Columbia Asset Management

Q2 2025 13F-HR Holdings

Location
Ann Arbor, MI
Holdings as of
6/30/2025
Date filed
7/18/2025
Form type
13F-HR
Num holdings
170
Total value ($000)
$508,782
Net value change ($000)
—
New positions
168
Sold out positions
0
Turnover %
100.0%
Sector allocation + QoQ delta (equities-only)
Prev filing: 5/23/2014 Next filing: 11/4/2025 SEC filing

Snapshot: Change Analysis

Compared to previous filing: —
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)
MSFT 46,189 —
AAPL 42,731 —
ERIE 24,763 —
V 19,020 —
AMZN 18,835 —
AVGO 15,203 —
GOOGL 14,208 —
IBM 10,066 —
JPM 10,028 —
SPY 9,206 —
Top Reduces (Value $000, Stocks/ETFs)
—
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 124 (0.0% of total reported value)
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.
Filter:
Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type