Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in RDCM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Lynrock Lake LP | 3.2M | $38.5M | +29.7% | 18.919% | 2.63% |
| 2 | AWM Investment Company, Inc. | 991K | $12.1M | 0.0% | 5.922% | 1.33% |
| 3 | Value Base Ltd. | 865K | $10.5M | 0.0% | 5.168% | 8.29% |
| 4 | Yelin Lapidot Holdings Management Ltd. | 405K | $4.9M | -2.9% | 2.417% | 1.02% |
| 5 | Private Advisor Group, LLC | 351K | $4.3M | +2.1% | 2.097% | 0.02% |
| 6 | Herald Investment Management Ltd | 325K | $3.9M | 0.0% | 1.942% | 0.55% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | 194K | $2.4M | -7.2% | 1.158% | 0.00% |
| 8 | ARK Investment Management LLC | 173K | $2.1M | +14.4% | 1.032% | 0.02% |
| 9 | Russell Investments Group, Ltd. | 168K | $2.0M | -1.2% | 1.006% | 0.00% |
| 10 | MARSHALL WACE, LLP | 133K | $1.6M | -31.8% | 0.796% | 0.00% |
| 11 | NANO CAP NEW MILLENNIUM GROWTH FUND L P | 102K | $1.2M | 0.0% | 0.609% | 1.16% |
| 12 | BlackRock, Inc. | 91K | $1.1M | +18.4% | 0.544% | 0.00% |
| 13 | Squarepoint Ops LLC | 79K | $959K | +25.3% | 0.471% | 0.00% |
| 14 | MILLENNIUM MANAGEMENT LLC | 66K | $805K | -17.9% | 0.396% | 0.00% |
| 15 | Trexquant Investment LP | 59K | $720K | +5.9% | 0.354% | 0.01% |
| 16 | SEI INVESTMENTS CO | 32K | $390K | -48.9% | 0.192% | 0.00% |
| 17 | TWO SIGMA INVESTMENTS, LP | 30K | $361K | -69.4% | 0.177% | 0.00% |
| 18 | Qube Research & Technologies Ltd | 28K | $342K | β | 0.168% | 0.00% |
| 19 | Boston Partners | 25K | $301K | -3.5% | 0.148% | 0.00% |
| 20 | MORGAN STANLEY | 21K | $261K | -8.4% | 0.128% | 0.00% |
| 21 | State of Tennessee, Treasury Department | 21K | $254K | 0.0% | 0.125% | 0.00% |
| 22 | LAZARD ASSET MANAGEMENT LLC | 19K | $236K | β | 0.116% | 0.00% |
| 23 | Walleye Capital LLC | 19K | $230K | -66.6% | 0.113% | 0.00% |
| 24 | UBS Group AG | 18K | $224K | -17.4% | 0.110% | 0.00% |
| 25 | PRUDENTIAL FINANCIAL INC | 18K | $219K | 0.0% | 0.107% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in RDCM β a direct measure of their conviction.
Filings activity in RDCM during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new RDCM position in Q1 2026
Institutions that fully closed their RDCM position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 43 | 12% | 42.66% | 2.31 pp | $91M | 5.1% |
| Q4 2025 | 49 | +11% | 44.97% | 2.40 pp | $96M | 5.0% |
| Q3 2025 | 44 | +0.0% | 47.37% | +2.01 pp | $101M | +4.4% |
| Q2 2025 | 44 | +16% | 45.36% | +7.57 pp | $97M | +20% |
| Q1 2025 | 38 | +2.7% | 37.79% | 2.59 pp | $81M | 6.4% |
| Q4 2024 | 37 | +28% | 40.38% | +11.96 pp | $87M | +42% |
| Q3 2024 | 29 | +16% | 28.42% | +1.92 pp | $61M | +7.3% |
| Q2 2024 | 25 | β | 26.50% | β | $57M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying RDCM stock.
Based on Q1 2026 13F filings, institutional ownership of RADCOM Ltd. stands at 42.7%, held across 43 reporting institutions.
Lynrock Lake LP is the largest reported institutional holder of RDCM, with approximately 3,166,666 shares worth $0.04B as of Q1 2026.
Yes β 4 widely-followed marquee investors appear among the top 25 institutional holders of RDCM, including RENAISSANCE TECHNOLOGIES LLC, ARK Investment Management LLC, MILLENNIUM MANAGEMENT LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for RDCM is 42 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
6 institutions opened new positions in RDCM during Q1 2026, while 12 fully exited. 7 added to existing positions and 30 trimmed.
RDCM institutional ownership fell by 2.31 percentage points quarter-over-quarter, with a net change of -6 holders.
The top 10 institutions account for 90.1% of all reported 13F value in RDCM, and the top 25 account for 98.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
RADCOM Ltd. (RDCM) Institutional Ownership