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Burnham & Co LLC

Location
GRAND RAPIDS, MI
Portfolio Value
Small $102,529,946
Diversification
Diversified
Filing Date
Jun 30, 2026
Global Rank
#5,970 / 8,517
Top Industry
Drug Manufacturers - General 14.8%
Period ended 48 days ago
Filed Aug 11, 2026 · 6d

Clone Performance

Aug 2026–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio
+0.0%
SPY
+0.0%
Annualised alpha
Max drawdown
−0.0%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. Returns use comparable raw closes and exclude dividends; a captured split can shorten the simulated window. It tracks 100% of reported value on average across 1 quarter. Past performance does not predict future results.

Portfolio Concentration

132 tracked positions · as of Jun 30, 2026
Top Position
9.5%
of portfolio value
Top 5
35.3%
of portfolio value
Top 10
57.9%
of portfolio value
HHI
425
Diversified

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Healthcare 28.0% $28,708,494
Technology 21.4% $21,902,608
Consumer Cyclical 11.5% $11,755,394
Industrials 9.1% $9,342,790
Energy 7.5% $7,717,073
Communication Services 5.8% $5,944,666
Financial Services 5.4% $5,496,951
Utilities 5.2% $5,345,395
Consumer Defensive 2.9% $2,925,372
Basic Materials 1.9% $1,939,446
Unclassified 1.2% $1,232,070
Real Estate 0.2% $219,687

Portfolio Positions

Export CSV View 13F filing
132 tracked positions · $102,529,946 total · filing declares 197 positions · $124,016,060 · as of Jun 30, 2026
Showing 1–50 of 132 positions by value · page 1 of 3
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.