Rubric Capital Management LP: TRANSALTA CORP (TAC): Quarterly 13F Position History
As of Q1 2026, Rubric Capital Management LP reported 17,781,325 shares of TRANSALTA CORP (TAC), worth $232.9M and representing 2.9% of its 13F equity book. The position first appeared in Q1 2021 and has been disclosed across 21 13F-HR filings in Pactolio's tracked window.
- 17,781,325Shares Held (Latest Filing)
- $232.9MReported Market Value (Latest Filing)
- 2.9%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- +$8.2MQuarter-over-Quarter Value Change
- 17,781,325Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 21 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 17,781,325 | 0 | — | $232.9M | 2.9% | $13.1 |
| Q4 2025 | 17,781,325 | +1,832,874 | +11.5% | $224.8M | 2.7% | $12.6 |
| Q3 2025 | 15,948,451 | 0 | — | $218.0M | 2.9% | $13.7 |
| Q2 2025 | 15,948,451 | +3,948,451 | +32.9% | $172.1M | 2.8% | $10.8 |
| Q1 2025 | 12,000,000 | +4,387,337 | +57.6% | $112.2M | 2.0% | $9.3 |
| Q4 2024 | 7,612,663 | +1,989,702 | +35.4% | $107.7M | 2.0% | $14.2 |
| Q3 2024 | 5,622,961 | +935,803 | +20.0% | $58.3M | 1.0% | $10.4 |
| Q2 2024 | 4,687,158 | 0 | — | $33.2M | 0.9% | $7.1 |
| Q1 2024 | 4,687,158 | 458,472 | -8.9% | $30.1M | 0.9% | $6.4 |
| Q4 2023 | 5,145,630 | +740,786 | +16.8% | $42.8M | 1.6% | $8.3 |
| Q3 2023 | 4,404,844 | +978,354 | +28.6% | $38.3M | 1.6% | $8.7 |
| Q2 2023 | 3,426,490 | 2,359,073 | -40.8% | $32.1M | 1.4% | $9.4 |
| Q1 2023 | 5,785,563 | 390,152 | -6.3% | $50.6M | 2.0% | $8.8 |
| Q4 2022 | 6,175,715 | +986,653 | +19.0% | $55.4M | 2.4% | $9.0 |
| Q3 2022 | 5,189,062 | 0 | — | $45.8M | 2.3% | $8.8 |
| Q2 2022 | 5,189,062 | 0 | — | $53.8M | 2.5% | $10.4 |
| Q1 2022 | 5,189,062 | 0 | — | $53.8M | 2.5% | $10.4 |
| Q4 2021 | 5,189,062 | 0 | — | $57.7M | 2.7% | $11.1 |
| Q3 2021 | 5,189,062 | 0 | — | $54.8M | 3.2% | $10.6 |
| Q2 2021 | 5,189,062 | +652,693 | +14.4% | $51.7M | 3.3% | $10.0 |
| Q1 2021 | 4,536,369 | — | — | $43.0M | 2.6% | $9.5 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did Rubric Capital Management LP first disclose a TAC position in 13F-HR filings?
Rubric Capital Management LP first reported TRANSALTA CORP (TAC) on its 13F-HR filing for the period ending 2021-03-31 (Q1 2021). The position has appeared on 21 reported quarters within Pactolio's tracked window.
What was Rubric Capital Management LP's most recent quarter-over-quarter share-count change in TAC?
Rubric Capital Management LP held the same 17,781,325 shares of TAC between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent Rubric Capital Management LP's cost basis in TAC?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.