271K New
SHYM iShares Short Duration High 0.04% 11,744 $264K Reduce -1.8%
MCO Moody's Corp. 0.04% 661 $260K New
ITOT iShares Core S&P Total U.S. 0.03% 2,168 $250K No change
AXP American Express Co. 0.03% 1,057 $241K New
PAA Plains All Amer Pipeline LP 0.03% 13,602 $239K No change
IWO iShares Russell 2000 Growth 0.03% 858 $232K No change
IBDQ iShares Ibonds Dec 2025 Term 0.03% 9,202 $228K New
IBTF iShares Ibonds Dec 2025 Term 0.03% 9,787 $227K New
ERF Enerplus Corp. 0.03% 11,500 $226K Reduce -41.0%
ORLY O'reilly Automotive Inc. 0.03% 197 $222K New
LLY Eli Lilly & Co. 0.03% 285 $222K New
NVS Novartis AG-Sponsored ADR 0.03% 2,211 $214K No change

Portfolio Sells Q4 2023 → Q1 2024
AMT American Tower Corp. Sold out 0.00% −1.17
XEL Xcel Energy Inc. Sold out 0.00% −1.10
VMC Vulcan Materials Co. Reduce -91.8% 0.04% −0.41
DECK Deckers Outdoor Corp. Reduce -59.6% 0.31% −0.28
QUAL iShares MSCI USA Quality Fac Reduce -47.5% 0.26% −0.22
RTX RTX Corp. Reduce -71.8% 0.08% −0.18
AVLV Avantis US Large Cap Value Reduce -51.5% 0.14% −0.13
ES Eversource Energy Sold out 0.00% −0.13
CLX Clorox Company Sold out 0.00% −0.13
SJM The JM Smucker Co. Sold out 0.00% −0.13
ACN Accenture PLC Class A Reduce -0.7% 1.30% −0.12
BR Broadridge Financial Solutio Reduce -1.5% 1.24% −0.11
MSFT Microsoft Corp. Reduce -7.6% 2.22% −0.08
IVW iShares S&P 500 Growth ETF Reduce -47.6% 0.09% −0.08
ACWI iShares MSCI Acwi ETF Sold out 0.00% −0.04
IGSB iShares 1-5Y Inv Grade Corp. Sold out 0.00% −0.03
IJH iShares Core S&P Midcap ETF Reduce -36.3% 0.05% −0.02
AVUV Avantis US Small Cap Value Reduce -31.8% 0.04% −0.02
DGRO iShares Core Dividend Growth Reduce -34.5% 0.04% −0.02
NEAR iShares SH Dba ETF Usd Inc. Reduce -2.1% 0.18% −0.02
ERF Enerplus Corp. Reduce -41.0% 0.03% −0.01
SHY iShares 1-3 Year Treasury Bo Reduce -2.9% 0.09% −0.01
COST Costco Wholesale Corp. Reduce -4.1% 1.61% −0.01
VTEB Vanguard Tax-Exempt Bond ETF Reduce -1.7% 0.06% −0.01
IBDP iShares Ibonds Dec 2024 Term Reduce -0.3% 0.09% −0.01
INMU iShares Intermediate Muni Inc. Reduce -2.4% 0.06% −0.01
XYL Xylem Inc. Reduce -5.6% 1.33% −0.01
VLUE iShares MSCI USA Value Facto Reduce -7.2% 0.06% −0.00
FLOT iShares Floating Rate Bond E Reduce -0.5% 0.06% −0.00
SHYM iShares Short Duration High Reduce -1.8% 0.04% −0.00
ICE Intercontinental Exchange Inc. Reduce -0.2% 1.15% −0.00
VTI VG Morningstar TS MKT ETF-US Reduce -2.8% 0.15% −0.00
QCOM Qualcomm Inc. Reduce -0.6% 0.15% +0.01
GD General Dynamics Corp. Reduce -0.4% 1.38% +0.02
SHW The Sherwin-Williams Co. Reduce -1.6% 1.37% +0.03
ECL Ecolab Inc. Reduce -5.0% 1.18% +0.04
LOW Lowe's Cos Inc. Reduce -3.4% 1.83% +0.06
CTAS Cintas Corp. Reduce -1.0% 1.27% +0.07
LIN Linde PLC Reduce -0.2% 1.46% +0.07
PSX Phillips 66 Reduce -9.0% 2.00% +0.08
CB Chubb Ltd. Reduce -0.7% 1.38% +0.08
SYK Stryker Corp. Reduce -4.1% 1.28% +0.08
TGT Target Corp. Reduce -9.0% 1.58% +0.09
GWW WW Grainger Inc. Reduce -8.4% 1.78% +0.09
COR Cencora Inc. Reduce -4.0% 1.65% +0.09
TSCO Tractor Supply Company Reduce -3.1% 1.43% +0.13
BRO Brown & Brown Inc. Reduce -1.0% 1.57% +0.19

Portfolio Buys Q4 2023 → Q1 2024
AVGO Broadcom Inc. New 0.87% +0.87
PH Parker Hannifin Corp. New 0.83% +0.83
V Visa Inc. Class A Add +2502.4% 0.85% +0.81
MKC McCormick & Co.-Non VTG SHRS Add +11.2% 1.03% +0.15
TROW T Rowe Price Group Inc. Add +5.1% 1.19% +0.12
EMR Emerson Electric Co. Add +1.2% 1.30% +0.12
WMT Walmart Inc. Add +0.7% 1.39% +0.10
COP Conocophillips New 0.09% +0.09
PEP Pepsico Inc. Add +12.3% 1.16% +0.09
CL Colgate-Palmolive Co. Add +2.3% 1.15% +0.08
PG The Procter & Gamble Co. Add +4.2% 1.15% +0.08
AMZN Amazon.com Inc. Add +32.0% 0.25% +0.08
NEE Nextera Energy Inc. Add +8.7% 1.26% +0.08
VRTX Vertex Pharmaceuticals Inc. New 0.07% +0.07
CHD Church & Dwight Co. Inc. Add +3.8% 1.10% +0.07
JPM JPMorgan Chase & Co. New 0.07% +0.07
WEC WEC Energy Group Inc. Add +17.3% 1.01% +0.07
TSM Taiwan Semiconductor-SP ADR New 0.06% +0.06
GOOG Alphabet Inc. Class C Add +181.9% 0.10% +0.06
DG Dollar General Corp. New 0.06% +0.06
BAX Baxter International Inc. New 0.06% +0.06
ADBE Adobe Inc. New 0.06% +0.06
CSGP Costar Group Inc. New 0.06% +0.06
INTU Intuit Inc. New 0.05% +0.05
META Meta Platforms Inc. Class A Add +110.1% 0.08% +0.05
CMS CMS Energy Corp. Add +8.5% 1.01% +0.05
NFLX Netflix Inc. Add +71.2% 0.10% +0.05
DLTR Dollar Tree Inc. New 0.05% +0.05
CVX Chevron Corp. Add +131.6% 0.09% +0.05
ULTA Ulta Beauty Inc. New 0.05% +0.05
MA Mastercard Inc. Class A New 0.05% +0.05
WSO Watsco Inc. New 0.05% +0.05
HD Home Depot Inc. Add +0.2% 1.39% +0.05
AON Aon PLC Class A Add +83.0% 0.10% +0.05
BDX Becton Dickinson and Co. Add +10.5% 1.01% +0.05
WM Waste Management Inc. New 0.04% +0.04
RSG Republic Services Inc. New 0.04% +0.04
BRK.B Berkshire Hathaway Inc. Class B Add +55.0% 0.11% +0.04
MRSH Marsh & McLennan Cos New 0.04% +0.04
AAP Advance Auto Parts Inc. New 0.04% +0.04
IBDR iShares Ibonds Dec 2026 Term New 0.04% +0.04
IBTG iShares Ibonds Dec 2026 Term New 0.04% +0.04
AZO AutoZone Inc. New 0.04% +0.04
MCO Moody's Corp. New 0.04% +0.04
ADP Automatic Data Processing Add +2.7% 1.21% +0.03
AXP American Express Co. New 0.03% +0.03
IBDQ iShares Ibonds Dec 2025 Term New 0.03% +0.03
PAYX Paychex Inc. Add +6.9% 1.08% +0.03
IBTF iShares Ibonds Dec 2025 Term New 0.03% +0.03
ORLY O'reilly Automotive Inc. New 0.03% +0.03

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 166$856.7MAAPL, GWW, MSFT, UNH, COST
Q1 2026 170$834.9MAAPL, PSX, MSFT, COST, COR
Q4 2025 170$846.9MAAPL, MSFT, WMT, COR, AVGO
Q3 2025 172$850.6MAAPL, MSFT, WMT, COR, LOW
Q2 2025 170$832.4MMSFT, AAPL, WMT, COR, COST
Q1 2025 163$785.4MAAPL, BRO, MSFT, COST, COR
Q4 2024 160$767.4MAAPL, MSFT, COST, WMT, GWW
Q3 2024 156$794.6MAAPL, MSFT, LOW, COST, AFL
Q2 2024 157$723.8MAAPL, MSFT, COST, PSX, LOW
Q1 2024 157$736.5MMSFT, AAPL, PSX, LOW, GWW