- Quarter end
- 31 Dec 2025
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 22 Jan 2026
- Managers listing it
- 29
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 17 listed it in both
- Shares listed
- 37,737,457
- combined, among listed positions
- Reported value
- $11.7bn
- combined, at the quarter end
Among the 92 comparable managers: 13 buyers (opened or added shares) and 22 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +3,602,392.
Managers listing MAR in Q4 2025
29 of 29 holders
Largest increases and reductions, by shares
Increases
- Invesco Ltdexisting position · 10,469,185 shares now+6,147,330
- T. Rowe Price Associates Incexisting position · 1,879,028 shares now+219,579
- Fidelity (FMR LLC)existing position · 6,719,325 shares now+208,965
- Neuberger Berman Group LLCexisting position · 489,712 shares now+162,621
- Arrowstreet Capital LPexisting position · 997,271 shares now+150,531
Reductions
- AllianceBernstein LPexisting position · 673,376 shares now-980,004
- Wellington Management Group LLPexisting position · 8,576,175 shares now-599,202
- Citadel Advisors LLCexisting position · 1,699,017 shares now-215,297
- D. E. Shaw & Co.existing position · 17,247 shares now-192,942
- MFS Investment Managementexisting position · 4,732,764 shares now-189,003
New positions and exits
New (2)
Exited (6)
- Capital World Investorswas $168m
- Winton Group Ltdwas $1.7m
- Caxton Associates LLPwas $1.5m
- Brevan Howard Capital Management LPwas $1.0m
- Tudor Investment Corpwas $779k
- Two Sigma Advisers LPwas $313k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 14 | $1.6bn | n.a. | n.a. |
| Q3 2013 | 13 | $1.7bn | n.a. | n.a. |
| Q4 2013 | 10 | $2.1bn | n.a. | n.a. |
| Q1 2014 | 11 | $2.8bn | n.a. | n.a. |
| Q2 2014 | 11 | $3.1bn | n.a. | n.a. |
| Q3 2014 | 13 | $2.7bn | n.a. | n.a. |
| Q4 2014 | 11 | $2.2bn | n.a. | n.a. |
| Q1 2015 | 12 | $2.1bn | n.a. | n.a. |
| Q2 2015 | 10 | $1.9bn | n.a. | n.a. |
| Q3 2015 | 15 | $2.3bn | n.a. | n.a. |
| Q4 2015 | 19 | $2.9bn | n.a. | n.a. |
| Q1 2016 | 18 | $3.0bn | n.a. | n.a. |
| Q2 2016 | 20 | $3.2bn | n.a. | n.a. |
| Q3 2016 | 25 | $4.2bn | n.a. | n.a. |
| Q4 2016 | 23 | $5.6bn | n.a. | n.a. |
| Q1 2017 | 19 | $6.8bn | n.a. | n.a. |
| Q2 2017 | 23 | $7.4bn | n.a. | n.a. |
| Q3 2017 | 18 | $8.2bn | n.a. | n.a. |
| Q4 2017 | 23 | $9.0bn | n.a. | n.a. |
| Q1 2018 | 25 | $8.6bn | n.a. | n.a. |
| Q2 2018 | 27 | $7.6bn | n.a. | n.a. |
| Q3 2018 | 15 | $8.7bn | n.a. | n.a. |
| Q4 2018 | 16 | $7.1bn | n.a. | n.a. |
| Q1 2019 | 12 | $8.8bn | n.a. | n.a. |
| Q2 2019 | 17 | $10.1bn | n.a. | n.a. |
| Q3 2019 | 26 | $7.7bn | n.a. | n.a. |
| Q4 2019 | 21 | $9.1bn | n.a. | n.a. |
| Q1 2020 | 17 | $4.6bn | n.a. | n.a. |
| Q2 2020 | 18 | $4.4bn | n.a. | n.a. |
| Q3 2020 | 21 | $4.4bn | n.a. | n.a. |
| Q4 2020 | 15 | $6.8bn | n.a. | n.a. |
| Q1 2021 | 13 | $6.8bn | n.a. | n.a. |
| Q2 2021 | 13 | $5.8bn | n.a. | n.a. |
| Q3 2021 | 14 | $6.7bn | n.a. | n.a. |
| Q4 2021 | 15 | $7.3bn | n.a. | n.a. |
| Q1 2022 | 23 | $7.7bn | n.a. | n.a. |
| Q2 2022 | 24 | $6.0bn | n.a. | n.a. |
| Q3 2022 | 24 | $5.8bn | n.a. | n.a. |
| Q4 2022 | 27 | $5.4bn | n.a. | n.a. |
| Q1 2023 | 22 | $5.8bn | n.a. | n.a. |
| Q2 2023 | 22 | $6.1bn | n.a. | n.a. |
| Q3 2023 | 21 | $6.4bn | n.a. | n.a. |
| Q4 2023 | 20 | $6.7bn | 8 | 12 |
| Q1 2024 | 17 | $6.8bn | 6 | 12 |
| Q2 2024 | 27 | $7.0bn | 22 | 5 |
| Q3 2024 | 28 | $7.3bn | 17 | 13 |
| Q4 2024 | 24 | $8.2bn | 15 | 9 |
| Q1 2025 | 26 | $7.7bn | 17 | 10 |
| Q2 2025 | 20 | $8.7bn | 9 | 12 |
| Q3 2025 | 21 | $8.6bn | 12 | 10 |
| Q4 2025 | 16 | $11.5bn | 13 | 22 |
| Q1 2026 | 22 | $11.3bn | 20 | 15 |
| Q2 2026 | 16 | $11.3bn | 12 | 22 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
MAR and AMZN →MAR and TSLA →MAR and HD →Choose a stock to compare with MAR →
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 MAR, latest filings →Back to the 13F Explorer →