TransAlta Corporation
US ˙ NYSE ˙ CA89346D1078

SecurityTAC / TransAlta Corporation
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership359 shares
Latest Disclosed Value $ 4,538
Parallel Advisors, LLC ownership in TAC / TransAlta Corporation

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 359 shares of TransAlta Corporation (US:TAC) valued at $4,538 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 359 shares of TransAlta Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $5,191 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)
2026-02-11 2025-12-31 13F TRANSALTA CORP COM Stock 89346D107 359 0 0.00 5 0.00 0.0001
2025-11-13 2025-09-30 13F TRANSALTA CORP COM Stock 89346D107 359 0 0.00 5 33.33 0.0001
2025-07-08 2025-06-30 13F TRANSALTA CORP COM Stock 89346D107 359 -394 -52.32 4 -57.14 0.0001
2025-04-08 2025-03-31 13F TRANSALTA CORP COM Stock 89346D107 753 128 20.48 7 -12.50 0.0002
2025-02-10 2024-12-31 13F TRANSALTA CORP COM Stock 89346D107 625 0 0.00 9 33.33 0.0002
2024-11-13 2024-09-30 13F TRANSALTA CORP COM Stock 89346D107 625 124 24.75 6 100.00 0.0002
2024-08-08 2024-06-30 13F TRANSALTA CORP COM Stock 89346D107 501 116 30.13 4 50.00 0.0001
2024-05-06 2024-03-31 13F TRANSALTA CORP COM Stock 89346D107 385 385 2 0.0001
2024-02-12 2023-12-31 13F TRANSALTA CORP COM Stock 89346D107 0 -198 -100.00 0 -100.00
2024-05-20 2023-09-30 13F/A-1 TRANSALTA CORP COM Stock 89346D107 198 0 0.00 2 0.00 0.0001
2023-11-14 2023-09-30 13F TRANSALTA CORP COM Stock 89346D107 198 0 2 0.0001
2024-05-20 2023-06-30 13F/A-1 TRANSALTA CORP COM Stock 89346D107 198 124 167.57 2 0.0001
2023-08-04 2023-06-30 13F TRANSALTA CORP COM Stock 89346D107 198 124 2 0.0001
2024-05-20 2023-03-31 13F/A-1 TRANSALTA CORP COM Stock 89346D107 74 -687 -90.28 1 -100.00 0.0000
2023-04-25 2023-03-31 13F TRANSALTA CORP COM Stock 89346D107 74 -687 1 0.0000
2023-02-06 2022-12-31 13F TRANSALTA CORP COM Stock 89346D107 761 738 3,208.70 7 0.0003
2022-11-10 2022-09-30 13F TRANSALTA CORP COM Stock 89346D107 23 -1,585 -98.57 0 -100.00
2022-08-01 2022-06-30 13F TRANSALTA CORP COM Stock 89346D107 1,608 1,608 18 0.0008
2022-04-28 2022-03-31 13F TRANSALTA CORP COM Stock 89346D107 0 -169 -100.00 0 -100.00
2022-01-20 2021-12-31 13F TRANSALTA CORP COM Stock 89346D107 169 169 2 0.0001
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.