- 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
- 35
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 24 listed it in both
- Shares listed
- 32,862,665
- combined, among listed positions
- Reported value
- $10.3bn
- 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: 16 buyers (opened or added shares) and 21 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +888,615.
Managers listing COR in Q1 2026
35 of 35 holders
Largest increases and reductions, by shares
Increases
- Fidelity (FMR LLC)existing position · 6,686,269 shares now+1,226,632
- Citadel Advisors LLCexisting position · 797,827 shares now+745,272
- T. Rowe Price Associates Incexisting position · 7,323,706 shares now+330,881
- Point72 Asset Management LPexisting position · 394,336 shares now+217,270
- Walleye Capital LLCexisting position · 162,400 shares now+158,260
Reductions
- Capital Research Global Investorsexisting position · 1,959,650 shares now-789,927
- D. E. Shaw & Co.existing position · 95,465 shares now-263,666
- Arrowstreet Capital LPexisting position · 1,042,002 shares now-205,966
- AQR Capital Management LLCexisting position · 423,036 shares now-153,326
- MFS Investment Managementexisting position · 452,448 shares now-115,671
New positions and exits
New (2)
- Tudor Investment Corp$7.2m
- Winton Group Ltd$3.1m
Exited (4)
- Marshall Wace LLPwas $52m
- Renaissance Technologies LLCwas $41m
- PDT Partners LLCwas $3.9m
- Verition Fund Management LLCwas $1.9m
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 →