- Quarter end
- 30 Jun 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 3 Aug 2026
- Managers listing it
- 30
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q1 2026 and Q2 2026; 6 listed it in both
- Shares listed
- 22,495,387
- combined, among listed positions
- Reported value
- $701m
- 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 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -6,648,505.
Managers listing CSTM in Q2 2026
30 of 30 holders
Largest increases and reductions, by shares
Increases
- Marshall Wace LLPexisting position · 1,093,740 shares now+1,079,965
- Acadian Asset Management LLCexisting position · 2,107,513 shares now+834,642
- AQR Capital Management LLCexisting position · 2,402,937 shares now+328,076
- Man Group PLCexisting position · 359,310 shares now+238,673
- Neuberger Berman Group LLCnew position · 237,315 shares now+237,315
Reductions
- Fidelity (FMR LLC)existing position · 2,194,722 shares now-4,767,046
- Millennium Management LLCexisting position · 1,956,365 shares now-1,513,726
- D. E. Shaw & Co.existing position · 2,198,618 shares now-1,035,958
- Jane Street Group LLCexisting position · 153,549 shares now-678,942
- Arrowstreet Capital LPexisting position · 2,844,747 shares now-383,280
New positions and exits
New (3)
Exited (1)
- Verition Fund Management LLCwas $722k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2019 | 5 | $135m | n.a. | n.a. |
| Q1 2020 | 5 | $55m | n.a. | n.a. |
| Q2 2020 | 4 | $82m | n.a. | n.a. |
| Q3 2020 | 4 | $102m | n.a. | n.a. |
| Q4 2020 | 4 | $409m | n.a. | n.a. |
| Q1 2021 | 6 | $472m | n.a. | n.a. |
| Q2 2021 | 4 | $623m | n.a. | n.a. |
| Q3 2021 | 5 | $582m | n.a. | n.a. |
| Q4 2021 | 4 | $594m | n.a. | n.a. |
| Q1 2022 | 6 | $587m | n.a. | n.a. |
| Q2 2022 | 7 | $408m | n.a. | n.a. |
| Q3 2022 | 5 | $150m | n.a. | n.a. |
| Q4 2022 | 4 | $178m | n.a. | n.a. |
| Q1 2023 | 4 | $226m | n.a. | n.a. |
| Q2 2023 | 4 | $256m | n.a. | n.a. |
| Q3 2023 | 5 | $254m | n.a. | n.a. |
| Q4 2023 | 2 | $209m | 2 | 1 |
| Q1 2024 | 3 | $241m | 2 | 1 |
| Q2 2024 | 4 | $167m | 3 | 1 |
| Q3 2024 | 4 | $121m | 4 | 2 |
| Q4 2024 | 5 | $98m | 5 | 1 |
| Q1 2025 | 3 | $29m | 2 | 1 |
| Q2 2025 | 3 | $48m | 3 | 0 |
| Q3 2025 | 3 | $115m | 2 | 1 |
| Q4 2025 | 3 | $142m | 14 | 16 |
| Q1 2026 | 6 | $215m | 17 | 12 |
| Q2 2026 | 6 | $215m | 16 | 15 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
CSTM and LIN →CSTM and GLW →CSTM and HWM →Choose a stock to compare with CSTM →
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 CSTM, latest filings →Back to the 13F Explorer →