- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 18 May 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 16
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 1 listed it in both
- Shares listed
- 1,383,514
- combined, among listed positions
- Reported value
- $37m
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 8 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -981,443.
Managers listing MMI in Q1 2026
16 of 16 holders
Largest increases and reductions, by shares
Increases
- Two Sigma Investments LPexisting position · 424,337 shares now+210,780
- AQR Capital Management LLCexisting position · 182,083 shares now+126,567
- Invesco Ltdexisting position · 82,892 shares now+9,438
- Susquehanna International Group LLPnew position · 8,368 shares now+8,368
- Winton Group Ltdexisting position · 45,767 shares now+6,648
Reductions
- Citadel Advisors LLCexisting position · 32,072 shares now-329,614
- Point72 Asset Management LPexisting position · 45,972 shares now-131,213
- Tudor Investment Corpexisting position · 100,428 shares now-128,985
- Millennium Management LLCexisting position · 9,150 shares now-58,238
- Renaissance Technologies LLCexisting position · 219,700 shares now-40,500
New positions and exits
Exited (8)
- Jane Street Group LLCwas $7.4m
- Marshall Wace LLPwas $5.3m
- ExodusPoint Capital Management LPwas $1.4m
- Squarepoint Ops LLCwas $1.2m
- PDT Partners LLCwas $752k
- Quantbot Technologies LPwas $741k
- Balyasny Asset Management LLCwas $473k
- Schonfeld Strategic Advisors LLCwas $221k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q3 2015 | 1 | $1.3m | n.a. | n.a. |
| Q1 2018 | 4 | $19m | n.a. | n.a. |
| Q2 2018 | 2 | $19m | n.a. | n.a. |
| Q4 2018 | 2 | $7.8m | n.a. | n.a. |
| Q3 2019 | 1 | $975k | n.a. | n.a. |
| Q4 2019 | 1 | $10m | n.a. | n.a. |
| Q1 2020 | 1 | $6.6m | n.a. | n.a. |
| Q2 2020 | 1 | $4.7m | n.a. | n.a. |
| Q1 2021 | 1 | $984k | n.a. | n.a. |
| Q2 2021 | 1 | $884k | n.a. | n.a. |
| Q3 2021 | 1 | $941k | n.a. | n.a. |
| Q4 2021 | 1 | $1.2m | n.a. | n.a. |
| Q1 2022 | 1 | $1.1m | n.a. | n.a. |
| Q2 2022 | 1 | $337k | n.a. | n.a. |
| Q3 2022 | 1 | $258k | n.a. | n.a. |
| Q3 2023 | 1 | $394k | n.a. | n.a. |
| Q4 2023 | 1 | $531k | 0 | 1 |
| Q1 2024 | 2 | $1.8m | 2 | 0 |
| Q2 2024 | 1 | $916k | 1 | 0 |
| Q3 2024 | 1 | $1.2m | 1 | 0 |
| Q4 2024 | 1 | $1.1m | 1 | 0 |
| Q1 2025 | 1 | $1.1m | 1 | 0 |
| Q2 2025 | 1 | $945k | 1 | 0 |
| Q3 2025 | 2 | $1.7m | 2 | 0 |
| Q4 2025 | 2 | $1.8m | 17 | 8 |
| Q1 2026 | 1 | $1.2m | 8 | 14 |
| Q2 2026 | 1 | $2.5m | 13 | 5 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
MMI and WELL →MMI and EQIX →MMI and BN →Choose a stock to compare with MMI →
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 MMI, latest filings →Back to the 13F Explorer →