Cambium Networks
CMBM
CMBM was delisted on the 26th of March, 2026.
28 hedge funds and large institutions have $2.46M invested in Cambium Networks in 2025 Q4 according to their latest regulatory filings, with 3 funds opening new positions, 7 increasing their positions, 9 reducing their positions, and 8 closing their positions.
352% more call options, than puts
Call options by funds: $904K | Put options by funds: $200K
20% less funds holding
Funds holding: 35 → 28 (-7)
22% less repeat investments, than reductions
Existing positions increased: 7 | Existing positions reduced: 9
57.99% less ownership
Funds ownership: 64.04% → 6.04% (-58%)
63% less first-time investments, than exits
New positions opened: 3 | Existing positions closed: 8
85% less capital invested
Capital invested by funds: $16.2M → $2.46M (-$13.7M)
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
+$137K |
| 2 |
Vanguard Group
Malvern,
Pennsylvania
|
+$90.1K |
| 3 |
VF
Virtu Financial
New York
|
+$65.3K |
| 4 |
State Street
Boston,
Massachusetts
|
+$35K |
| 5 |
TDC
Thompson Davis & Co
Richmond,
Virginia
|
+$34K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Two Sigma Investments
New York
|
-$456K |
| 2 |
PCMI
Paradigm Capital Management Inc
Albany,
New York
|
-$418K |
| 3 |
Two Sigma Advisers
New York
|
-$397K |
| 4 |
Renaissance Technologies
New York
|
-$174K |
| 5 |
RC
RBF Capital
San Francisco,
California
|
-$145K |
CMBM Hedge Fund Activity: Q4 2025 in Review
28 of the 8,281 institutional investors tracked by Wall St. Rank reported a position in Cambium Networks (CMBM) for Q4 2025, worth a combined $2.46M — down 85% from $16.2M a quarter earlier.
Sellers outnumbered buyers: 8 funds closed out of CMBM and 3 opened new positions — a net loss of 5 holders — while 9 trimmed existing stakes and 7 added.
The largest buyer was Jane Street, adding an estimated $137K. The largest seller was Two Sigma Investments, cutting an estimated $456K.
- 28 institutional investors held Cambium Networks (CMBM) as of Q4 2025, down from 35 in Q3 2025.
- Funds reported $2.46M of Cambium Networks stock for Q4 2025, down 85% quarter-over-quarter.
- 3 funds opened new Cambium Networks positions in Q4 2025 and 8 closed out, a net change of -5 holders.
- The largest Cambium Networks buyer in Q4 2025 was Jane Street, an estimated $137K added.
- The largest Cambium Networks seller in Q4 2025 was Two Sigma Investments, an estimated $456K sold.
Based on aggregated 13F filings for Q4 2025.