Columbia Asset Management

Q3 2025 13F-HR Holdings

Location
Ann Arbor, MI
Holdings as of
9/30/2025
Date filed
11/4/2025
Form type
13F-HR
Num holdings
168
Total value ($000)
$534,415
Net value change ($000)
+25,633 (5.0%)
New positions
6
Sold out positions
8
Turnover %
0.8%
Sector allocation + QoQ delta (equities-only)
Prev filing: 7/18/2025 Next filing: 1/28/2026 SEC filing

Snapshot: Change Analysis

Compared to Q2 2025
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)
AAPL 9,046 21.2%
GOOGL 5,377 37.8%
AVGO 2,728 17.9%
GOOGL 2,478 37.0%
JNJ 2,085 24.6%
ABBV 1,496 22.1%
MSFT 1,429 3.1%
CAT 1,297 21.3%
NVDA 1,257 24.0%
UNH 993 NEW
Top Reduces (Value $000, Stocks/ETFs)
ERIE -2,064 -8.3%
UPS -1,186 -27.4%
V -1,075 -5.7%
CMG -800 -71.7%
SBUX -716 -9.0%
DE -693 -15.2%
NFLX -582 -12.7%
IBM -576 -5.7%
T -550 -16.4%
DIS -489 -10.5%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 115 (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.
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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