Cambium NetworksCMBMF
13F holders, Q3 2025 (September 30)At the end of Q3 2025, 35 institutions reported holding Cambium Networks Corp. (CMBMF) in their 13F filings, down 3 from Q2 2025. 2 opened new positions and 5 sold out. The largest holders were Vector Capital Management, L.P. ($12.8M), AMH Equity Ltd ($715K) and Renaissance Technologies ($436K). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Cambium Networks Corp.
- CUSIP
- G17766109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $45K |
| Exits | 5 | $89K |
All 13F filers, Q2 2025 → Q3 2025: 462,894 shares bought and 334,424 shares sold, net +128,470 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 35 holders
| Vector Capital Management, L.P. | 52.58% | No change | 14,325,696 | $12.8M |
| AMH Equity Ltd | 0.90% | Reduce -0.3% | 800,000 | $715K |
| Renaissance Technologies | 0.00% | Add +70.4% | 487,992 | $436K |
| Paradigm Capital Management Inc. | 0.02% | No change | 466,900 | $418K |
| Two Sigma Advisers, LP | 0.00% | Add +46.5% | 444,200 | $397K |
| Two Sigma Investments, LP | 0.00% | Reduce -5.6% | 361,088 | $323K |
| RBF Capital, LLC | 0.01% | No change | 207,306 | $185K |
| Gsa Capital Partners LLP | 0.01% | Add +11.2% | 182,737 | $163K |
| Vanguard Group Inc. | 0.00% | Add +3.4% | 165,873 | $148K |
| BlackRock, Inc. | 0.00% | Reduce -9.5% | 155,280 | $139K |
| Geode Capital Management, LLC | 0.00% | Add +0.5% | 127,542 | $114K |
| Friday Financial | 0.02% | No change | 53,186 | $48K |
| Focus Partners Advisor Solutions, LLC | 0.00% | No change | 53,186 | $48K |
| Jane Street Group, LLC | 0.00% | Add +308.9% | 49,996 | $45K |
| State Street Corp. | 0.00% | No change | 39,790 | $36K |
| Deutsche Bank AG | 0.00% | No change | 38,809 | $35K |
| Citadel Advisors | 0.00% | New | 26,989 | $24K |
| XTX Topco Ltd | 0.00% | New | 23,754 | $21K |
| Tudor Investment Corporation | 0.00% | No change | 21,307 | $19K |
| Northern Trust Corp. | 0.00% | No change | 15,754 | $14K |
| Two Sigma Securities, LLC | 0.00% | Reduce -82.4% | 12,253 | $11K |
| Blair William & Co. | 0.00% | No change | 10,000 | $9K |
| Group One Trading LLC | 0.00% | Add +250.0% | 3,500 | $3K |
| UBS Group AG | 0.00% | Add +5690.2% | 2,953 | $3K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -41.5% | 2,564 | $2K |
| Citigroup Inc. | 0.00% | Add +1496.0% | 1,979 | $2K |
| Osaic Holdings, Inc. | 0.00% | No change | 1,500 | $1K |
| Morgan Stanley | 0.00% | Reduce -0.3% | 1,188 | $1K |
| Bank of America Corp. | 0.00% | Reduce -0.9% | 655 | $585 |
| JPMorgan Chase & Co. | 0.00% | Reduce -96.3% | 537 | $480 |
| BNP Paribas Financial Markets | 0.00% | No change | 519 | $464 |
| SBI Securities Co., Ltd. | 0.00% | Add +4.5% | 23 | $21 |
| Huntington National Bank | 0.00% | No change | 1 | $1 |
| Acadian Asset Management LLC | 0.00% | No change | 26 | $0 |
| Simplex Trading, LLC | 0.00% | Reduce -42.4% | 967 | $0 |
"% of holder's portfolio" is CMBMF's weight in each manager's 13F, not the share of Cambium Networks Corp. the manager owns.