Columbia Asset Management

CIK 0001585047 · ANN ARBOR, MI · Quarter end: 2026-06-30 · Filed on: 2026-07-21 · Open the SEC source

Columbia Asset Management reported 168 positions worth $575.2M as of June 30, 2026 (13F filed July 21, 2026). Largest holding: AAPL (9.6%).

Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$575.2M
2026 Q2
Positions
168
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
40.2%
Est. Net Flow (Q)
2026 Q2
10 / 168 positions shown
#SymbolCompanyTypeValue% Port.Shares1YYTD
1AAPLAPPLE INCSH$55.0M9.56%189,981
2MSFTMICROSOFT CORPSH$33.3M5.79%89,309
3GOOGLALPHABET INCSH$25.8M4.49%72,262
4AMZNAMAZON COM INCSH$19.2M3.34%80,573
5ERIEERIE INDTY COSH$17.4M3.03%72,592
6AVGOBROADCOM INCSH$17.2M2.98%45,442
7VVISA INCSH$17.2M2.98%50,030
8BRK-BBERKSHIRE HATHAWAY INC DELSH$16.9M2.93%33,730
9CATCATERPILLAR INCSH$15.1M2.62%14,167
10MRKMERCK & CO INCSH$14.2M2.47%110,475

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Read the 2026-Q2 quarterly report · 13F Filing Calendar

Frequently Asked Questions

What stocks does Columbia Asset Management hold as of Q2 2026?

Columbia Asset Management reported 168 positions worth $575.2M in its Q2 2026 13F filing. Largest positions: AAPL (9.6%), MSFT (5.8%), GOOGL (4.5%), AMZN (3.3%) and ERIE (3.0%).

What did Columbia Asset Management buy in Q2 2026?

No previous quarter is available yet; the comparison appears with the next filing.

What did Columbia Asset Management sell in Q2 2026?

No previous quarter is available yet.

13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.