- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 26
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 4 listed it in both
- Shares listed
- 23,084,410
- combined, among listed positions
- Reported value
- $607m
- 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: 17 buyers (opened or added shares) and 12 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -947,719.
Managers listing MTG in Q1 2026
26 of 26 holders
Largest increases and reductions, by shares
Increases
- D. E. Shaw & Co.existing position · 890,430 shares now+612,074
- Squarepoint Ops LLCexisting position · 946,251 shares now+541,048
- Two Sigma Investments LPexisting position · 480,647 shares now+463,185
- Citadel Advisors LLCexisting position · 1,246,269 shares now+295,524
- Tudor Investment Corpexisting position · 1,349,651 shares now+236,444
Reductions
- Jane Street Group LLCexisting position · 812,438 shares now-927,439
- AQR Capital Management LLCexisting position · 10,988,162 shares now-628,120
- AllianceBernstein LPexisting position · 334,053 shares now-542,975
- Acadian Asset Management LLCexisting position · 37,709 shares now-513,465
- Millennium Management LLCexisting position · 278,470 shares now-198,567
New positions and exits
New (5)
Exited (4)
- First Eagle Investment Management LLCwas $12m
- Arrowstreet Capital LPwas $2.7m
- Bridgewater Associates LPwas $937k
- Verition Fund Management LLCwas $228k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 6 | $277m | n.a. | n.a. |
| Q3 2013 | 7 | $276m | n.a. | n.a. |
| Q4 2013 | 7 | $364m | n.a. | n.a. |
| Q1 2014 | 9 | $430m | n.a. | n.a. |
| Q2 2014 | 10 | $481m | n.a. | n.a. |
| Q3 2014 | 9 | $447m | n.a. | n.a. |
| Q4 2014 | 11 | $496m | n.a. | n.a. |
| Q1 2015 | 8 | $694m | n.a. | n.a. |
| Q2 2015 | 8 | $704m | n.a. | n.a. |
| Q3 2015 | 11 | $464m | n.a. | n.a. |
| Q4 2015 | 8 | $417m | n.a. | n.a. |
| Q1 2016 | 5 | $265m | n.a. | n.a. |
| Q2 2016 | 8 | $262m | n.a. | n.a. |
| Q3 2016 | 10 | $432m | n.a. | n.a. |
| Q4 2016 | 10 | $588m | n.a. | n.a. |
| Q1 2017 | 12 | $568m | n.a. | n.a. |
| Q2 2017 | 11 | $529m | n.a. | n.a. |
| Q3 2017 | 10 | $628m | n.a. | n.a. |
| Q4 2017 | 10 | $710m | n.a. | n.a. |
| Q1 2018 | 11 | $711m | n.a. | n.a. |
| Q2 2018 | 10 | $564m | n.a. | n.a. |
| Q3 2018 | 11 | $729m | n.a. | n.a. |
| Q4 2018 | 9 | $435m | n.a. | n.a. |
| Q1 2019 | 11 | $593m | n.a. | n.a. |
| Q2 2019 | 17 | $719m | n.a. | n.a. |
| Q3 2019 | 15 | $689m | n.a. | n.a. |
| Q4 2019 | 13 | $642m | n.a. | n.a. |
| Q1 2020 | 8 | $192m | n.a. | n.a. |
| Q2 2020 | 15 | $261m | n.a. | n.a. |
| Q3 2020 | 11 | $332m | n.a. | n.a. |
| Q4 2020 | 7 | $475m | n.a. | n.a. |
| Q1 2021 | 7 | $527m | n.a. | n.a. |
| Q2 2021 | 9 | $548m | n.a. | n.a. |
| Q3 2021 | 7 | $610m | n.a. | n.a. |
| Q4 2021 | 8 | $598m | n.a. | n.a. |
| Q1 2022 | 11 | $476m | n.a. | n.a. |
| Q2 2022 | 10 | $380m | n.a. | n.a. |
| Q3 2022 | 10 | $344m | n.a. | n.a. |
| Q4 2022 | 11 | $357m | n.a. | n.a. |
| Q1 2023 | 9 | $317m | n.a. | n.a. |
| Q2 2023 | 8 | $364m | n.a. | n.a. |
| Q3 2023 | 10 | $348m | n.a. | n.a. |
| Q4 2023 | 11 | $376m | 3 | 8 |
| Q1 2024 | 7 | $364m | 3 | 5 |
| Q2 2024 | 9 | $324m | 7 | 2 |
| Q3 2024 | 9 | $390m | 4 | 5 |
| Q4 2024 | 8 | $300m | 1 | 7 |
| Q1 2025 | 10 | $235m | 8 | 2 |
| Q2 2025 | 6 | $320m | 3 | 4 |
| Q3 2025 | 6 | $312m | 3 | 3 |
| Q4 2025 | 5 | $406m | 13 | 16 |
| Q1 2026 | 7 | $333m | 17 | 12 |
| Q2 2026 | 7 | $343m | 15 | 13 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
MTG and V →MTG and AXP →MTG and BAC →Choose a stock to compare with MTG →
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 MTG, latest filings →Back to the 13F Explorer →