Ticker · CUSIP 29089Q105
Holders (tracked)
10
Combined shares
2,881,412
Combined value
$35.61M
Last close
$8.81
Quarter
2025Q4
Price · 1Y$8.81+4.19 (+90.69%)H $13.90 · L $4.54 · Avg Vol 1.1M
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is -28.7% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−107,632 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+402,050 shares · 2025Q4Position
- Two Sigma Investments trimmed2026-02-17−2,831 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+159,850 shares · 2025Q4Position
- T. Rowe Price trimmed2026-02-17−1,458 shares · 2025Q4Position
- Wellington Management trimmed2026-02-17−15,462 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−108,217 shares · 2025Q4Position
- Renaissance Technologies added2026-02-12+58,900 shares · 2025Q4Position
- AQR Capital Management opened position2025-11-14+586,246 shares · 2025Q3Position
- Two Sigma Investments trimmed2025-11-14−92,338 shares · 2025Q3Position
- Wellington Management added2025-11-14+10,935 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−677,608 shares · 2025Q3Position
- D.E. Shaw & Co. trimmed2025-11-14−90,201 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+1,614 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−171,400 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of EBS…
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 | 2016Q1 | $5.49 | +60.5% | $4.2M |
| Renaissance Technologies | 2016Q1 | $8.43 | +4.6% | $5.1M |
| Two Sigma Investments | 2016Q1 | $8.43 | +4.5% | $2.3M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $10.42 | -15.4% | $2.1M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $11.12 | -20.8% | $827K |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $11.12 | -20.8% | $827K |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $11.12 | -20.8% | $827K |
| T. Rowe Price | 2016Q3 | $14.97 | -41.1% | $343K |
| D.E. Shaw & Co. | 2016Q1 | $16.96 | -48.1% | $6.4M |
| Wellington Management | 2016Q1 | $29.76 | -70.4% | $1.5M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to3
- D.E. Shaw & Co.+402,050$5.0M
- Izzy Englander (Millennium Mgmt)+159,850$2.0M
- Renaissance Technologies+58,900$728K
Trimmed5
- AQR Capital Management−108,217$1.3M
- Ken Griffin (Citadel Advisors)−107,632$1.3M
- Wellington Management−15,462$191K
- Two Sigma Investments−2,831$35K
- T. Rowe Price−1,458$18
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 14 | $18.21B |
| 2022Q2 | 13 | $11.17B |
| 2022Q3 | 12 | $237.8M |
| 2022Q4 | 11 | $145.6M |
| 2023Q1 | 10 | $128.6M |
| 2023Q2 | 9 | $95.8M |
| 2023Q3 | 11 | $53.2M |
| 2023Q4 | 10 | $33.1M |
| 2024Q1 | 9 | $28.1M |
| 2024Q2 | 10 | $49.8M |
| 2024Q3 | 9 | $27.3M |
| 2024Q4 | 8 | $35.6M |
| 2025Q1 | 9 | $21.8M |
| 2025Q2 | 9 | $18.0M |
| 2025Q3 | 10 | $21.9M |
| 2025Q4 | 10 | $35.6M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2024-12-11 | Steve Cohen | Sell | $1K – $15K | PDF ↗ |
Who owns EBS
10 super-investors · 2025Q4
Tracked stake
2.88M
shares
Combined value
$36M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added3Trim7
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | D.E. Shaw & Co. | 723.2K | $9M |
| 2 | Renaissance Technologies | 577.1K | $7M |
| 3 | AQR Capital Management | 478.0K | $6M |
| 4 | Two Sigma Investments | 258.5K | $3M |
| 5 | Izzy Englander Millennium Mgmt | 237.7K | $3M |
| 6 | Ken Griffin Citadel Advisors | 232.0K | $3M |
| 7 | Wellington Management | 168.6K | $2M |
| 8 | Ken Griffin Citadel Advisors | 93.9K | $1M |
| 9 | Ken Griffin Citadel Advisors | 73.3K | $906K |
| 10 | T. Rowe Price | 39.0K | $482K |
Recent moves
20 transactions
- −107,632 · 2025Q4
- −15,462 · 2025Q4
- TRIMT. Rowe Price−1,458 · 2025Q4
- +402,050 · 2025Q4
- −108,217 · 2025Q4
- +159,850 · 2025Q4
- −2,831 · 2025Q4
- +58,900 · 2025Q4
- +10,935 · 2025Q3
- −92,338 · 2025Q3
- −677,608 · 2025Q3
- +1,614 · 2025Q3
- +586,246 · 2025Q3
- TRIMD.E. Shaw & Co.−90,201 · 2025Q3
- −171,400 · 2025Q3
- −43,131 · 2025Q2
- +139,094 · 2025Q2
- −1,747,056 · 2025Q2
- +27,027 · 2025Q2
- +30,204 · 2025Q2
Embed this chart
Paste this iframe anywhere to embed the live EBS chart.
<iframe src="https://openstocks.me/embed/stock/EBS" width="100%" height="480" frameborder="0" loading="lazy" title="EBS chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>