- 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
- 10
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q2 2025 and Q3 2025; 7 listed it in both
- Shares listed
- 9,939,706
- combined, among listed positions
- Reported value
- $908m
- combined, at the quarter end
Among the 95 comparable managers: 6 buyers (opened or added shares) and 4 sellers (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 MMS in Q3 2025
10 of 10 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Fidelity (FMR LLC) | 8,452,024 | $772m | under 0.1% | Added | +173 | 13 Nov 2025 (the filing on sec.gov) |
| Janus Henderson Group Ltd | 523,598 | $48m | under 0.1% | Trimmed | -6,539 | 14 Nov 2025 (the filing on sec.gov) |
| Point72 Asset Management LP | 324,103 | $30m | under 0.1% | Trimmed | -437,127 | 14 Nov 2025 (the filing on sec.gov) |
| Walleye Capital LLC | 201,012 | $18m | 0.07% | Added | +38,657 | 14 Nov 2025 (the filing on sec.gov) |
| Voloridge Investment Management LLC | 136,807 | $13m | under 0.1% | Added | n.a. | 14 Nov 2025 (the filing on sec.gov) |
| Woodline Partners LP | 121,432 | $11m | 0.05% | Trimmed | -73,067 | 14 Nov 2025 (the filing on sec.gov) |
| Winton Group Ltd | 67,945 | $6.2m | 0.23% | New | new | 13 Nov 2025 (the filing on sec.gov) |
| Holocene Advisors LP | 59,698 | $5.5m | under 0.1% | Added | +11,039 | 14 Nov 2025 (the filing on sec.gov) |
| Quantbot Technologies LP | 26,855 | $2.5m | 0.07% | Trimmed | -17,008 | 12 Nov 2025 (the filing on sec.gov) |
| Brevan Howard Capital Management LP | 26,232 | $2.4m | under 0.1% | Added | n.a. | 14 Nov 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Winton Group Ltdnew position · 67,945 shares now+67,945
- Walleye Capital LLCexisting position · 201,012 shares now+38,657
- Holocene Advisors LPexisting position · 59,698 shares now+11,039
- Fidelity (FMR LLC)existing position · 8,452,024 shares now+173
Reductions
- Point72 Asset Management LPexisting position · 324,103 shares now-437,127
- Woodline Partners LPexisting position · 121,432 shares now-73,067
- Quantbot Technologies LPexisting position · 26,855 shares now-17,008
- Janus Henderson Group Ltdexisting position · 523,598 shares now-6,539
New positions and exits
New (1)
- Winton Group Ltd$6.2m
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 |
|---|---|---|---|---|
| Q2 2013 | 4 | $433m | n.a. | n.a. |
| Q3 2013 | 2 | $160m | n.a. | n.a. |
| Q4 2013 | 3 | $165m | n.a. | n.a. |
| Q1 2014 | 3 | $184m | n.a. | n.a. |
| Q2 2014 | 2 | $110m | n.a. | n.a. |
| Q3 2014 | 1 | $91m | n.a. | n.a. |
| Q4 2014 | 4 | $146m | n.a. | n.a. |
| Q1 2015 | 4 | $623m | n.a. | n.a. |
| Q2 2015 | 4 | $533m | n.a. | n.a. |
| Q3 2015 | 3 | $449m | n.a. | n.a. |
| Q4 2015 | 5 | $401m | n.a. | n.a. |
| Q1 2016 | 4 | $55m | n.a. | n.a. |
| Q2 2016 | 1 | $14m | n.a. | n.a. |
| Q3 2016 | 2 | $312m | n.a. | n.a. |
| Q4 2016 | 1 | $11m | n.a. | n.a. |
| Q1 2017 | 1 | $17m | n.a. | n.a. |
| Q2 2017 | 1 | $139m | n.a. | n.a. |
| Q3 2017 | 2 | $142m | n.a. | n.a. |
| Q4 2017 | 3 | $179m | n.a. | n.a. |
| Q1 2018 | 6 | $257m | n.a. | n.a. |
| Q2 2018 | 6 | $191m | n.a. | n.a. |
| Q3 2018 | 6 | $166m | n.a. | n.a. |
| Q4 2018 | 6 | $253m | n.a. | n.a. |
| Q1 2019 | 7 | $252m | n.a. | n.a. |
| Q2 2019 | 8 | $141m | n.a. | n.a. |
| Q3 2019 | 9 | $250m | n.a. | n.a. |
| Q4 2019 | 5 | $174m | n.a. | n.a. |
| Q1 2020 | 8 | $176m | n.a. | n.a. |
| Q2 2020 | 9 | $260m | n.a. | n.a. |
| Q3 2020 | 5 | $301m | n.a. | n.a. |
| Q4 2020 | 5 | $287m | n.a. | n.a. |
| Q1 2021 | 3 | $342m | n.a. | n.a. |
| Q2 2021 | 4 | $371m | n.a. | n.a. |
| Q3 2021 | 3 | $369m | n.a. | n.a. |
| Q4 2021 | 6 | $402m | n.a. | n.a. |
| Q1 2022 | 5 | $345m | n.a. | n.a. |
| Q2 2022 | 4 | $269m | n.a. | n.a. |
| Q3 2022 | 7 | $276m | n.a. | n.a. |
| Q4 2022 | 6 | $358m | n.a. | n.a. |
| Q1 2023 | 5 | $854m | n.a. | n.a. |
| Q2 2023 | 4 | $1.1bn | n.a. | n.a. |
| Q3 2023 | 4 | $949m | n.a. | n.a. |
| Q4 2023 | 6 | $1.1bn | 4 | 2 |
| Q1 2024 | 4 | $961m | 2 | 2 |
| Q2 2024 | 4 | $977m | 1 | 3 |
| Q3 2024 | 6 | $1.1bn | 4 | 2 |
| Q4 2024 | 7 | $788m | 5 | 1 |
| Q1 2025 | 9 | $804m | 6 | 3 |
| Q2 2025 | 8 | $786m | 4 | 4 |
| Q3 2025 | 10 | $908m | 6 | 4 |
| Q4 2025 | 7 | $870m | 11 | 22 |
| Q1 2026 | 3 | $563m | 12 | 16 |
| Q2 2026 | 5 | $44m | 18 | 9 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
MMS and V →MMS and MA →MMS and MCO →Choose a stock to compare with MMS →
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 MMS, latest filings →Back to the 13F Explorer →