- Quarter end
- 30 Jun 2026
- the date the book describes
- Filed
- 2 Sep 2026
- latest of these filings; the earliest 3 Aug 2026
- Managers listing it
- 23
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q1 2026 and Q2 2026; 1 listed it in both
- Shares listed
- 5,441,275
- combined, among listed positions
- Reported value
- $74m
- 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: 15 buyers (opened or added shares) and 11 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +375,440.
Managers listing MTRX in Q2 2026
23 of 23 holders
Largest increases and reductions, by shares
Increases
- Acadian Asset Management LLCexisting position · 871,501 shares now+395,412
- D. E. Shaw & Co.existing position · 287,612 shares now+218,071
- Man Group PLCexisting position · 194,010 shares now+155,189
- First Eagle Investment Management LLCexisting position · 990,217 shares now+139,408
- Two Sigma Investments LPexisting position · 748,118 shares now+110,427
Reductions
- Millennium Management LLCexisting position · 135,823 shares now-340,588
- Jane Street Group LLCexisting position · 106,381 shares now-206,794
- Marshall Wace LLPexisting position · 223,310 shares now-89,986
- ExodusPoint Capital Management LPexisting position · 10,938 shares now-52,779
- Citadel Advisors LLCexisting position · 426,023 shares now-46,024
New positions and exits
New (2)
Exited (3)
- Arrowstreet Capital LPwas $1.7m
- Quantbot Technologies LPwas $413k
- Susquehanna International Group LLPwas $207k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q1 2014 | 3 | $6.1m | n.a. | n.a. |
| Q2 2014 | 2 | $863k | n.a. | n.a. |
| Q4 2015 | 1 | $3.3m | n.a. | n.a. |
| Q3 2018 | 1 | $3.2m | n.a. | n.a. |
| Q4 2018 | 3 | $3.8m | n.a. | n.a. |
| Q1 2019 | 1 | $360k | n.a. | n.a. |
| Q2 2019 | 2 | $1.1m | n.a. | n.a. |
| Q3 2019 | 2 | $1.5m | n.a. | n.a. |
| Q2 2020 | 1 | $285k | n.a. | n.a. |
| Q3 2020 | 1 | $600k | n.a. | n.a. |
| Q4 2020 | 1 | $867k | n.a. | n.a. |
| Q1 2022 | 1 | $273k | n.a. | n.a. |
| Q2 2022 | 1 | $168k | n.a. | n.a. |
| Q3 2022 | 1 | $100k | n.a. | n.a. |
| Q4 2022 | 1 | $151k | n.a. | n.a. |
| Q1 2023 | 1 | $87k | n.a. | n.a. |
| Q2 2023 | 1 | $88k | n.a. | n.a. |
| Q3 2023 | 1 | $4.3m | n.a. | n.a. |
| Q1 2024 | 2 | $6.0m | 2 | 0 |
| Q4 2024 | 1 | $960k | 1 | 0 |
| Q1 2025 | 1 | $3.9m | 1 | 0 |
| Q2 2025 | 2 | $7.7m | 2 | 0 |
| Q3 2025 | 2 | $8.7m | 2 | 0 |
| Q4 2025 | 2 | $8.5m | 17 | 7 |
| Q1 2026 | 1 | $9.8m | 15 | 9 |
| Q2 2026 | 1 | $14m | 15 | 11 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
MTRX and KLAC →MTRX and GE →MTRX and LRCX →Choose a stock to compare with MTRX →
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 MTRX, latest filings →Back to the 13F Explorer →