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 2026-03-31, as of 2025-12-31)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | RDCM · NASDAQ | 16,592,725 | 8,672,740 | 52.3% | 54 | M81865111 |
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 (54 of 54 · M81865111)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | Lynrock Lake LP | 2,608,752 | 15.72% | $36.8M | -557,914 (-17.6%) |
| 2 | AWM Investment Company, Inc. | 951,796 | 5.74% | $13.4M | -39,465 (-4.0%) |
| 3 | Value Base Ltd. | 865,009 | 5.21% | $12.2M | — |
| 4 | ACADIAN ASSET MANAGEMENT LLC | 671,790 | 4.05% | $9.4M | +43,661 (+7.0%) |
| 5 | QVT Financial LP | 445,265 | 2.68% | $6.3M | NEW |
| 6 | Yelin Lapidot Holdings Management Ltd. | 404,595 | 2.44% | $5.7M | — |
| 7 | Janney Montgomery Scott LLC | 356,404 | 2.15% | $5.0M | +28,925 (+8.8%) |
| 8 | Private Advisor Group, LLC | 350,471 | 2.11% | $4.9M | -548 (-0.2%) |
| 9 | HERALD INVESTMENT MANAGEMENT Ltd | 325,000 | 1.96% | $4.6M | — |
| 10 | RENAISSANCE TECHNOLOGIES LLC | 276,298 | 1.67% | $3.9M | +82,505 (+42.6%) |
| 11 | ARK Investment Management LLC | 174,214 | 1.05% | $2.5M | +1,479 (+0.9%) |
| 12 | Russell Investments Group, Ltd. | 148,289 | 0.89% | $2.1M | -20,073 (-11.9%) |
| 13 | NANO CAP NEW MILLENNIUM GROWTH FUND L P | 100,000 | 0.60% | $1.4M | -2,000 (-2.0%) |
| 14 | RAYMOND JAMES FINANCIAL INC | 96,805 | 0.58% | $1.4M | NEW |
| 15 | BlackRock, Inc. | 91,716 | 0.55% | $1.3M | +683 (+0.8%) |
| 16 | Qube Research & Technologies Ltd | 77,207 | 0.47% | $1.1M | +49,104 (+174.7%) |
| 17 | MILLENNIUM MANAGEMENT LLC | 65,870 | 0.40% | $929K | -346 (-0.5%) |
| 18 | Point72 Asset Management, L.P. | 51,343 | 0.31% | $724K | +36,530 (+246.6%) |
| 19 | MARSHALL WACE, LLP | 50,029 | 0.30% | $705K | -83,268 (-62.5%) |
| 20 | CITADEL ADVISORS LLC | 46,097 | 0.28% | $650K | +35,315 (+327.5%) |
| 21 | Trexquant Investment LP | 39,328 | 0.24% | $555K | -19,888 (-33.6%) |
| 22 | Robertson Stephens Wealth Management, LLC | 36,284 | 0.22% | $512K | NEW |
| 23 | SEI INVESTMENTS CO | 35,823 | 0.22% | $505K | +3,757 (+11.7%) |
| 24 | XTX Topco Ltd | 32,951 | 0.20% | $465K | NEW |
| 25 | Squarepoint Ops LLC | 31,928 | 0.19% | $450K | -46,923 (-59.5%) |
| 26 | ARS Investment Partners, LLC | 30,478 | 0.18% | $430K | NEW |
| 27 | NewEdge Advisors, LLC | 26,299 | 0.16% | $371K | -4,044 (-13.3%) |
| 28 | UBS Group AG | 25,603 | 0.15% | $361K | +7,214 (+39.2%) |
| 29 | LAZARD ASSET MANAGEMENT LLC | 22,465 | 0.14% | $317K | +3,087 (+15.9%) |
| 30 | Boston Partners | 21,949 | 0.13% | $309K | -2,773 (-11.2%) |
| 31 | MORGAN STANLEY | 20,931 | 0.13% | $295K | -534 (-2.5%) |
| 32 | GOLDMAN SACHS GROUP INC | 19,459 | 0.12% | $274K | NEW |
| 33 | Brevan Howard Capital Management LP | 19,342 | 0.12% | $273K | NEW |
| 34 | PRUDENTIAL FINANCIAL INC | 18,000 | 0.11% | $254K | — |
| 35 | Man Group plc | 17,500 | 0.11% | $247K | +3,004 (+20.7%) |
| 36 | VIRTUS ADVISERS, LLC | 17,446 | 0.11% | $246K | +2,090 (+13.6%) |
| 37 | HRT FINANCIAL LP | 15,405 | 0.09% | $217K | NEW |
| 38 | TWO SIGMA INVESTMENTS, LP | 14,588 | 0.09% | $206K | -15,087 (-50.8%) |
| 39 | GEODE CAPITAL MANAGEMENT, LLC | 13,724 | 0.08% | $194K | — |
| 40 | BANK OF AMERICA CORP /DE/ | 13,154 | 0.08% | $185K | +790 (+6.4%) |
| 41 | Eurizon Capital SGR S.p.A. | 10,990 | 0.07% | $153K | NEW |
| 42 | Cox Capital Mgt LLC | 10,000 | 0.06% | $141K | — |
| 43 | Crewe Advisors LLC | 7,000 | 0.04% | $99K | NEW |
| 44 | NEW YORK STATE COMMON RETIREMENT FUND | 5,255 | 0.03% | $74K | — |
| 45 | State of Tennessee, Department of Treasury | 5,009 | 0.03% | $71K | -15,900 (-76.0%) |
| 46 | PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | 2,481 | 0.01% | $35K | — |
| 47 | Tower Research Capital LLC (TRC) | 827 | 0.00% | $12K | +560 (+209.7%) |
| 48 | Steward Partners Investment Advisory, LLC | 580 | 0.00% | $8K | NEW |
| 49 | JONES FINANCIAL COMPANIES LLLP | 550 | 0.00% | $7K | -2,000 (-78.4%) |
| 50 | OSAIC HOLDINGS, INC. | 275 | 0.00% | $4K | -805 (-74.5%) |
| 51 | WELLS FARGO & COMPANY/MN | 100 | 0.00% | $1K | — |
| 52 | Caitong International Asset Management Co., Ltd | 27 | 0.00% | $381 | NEW |
| 53 | SBI Securities Co., Ltd. | 21 | 0.00% | $296 | +1 (+5.0%) |
| 54 | ROYAL BANK OF CANADA | 18 | 0.00% | $0 | -66 (-78.6%) |
Exited since 2026-03-31 (3 filers; largest 3 shown)
| Walleye Capital LLC | −18,887 |
| NORTHERN TRUST CORP | −12,279 |
| JPMORGAN CHASE & CO | −3,603 |
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 |
|---|---|---|---|---|---|
| Lynrock Lake LP | SCHEDULE 13D/A | 2026-09-09 | 2026-09-01 | 2,749,417 | 16.4% |
| LYNROCK LAKE PARTNERS LLC | SCHEDULE 13D/A | 2026-09-09 | 2026-09-01 | 2,749,417 | 16.4% |
| Paul Cynthia | SCHEDULE 13D/A | 2026-09-09 | 2026-09-01 | 2,749,417 | 16.4% |
| Barclays PLC | SCHEDULE 13G/A | 2026-05-14 | 2026-03-31 | 739,277 | 4.61% |
| Ido Nouberger | SCHEDULE 13D/A | 2026-03-26 | 2026-03-25 | 865,009 | 5.27% |
| KLIL ZISAPEL | SCHEDULE 13D/A | 2026-03-26 | 2026-03-25 | 2,294,738 | 14% |
| Value Base Hedge Fund Ltd., acting as the general partner of Harmony Base, Limited Partnership | SCHEDULE 13D/A | 2026-03-26 | 2026-03-25 | 865,009 | 5.27% |
| Value Base Ltd. | SCHEDULE 13D/A | 2026-03-26 | 2026-03-25 | 865,009 | 5.27% |
| Victor Shamrich | SCHEDULE 13D/A | 2026-03-26 | 2026-03-25 | 865,009 | 5.27% |
| Zisapel Michael | SCHEDULE 13D/A | 2026-03-26 | 2026-03-25 | 2,294,738 | 14% |
| AWM Investment Company, Inc. | SCHEDULE 13G/A | 2025-02-14 | 2024-12-31 | 991,261 | 6.4% |
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.