Columbia Asset Management

Registered adviser

CIK

1585047

Location

Ann Arbor, MI

Portfolio Value

Small $574,917,198

Diversification

Diversified

Filing Date

Global Rank

#3,510 / 8,816 ▼ 81 · as of Jun 2026

Top Industry

Consumer Electronics 12.0%

Period ended 24 days ago

Filed Oct 19, 2026 · 5d

26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Oct 1, 2026

Form ADV adviser

CRD 124174

Roster of Oct 1, 2026

Regulatory AUM

$1,200,007,629

Main clients

Individuals and high net worth (85% of AUM)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Oct 2026	$1,200,007,629	Individuals and high net worth (85%)
Apr 2025 to Mar 2026	$1,051,081,664	Individuals and high net worth (87%)
Apr 2024 to Mar 2025	$979,856,441	Individuals and high net worth (88%)
May 2023 to Mar 2024	$794,811,645	Individuals and high net worth (87%)
Apr 2022 to Apr 2023	$858,842,967	Individuals and high net worth (87%)
Apr 2021 to Mar 2022	$706,913,352	Individuals and high net worth (84%)

2 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, the newest measured quarter, never from the firm's own description.

Style

Diversified active

Top 10 weight 42.3%, 35.4 effective positions, active share 50.0% against the S&P 500 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests

Turnover

Low turnover

9.6% over the last four quarters (under 30%)

Horizon

Long horizon

Value-weighted holding period 22.6 quarters (12+), a floor since 73.8% of the book was already held when coverage starts

Closest benchmark: the S&P 500 as of 2026-06-30, active share 50.0%; sector active share 11.4% against the combined 13F book's sector weights.

Over time 25 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

167 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026

Top Position

10.7%

+1.2 pts

Top 5

31.1%

+2.7 pts

Top 10

44.4%

+2.0 pts

HHI

320

Diversified+37

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026

Sector	% Portfolio	Value	Positions
Technology	30.2%	$173,353,257	24
Financial Services	13.9%	$79,888,185	19
Healthcare	13.0%	$74,855,881	18
Communication Services	9.2%	$52,731,144	9
Consumer Cyclical	7.6%	$43,960,554	16
Industrials	7.5%	$43,248,644	23
Unclassified	7.2%	$41,424,156	20
Consumer Defensive	5.4%	$31,310,149	15
Energy	3.8%	$21,985,069	8
Utilities	1.0%	$5,597,805	6
Basic Materials	0.6%	$3,343,961	6
Real Estate	0.6%	$3,218,393	3

Last Quarter's Activity

Export CSV

Sep 30, 2026 vs Jun 30, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
NKE	NIKE, Inc.	+19,237	122,374	$4,332,039
MDT	Medtronic plc	+3,516	67,143	$5,793,769
CLX	Clorox Co	+2,785	17,341	$1,404,794
PEP	Pepsico Inc	+2,657	34,431	$4,363,096
DIS	Walt Disney Co	+2,172	35,004	$3,671,919
EQNR	Equinor ASA	+1,990	32,120	$1,336,192
HONA	Honeywell Aerospace Inc.	+1,934	8,210	$1,272,303
NVDA	Nvidia Corp	+1,929	35,596	$8,129,414
TROW	Price T Rowe Group Inc	+1,922	23,952	$2,492,205
NFLX	Netflix Inc	+1,600	38,398	$2,671,732
CMCSA	Comcast Corp	+1,570	32,620	$709,811
BKR	Baker Hughes Co	+1,450	7,470	$410,103
RIO	Rio Tinto PLC	+1,107	14,525	$1,367,819
BATRK	Atlanta Braves Holdings, Inc.	+880	42,285	$2,238,567
QCOM	Qualcomm Inc	+616	12,280	$2,260,011
AEP	American Electric Power Co Inc	+425	13,946	$1,654,553
D	Dominion Energy, Inc	+370	7,109	$430,236
GLD	Spdr Gold Trust	+239	4,294	$1,635,326
MO	Altria Group, Inc.	+175	13,065	$879,797
VT	VANGUARD TOTAL WORLD STOCK INDEX FUND	+125	1,695	$267,555
SPY	Spdr S&P 500 ETF Trust	+118	13,952	$10,640,213
DUK	Duke Energy CORP	+105	12,729	$1,451,233
DECK	Deckers Outdoor Corp	+100	21,137	$1,651,645
GD	General Dynamics Corp	+68	3,961	$1,314,378
MMM	3M Co	+45	13,722	$2,252,466
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
TGT	Target Corp	−8,512	31,175	$4,884,810
VXUS	Vanguard Total International Stock ETF	−7,004	46,916	$3,985,983
BP	Bp PLC	−6,691	118,814	$5,226,627
T	At&T Inc.	−5,136	87,511	$2,135,268
AAPL	Apple Inc.	−5,102	184,879	$61,568,404
VZ	Verizon Communications Inc	−4,870	122,014	$5,596,782
ORLY	O Reilly Automotive Inc	−4,500	6,825	$582,923
PFE	Pfizer Inc	−4,391	185,777	$5,298,360
GOOGL	Alphabet Inc.	−4,040	68,222	$23,473,825
UPS	United Parcel Service Inc	−3,972	32,298	$3,017,925
MRK	Merck & Co., Inc.	−3,639	106,836	$15,524,339
AMZN	Amazon Com Inc	−3,343	77,230	$19,241,854
INTC	Intel Corp	−2,875	10,536	$1,266,743
CSCO	Cisco Systems, Inc.	−2,112	83,980	$9,038,767
SHEL	Shell plc	−1,979	35,976	$3,419,518
AVGO	Broadcom Inc.	−1,943	43,499	$15,276,413
F	Ford Motor Co	−1,900	10,008	$120,696
V	Visa Inc.	−1,698	48,332	$17,367,137
JEPQ	JPMorgan Nasdaq Equity Premium Income ETF	−1,672	3,356	$205,588
KO	Coca Cola Co	−1,650	69,262	$5,962,072
JNJ	Johnson & Johnson	−1,604	49,588	$13,127,927
MSFT	Microsoft Corp	−1,301	88,008	$45,139,303
ITW	Illinois Tool Works Inc	−1,280	8,491	$2,184,564
UL	Unilever PLC	−1,270	14,865	$902,751
WMT	Walmart Inc.	−1,208	6,241	$648,564
No positions match the current search.

New Positions

Positions the filer opened this quarter

7 positions

Ticker	Company	Shares	Value
XOM	ExxonMobil Holdings Corp	22,183	$3,610,283
LHX	L3harris Technologies, Inc.	2,130	$504,341
NVO	Novo Nordisk A S	10,185	$386,113
LOGI	Logitech International S.A.	3,750	$378,712
PANW	Palo Alto Networks Inc	622	$247,126
GPC	Genuine Parts Co	1,650	$207,471
SPCX	Space Exploration Technologies Corp	776	$117,067
No positions match the current search.

Sold Out

Positions the filer fully exited

8 positions

Ticker	Company	Shares	Value
JEPI	JPMorgan Equity Premium Income ETF	6,894	$389,373
LULU	lululemon athletica inc.	3,360	$383,644
SIRI	Sirius Xm Holdings Inc.	11,495	$339,562
—		1,450	$297,308
MNST	Monster Beverage Corp	2,895	$278,267
GIS	General Mills Inc	7,886	$274,432
DTM	DT Midstream, Inc.	1,633	$239,626
WPC	W. P. Carey Inc.	2,890	$206,635
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

167 tracked positions · $574,917,198 total · filing declares 168 positions · $575,924,753 · as of Sep 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 167 positions by value · page 1 of 4

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
AAPL	Apple Inc. Technology	Reduced	184,879	-5,102	$61,568,404	+12.0%	10.71%
MSFT	Microsoft Corp Technology	Reduced	88,008	-1,301	$45,139,303	+35.5%	7.85%
GOOGL	Alphabet Inc. Communication Services	Reduced	68,222	-4,040	$23,473,825	−9.1%	4.08%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	77,230	-3,343	$19,241,854	+0.2%	3.35%
V	Visa Inc. Financial Services	Reduced	48,332	-1,698	$17,367,137	+1.2%	3.02%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	33,693	-37	$16,777,429	−0.6%	2.92%
ERIE	Erie Indemnity Co Financial Services	Added	72,619	+27	$15,914,453	−8.6%	2.77%
MRK	Merck & Co., Inc. Healthcare	Reduced	106,836	-3,639	$15,524,339	+9.4%	2.70%
AVGO	Broadcom Inc. Technology	Reduced	43,499	-1,943	$15,276,413	−11.0%	2.66%
JNJ	Johnson & Johnson Healthcare	Reduced	49,588	-1,604	$13,127,927	+1.0%	2.28%
GOOG	Alphabet Inc. Communication Services	Reduced	34,442	-370	$11,735,767	−4.6%	2.04%
CAT	Caterpillar Inc Industrials	Reduced	13,328	-839	$10,806,209	−28.4%	1.88%
SPY	Spdr S&P 500 ETF Trust	Added	13,952	+118	$10,640,213	+3.0%	1.85%
JPM	Jpmorgan Chase & Co Financial Services	Reduced	30,685	-1,112	$10,151,518	−2.5%	1.77%
CSCO	Cisco Systems, Inc. Technology	Reduced	83,980	-2,112	$9,038,767	−10.6%	1.57%
ABBV	AbbVie Inc. Healthcare	Reduced	33,790	-735	$8,839,126	+1.7%	1.54%
LLY	ELI LILLY & Co Healthcare	Reduced	7,541	-468	$8,725,540	−9.2%	1.52%
AMGN	Amgen Inc Healthcare	Reduced	20,659	-799	$8,707,975	+12.1%	1.51%
NVDA	Nvidia Corp Technology	Added	35,596	+1,929	$8,129,414	+20.7%	1.41%
SBUX	Starbucks Corp Consumer Cyclical	Reduced	78,527	-1,207	$7,378,396	−9.4%	1.28%
CVX	Chevron Corp Energy	Reduced	34,611	-272	$7,067,912	+22.2%	1.23%
UNP	Union Pacific Corp Industrials	Reduced	23,045	-269	$6,271,235	−1.1%	1.09%
IBM	International Business Machines Corp Technology	Reduced	28,160	-243	$6,193,228	−22.5%	1.08%
KO	Coca Cola Co Consumer Defensive	Reduced	69,262	-1,650	$5,962,072	+3.5%	1.04%
MDT	Medtronic plc Healthcare	Added	67,143	+3,516	$5,793,769	+16.4%	1.01%
VZ	Verizon Communications Inc Communication Services	Reduced	122,014	-4,870	$5,596,782	+4.2%	0.97%
PFE	Pfizer Inc Healthcare	Reduced	185,777	-4,391	$5,298,360	+15.7%	0.92%
BP	Bp PLC Energy	Reduced	118,814	-6,691	$5,226,627	+12.7%	0.91%
PG	PROCTER & GAMBLE Co Consumer Defensive	Reduced	35,440	-1,041	$5,148,723	−3.8%	0.90%
TGT	Target Corp Consumer Defensive	Reduced	31,175	-8,512	$4,884,810	−5.8%	0.85%
DE	Deere & Co Industrials	Reduced	7,134	-637	$4,790,837	−2.8%	0.83%
VB	Vanguard Index Funds	Added	16,740	+1	$4,762,362	−6.1%	0.83%
GLW	Corning Inc Technology	Reduced	29,956	-406	$4,606,034	−40.6%	0.80%
VIG	Vanguard Specialized Funds	Added	19,214	+10	$4,482,818	−1.3%	0.78%
PEP	Pepsico Inc Consumer Defensive	Added	34,431	+2,657	$4,363,096	+1.4%	0.76%
NKE	NIKE, Inc. Consumer Cyclical	Added	122,374	+19,237	$4,332,039	+2.3%	0.75%
MU	Micron Technology Inc Technology	Reduced	4,015	-472	$4,276,416	−17.4%	0.74%
VXUS	Vanguard Total International Stock ETF	Reduced	46,916	-7,004	$3,985,983	−13.5%	0.69%
COST	Costco Wholesale Corp Consumer Defensive	Reduced	4,108	-245	$3,739,676	−8.2%	0.65%
DIS	Walt Disney Co Communication Services	Added	35,004	+2,172	$3,671,919	+16.2%	0.64%
VUG	VANGUARD GROWTH INDEX FUND	Added	40,177	+20	$3,620,349	+4.7%	0.63%
XOM	ExxonMobil Holdings Corp Energy	NEW	22,183	NEW	$3,610,283	NEW	0.63%
SYK	Stryker Corp Healthcare	Reduced	13,079	-398	$3,601,825	−15.1%	0.63%
VO	VANGUARD MID-CAP INDEX FUND	Reduced	45,918	-29	$3,600,889	−2.7%	0.63%
SHEL	Shell plc Energy	Reduced	35,976	-1,979	$3,419,518	+16.2%	0.59%
MCD	Mcdonalds Corp Consumer Cyclical	Reduced	14,784	-800	$3,414,216	−19.0%	0.59%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	11,803	-299	$3,357,835	−21.3%	0.58%
AXP	American Express Co Financial Services	Reduced	10,650	-179	$3,238,665	−11.6%	0.56%
ADBE	Adobe Inc. Technology	Reduced	12,582	-316	$3,018,925	+14.2%	0.53%
UPS	United Parcel Service Inc Industrials	Reduced	32,298	-3,972	$3,017,925	−22.6%	0.52%

Showing the top 50 of 167 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

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.