TransAlta Corporation
DE ˙ DB ˙ CA89346D1078
11,79 € ↓ -0,69 (-5,53%)
2026-06-04
PREZZO DELLE AZIONI
SecurityDE:TZ1 / TransAlta Corporation
InstitutionShell Asset Management Co
Latest Disclosed Ownership4,200 shares
Latest Disclosed Value $ 57
Shell Asset Management Co reports 74.21% decrease in ownership of TZ1 / TransAlta Corporation

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 4,200 shares of TransAlta Corporation (DE:TZ1) valued at $48,489 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 16,284 shares of TransAlta Corporation. The current value of the position is $49,518 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2025-11-07 2025-09-30 13F TRANSALTA COM 89346D107 4,200 -12,084 -74.21 0 0.0057
2025-07-23 2025-06-30 13F TRANSALTA COM 89346D107 16,284 500 3.17 0 0.0060
2025-05-14 2025-03-31 13F TRANSALTA COM 89346D107 15,784 900 6.05 0 0.0070
2025-02-14 2024-12-31 13F TRANSALTA COM 89346D107 14,884 0 0.00 0 0.0092
2024-11-07 2024-09-30 13F TRANSALTA COM 89346D107 14,884 0 0.00 0 0.0068
2024-07-25 2024-03-31 13F TRANSALTA COM 89346D107 14,884 -2,800 -15.83 0 0.0048
2024-02-14 2023-12-31 13F TRANSALTA COM 89346D107 17,684 -700 -3.81 0 0.0068
2023-11-08 2023-09-30 13F TRANSALTA COM 89346D107 18,384 0 0.00 0 0.0067
2023-07-28 2023-06-30 13F TRANSALTA COM 89346D107 18,384 -900 -4.67 0 0.0068
2023-05-15 2023-03-31 13F TRANSALTA COM 89346D107 19,284 0 0.00 0 0.0070
2023-02-07 2022-12-31 13F TRANSALTA COM 89346D107 19,284 -2,600 -11.88 0 -100.00 0.0075
2022-11-14 2022-09-30 13F TRANSALTA COM 89346D107 21,884 -4,400 -16.74 194 -35.12 0.0076
2022-08-09 2022-06-30 13F TRANSALTA COM 89346D107 26,284 -3,000 -10.24 299 -1.32 0.0088
2022-05-04 2022-03-31 13F TRANSALTA COM 89346D107 29,284 0 0.00 303 -7.06 0.0072
2022-02-09 2021-12-31 13F TRANSALTA COM 89346D107 29,284 4,900 20.10 326 26.36 0.0067
2021-11-04 2021-09-30 13F TRANSALTA COM 89346D107 24,384 -1,016 -4.00 258 1.98 0.0058
2021-08-12 2021-06-30 13F TRANSALTA COM 89346D107 25,400 0 0.00 253 5.42 0.0049
2021-05-10 2021-03-31 13F TRANSALTA COM 89346D107 25,400 1,200 4.96 240 30.43 0.0048
2021-02-16 2020-12-31 13F TRANSALTA COM 89346D107 24,200 19,800 450.00 184 581.48 0.0038
2020-11-13 2020-09-30 13F TRANSALTA COM 89346D107 4,400 0 0.00 27 3.85 0.0006
2020-08-10 2020-06-30 13F TRANSALTA COM 89346D107 4,400 -9,200 -67.65 26 -62.86 0.0006
2020-05-11 2020-03-31 13F TRANSALTA COM 89346D107 13,600 0 0.00 70 -27.84 0.0020
2020-02-13 2019-12-31 13F TRANSALTA COM 89346D107 13,600 -10,349 -43.21 97 -37.82 0.0021
2019-11-12 2019-09-30 13F TRANSALTA COM 89346D107 23,949 0 0.00 156 0.00 0.0036
2019-08-12 2019-06-30 13F TRANSALTA COM 89346D107 23,949 -651 -2.65 156 -13.81 0.0035
2019-05-09 2019-03-31 13F TRANSALTA COM 89346D107 24,600 3,300 15.49 181 108.05 0.0040
2019-02-13 2018-12-31 13F TRANSALTA COM 89346D107 21,300 -8,500 -28.52 87 -48.21 0.0022
2018-11-13 2018-09-30 13F TRANSALTA COM 89346D107 29,800 1,900 6.81 168 20.00 0.0033
2018-08-10 2018-06-30 13F TRANSALTA COM 89346D107 27,900 0 0.00 140 -7.28 0.0029
2018-05-14 2018-03-31 13F TRANSALTA COM 89346D107 27,900 100 0.36 151 -8.48 0.0030
2018-02-09 2017-12-31 13F TRANSALTA COM 89346D107 27,800 0 0.00 165 -18.72 0.0033
2017-10-20 2017-09-30 13F/A-1 TRANSALTA COM 89346D107 27,800 0 0.00 203 -11.74 0.0045
2017-10-18 2017-09-30 13F TRANSALTA COM 89346D107 71,101 43,301 835
2017-07-26 2017-06-30 13F TRANSALTA COM 89346D107 27,800 0 0.00 230 5.99 0.0057
2017-04-26 2017-03-31 13F TRANSALTA COM 89346D107 27,800 3,200 13.01 217 18.58 0.0055
2017-01-10 2016-12-31 13F TRANSALTA COM 89346D107 24,600 2,300 10.31 183 40.77 0.0049
2016-10-28 2016-09-30 13F TRANSALTA COM 89346D107 22,300 -2,100 -8.61 130 -20.73 0.0031
2016-07-25 2016-06-30 13F TRANSALTA COM 89346D107 24,400 4,800 24.49 164 37.82 0.0038
2016-05-11 2016-03-31 13F TRANSALTA COM 89346D107 19,600 -1,100 -5.31 119 16.67 0.0028
2016-02-05 2015-12-31 13F TRANSALTA COM 89346D107 20,700 -50,401 -70.89 102 -87.78 0.0024
2015-10-13 2015-09-30 13F TRANSALTA COM 89346D107 71,101 27,087 61.54 835 96.01 0.0132
2015-07-30 2015-06-30 13F TRANSALTA COM 89346D107 44,014 -8,111 -15.56 426 -30.39 0.0085
2015-05-07 2015-03-31 13F TRANSALTA COM 89346D107 52,125 52,125 0.00 612 0.0107
2015-02-04 2014-12-31 13F TRANSALTA COM 89346D107 0 -71,101 -100.00 0 -100.00
2014-10-24 2014-09-30 13F TRANSALTA COM 89346D107 71,101 0 0.00 835 -10.22 0.0130
2014-08-08 2014-06-30 13F TRANSALTA COM 89346D107 71,101 -7,771 -9.85 930 -8.19 0.0143
2014-05-07 2014-03-31 13F TRANSALTA COM 89346D107 78,872 8,172 11.56 1,013 6.30 0.0168
2014-02-03 2013-12-31 13F/A-1 TRANSALTA COM 89346D107 70,700 -8,892 -11.17 953 -10.52 0.0162
2014-01-27 2013-12-31 13F TRANSALTA COM 89346D107 70,700 953
2013-10-28 2013-09-30 13F TRANSALTA COM 89346D107 79,592 -2,317 -2.83 1,065 -9.75 0.0196
2013-08-01 2013-06-30 13F TRANSALTA COM 89346D107 81,909 81,909 1,180 0.0225
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.