CMBMF · Cambium Networks Corp
$0.31
+0.06 (+24.00%)
At close · Jul 24
Going-concern doubt
— flagged May 20, 2026
Substantial doubt about the company's ability to continue as a going concern.
“management concluded that substantial doubt exists with respect to the Company's ability to continue as a going concern within one year after the date that these consolidated financial statements are issued.”View the 10-Q filed May 20, 2026
Market Cap
$9.00M
Shares
29.03M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 4
Total Value: $4,393
Total Shares: 29,298
Institutional Ownership Trend
25 quarters
Holder Concentration
Across 4 13F filers · Δ vs Dec 31, 2025Top Holder
53.8%
+34.7 pts
Top 5
100.0%
+40.8 pts
Top 10
100.0%
+15.9 pts
HHI
5,023
Highly concentrated+4,037
Quarterly Activity
vs Dec 31, 2025
New
1
Increased
0
Decreased
1
Sold Out
27
Unchanged
2
Holder count:
-26
Institutional value:
-99.9%
Shares held:
-98.7%
Top Buyers
vs Dec 31, 2025No qualifying movers this quarter.
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Small THOMPSON DAVIS & CO., INC. | −6,500 | 13,500 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Micro Cygnus Capital Advisors, LLC | 15,771 | $2,365 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 441,700 | $636,048 | |
| Large RENAISSANCE TECHNOLOGIES LLC | 385,749 | $555,478 | |
| Mega VANGUARD GROUP INC | 218,960 | $315,301 | |
| Mega JANE STREET GROUP, LLC | 176,945 | $254,799 | |
| Mega BlackRock, Inc. | 142,861 | $205,719 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Micro Cygnus Capital Advisors, LLC | $2,365 | 53.84% | 15,771 | Shares | Sole | 2026-05-13 | ||||
| Small THOMPSON DAVIS & CO., INC. | $2,025 | 46.10% | 13,500 | Shares | Sole | 2026-04-16 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $3 | 0.07% | 26 | Shares | Defined | 2026-05-13 | ||||
| Large HUNTINGTON NATIONAL BANK Bank | $0 | 0.00% | 1 | Shares | Defined | 2026-05-15 | ||||
| No holders match your search. | ||||||||||