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Mattern Wealth Management LLC

Location
LAWRENCE, KS
Portfolio Value
Small $175,334,910
Diversification
Diversified
Filing Date
Global Rank
#4,503 / 8,605 ▲ 14 · as of Mar 2026
Top Industry
Software - Infrastructure 12.3%
3Y Alpha vs SPY
-4.1%
Period ended 3 months ago
Filed Apr 23, 2026 · 3mo
25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio
+59.2%
SPY
+76.5%
Annualised alpha
-4.1%
Max drawdown
−17.9%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

103 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025
Top Position
10.8%
−2.5 pts
Top 5
39.6%
−3.4 pts
Top 10
56.4%
−1.8 pts
HHI
457
Jun 2023 → Mar 2026 · range 316 – 539
Diversified−62

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026
Sector % Portfolio Value
Technology 29.9% $52,481,586
Unclassified 10.9% $19,115,090
Financial Services 10.7% $18,813,792
Industrials 9.6% $16,799,688
Consumer Defensive 9.0% $15,761,749
Energy 7.8% $13,673,955
Healthcare 6.5% $11,393,114
Consumer Cyclical 6.3% $11,073,795
Communication Services 5.3% $9,230,358
Basic Materials 1.8% $3,235,142
Utilities 1.6% $2,737,038
Real Estate 0.6% $1,019,603

Last Quarter's Activity

Export CSV
Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased
10 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
8 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
8 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
103 positions · $175,334,910 total · as of Mar 31, 2026
Showing 1–50 of 103 positions by value · page 1 of 3
Ticker Company Shares Value (USD) % of Portfolio History