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Super Investors Mattern Wealth Management LLC
MW

Mattern Wealth Management LLC

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

Portfolio value
$609M
Positions
183
Quarter ended
June 30, 2026
Filed
July 23, 2026

Reported portfolio value by quarter (27 quarters reported)

$609M $139M
Q4 19 Q2 21 Q4 22 Q2 24 Q4 25 Q2 26

$167M in Q4 2019 → $609M 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
DE Dimensional ETF Trust 13.8% Added 2.3% 1,895,431 $84.1M
AC American Centy ETF Tr 8.0% Added 3.2% 379,466 $48.6M
DE Dimensional ETF Trust 6.2% Added 4.0% 1,021,560 $38.1M
DE Dimensional ETF Trust 4.7% Added 0.2% 604,523 $28.9M
DE Dimensional ETF Trust 4.4% Added 3.5% 548,877 $26.5M
IQ Invesco Qqq Tr 4.2% Added 14% 35,150 $25.9M
Apple Inc 3.6% Added 5.4% 74,854 $21.7M
Microsoft Corp 3.4% Added 8.5% 55,467 $20.7M
DE Dimensional ETF Trust 3.4% Added 4.4% 384,379 $20.6M
DE Dimensional ETF Trust 2.7% Added 32% 404,466 $16.4M
DE Dimensional ETF Trust 2.5% Added 3.4% 275,196 $15M
DE Dimensional ETF Trust 2.4% Added 1.3% 348,041 $14.7M
DE Dimensional ETF Trust 1.9% Added 51% 216,224 $11.7M
Caterpillar Inc 1.7% Added 0.0% 9,771 $10.4M
Alphabet Inc 1.5% Added 3.0% 25,286 $9.04M
AC American Centy ETF Tr 1.5% Trimmed 6.5% 191,929 $8.94M
Jpmorgan Chase & Co 1.4% Added 1.4% 26,466 $8.66M
DE Dimensional ETF Trust 1.4% Added 6.6% 161,282 $8.34M
DE Dimensional ETF Trust 1.3% Added 5.6% 154,640 $7.85M
Nvidia Corporation 1.3% Added 17% 39,059 $7.82M
Amazon Com Inc 1.2% Added 5.7% 29,425 $7.01M
Costco Wholesale Corporation 1.0% Added 0.9% 6,258 $5.85M
FT First Tr Exchange Traded Fd 0.9% Added 18% 66,401 $5.38M
AC American Centy ETF Tr 0.8% Added 82% 53,141 $4.85M
VI Vanguard Index Fds 0.8% Added 1.5% 12,922 $4.78M
AC American Centy ETF Tr 0.8% Added 1.1% 114,663 $4.75M
Walmart Inc 0.7% Added 4.3% 39,744 $4.5M
SS Schwab Strategic Tr 0.7% New 133,048 $4.22M
IT Ishares Tr 0.7% Added 1.5% 5,325 $3.99M
Visa Inc 0.6% Added 15% 11,491 $3.94M
IT Ishares Tr 0.6% Unchanged 27,280 $3.75M
SS Schwab Strategic Tr 0.6% New 120,000 $3.73M
Analog Devices Inc 0.6% Added 2.6% 9,385 $3.73M
SS Select Sector SPDR Tr 0.6% Unchanged 19,324 $3.68M
PE Pimco ETF Tr 0.6% Added 390% 34,705 $3.5M
Broadcom Inc 0.5% Added 18% 8,860 $3.35M
EL Eli Lilly & Co 0.5% Trimmed 1.5% 2,534 $3.04M
Exxon Mobil Corp 0.5% Added 0.2% 21,428 $2.93M
Chevron Corporation 0.5% Added 7.5% 16,837 $2.79M
Phillips 66 0.4% Trimmed 0.3% 15,103 $2.55M
Johnson & Johnson 0.4% Added 2.2% 9,980 $2.53M
M Mcdonalds Corp 0.3% Trimmed 1.3% 7,604 $2.06M
BH Berkshire Hathaway Inc Del 0.3% Trimmed 5.0% 4,088 $2.05M
LC Lowes Cos Inc 0.3% Trimmed 3.8% 8,984 $1.98M
IT Ishares Tr 0.3% Trimmed 1.2% 8,226 $1.81M
RF Rbb Fd Inc 0.3% Added 256% 35,063 $1.75M
Nextera Energy Inc 0.3% Added 17% 19,517 $1.71M
Blackrock Inc 0.3% Added 31% 1,688 $1.62M
EE Emerson Elec Co 0.3% Unchanged 10,972 $1.57M
L3harris Technologies Inc 0.3% Added 10% 5,379 $1.56M
Stryker Corporation 0.3% Trimmed 0.2% 4,889 $1.54M
IT Ishares Tr 0.2% Trimmed 2.0% 6,650 $1.51M
Abbott Laboratories 0.2% Trimmed 13% 15,483 $1.4M
AD Automatic Data Processing In 0.2% Trimmed 13% 6,091 $1.36M
UP Union Pac Corp 0.2% Unchanged 4,836 $1.32M
IT Ishares Tr 0.2% Added 0.4% 4,237 $1.27M
Linde PLC 0.2% Added 0.2% 2,415 $1.25M
ET Energy Transfer L P 0.2% Added 32% 64,522 $1.23M
Abbvie Inc 0.2% Added 0.4% 4,847 $1.22M
Deere & Co 0.2% Unchanged 1,884 $1.2M

Showing top 60 of 183 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 23, 2026

Company Action Shares changed Value of change % of portfolio
SS Schwab Strategic Tr New +133,048 +$4.22M 0.7%
DE Dimensional ETF Trust Added +73,292 +$3.96M 1.9%
DE Dimensional ETF Trust Added +97,247 +$3.95M 2.7%
SS Schwab Strategic Tr New +120,000 +$3.73M 0.6%
IQ Invesco Qqq Tr Added +4,287 +$3.16M 4.2%
DE Dimensional ETF Trust Exited −114,599 −$3.05M —
PE Pimco ETF Tr Added +27,618 +$2.78M 0.6%
AC American Centy ETF Tr Added +24,000 +$2.19M 0.8%
DE Dimensional ETF Trust Added +42,190 +$1.87M 13.8%
Microsoft Corp Added +4,352 +$1.62M 3.4%

Showing the 10 largest of 143 changes.

Q1 2026

quarter ended March 31, 2026 · filed April 23, 2026

Company Action Shares changed Value of change % of portfolio
DE Dimensional ETF Trust Added +18,339 +$993K 2.8%
Chevron Corporation Trimmed −4,775 −$988K 0.6%
DE Dimensional ETF Trust Added +18,396 +$965K 3.8%
DE Dimensional ETF Trust Added +19,860 +$772K 14.0%
DE Dimensional ETF Trust Trimmed −18,588 −$683K 0.2%
AC American Centy ETF Tr Added +11,298 +$529K 1.9%
DE Dimensional ETF Trust Added +14,192 +$490K 2.1%
DE Dimensional ETF Trust Trimmed −9,466 −$480K 1.4%
DE Dimensional ETF Trust Added +13,290 +$472K 6.8%
AC American Centy ETF Tr Added +3,777 +$420K 8.0%

Showing the 10 largest of 114 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 16, 2026

Company Action Shares changed Value of change % of portfolio
DE Dimensional ETF Trust Added +36,175 +$1.9M 3.5%
DE Dimensional ETF Trust Added +33,150 +$1.59M 5.5%
SS Select Sector SPDR Tr Added +9,662 +$1.39M 0.5%
DE Dimensional ETF Trust Added +30,752 +$1.22M 14.0%
AC American Centy ETF Tr Added +9,351 +$1.05M 7.8%
DE Dimensional ETF Trust Added +14,674 +$796K 2.6%
AC American Centy ETF Tr Added +16,702 +$786K 1.8%
DE Dimensional ETF Trust Added +20,672 +$712K 6.4%
AC American Centy ETF Tr New +12,793 +$592K 0.1%
DE Dimensional ETF Trust Added +13,349 +$568K 2.8%

Showing the 10 largest of 109 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 20, 2025

Company Action Shares changed Value of change % of portfolio
Microsoft Corp Trimmed −4,533 −$2.35M 5.3%
DE Dimensional ETF Trust Added +48,272 +$1.58M 6.2%
DE Dimensional ETF Trust Trimmed −24,570 −$1.18M 5.1%
DE Dimensional ETF Trust Added +17,025 +$865K 1.5%
IT Ishares Tr Trimmed −4,057 −$838K 0.3%
DE Dimensional ETF Trust Added +13,470 +$747K 2.6%
AC American Centy ETF Tr Added +6,560 +$713K 7.7%
FT First Tr Exchange-traded Fd Exited −11,500 −$566K —
DE Dimensional ETF Trust Trimmed −12,921 −$553K 2.8%
AC American Centy ETF Tr Trimmed −11,436 −$540K 1.7%

Showing the 10 largest of 107 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 17, 2025

Company Action Shares changed Value of change % of portfolio
AC American Centy ETF Tr Exited −265,222 −$12.1M —
DE Dimensional ETF Trust Added +238,523 +$11.3M 5.5%
AC American Centy ETF Tr Added +67,620 +$6.82M 7.3%
Broadcom Inc Trimmed −23,709 −$6.54M 0.4%
DE Dimensional ETF Trust Added +176,746 +$5.5M 5.8%
DE Dimensional ETF Trust Trimmed −143,263 −$4.25M 1.8%
Apple Inc Trimmed −17,785 −$3.65M 3.2%
DE Dimensional ETF Trust Added +64,954 +$3.3M 1.4%
DE Dimensional ETF Trust Added +75,653 +$2.71M 13.5%
DE Dimensional ETF Trust Exited −36,582 −$1.88M —

Showing the 10 largest of 119 changes.

Q1 2025

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

Company Action Shares changed Value of change % of portfolio
AC American Centy ETF Tr Added +108,546 +$10M 5.7%
DE Dimensional ETF Trust Added +108,446 +$3.58M 12.7%
Apple Inc Trimmed −10,974 −$2.44M 4.5%
Amgen Inc Trimmed −6,270 −$1.95M 0.2%
Chubb Limited Trimmed −6,208 −$1.87M 0.3%
General Dynamics Corp Trimmed −6,141 −$1.67M 0.2%
DE Dimensional ETF Trust Added +25,914 +$1.31M 0.7%
DE Dimensional ETF Trust Added +22,912 +$1.09M 6.1%
DE Dimensional ETF Trust Added +20,613 +$1.08M 3.5%
DE Dimensional ETF Trust Added +22,253 +$1.06M 3.3%

Showing the 10 largest of 126 changes.

Q4 2024

quarter ended December 31, 2024 · filed January 22, 2025

Company Action Shares changed Value of change % of portfolio
DE Dimensional ETF Trust Added +67,848 +$2.35M 12.4%
DE Dimensional ETF Trust Added +90,329 +$2.33M 4.1%
Broadcom Inc Added +9,609 +$2.23M 1.5%
DE Dimensional ETF Trust Exited −73,926 −$2.15M —
Blackrock Inc New +1,968 +$2.02M 0.4%
DE Dimensional ETF Trust New +39,621 +$2M 0.4%
AC American Centy ETF Tr New +28,973 +$1.93M 0.4%
Apple Inc Trimmed −7,086 −$1.77M 5.7%
DE Dimensional ETF Trust Added +60,759 +$1.59M 2.4%
Microsoft Corp Trimmed −3,225 −$1.36M 5.3%

Showing the 10 largest of 135 changes.

Q3 2024

quarter ended September 30, 2024 · filed October 21, 2024

Company Action Shares changed Value of change % of portfolio
DE Dimensional ETF Trust Added +572,245 +$19.6M 11.8%
IQ Invesco Qqq Tr New +29,154 +$14.2M 3.1%
DE Dimensional ETF Trust Trimmed −225,338 −$9.73M 3.2%
DE Dimensional ETF Trust Added +176,090 +$9.53M 3.2%
DE Dimensional ETF Trust Added +312,922 +$8.81M 3.8%
DE Dimensional ETF Trust Added +237,963 +$6.7M 2.2%
DE Dimensional ETF Trust Added +104,158 +$5.71M 2.2%
LC Lowes Cos Inc Trimmed −14,639 −$3.97M 0.6%
AC American Centy ETF Tr Trimmed −76,381 −$3.25M 1.0%
Broadcom Inc Added +18,048 +$3.11M 0.8%

Showing the 10 largest of 135 changes.

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