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.
Held by 13F filers
11,337,737
16.9% of shares outstanding
Holders
71
-8 vs 2026-03-31 · 11 new, 19 exited
Value
$22.1M
shares -20.4% vs prior quarter
Share classes (cover page of the 10-Q filed 2026-08-11, as of 2026-08-11)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | MBOT · NASDAQ | 67,164,801 | 11,337,737 | 16.9% | 71 | 59503A204 |
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 (71 of 71 · 59503A204)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 2,906,810 | 4.33% | $5.7M | -2,715 (-0.1%) |
| 2 | Mitsubishi UFJ Asset Management Co., Ltd. | 1,268,453 | 1.89% | $2.5M | NEW |
| 3 | BlackRock, Inc. | 902,411 | 1.34% | $1.8M | +45,013 (+5.2%) |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | 836,271 | 1.25% | $1.6M | +75,440 (+9.9%) |
| 5 | UBS Group AG | 806,847 | 1.20% | $1.6M | -10,098 (-1.2%) |
| 6 | DNB Asset Management AS | 677,498 | 1.01% | $1.3M | — |
| 7 | STIFEL FINANCIAL CORP | 589,924 | 0.88% | $1.2M | +16,849 (+2.9%) |
| 8 | MARSHALL WACE, LLP | 541,963 | 0.81% | $1.1M | +60,918 (+12.7%) |
| 9 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 525,827 | 0.78% | $1.0M | -398,480 (-43.1%) |
| 10 | VANGUARD FIDUCIARY TRUST CO | 431,033 | 0.64% | $841K | +30,808 (+7.7%) |
| 11 | STATE STREET CORP | 303,569 | 0.45% | $592K | — |
| 12 | AlphaCentric Advisors LLC | 250,000 | 0.37% | $488K | +50,000 (+25.0%) |
| 13 | NORTHERN TRUST CORP | 147,530 | 0.22% | $288K | +4,170 (+2.9%) |
| 14 | GROUP ONE TRADING LLC | 106,429 | 0.16% | $208K | +59,866 (+128.6%) |
| 15 | JANE STREET GROUP, LLC | 106,134 | 0.16% | $207K | -35,407 (-25.0%) |
| 16 | AMERICAN CENTURY COMPANIES INC | 93,314 | 0.14% | $182K | +80,896 (+651.4%) |
| 17 | MILLENNIUM MANAGEMENT LLC | 86,302 | 0.13% | $168K | -368,444 (-81.0%) |
| 18 | Invesco Ltd. | 52,201 | 0.08% | $102K | +22,781 (+77.4%) |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 50,000 | 0.07% | $98K | — |
| 20 | Vontobel Holding Ltd. | 48,088 | 0.07% | $94K | — |
| 21 | ENVESTNET ASSET MANAGEMENT INC | 47,426 | 0.07% | $92K | +2,804 (+6.3%) |
| 22 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 44,300 | 0.07% | $86K | -50,000 (-53.0%) |
| 23 | Cetera Investment Advisers | 43,812 | 0.07% | $85K | +1,400 (+3.3%) |
| 24 | LAZARI CAPITAL MANAGEMENT, INC. | 36,600 | 0.05% | $71K | +13,345 (+57.4%) |
| 25 | Hilltop Holdings Inc. | 35,764 | 0.05% | $70K | — |
| 26 | XTX Topco Ltd | 34,411 | 0.05% | $67K | NEW |
| 27 | SCOTIA CAPITAL INC. | 32,876 | 0.05% | $64K | — |
| 28 | Beacon Capital Management, LLC | 32,000 | 0.05% | $62K | — |
| 29 | SIMPLEX TRADING, LLC | 30,189 | 0.04% | $59K | -24,653 (-45.0%) |
| 30 | LPL Financial LLC | 29,640 | 0.04% | $58K | -5,009 (-14.5%) |
| 31 | Private Advisor Group, LLC | 22,851 | 0.03% | $45K | +300 (+1.3%) |
| 32 | WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 22,279 | 0.03% | $42K | NEW |
| 33 | Squarepoint Ops LLC | 20,286 | 0.03% | $40K | -105,307 (-83.8%) |
| 34 | Vanguard Global Advisers, LLC | 19,971 | 0.03% | $39K | — |
| 35 | OSAIC HOLDINGS, INC. | 16,605 | 0.02% | $32K | +12,601 (+314.7%) |
| 36 | Caitong International Asset Management Co., Ltd | 13,544 | 0.02% | $26K | -22,318 (-62.2%) |
| 37 | Qube Research & Technologies Ltd | 13,494 | 0.02% | $26K | -59,209 (-81.4%) |
| 38 | Focus Partners Wealth | 12,985 | 0.02% | $25K | NEW |
| 39 | MORGAN STANLEY | 12,053 | 0.02% | $24K | -66,451 (-84.6%) |
| 40 | Tower Research Capital LLC (TRC) | 11,448 | 0.02% | $22K | +2,901 (+33.9%) |
| 41 | KESTRA PRIVATE WEALTH SERVICES, LLC | 11,000 | 0.02% | $21K | NEW |
| 42 | Cerity Partners LLC | 10,635 | 0.02% | $21K | +2 (+0.0%) |
| 43 | OpenArc Corporate Advisory, LLC | 10,000 | 0.01% | $20K | — |
| 44 | Cornerstone Advisory, LLC | 10,000 | 0.01% | $20K | — |
| 45 | WELLS FARGO & COMPANY/MN | 8,734 | 0.01% | $17K | — |
| 46 | BFSG, LLC | 5,500 | 0.01% | $11K | — |
| 47 | SBI Securities Co., Ltd. | 2,832 | 0.00% | $6K | +101 (+3.7%) |
| 48 | Steward Partners Investment Advisory, LLC | 2,300 | 0.00% | $4K | — |
| 49 | Guardian Partners Inc. | 2,000 | 0.00% | $4K | NEW |
| 50 | Asset Planning,Inc | 2,000 | 0.00% | $4K | NEW |
| 51 | Avion Wealth | 2,000 | 0.00% | $3K | +500 (+33.3%) |
| 52 | ROYAL BANK OF CANADA | 1,901 | 0.00% | $4K | — |
| 53 | Ameritas Advisory Services, LLC | 1,186 | 0.00% | $2K | NEW |
| 54 | Arax Advisory Partners | 1,108 | 0.00% | $2K | +1 (+0.1%) |
| 55 | Clearstead Advisors, LLC | 860 | 0.00% | $2K | +585 (+212.7%) |
| 56 | Leonteq Securities AG | 660 | 0.00% | $1K | — |
| 57 | JONES FINANCIAL COMPANIES LLLP | 502 | 0.00% | $889 | +1 (+0.2%) |
| 58 | JPMORGAN CHASE & CO | 422 | 0.00% | $789 | NEW |
| 59 | EverSource Wealth Advisors, LLC | 357 | 0.00% | $696 | — |
| 60 | FMR LLC | 323 | 0.00% | $630 | +319 (+7975.0%) |
| 61 | Allworth Financial LP | 130 | 0.00% | $254 | — |
| 62 | HARBOUR INVESTMENTS, INC. | 66 | 0.00% | $129 | +65 (+6500.0%) |
| 63 | BARCLAYS PLC | 58 | 0.00% | $113 | -53,108 (-99.9%) |
| 64 | SIGNATUREFD, LLC | 18 | 0.00% | $35 | — |
| 65 | Financially Speaking Inc | 1 | 0.00% | $3 | — |
| 66 | Federation des caisses Desjardins du Quebec | 1 | 0.00% | $2 | — |
| 67 | Farther Finance Advisors, LLC | 1 | 0.00% | $2 | — |
| 68 | Atlantic Union Bankshares Corp | 1 | 0.00% | $2 | — |
| 69 | WOLFF WIESE MAGANA LLC | 1 | 0.00% | $2 | — |
| 70 | Evelyn Partners Group Ltd | 1 | 0.00% | $2 | NEW |
| 71 | Wilkerson Advisory Group LLC | 1 | 0.00% | $2 | NEW |
Exited since 2026-03-31 (19 filers; largest 19 shown)
| CIBC Bancorp USA Inc. | −1,870,000 |
| Ancora Advisors LLC | −477,080 |
| GOLDMAN SACHS GROUP INC | −309,103 |
| Russell Investments Group, Ltd. | −198,622 |
| 683 Capital Management, LLC | −170,000 |
| Hudson Bay Capital Management LP | −121,082 |
| OMERS ADMINISTRATION Corp | −85,500 |
| BANK OF AMERICA CORP /DE/ | −75,799 |
| BNP PARIBAS FINANCIAL MARKETS | −69,717 |
| Virtu Financial LLC | −40,042 |
| Quantbot Technologies LP | −26,588 |
| Diametric Capital, LP | −24,382 |
| Catalyst Funds Management Pty Ltd | −21,900 |
| Schonfeld Strategic Advisors LLC | −17,100 |
| OPPENHEIMER ASSET MANAGEMENT INC. | −12,454 |
| CTC Alternative Strategies, Ltd. | −11,718 |
| CWM, LLC | −2,749 |
| MAI Capital Management | −1,000 |
| Evelyn Partners Investment Management Services Ltd | −1 |
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 |
|---|---|---|---|---|---|
| Daniel B. Asher | SCHEDULE 13G | 2026-01-23 | 2026-01-15 | 6,002,185 | 8.2% |
| Intracoastal Capital LLC | SCHEDULE 13G | 2026-01-23 | 2026-01-15 | 6,002,185 | 8.2% |
| Mitchell P. Kopin | SCHEDULE 13G | 2026-01-23 | 2026-01-15 | 6,002,185 | 8.2% |
| The Vanguard Group | SCHEDULE 13G/A | 2025-10-31 | 2025-09-30 | 2,343,561 | 4.45% |
| CVI Investments, Inc. | SCHEDULE 13G/A | 2025-05-12 | 2025-03-31 | 1,824,807 | 4.9% |
| Heights Capital Management, Inc. | SCHEDULE 13G/A | 2025-05-12 | 2025-03-31 | 1,824,807 | 4.9% |
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.