Ticker · CUSIP 300426103
Holders (tracked)
13
Combined shares
1,371,897
Combined value
$117.38M
Last close
$128.81
Quarter
2025Q4
Price · 1Y$128.81+89.96 (+231.56%)H $135.77 · L $35.74 · Avg Vol 562K
Position opened
Tracked holders · last 8 quarters
+5 vs previous quarter over the last 5.
Price is +50.5% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
20 events
- +107,810 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) added2026-02-17+130,013 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+28,969 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−10,635 shares · 2025Q4Position
- Two Sigma Investments opened position2026-02-17+10,200 shares · 2025Q4Position
- Steve Cohen (Point72) added2026-02-17+37,542 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+2,021 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+397,268 shares · 2025Q4Position
- +8,028 shares · 2025Q4Position
- Renaissance Technologies added2026-02-12+37,700 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+15,707 shares · 2025Q4Position
- Mario Gabelli (GAMCO) trimmed2026-02-05−27,247 shares · 2025Q4Position
- D.E. Shaw & Co. added2025-11-14+5,784 shares · 2025Q3Position
- AQR Capital Management trimmed2025-11-14−39,900 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−56,551 shares · 2025Q3Position
- Steve Cohen (Point72) opened position2025-11-14+42,762 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+3,393 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−8,300 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−82,085 shares · 2025Q3Position
- Mario Gabelli (GAMCO) trimmed2025-11-12−17,383 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ECG…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| AQR Capital Management | 2024Q4 | $51.49 | +150.1% | $4.3M |
| Mario Gabelli (GAMCO) | 2024Q4 | $63.64 | +102.4% | $6.1M |
| Norges Bank (Norway SWF) | 2024Q4 | $65.75 | +95.9% | $2.0M |
| Two Sigma Investments | 2024Q4 | $65.75 | +95.9% | $1.3M |
| T. Rowe Price | 2024Q4 | $65.98 | +95.2% | $5.4M |
| Steve Cohen (Point72) | 2024Q4 | $75.01 | +71.7% | $10.3M |
| Izzy Englander (Millennium Mgmt) | 2024Q4 | $75.19 | +71.3% | $82.7M |
| Renaissance Technologies | 2025Q1 | $80.29 | +60.4% | $5.7M |
| D.E. Shaw & Co. | 2025Q2 | $80.49 | +60.0% | $5.8M |
| Ken Griffin (Citadel Advisors) | 2024Q4 | $85.00 | +51.5% | $36.9M |
| Ken Griffin (Citadel Advisors) | 2024Q4 | $85.00 | +51.5% | $36.9M |
| Paul Tudor Jones (Tudor Investment) | 2025Q4 | $85.56 | +50.5% | $13.9M |
| Ray Dalio (Bridgewater Associates) | 2025Q4 | $85.56 | +50.5% | $1.0M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions4
- Paul Tudor Jones (Tudor Investment)+107,810$9.2M
- Norges Bank (Norway SWF)+15,707$1.3M
- Two Sigma Investments+10,200$873K
- Ray Dalio (Bridgewater Associates)+8,028$687K
Added to6
- Izzy Englander (Millennium Mgmt)+397,268$34.0M
- Ken Griffin (Citadel Advisors)+130,013$11.1M
- Renaissance Technologies+37,700$3.2M
- Steve Cohen (Point72)+37,542$3.2M
- D.E. Shaw & Co.+28,969$2.5M
- T. Rowe Price+2,021$173
Trimmed2
- Mario Gabelli (GAMCO)−27,247$2.3M
- AQR Capital Management−10,635$910K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2024Q4 | 8 | $78.1M |
| 2025Q1 | 5 | $20.0M |
| 2025Q2 | 8 | $48.5M |
| 2025Q3 | 8 | $53.6M |
| 2025Q4 | 13 | $117.4M |
Who owns ECG
13 super-investors · 2025Q4
Tracked stake
1.37M
shares
Combined value
$117M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added7Trim2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Izzy Englander Millennium Mgmt | 642.3K | $55M |
| 2 | Ken Griffin Citadel Advisors | 286.8K | $25M |
| 3 | Paul Tudor Jones Tudor Investment | 107.8K | $9M |
| 4 | Steve Cohen Point72 | 80.3K | $7M |
| 5 | Mario Gabelli GAMCO | 47.5K | $4M |
| 6 | D.E. Shaw & Co. | 45.2K | $4M |
| 7 | Renaissance Technologies | 44.4K | $4M |
| 8 | T. Rowe Price | 41.8K | $4M |
| 9 | AQR Capital Management | 33.3K | $3M |
| 10 | Norges Bank Norway SWF | 15.7K | $1M |
| 11 | Two Sigma Investments | 10.2K | $873K |
| 12 | Ken Griffin Citadel Advisors | 8.6K | $736K |
| 13 | Ray Dalio Bridgewater Associates | 8.0K | $687K |
Recent moves
20 transactions
- +10,200 · 2025Q4
- −10,635 · 2025Q4
- +397,268 · 2025Q4
- +107,810 · 2025Q4
- +28,969 · 2025Q4
- +2,021 · 2025Q4
- +130,013 · 2025Q4
- +37,542 · 2025Q4
- +8,028 · 2025Q4
- +37,700 · 2025Q4
- +15,707 · 2025Q4
- −27,247 · 2025Q4
- −56,551 · 2025Q3
- −39,900 · 2025Q3
- +5,784 · 2025Q3
- +3,393 · 2025Q3
- +42,762 · 2025Q3
- −82,085 · 2025Q3
- −8,300 · 2025Q3
- −17,383 · 2025Q3
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