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Columbia Asset Management

Position in DTE — Dte Energy Co

CIK 1585047 Ann Arbor, MI

Position in DTE

as of Jun 30, 2026 · filed Jul 21, 2026
Position Value
$1,564,687
+$67,687 QoQ
Shares Held
10,269
+0.3% QoQ
Ownership
0.005%
of shares outstanding
% of Portfolio
0.30%
of 13F equity value
Holder Rank
#350
of 1,030 holders
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in DTE Over Time

Shares Held

Position Value (USD)

Derivatives in DTE

reported options exposure · as of Mar 31, 2025
CallValue
$511,754
CallShares
515,000
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Utilities - Regulated Electric

Utilities · as of Jun 30, 2026

Columbia Asset Management holds $6,439,102 across 6 Utilities - Regulated Electric names. DTE ranks #3 (24.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 DTE
Dte Energy Co
This page
10,269 $1,564,687

All Filings in DTE

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27 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,564,687 10,269
2026-03-31 $1,497,000 10,238
2025-12-31 $1,330,557 10,316
2025-09-30 $1,594,340 11,273
2025-06-30 $1,493,089 11,272
2025-03-31 $511,754 515,000
2025-03-31 $1,600,475 11,575
2024-12-31 $1,431,370 11,854
2024-12-31 $30,026 30,000
2024-09-30 $1,557,228 12,127
2024-06-30 $1,348,327 12,146
2024-03-31 $1,549,214 13,815
2023-12-31 $1,523,241 13,815
2023-09-30 $1,612,009 16,237
2023-06-30 $1,992,132 18,107
2023-03-31 $2,114,122 19,300
2022-12-31 $2,322,275 19,759
2022-09-30 $2,258,661 19,632
2022-06-30 $2,525,367 19,924
2021-12-31 $2,306,285 19,293
2021-09-30 $2,365,682 21,177
2021-06-30 $2,822,688 21,780
2021-03-31 $3,145,564 23,626
2020-12-31 $2,607,280 21,475
2020-09-30 $2,274,226 19,769
2020-06-30 $1,774,180 16,504
2020-03-31 $1,065,847 11,223