- Quarter end
- 31 Dec 2025
- the date the book describes
- Filed
- 17 Feb 2026
- latest of these filings; the earliest 12 Feb 2026
- Managers listing it
- 6
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 1 listed it in both
- Shares listed
- 4,937,641
- combined, among listed positions
- Reported value
- $1.2bn
- combined, at the quarter end
Among the 92 comparable managers: 6 buyers (opened or added shares) and 1 seller (trimmed or exited), at least, among listed positions. Their net change in shares was +793,973.
Managers listing MTUM in Q4 2025
6 of 6 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Fidelity (FMR LLC) | 4,757,272 | $1.2bn | 0.06% | Added | +694,166 | 17 Feb 2026 (the filing on sec.gov) |
| Jane Street Group LLC | 91,681 | $23m | under 0.1% | Added | +51,216 | 12 Feb 2026 (the filing on sec.gov) |
| Susquehanna International Group LLP | 28,898 | $7.2m | under 0.1% | Added | +23,413 | 17 Feb 2026 (the filing on sec.gov) |
| AQR Capital Management LLC | 28,163 | $7.0m | under 0.1% | Added | +8,611 | 17 Feb 2026 (the filing on sec.gov) |
| Citadel Advisors LLC | 25,947 | $6.5m | under 0.1% | New | new | 17 Feb 2026 (the filing on sec.gov) |
| AllianceBernstein LP | 5,680 | $1.4m | under 0.1% | Added | +2,168 | 17 Feb 2026 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Fidelity (FMR LLC)existing position · 4,757,272 shares now+694,166
- Jane Street Group LLCexisting position · 91,681 shares now+51,216
- Citadel Advisors LLCnew position · 25,947 shares now+25,947
- Susquehanna International Group LLPexisting position · 28,898 shares now+23,413
- AQR Capital Management LLCexisting position · 28,163 shares now+8,611
Reductions
No reduction among listed positions.
New positions and exits
New (1)
- Citadel Advisors LLC$6.5m
Exited (1)
- Tudor Investment Corpwas $3.0m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2015 | 1 | $11m | n.a. | n.a. |
| Q1 2016 | 1 | $11m | n.a. | n.a. |
| Q3 2016 | 1 | $2.5m | n.a. | n.a. |
| Q4 2016 | 1 | $4.3m | n.a. | n.a. |
| Q1 2017 | 1 | $2.6m | n.a. | n.a. |
| Q2 2019 | 1 | $37m | n.a. | n.a. |
| Q3 2019 | 1 | $39m | n.a. | n.a. |
| Q4 2019 | 1 | $20m | n.a. | n.a. |
| Q1 2021 | 1 | $10m | n.a. | n.a. |
| Q2 2022 | 2 | $380m | n.a. | n.a. |
| Q3 2022 | 1 | $463m | n.a. | n.a. |
| Q4 2022 | 2 | $625m | n.a. | n.a. |
| Q3 2023 | 2 | $30m | n.a. | n.a. |
| Q2 2024 | 1 | $31m | 1 | 0 |
| Q1 2025 | 2 | $584m | 2 | 0 |
| Q2 2025 | 4 | $861m | 4 | 0 |
| Q3 2025 | 1 | $1.0bn | 1 | 1 |
| Q4 2025 | 1 | $1.2bn | 6 | 1 |
| Q1 2026 | 1 | $1.3bn | 6 | 3 |
| Q2 2026 | 1 | $2.0bn | 7 | 4 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
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 MTUM, latest filings →Back to the 13F Explorer →