TransAlta Corporation
DE ˙ DB ˙ CA89346D1078
12,48 € ↑0,42 (3,44%)
2026-06-03
AKTIENPREIS
SecurityDE:TZ1 / TransAlta Corporation
InstitutionState Street Corp
Latest Disclosed Ownership1,189,366 shares
Latest Disclosed Value $ 15,627,834
State Street Corp reports 0.51% increase in ownership of TZ1 / TransAlta Corporation

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 1,189,366 shares of TransAlta Corporation (DE:TZ1) valued at $13,071,132 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,183,363 shares of TransAlta Corporation. This represents a change in shares of 0.51% during the quarter. The current value of the position is $14,843,288 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.

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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)
2026-05-15 2026-03-31 13F TRANSALTA COM 89346D107 1,189,366 6,003 0.51 15,628 4.13 0.0005
2026-02-13 2025-12-31 13F TRANSALTA COM 89346D107 1,183,363 -52,485 -4.25 15,007 -11.43 0.0005
2025-11-14 2025-09-30 13F TRANSALTA COM 89346D107 1,235,848 -12,980 -1.04 16,943 25.56 0.0006
2025-08-14 2025-06-30 13F TRANSALTA COM 89346D107 1,248,828 757,941 154.40 13,494 192.90 0.0005
2025-05-15 2025-03-31 13F TRANSALTA COM 89346D107 490,887 -22,320 -4.35 4,607 -36.86 0.0002
2025-02-14 2024-12-31 13F TRANSALTA COM 89346D107 513,207 -471,400 -47.88 7,296 -28.78 0.0003
2024-11-14 2024-09-30 13F TRANSALTA COM 89346D107 984,607 -23,698 -2.35 10,245 43.27 0.0004
2024-08-14 2024-06-30 13F TRANSALTA COM 89346D107 1,008,305 732,199 265.19 7,151 300.11 0.0003
2024-05-15 2024-03-31 13F TRANSALTA COM 89346D107 276,106 -30,833 -10.05 1,788 -30.17 0.0001
2024-02-14 2023-12-31 13F TRANSALTA COM 89346D107 306,939 36,329 13.42 2,559 8.20 0.0001
2023-11-14 2023-09-30 13F TRANSALTA COM 89346D107 270,610 -8,982 -3.21 2,366 -10.65 0.0001
2023-08-14 2023-06-30 13F TRANSALTA COM 89346D107 279,592 -439,398 -61.11 2,647 -58.12 0.0001
2023-05-15 2023-03-31 13F TRANSALTA COM 89346D107 718,990 22,158 3.18 6,320 0.72 0.0004
2023-05-15 2022-12-31 13F/A-99 TRANSALTA COM 89346D107 696,832 99,512 16.66 6,276 18.49 0.0004
2023-05-15 2022-12-31 13F TRANSALTA COM 89346D107 696,832 99,512 6,276 0.0004
2022-11-15 2022-09-30 13F TRANSALTA COM 89346D107 597,320 32,388 5.73 5,296 -17.90 0.0003
2022-08-15 2022-06-30 13F TRANSALTA COM 89346D107 564,932 297,814 111.49 6,451 132.22 0.0004
2022-05-16 2022-03-31 13F TRANSALTA COM 89346D107 267,118 -22,847 -7.88 2,778 -14.15 0.0001
2022-02-14 2021-12-31 13F TRANSALTA COM 89346D107 289,965 1,072 0.37 3,236 5.72 0.0002
2021-11-15 2021-09-30 13F TRANSALTA COM 89346D107 288,893 769 0.27 3,061 6.47 0.0002
2021-08-16 2021-06-30 13F TRANSALTA COM 89346D107 288,124 -154,944 -34.97 2,875 4.97 0.0002
2020-11-10 2020-09-30 13F TRANSALTA COM 89346D107 443,068 23,484 5.60 2,739 10.09 0.0002
2020-08-14 2020-06-30 13F TRANSALTA COM 89346D107 419,584 408,360 3,638.28 2,488 3,308.22 0.0002
2019-11-14 2019-09-30 13F TRANSALTA COM 89346D107 11,224 11,224 73 0.0000
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.