TAC in the 13F filings
Transalta Corp · CUSIP 89346D107
- Quarter end
- 30 Sep 2025
- the date the book describes
- Filed
- 14 Nov 2025
- latest of these filings; the earliest 12 Nov 2025
- Managers listing it
- 4
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q2 2025 and Q3 2025; 4 listed it in both
- Shares listed
- 22,306,883
- combined, among listed positions
- Reported value
- $305m
- combined, at the quarter end
Among the 95 comparable managers: 3 buyers (opened or added shares) and 1 seller (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing TAC in Q3 2025
4 of 4 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Millennium Management LLC | 13,115,689 | $179m | 0.08% | Trimmed | -5,107,704 | 14 Nov 2025 (the filing on sec.gov) |
| Oaktree Capital Management LP | 6,415,253 | $88m | 1.35% | Added | +330,000 | 13 Nov 2025 (the filing on sec.gov) |
| Rokos Capital Management LLP | 2,760,467 | $38m | 0.16% | Added | +1,992,232 | 14 Nov 2025 (the filing on sec.gov) |
| First Eagle Investment Management LLC | 15,474 | $211k | under 0.1% | Added | +124 | 12 Nov 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Rokos Capital Management LLPexisting position · 2,760,467 shares now+1,992,232
- Oaktree Capital Management LPexisting position · 6,415,253 shares now+330,000
- First Eagle Investment Management LLCexisting position · 15,474 shares now+124
Reductions
- Millennium Management LLCexisting position · 13,115,689 shares now-5,107,704
New positions and exits
New (0)
No new position among listed positions.
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2015 | 1 | $355k | n.a. | n.a. |
| Q4 2016 | 1 | $458k | n.a. | n.a. |
| Q1 2017 | 2 | $7.8m | n.a. | n.a. |
| Q2 2017 | 1 | $527k | n.a. | n.a. |
| Q3 2017 | 1 | $482k | n.a. | n.a. |
| Q4 2017 | 1 | $323k | n.a. | n.a. |
| Q1 2018 | 1 | $413k | n.a. | n.a. |
| Q2 2018 | 1 | $577k | n.a. | n.a. |
| Q3 2018 | 2 | $7.3m | n.a. | n.a. |
| Q4 2018 | 1 | $549k | n.a. | n.a. |
| Q1 2019 | 2 | $14m | n.a. | n.a. |
| Q2 2019 | 1 | $14m | n.a. | n.a. |
| Q3 2019 | 1 | $16m | n.a. | n.a. |
| Q1 2020 | 4 | $26m | n.a. | n.a. |
| Q2 2020 | 1 | $4.8m | n.a. | n.a. |
| Q3 2020 | 1 | $9.8m | n.a. | n.a. |
| Q4 2020 | 2 | $8.8m | n.a. | n.a. |
| Q1 2021 | 2 | $11m | n.a. | n.a. |
| Q2 2021 | 2 | $46m | n.a. | n.a. |
| Q4 2021 | 1 | $1.5m | n.a. | n.a. |
| Q1 2022 | 1 | $11m | n.a. | n.a. |
| Q2 2022 | 2 | $23m | n.a. | n.a. |
| Q3 2022 | 3 | $40m | n.a. | n.a. |
| Q4 2022 | 2 | $21m | n.a. | n.a. |
| Q1 2023 | 1 | $4.8m | n.a. | n.a. |
| Q2 2023 | 2 | $9.5m | n.a. | n.a. |
| Q3 2023 | 2 | $6.6m | n.a. | n.a. |
| Q3 2024 | 2 | $53m | 1 | 1 |
| Q4 2024 | 7 | $163m | 6 | 1 |
| Q1 2025 | 6 | $219m | 5 | 2 |
| Q2 2025 | 6 | $275m | 3 | 1 |
| Q3 2025 | 4 | $305m | 3 | 1 |
| Q4 2025 | 5 | $244m | 10 | 13 |
| Q1 2026 | 5 | $251m | 12 | 9 |
| Q2 2026 | 5 | $216m | 6 | 18 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
TAC and SO →TAC and D →TAC and NEE →Choose a stock to compare with TAC →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own TAC, latest filings →Back to the 13F Explorer →