DTE Energy Company
MX ˙ BMV ˙ US2333311072
SecurityMX:DTE1 / DTE Energy Company
InstitutionHartland & Co., LLC
Latest Disclosed Ownership1,357 shares
Latest Disclosed Value $ 198,421
Hartland & Co., LLC reports 26.96% decrease in ownership of DTE1 / DTE Energy Company

On May 6, 2026 - Hartland & Co., LLC filed a 13F-HR form disclosing ownership of 1,357 shares of DTE Energy Company (MX:DTE1) valued at $198,421 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 1,858 shares of DTE Energy Company. This represents a change in shares of -26.96% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-06 2026-03-31 13F DTE ENERGY COM 233331107 1,357 -501 -26.96 198 -17.15 0.0018
2026-02-09 2025-12-31 13F DTE ENERGY COM 233331107 1,858 -922 -33.17 240 -39.19 0.0030
2025-11-10 2025-09-30 13F DTE ENERGY COM 233331107 2,780 26 0.94 393 7.97 0.0052
2025-08-08 2025-06-30 13F DTE ENERGY COM 233331107 2,754 1,389 101.76 365 93.62 0.0051
2025-05-13 2025-03-31 13F DTE ENERGY COM 233331107 1,365 98 7.73 189 22.88 0.0029
2025-02-10 2024-12-31 13F DTE ENERGY COM 233331107 1,267 -86 -6.36 153 -11.56 0.0023
2024-11-13 2024-09-30 13F DTE ENERGY COM 233331107 1,353 17 1.27 174 16.89 0.0027
2024-08-12 2024-06-30 13F DTE ENERGY COM 233331107 1,336 0 0.00 148 -3.90 0.0025
2024-05-14 2024-03-31 13F DTE ENERGY COM 233331107 1,336 -38 -2.77 154 1.99 0.0076
2024-02-12 2023-12-31 13F DTE ENERGY COM 233331107 1,374 110 8.70 151 20.80 0.0080
2023-11-13 2023-09-30 13F/A-1 DTE ENERGY COM 233331107 1,264 -926 -42.28 125 -47.92 0.0077
2023-11-07 2023-09-30 13F DTE ENERGY COM 233331107 1,264 -926 125 0.0069
2023-08-07 2023-06-30 13F DTE ENERGY COM 233331107 2,190 32 1.48 241 1.69 0.0146
2023-05-09 2023-03-31 13F DTE ENERGY COM 233331107 2,158 -112 -4.93 236 -11.28 0.0172
2023-02-14 2022-12-31 13F DTE ENERGY COM 233331107 2,270 7 0.31 267 2.31 0.0209
2022-11-15 2022-09-30 13F DTE ENERGY COM 233331107 2,263 970 75.02 260 58.54 0.0240
2022-08-12 2022-06-30 13F DTE ENERGY COM 233331107 1,293 29 2.29 164 -1.80 0.0128
2022-05-04 2022-03-31 13F DTE ENERGY COM 233331107 1,264 1,264 167 0.0113
2022-02-14 2021-12-31 13F DTE ENERGY COM 233331107 0 -33 -100.00 0 -100.00
2021-11-12 2021-09-30 13F DTE ENERGY COM 233331107 33 15 83.33 4 100.00 0.0003
2021-08-12 2021-06-30 13F DTE ENERGY COM 233331107 18 18 2 0.0002
2020-11-12 2020-09-30 13F DTE ENERGY COM 233331107 0 -100 -100.00 0 -100.00
2020-08-11 2020-06-30 13F DTE ENERGY COM 233331107 100 -680 -87.18 11 -85.14 0.0013
2020-05-14 2020-03-31 13F DTE ENERGY COM 233331107 780 780 74 0.0108
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.