Cambium Networks
CMBM
CMBM was delisted on the 26th of March, 2026.
35 hedge funds and large institutions have $16.2M invested in Cambium Networks in 2025 Q3 according to their latest regulatory filings, with 2 funds opening new positions, 10 increasing their positions, 9 reducing their positions, and 5 closing their positions.
122% more capital invested
Capital invested by funds: $7.27M → $16.2M (+$8.9M)
11% more repeat investments, than reductions
Existing positions increased: 10 | Existing positions reduced: 9
0.45% more ownership
Funds ownership: 63.58% → 64.04% (+0.45%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
8% less funds holding
Funds holding: 38 → 35 (-3)
60% less first-time investments, than exits
New positions opened: 2 | Existing positions closed: 5
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Renaissance Technologies
New York
|
+$154K |
| 2 |
Two Sigma Advisers
New York
|
+$108K |
| 3 |
Jane Street
New York
|
+$28.9K |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$20.7K |
| 5 |
XT
XTX Topco
George Town,
Cayman Islands
|
+$18.2K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HF
HRT Financial
New York
|
-$51K |
| 2 |
TSS
Two Sigma Securities
New York
|
-$43.9K |
| 3 |
LCM
Landscape Capital Management
Englewood,
New Jersey
|
-$31K |
| 4 |
Two Sigma Investments
New York
|
-$16.5K |
| 5 |
BlackRock
New York
|
-$12.5K |
CMBM Hedge Fund Activity: Q3 2025 in Review
35 of the 7,645 institutional investors tracked by Wall St. Rank reported a position in Cambium Networks (CMBM) for Q3 2025, worth a combined $16.2M — up 122% from $7.27M a quarter earlier.
Sellers outnumbered buyers: 5 funds closed out of CMBM and 2 opened new positions — a net loss of 3 holders — while 9 trimmed existing stakes and 10 added.
The largest buyer was Renaissance Technologies, adding an estimated $154K. The largest seller was HRT Financial, exiting entirely with an estimated $51K sold.
- 35 institutional investors held Cambium Networks (CMBM) as of Q3 2025, down from 38 in Q2 2025.
- Funds reported $16.2M of Cambium Networks stock for Q3 2025, up 122% quarter-over-quarter.
- 2 funds opened new Cambium Networks positions in Q3 2025 and 5 closed out, a net change of -3 holders.
- The largest Cambium Networks buyer in Q3 2025 was Renaissance Technologies, an estimated $154K added.
- The largest Cambium Networks seller in Q3 2025 was HRT Financial, an estimated $51K sold.
Based on aggregated 13F filings for Q3 2025.