- Quarter end
- 31 Dec 2025
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 23 Jan 2026
- Managers listing it
- 32
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 10 listed it in both
- Shares listed
- 18,297,887
- combined, among listed positions
- Reported value
- $924m
- combined, at the quarter end
Among the 92 comparable managers: 20 buyers (opened or added shares) and 17 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +755,376.
Managers listing MP in Q4 2025
32 of 32 holders
Largest increases and reductions, by shares
Increases
- Squarepoint Ops LLCexisting position · 1,811,242 shares now+1,558,425
- Susquehanna International Group LLPexisting position · 1,721,355 shares now+1,401,452
- D. E. Shaw & Co.new position · 602,251 shares now+602,251
- Voloridge Investment Management LLCexisting position · 1,605,494 shares now+589,738
- Rokos Capital Management LLPnew position · 550,206 shares now+550,206
Reductions
- T. Rowe Price Associates Incexisting position · 1,742,675 shares now-1,723,438
- Marshall Wace LLPexisting position · 154,891 shares now-516,281
- Fidelity (FMR LLC)existing position · 1,387,296 shares now-392,049
- Man Group PLCexisting position · 477,919 shares now-285,100
- Baillie Gifford & Coexisting position · 717,292 shares now-237,312
New positions and exits
New (4)
Exited (5)
- Renaissance Technologies LLCwas $94m
- ExodusPoint Capital Management LPwas $10m
- Citadel Advisors LLCwas $4.7m
- Arrowstreet Capital LPwas $3.2m
- Hudson Bay Capital Management LPwas $549k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2020 | 3 | $79m | n.a. | n.a. |
| Q1 2021 | 2 | $22m | n.a. | n.a. |
| Q2 2021 | 3 | $38m | n.a. | n.a. |
| Q3 2021 | 6 | $71m | n.a. | n.a. |
| Q4 2021 | 8 | $194m | n.a. | n.a. |
| Q1 2022 | 9 | $273m | n.a. | n.a. |
| Q2 2022 | 5 | $181m | n.a. | n.a. |
| Q3 2022 | 5 | $186m | n.a. | n.a. |
| Q4 2022 | 4 | $106m | n.a. | n.a. |
| Q1 2023 | 4 | $187m | n.a. | n.a. |
| Q2 2023 | 4 | $107m | n.a. | n.a. |
| Q3 2023 | 4 | $104m | n.a. | n.a. |
| Q4 2023 | 3 | $106m | 1 | 3 |
| Q1 2024 | 5 | $60m | 4 | 1 |
| Q2 2024 | 3 | $41m | 1 | 3 |
| Q3 2024 | 4 | $62m | 2 | 2 |
| Q4 2024 | 2 | $25m | 0 | 2 |
| Q1 2025 | 5 | $92m | 4 | 1 |
| Q2 2025 | 7 | $375m | 7 | 0 |
| Q3 2025 | 12 | $669m | 7 | 5 |
| Q4 2025 | 13 | $360m | 20 | 17 |
| Q1 2026 | 10 | $322m | 11 | 21 |
| Q2 2026 | 8 | $692m | 12 | 18 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
MP and LIN →MP and GLW →MP and HWM →Choose a stock to compare with MP →
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 MP, latest filings →Back to the 13F Explorer →