- 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
- 38
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 26 listed it in both
- Shares listed
- 31,994,270
- combined, among listed positions
- Reported value
- $10.8bn
- combined, at the quarter end
Among the 92 comparable managers: 18 buyers (opened or added shares) and 22 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -4,117,454.
Managers listing COR in Q4 2025
38 of 38 holders
Largest increases and reductions, by shares
Increases
- Fidelity (FMR LLC)existing position · 5,459,637 shares now+2,148,227
- Wellington Management Group LLPexisting position · 4,535,992 shares now+564,871
- Arrowstreet Capital LPexisting position · 1,247,968 shares now+229,291
- D. E. Shaw & Co.existing position · 359,131 shares now+128,769
- Renaissance Technologies LLCexisting position · 121,940 shares now+94,340
Reductions
- Marshall Wace LLPexisting position · 155,300 shares now-1,839,818
- Citadel Advisors LLCexisting position · 52,555 shares now-1,185,912
- T. Rowe Price Associates Incexisting position · 6,992,825 shares now-731,075
- Millennium Management LLCexisting position · 374,384 shares now-611,540
- AQR Capital Management LLCexisting position · 576,362 shares now-226,330
New positions and exits
New (3)
Exited (3)
- Viking Global Investors LPwas $556m
- Voloridge Investment Management LLCwas $57m
- Schonfeld Strategic Advisors LLCwas $404k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 14 | $997m | n.a. | n.a. |
| Q3 2013 | 13 | $1.2bn | n.a. | n.a. |
| Q4 2013 | 10 | $1.1bn | n.a. | n.a. |
| Q1 2014 | 10 | $701m | n.a. | n.a. |
| Q2 2014 | 9 | $1.2bn | n.a. | n.a. |
| Q3 2014 | 12 | $1.4bn | n.a. | n.a. |
| Q4 2014 | 17 | $2.1bn | n.a. | n.a. |
| Q1 2015 | 14 | $2.5bn | n.a. | n.a. |
| Q2 2015 | 20 | $2.4bn | n.a. | n.a. |
| Q3 2015 | 15 | $2.2bn | n.a. | n.a. |
| Q4 2015 | 16 | $1.9bn | n.a. | n.a. |
| Q1 2016 | 14 | $798m | n.a. | n.a. |
| Q2 2016 | 19 | $1.0bn | n.a. | n.a. |
| Q3 2016 | 16 | $797m | n.a. | n.a. |
| Q4 2016 | 13 | $791m | n.a. | n.a. |
| Q1 2017 | 9 | $713m | n.a. | n.a. |
| Q2 2017 | 9 | $814m | n.a. | n.a. |
| Q3 2017 | 10 | $862m | n.a. | n.a. |
| Q4 2017 | 14 | $1.0bn | n.a. | n.a. |
| Q1 2018 | 19 | $1.1bn | n.a. | n.a. |
| Q2 2018 | 19 | $1.5bn | n.a. | n.a. |
| Q3 2018 | 13 | $1.4bn | n.a. | n.a. |
| Q4 2018 | 18 | $1.2bn | n.a. | n.a. |
| Q1 2019 | 16 | $1.4bn | n.a. | n.a. |
| Q2 2019 | 17 | $1.5bn | n.a. | n.a. |
| Q3 2019 | 19 | $1.1bn | n.a. | n.a. |
| Q4 2019 | 14 | $1.2bn | n.a. | n.a. |
| Q1 2020 | 17 | $1.3bn | n.a. | n.a. |
| Q2 2020 | 14 | $1.1bn | n.a. | n.a. |
| Q3 2020 | 16 | $594m | n.a. | n.a. |
| Q4 2020 | 17 | $686m | n.a. | n.a. |
| Q1 2021 | 18 | $1.6bn | n.a. | n.a. |
| Q2 2021 | 19 | $1.5bn | n.a. | n.a. |
| Q3 2021 | 16 | $1.8bn | n.a. | n.a. |
| Q4 2021 | 18 | $2.1bn | n.a. | n.a. |
| Q1 2022 | 18 | $2.6bn | n.a. | n.a. |
| Q2 2022 | 22 | $2.5bn | n.a. | n.a. |
| Q3 2022 | 22 | $2.1bn | n.a. | n.a. |
| Q4 2022 | 27 | $4.0bn | n.a. | n.a. |
| Q1 2023 | 20 | $4.1bn | n.a. | n.a. |
| Q2 2023 | 23 | $5.3bn | n.a. | n.a. |
| Q3 2023 | 30 | $5.8bn | n.a. | n.a. |
| Q4 2023 | 28 | $6.8bn | 17 | 13 |
| Q1 2024 | 34 | $9.3bn | 27 | 6 |
| Q2 2024 | 32 | $8.8bn | 15 | 21 |
| Q3 2024 | 28 | $8.4bn | 13 | 15 |
| Q4 2024 | 29 | $7.4bn | 14 | 15 |
| Q1 2025 | 32 | $10.8bn | 17 | 16 |
| Q2 2025 | 32 | $11.2bn | 16 | 15 |
| Q3 2025 | 28 | $11.2bn | 8 | 19 |
| Q4 2025 | 27 | $10.7bn | 18 | 22 |
| Q1 2026 | 24 | $10.3bn | 16 | 21 |
| Q2 2026 | 26 | $8.2bn | 21 | 20 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
COR and UNH →COR and ELV →COR and CI →Choose a stock to compare with COR →
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 COR, latest filings →Back to the 13F Explorer →