- Quarter end
- 30 Jun 2025
- the date the book describes
- Filed
- 14 Aug 2025
- latest of these filings; the earliest 13 Aug 2025
- Managers listing it
- 7
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q1 2025 and Q2 2025; 3 listed it in both
- Shares listed
- 9,363,050
- combined, among listed positions
- Reported value
- $71m
- combined, at the quarter end
Among the 95 comparable managers: 6 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 CLF in Q2 2025
7 of 7 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Marshall Wace LLP | 4,572,662 | $35m | under 0.1% | Trimmed | -1,180,071 | 13 Aug 2025 (the filing on sec.gov) |
| Woodline Partners LP | 2,761,463 | $21m | 0.11% | Added | +352 | 14 Aug 2025 (the filing on sec.gov) |
| Quantbot Technologies LP | 794,437 | $6.0m | 0.15% | Added | +317,352 | 13 Aug 2025 (the filing on sec.gov) |
| Brevan Howard Capital Management LP | 651,001 | $4.9m | under 0.1% | Added | n.a. | 14 Aug 2025 (the filing on sec.gov) |
| Holocene Advisors LP | 383,374 | $2.9m | under 0.1% | New | new | 14 Aug 2025 (the filing on sec.gov) |
| Freestone Grove Partners LP | 106,071 | $806k | under 0.1% | New | new | 14 Aug 2025 (the filing on sec.gov) |
| PDT Partners LLC | 94,042 | $715k | under 0.1% | New | new | 14 Aug 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Holocene Advisors LPnew position · 383,374 shares now+383,374
- Quantbot Technologies LPexisting position · 794,437 shares now+317,352
- Freestone Grove Partners LPnew position · 106,071 shares now+106,071
- PDT Partners LLCnew position · 94,042 shares now+94,042
- Woodline Partners LPexisting position · 2,761,463 shares now+352
Reductions
- Marshall Wace LLPexisting position · 4,572,662 shares now-1,180,071
New positions and exits
New (3)
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 |
|---|---|---|---|---|
| Q3 2017 | 1 | $20m | n.a. | n.a. |
| Q4 2017 | 3 | $80m | n.a. | n.a. |
| Q1 2018 | 4 | $113m | n.a. | n.a. |
| Q2 2018 | 2 | $18m | n.a. | n.a. |
| Q3 2018 | 4 | $109m | n.a. | n.a. |
| Q4 2018 | 4 | $35m | n.a. | n.a. |
| Q1 2019 | 7 | $88m | n.a. | n.a. |
| Q2 2019 | 5 | $82m | n.a. | n.a. |
| Q3 2019 | 6 | $85m | n.a. | n.a. |
| Q4 2019 | 5 | $44m | n.a. | n.a. |
| Q1 2020 | 3 | $5.5m | n.a. | n.a. |
| Q2 2020 | 2 | $1.4m | n.a. | n.a. |
| Q3 2020 | 1 | $1.4m | n.a. | n.a. |
| Q4 2020 | 6 | $179m | n.a. | n.a. |
| Q1 2021 | 11 | $816m | n.a. | n.a. |
| Q2 2021 | 7 | $1.1bn | n.a. | n.a. |
| Q3 2021 | 4 | $844m | n.a. | n.a. |
| Q4 2021 | 8 | $970m | n.a. | n.a. |
| Q1 2022 | 17 | $2.0bn | n.a. | n.a. |
| Q2 2022 | 5 | $166m | n.a. | n.a. |
| Q3 2022 | 7 | $219m | n.a. | n.a. |
| Q4 2022 | 9 | $219m | n.a. | n.a. |
| Q1 2023 | 10 | $281m | n.a. | n.a. |
| Q2 2023 | 9 | $204m | n.a. | n.a. |
| Q3 2023 | 11 | $324m | n.a. | n.a. |
| Q4 2023 | 11 | $463m | 8 | 6 |
| Q1 2024 | 9 | $473m | 7 | 2 |
| Q2 2024 | 11 | $254m | 8 | 5 |
| Q3 2024 | 6 | $232m | 5 | 5 |
| Q4 2024 | 3 | $44m | 2 | 0 |
| Q1 2025 | 3 | $74m | 3 | 0 |
| Q2 2025 | 7 | $71m | 6 | 1 |
| Q3 2025 | 9 | $307m | 7 | 1 |
| Q4 2025 | 15 | $829m | 22 | 10 |
| Q1 2026 | 12 | $405m | 17 | 13 |
| Q2 2026 | 5 | $326m | 12 | 17 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
CLF and LIN →CLF and GLW →CLF and HWM →Choose a stock to compare with CLF →
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 CLF, latest filings →Back to the 13F Explorer →