Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 20-F filed 2026-03-30, as of 2025-12-31)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | ELBM · NASDAQ | 103,738,330 | 16,243,036 | 15.7% | 29 | 28474P706 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (29 of 29 · 28474P706)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | WHITEBOX ADVISORS LLC | 6,892,107 | 6.64% | $4.2M | -1,307,992 (-16.0%) |
| 2 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | 6,209,511 | 5.99% | $3.7M | -1,633,236 (-20.8%) |
| 3 | PEAK6 LLC | 1,249,080 | 1.20% | $754K | — |
| 4 | Diametric Capital, LP | 516,559 | 0.50% | $316K | +262,145 (+103.0%) |
| 5 | JANE STREET GROUP, LLC | 314,398 | 0.30% | $190K | +63,992 (+25.6%) |
| 6 | Rathbones Group PLC | 250,171 | 0.24% | $153K | -250,171 (-50.0%) |
| 7 | JPMORGAN CHASE & CO | 185,919 | 0.18% | $98K | NEW |
| 8 | HRT FINANCIAL LP | 183,856 | 0.18% | $111K | +120,355 (+189.5%) |
| 9 | HUNTINGTON NATIONAL BANK | 123,456 | 0.12% | $75K | — |
| 10 | XTX Topco Ltd | 56,178 | 0.05% | $34K | -212,803 (-79.1%) |
| 11 | PRELUDE CAPITAL MANAGEMENT, LLC | 41,674 | 0.04% | $25K | +2,256 (+5.7%) |
| 12 | UBS Group AG | 26,840 | 0.03% | $16K | +5,272 (+24.4%) |
| 13 | SCOTIA CAPITAL INC. | 25,165 | 0.02% | $15K | — |
| 14 | CIBC WORLD MARKET INC. | 22,299 | 0.02% | $14K | +11,000 (+97.4%) |
| 15 | Jefferies Financial Group Inc. | 20,000 | 0.02% | $11K | — |
| 16 | Persistent Asset Partners Ltd | 19,180 | 0.02% | $12K | NEW |
| 17 | GEODE CAPITAL MANAGEMENT, LLC | 17,217 | 0.02% | $10K | NEW |
| 18 | LPL Financial LLC | 15,286 | 0.01% | $9K | +1,255 (+8.9%) |
| 19 | BANK OF MONTREAL /CAN/ | 13,223 | 0.01% | $8K | NEW |
| 20 | New Harbor Financial Group, LLC | 13,000 | 0.01% | $8K | NEW |
| 21 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 12,687 | 0.01% | $8K | NEW |
| 22 | ROYAL BANK OF CANADA | 11,169 | 0.01% | $7K | -3,710 (-24.9%) |
| 23 | Federation des caisses Desjardins du Quebec | 8,984 | 0.01% | $5K | — |
| 24 | MORGAN STANLEY | 5,929 | 0.01% | $4K | +4,748 (+402.0%) |
| 25 | Leonteq Securities AG | 4,702 | 0.00% | $4K | — |
| 26 | TD Waterhouse Canada Inc. | 1,833 | 0.00% | $1K | NEW |
| 27 | WELLS FARGO & COMPANY/MN | 1,750 | 0.00% | $1K | — |
| 28 | Midwest Capital Advisors, LLC | 725 | 0.00% | $438 | — |
| 29 | OSAIC HOLDINGS, INC. | 138 | 0.00% | $84 | -2,500 (-94.8%) |
Exited since 2026-03-31 (6 filers; largest 6 shown)
| Ground Swell Capital, LLC | −48,175 |
| TWO SIGMA SECURITIES, LLC | −40,023 |
| Scientech Research LLC | −16,380 |
| COLDSTREAM CAPITAL MANAGEMENT INC | −11,083 |
| CITIGROUP INC | −3,628 |
| Larson Financial Group LLC | −50 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| WHITEBOX ADVISORS LLC | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 10,825,279 | 9.9% |
| WHITEBOX GENERAL PARTNER LLC | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 10,825,279 | 9.9% |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | SCHEDULE 13G/A | 2026-04-29 | 2026-03-31 | 0 | 0% |
| O'Connor Alternative Investments LLC | SCHEDULE 13G | 2026-04-29 | 2026-03-31 | 9,278,996 | 9.9% |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | SCHEDULE 13G | 2025-10-24 | 2025-10-22 | 9,291,272 | 9.9% |
| Highbridge Capital Management, LLC | SCHEDULE 13D | 2025-07-24 | 2025-07-21 | 3,587,438 | 9.9% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.