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Super Investors MATTERN CAPITAL MANAGEMENT, LLC
MC

MATTERN CAPITAL MANAGEMENT, LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$857M
Positions
166
Quarter ended
June 30, 2026
Filed
July 24, 2026

Reported portfolio value by quarter (27 quarters reported)

$857M $294M
Q4 19 Q2 21 Q4 22 Q2 24 Q4 25 Q2 26

$361M in Q4 2019 → $857M now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Apple Inc 2.6% Trimmed 1.6% 76,362 $22.1M
Ww Grainger Inc 1.9% Trimmed 1.6% 11,817 $16.1M
Microsoft Corp 1.8% Trimmed 0.6% 41,086 $15.3M
Unitedhealth Group Inc 1.7% Trimmed 9.1% 35,240 $14.6M
Costco Wholesale Corporation 1.6% Trimmed 0.3% 14,372 $13.4M
Broadcom Inc 1.6% Trimmed 5.4% 35,199 $13.3M
Cencora Inc 1.5% Added 12% 46,831 $13.3M
Aflac Inc 1.5% Trimmed 0.3% 110,309 $12.9M
CS Cisco Sys Inc 1.5% Added 5.4% 106,058 $12.5M
Linde PLC 1.4% Trimmed 1.4% 23,750 $12.3M
Chubb Limited 1.4% Trimmed 0.4% 35,965 $12.3M
EL Eli Lilly & Co 1.4% Added 6.2% 10,188 $12.2M
Wec Energy Group Inc 1.4% Trimmed 5.5% 103,889 $12.1M
LC Lowes Cos Inc 1.4% Added 5.6% 54,910 $12.1M
General Dynamics Corp 1.4% Added 1.6% 33,512 $11.9M
TI Texas Instrs Inc 1.4% Trimmed 2.2% 39,548 $11.8M
Nextera Energy Inc 1.3% Trimmed 1.7% 131,600 $11.6M
Cms Energy Corp 1.3% Trimmed 5.5% 150,896 $11.5M
AD Automatic Data Processing In 1.3% Added 1.7% 50,215 $11.2M
AW American Wtr Wks Co Inc New 1.3% Trimmed 3.0% 84,940 $11.2M
Trane Technologies PLC 1.3% Trimmed 4.0% 22,695 $11.1M
Amphenol Corp 1.3% Added 18% 62,586 $11M
Brown & Brown Inc 1.3% Added 19% 169,855 $10.9M
Sherwin Williams Co 1.3% Added 7.2% 31,373 $10.8M
FR Factset Resh Sys Inc 1.3% Added 0.3% 46,828 $10.8M
L3harris Technologies Inc 1.2% Added 5.5% 36,645 $10.6M
Home Depot Inc 1.2% Added 10% 30,013 $10.6M
Walmart Inc 1.2% Added 5.9% 93,445 $10.6M
Paychex Inc 1.2% Added 0.3% 107,571 $10.6M
Analog Devices Inc 1.2% Trimmed 0.5% 26,398 $10.5M
Jpmorgan Chase & Co 1.2% Added 510% 31,711 $10.4M
Ecolab Inc 1.2% Added 4.1% 36,966 $10.3M
Motorola Solutions Inc 1.2% Added 0.5% 24,690 $10.3M
Atmos Energy Corp 1.2% Trimmed 0.6% 59,371 $10.2M
Blackrock Inc 1.2% Added 2.3% 10,621 $10.2M
Amgen Inc 1.2% Added 17% 28,008 $10.1M
Johnson & Johnson 1.2% Added 13% 39,870 $10.1M
Visa Inc 1.2% Added 9.5% 29,508 $10.1M
Parker-hannifin Corp 1.2% Added 12% 10,138 $9.92M
Abbott Laboratories 1.2% Added 3.0% 109,046 $9.89M
IT Illinois Tool Wks Inc 1.2% Added 3.0% 36,515 $9.88M
Xylem Inc 1.2% Added 10% 83,398 $9.86M
WM Waste Mgmt Inc Del 1.1% Added 4.3% 44,162 $9.84M
S&P Global Inc 1.1% Added 10% 24,125 $9.83M
Roper Technologies Inc 1.1% Trimmed 0.1% 29,027 $9.82M
NJ New Jersey Res Corp 1.1% Trimmed 3.0% 174,671 $9.79M
Stryker Corporation 1.1% Added 17% 31,079 $9.78M
Prologis Inc. 1.1% Trimmed 1.5% 71,369 $9.67M
Colgate Palmolive Co 1.1% Added 0.2% 104,479 $9.58M
Cintas Corp 1.1% Added 8.1% 55,902 $9.51M
BF Broadridge Finl Solutions In 1.1% Added 6.0% 66,397 $9.09M
Church & Dwight Co Inc 1.1% Added 1.6% 92,883 $9M
Tractor Supply Co 1.0% Added 44% 284,547 $8.99M
Procter & Gamble Co 1.0% Added 5.6% 61,179 $8.97M
Medtronic PLC 1.0% Added 14% 114,041 $8.92M
BW Berkley W R Corp 1.0% Added 12% 126,077 $8.89M
Mastercard Incorporated 1.0% Added 6.4% 16,976 $8.72M
M Mcdonalds Corp 1.0% Added 6.9% 31,907 $8.62M
Constellation Energy Corp 1.0% Trimmed 7.4% 34,378 $8.54M
BD Becton Dickinson & Co 1.0% Added 34% 55,723 $8.43M

Showing top 60 of 166 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed July 24, 2026

Company Action Shares changed Value of change % of portfolio
Phillips 66 Trimmed −51,700 −$8.74M 0.7%
Jpmorgan Chase & Co Added +26,516 +$8.68M 1.2%
PI Ppg Inds Inc Trimmed −70,855 −$8.59M 0.1%
Commerce Bancshares Inc Trimmed −128,134 −$7.4M 0.2%
Mccormick & Co Inc Exited −123,731 −$6.24M —
FR Federal Rlty Invt Tr New Trimmed −38,737 −$4.78M 0.2%
Realty Income Corp Trimmed −71,831 −$4.45M 0.1%
Tractor Supply Co Added +86,868 +$2.75M 1.0%
Nike Inc Added +58,208 +$2.39M 0.9%
Zoetis Inc Added +29,761 +$2.14M 0.8%

Showing the 10 largest of 147 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 04, 2026

Company Action Shares changed Value of change % of portfolio
Motorola Solutions Inc New +24,556 +$10.7M 1.3%
Target Corp Trimmed −86,745 −$10.5M —
EE Emerson Elec Co Trimmed −75,983 −$9.96M —
Trane Technologies PLC New +23,635 +$9.85M 1.2%
WM Waste Mgmt Inc Del Added +37,547 +$8.63M 1.2%
AP Air Prods & Chems Inc Exited −34,706 −$8.57M —
Brown Forman Corp Exited −265,715 −$6.92M —
Walmart Inc Trimmed −54,972 −$6.83M 1.3%
Analog Devices Inc Trimmed −20,895 −$6.65M 1.0%
Intuit Added +10,595 +$4.58M 1.2%

Showing the 10 largest of 156 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 29, 2026

Company Action Shares changed Value of change % of portfolio
Starbucks Corp Trimmed −98,055 −$8.26M 0.1%
HI Honeywell Intl Inc Trimmed −38,924 −$7.59M 0.1%
CN Comcast Corp New Exited −234,941 −$7.38M —
FR Factset Resh Sys Inc Added +9,971 +$2.89M 1.0%
AN Amphenol Corp New Trimmed −17,616 −$2.38M 1.0%
Roper Technologies Inc Added +4,966 +$2.21M 1.0%
Brown Forman Corp Added +71,929 +$1.87M 0.8%
Nextera Energy Inc Trimmed −22,955 −$1.84M 1.3%
Zoetis Inc Added +12,436 +$1.56M 1.0%
Intuit Added +2,296 +$1.52M 1.0%

Showing the 10 largest of 149 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 21, 2025

Company Action Shares changed Value of change % of portfolio
Lockheed Martin Corp Trimmed −19,449 −$9.71M 0.1%
UP Union Pac Corp Exited −39,549 −$9.1M —
PT Price T Rowe Group Inc Trimmed −81,091 −$8.32M —
Constellation Energy Corp New +22,802 +$7.5M 0.9%
Intuit Added +8,966 +$6.12M 0.8%
EL Eli Lilly & Co Added +3,673 +$2.8M 1.0%
Roper Technologies Inc Added +3,749 +$1.87M 0.8%
Mastercard Incorporated Added +3,243 +$1.84M 0.8%
Broadcom Inc Trimmed −4,795 −$1.58M 1.5%
BW Berkley W R Corp Added +20,381 +$1.56M 0.9%

Showing the 10 largest of 151 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 21, 2025

Company Action Shares changed Value of change % of portfolio
JP J P Morgan Exchange Traded F New +104,228 +$5.59M 0.7%
SD SPDR Dow Jones Indl Average New +6,297 +$2.77M 0.3%
Roper Technologies Inc Added +2,453 +$1.39M 0.7%
AN Amphenol Corp New Added +13,812 +$1.36M 0.8%
IQ Invesco Qqq Tr Added +2,070 +$1.14M 0.5%
Mastercard Incorporated Added +1,716 +$964K 0.6%
Alphabet Inc Added +5,143 +$912K 0.2%
AC American Centy ETF Tr Added +21,554 +$897K 0.7%
Nvidia Corporation Added +4,334 +$685K 0.2%
Apple Inc Added +3,068 +$629K 2.0%

Showing the 10 largest of 154 changes.

Q1 2025

quarter ended March 31, 2025 · filed April 23, 2025

Company Action Shares changed Value of change % of portfolio
BW Berkley W R Corp New +73,590 +$5.24M 0.7%
EL Eli Lilly & Co Added +5,705 +$4.71M 0.7%
Roper Technologies Inc New +7,348 +$4.33M 0.6%
AN Amphenol Corp New New +56,267 +$3.69M 0.5%
Mastercard Incorporated Added +6,272 +$3.44M 0.5%
United Parcel Service Inc Trimmed −14,304 −$1.57M 0.1%
Apple Inc Trimmed −4,754 −$1.06M 2.2%
Aflac Inc Trimmed −9,164 −$1.02M 1.5%
Brown & Brown Inc Trimmed −8,176 −$1.02M 1.9%
CW Costco Whsl Corp New Trimmed −1,066 −$1.01M 1.7%

Showing the 10 largest of 149 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 03, 2025

Company Action Shares changed Value of change % of portfolio
Blackrock Inc New +10,572 +$10.8M 1.4%
Blackrock Inc Exited −11,141 −$10.6M —
Tractor Supply Co Added +154,932 +$8.22M 1.3%
Walmart Inc Trimmed −13,240 −$1.2M 1.8%
Nike Inc Added +15,178 +$1.15M 1.0%
PI Ppg Inds Inc Added +8,204 +$980K 1.1%
United Parcel Service Inc Trimmed −7,507 −$947K 0.3%
Aflac Inc Trimmed −9,003 −$931K 1.5%
Broadcom Inc Trimmed −3,804 −$882K 1.4%
Tesla Inc Trimmed −2,086 −$842K 0.2%

Showing the 10 largest of 139 changes.

Q3 2024

quarter ended September 30, 2024 · filed October 24, 2024

Company Action Shares changed Value of change % of portfolio
Cintas Corp Added +39,648 +$8.16M 1.4%
Broadcom Inc Added +45,569 +$7.86M 1.1%
AC American Centy ETF Tr New +92,298 +$3.92M 0.5%
IT Ishares Tr Trimmed −28,462 −$3.02M 0.1%
Deckers Outdoor Corp Added +12,540 +$2M 0.3%
JD Janus Detroit Str Tr Trimmed −39,237 −$1.92M 0.1%
VM Vanguard Mun Bd Fds Added +27,621 +$1.41M 0.2%
IU Ishares U S ETF Tr Exited −26,616 −$1.34M —
United Parcel Service Inc Trimmed −8,477 −$1.16M 0.5%
IT Ishares Tr Exited −25,720 −$646K —

Showing the 10 largest of 139 changes.

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