- 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
- 28
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 3 listed it in both
- Shares listed
- 4,488,480
- combined, among listed positions
- Reported value
- $507m
- 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 16 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +294,235.
Managers listing ECG in Q1 2026
28 of 28 holders
Largest increases and reductions, by shares
Increases
- Capital World Investorsnew position · 614,312 shares now+614,312
- D. E. Shaw & Co.existing position · 421,706 shares now+376,492
- AQR Capital Management LLCexisting position · 232,410 shares now+199,103
- Voloridge Investment Management LLCnew position · 136,144 shares now+136,144
- Renaissance Technologies LLCexisting position · 148,400 shares now+104,000
Reductions
- Invesco Ltdexisting position · 956,606 shares now-276,008
- Citadel Advisors LLCexisting position · 59,430 shares now-227,321
- AllianceBernstein LPexisting position · 676,599 shares now-158,944
- Jane Street Group LLCexisting position · 72,199 shares now-138,585
- Millennium Management LLCexisting position · 565,489 shares now-76,761
New positions and exits
New (4)
Exited (5)
- ExodusPoint Capital Management LPwas $7.8m
- Walleye Capital LLCwas $7.1m
- Squarepoint Ops LLCwas $1.8m
- Two Sigma Investments LPwas $873k
- Bridgewater Associates LPwas $687k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2024 | 2 | $23m | 2 | 0 |
| Q1 2025 | 1 | $5.8m | 1 | 1 |
| Q2 2025 | 4 | $102m | 3 | 1 |
| Q3 2025 | 4 | $120m | 1 | 3 |
| Q4 2025 | 4 | $25m | 21 | 11 |
| Q1 2026 | 4 | $107m | 16 | 16 |
| Q2 2026 | 5 | $238m | 14 | 19 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
ECG and KLAC →ECG and GE →ECG and LRCX →Choose a stock to compare with ECG →
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 ECG, latest filings →Back to the 13F Explorer →