Burnham & Co LLC

Q3 2026 13F-HR Holdings

Location
Grand Rapids, MI
Holdings as of
9/30/2026
Date filed
11/12/2026
Form type
13F-HR
Num holdings
214
Total value ($000)
$126,731
Net value change ($000)
+2,715 (2.2%)
New positions
26
Sold out positions
9
Turnover %
2.7%
Sector allocation + QoQ delta (equities-only)
Prev filing: 8/11/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q2 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
CLS 2,657 291.3%
VRT 2,588 NEW
MSFT 2,036 37.9%
SPACE EXPLORATION TECHN CORP 1,242 1267.3%
NVDA 884 13.7%
AAPL 708 14.6%
HNI 523 13.0%
CAIE 465 42.5%
PLTR 336 54.3%
TMO 290 34.6%
Top Reduces (Value $000, Stocks/ETFs)
LEU -1,331 -18.7%
GSST -1,201 -24.7%
VST -868 -48.4%
LLY -742 -7.6%
MP -536 -61.3%
SYK -534 -14.0%
ICLR -487 -7.1%
COST -483 -55.3%
LULU -460 -96.4%
IBM -427 -18.9%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type