SEC Tracker
Get the app

Cambium Networks

CMBMF on OTC, formerly CMBMRadio & tv broadcasting & communications equipment

OTC listing: 7 notices since Dec 2025 (newest Aug 31)

Revenue $44.6M (+32%), diluted EPS −$0.12 in the quarter ended Mar 31, 2026, from a 10-Q filed .

Insiders No open-market insider buys or sells at Cambium Networks in the last 90 days; 1 filing reported awards, option exercises, tax withholding or new insiders. Every trade

Next: 10-Q overdue, was due Aug 19. Extended by NT 10-Q.

Get email alertsGet the app
Legal name
Cambium Networks Corp
CIK
1738177
Sector
Computer hardware and networking
  • Cash$5.9MCash down $21.9M vs the Mar 2025 quarter
  • Cash from operations, last quarter−$4.4MCash from operations up $445K vs the Mar 2025 quarter
  • Shares outstanding29.0MAverage shares, not this count: +1% over 12 months to Mar 31, 2026, split-adjusted

From the 10-Q 0001193125-26-232550 on EDGAR

Major8-K filed

Cambium Networks sells remaining assets

  • Sold Remaining Business to Univastu for $5.1M
  • Includes ePMP, PTP 550, and cnMaestro platform
  • CNL to proceed to liquidation after administration

Read the 8-K on EDGARTables over time

Cash runway and key numbers

Not ranked by runway: revenue in the latest quarter was larger than the cash outflow, so the outflow reads as a swing in inventory, receivables or payables, not a burn rate.

From the 10-Q 0001193125-26-232550 for the period ended Mar 31, 2026, as tagged in its XBRL. An estimate from reported figures, not a forecast or advice.

Every quarter as a table
Key numbers, last 8 quarters (— means no figure was tagged for that quarter; each share count is the one on the report's cover, with the cover date under it)
Jun 24Sep 24Dec 24Mar 25Jun 25Sep 25Dec 25Mar 26
Cash$42.6M$46.5M$34.9M$27.8M$15.8M$9.7M$11.1M$5.9M
Quarterly burnnonenone$10.4M$4.8M$9.3M$4.4Mnone$4.4M
Shares outstanding28.2Mas of Aug 528.2Mas of Nov 8————29.0Mas of Apr 2329.0Mas of May 14
R&D$9.1M$9.3M$10.1M$9.4M$7.4M$7.7M$8.4M$7.9M

Every line item over time, with Excel and CSV export

Get an email when Cambium Networks files

Only major filings: results, leadership changes, listing notices and other major events, each with the plain-English summary when we have one or the key facts and the EDGAR link. Routine insider filings never email. Confirm once; unsubscribe in one click.

All filings

Latest: the 40 newest filings, key filings first. Each other tab counts its kind among the 400 most recent EDGAR filings.

Results, 8-Ks and Major or Notable filings come first, then registrations and share actions, then everything else, newest first. Routine filings are kept here unmarked; insider filings are summed up in one line.

Results, 8-Ks and key filings

  3. 2 more 8-K filings, Sep 14 to Aug 31
  10. 14 older filings, Apr 30 to Oct 16, 2025
    7. 6 more 8-K filings, Jan 15 to Nov 18, 2025

No open-market insider buys or sells at Cambium Networks in the last 90 days; 1 filing reported awards, option exercises, tax withholding or new insiders. Every CMBMF insider trade

Other filings

Older filings on EDGAR

Results 61

DateFormWhat it is
May 20, 202610-QQuarter ended Mar 31, 2026: revenue $44.6M (+32%), diluted EPS −$0.12
May 1, 202610-KYear ended Dec 31, 2025: revenue $159.6M (−10%), diluted EPS −$1.34

Key exhibits: Material contract (EX-10.48)

Apr 30, 202610-QQuarter ended Sep 30, 2025: revenue $43.0M (−2%), diluted EPS −$0.30
Apr 30, 202610-QQuarter ended Jun 30, 2025: revenue $39.4M (−14%), diluted EPS −$0.32
Apr 30, 202610-QQuarter ended Mar 31, 2025: revenue $33.7M (−20%), diluted EPS −$0.42
Apr 7, 202610-KYear ended Dec 31, 2024: revenue $177.3M (−19%), diluted EPS −$2.65
Nov 18, 20258-KCambium Networks Provides Financial Update
Aug 26, 20258-KReports Q2 FY25 results (press release)

53 older results filings on EDGAR.

Offerings and dilution 20

DateFormWhat it is
Mar 18, 2024S-8Employee stock plan registration
Mar 1, 2023S-8Employee stock plan registration
Feb 25, 2022S-8Employee stock plan registration
Jun 3, 2021424B7Prospectus
Jun 1, 2021424B7Prospectus
May 12, 2021EFFECTRegistration declared effective
May 7, 2021S-3Shelf registration
Mar 1, 2021S-8Employee stock plan registration

12 older offerings and dilution filings on EDGAR.

Insiders 223

DateFormWhat it is
Aug 20, 2026Form 4Morgan C S Kurk (CEO) withheld for taxes 1,780 CMBMF at $0.16, worth $276
Jul 14, 2026Form 4Vibhu Vivek (Senior VP, Products) withheld for taxes 898 CMBMF at $0.25, worth $225
Jun 3, 2026Form 4Melissa Elizabeth Cada-Bartoli (Officer) withheld for taxes 59 CMBMF at $0.30, worth $18
May 20, 2026Form 4Morgan C S Kurk (CEO) withheld for taxes 1,721 CMBMF at $0.29, worth $499
Apr 14, 2026Form 4Vibhu Vivek (Senior VP, Products) withheld for taxes 1,030 CMBMF at $0.10, worth $103
Mar 3, 2026Form 4Melissa Elizabeth Cada-Bartoli (Officer) withheld for taxes 59 CMBM at $1.12, worth $66
Feb 20, 2026Form 4Morgan C S Kurk (CEO) withheld for taxes 2,109 CMBM at $1.21, worth $3K
Jan 13, 2026Form 4Vibhu Vivek (Senior VP, Products) withheld for taxes 895 CMBM at $1.49, worth $1K

215 older insiders filings on EDGAR.

Ownership 9

DateFormWhat it is
Mar 17, 2025Schedule 13G/APassive stake of 5% or more (amended)
Mar 11, 2025Schedule 13G/APassive stake of 5% or more (amended)
Feb 14, 2025Schedule 13GPassive stake of 5% or more
Feb 3, 2025Schedule 13G/APassive stake of 5% or more (amended)
Jan 27, 2025Schedule 13GPassive stake of 5% or more
Nov 12, 2024Schedule 13GPassive stake of 5% or more
Jun 9, 2021Schedule 13D/AActive stake of 5% or more (amended)
Feb 18, 2021Schedule 13D/AActive stake of 5% or more (amended)

1 older ownership filings on EDGAR.

Governance 29

DateFormWhat it is
Sep 28, 20268-KCambium Networks says Morgan Kurk resigned from the board
Jun 26, 20268-KCambium Networks Corporation, an exempted company incorporated with limited liability
May 22, 2026DEFA14AAdditional proxy materials
May 22, 2026DEF 14AProxy statement
May 12, 2026PRE 14APreliminary proxy statement
Nov 14, 20248-KReports an executive or board change
Aug 27, 20248-KReports an executive or board change
Jul 24, 20248-KReports an executive or board change

21 older governance filings on EDGAR.

Other 34

DateFormWhat it is
Oct 19, 20268-KCambium Networks sells remaining assets
May 29, 2026SDConflict minerals report
May 22, 2026ARSAnnual report to shareholders
May 30, 2025SDConflict minerals report
Mar 31, 20258-KMakes a Regulation FD disclosure
Feb 25, 20258-KAnnounces exit or restructuring costs
May 29, 2024SDConflict minerals report
Apr 26, 2024UPLOADSEC staff letter

26 older other filings on EDGAR.

Listing compliance

0 open of 7 listing notices from 8-K item 3.01.

  • Aug 31, 2026 8-K item 3.01 notice; rule and cure date not stated, see the filing
  • Mar 26, 2026 8-K item 3.01 notice; rule and cure date not stated, see the filing
  • Mar 26, 2026 8-K item 3.01 notice; rule and cure date not stated, see the filing
  • Jan 15, 2026 8-K item 3.01 notice; rule and cure date not stated, see the filing
  • Dec 18, 2025 8-K item 3.01 notice; rule and cure date not stated, see the filing
  • Dec 5, 2025 8-K item 3.01 notice; rule and cure date not stated, see the filing
  • Dec 1, 2025 8-K item 3.01 notice; rule and cure date not stated, see the filing

Dates and rules are as stated in each 8-K item 3.01 filing; a blank means the filing did not state one. Read the filing for the full terms. All open notices

Trading halts

Exchange-listed stocks only: CMBMF trades OTC, so its halts are not covered. SEC Tracker has read the Nasdaq Trader feed since Feb 22, 2019.

Halt times and codes from the Nasdaq Trader trade halts feed, which lists Nasdaq and other exchange halts. Filings matched by SEC Tracker from EDGAR by company and time. Not investment advice. All recent halts

Fails-to-deliver: 3,377 shares on Aug 24, 2026, per SEC data

Coming up

  1. 10-Q for the period ended Jun 30, 2026, overdue (extended by NT 10-Q)

Stated dates are as each filing on EDGAR gives them. A due date is the SEC deadline for the company's filer category, plus the 5 or 15 days an NT 10-Q or NT 10-K adds. Not investment advice.

Cambium Networks shares and listing

From the company's own filings; each row names its source. Not investment advice.

  • Shares outstandingas of May 14, 2026 (10-Q filed May 20)29Mwarrants, notes and options not read yet, so fully diluted is not known
  • Listing compliance8-K item 3.017 noticesstatus not stated, see the filings

Insider activity

No open-market insider buys or sells at Cambium Networks in the last 90 days; 1 filing reported awards, option exercises, tax withholding or new insiders.

All CMBMF insider trades

Similar companies

Same SIC code (3663 Radio & tv broadcasting & communications equipment) and public float under $300M, nearest public float first, as each company reports it on its annual report cover.

  1. CareView Communications CRVW public float $6M, Jun 30, 2025
  2. Digital Ally DGLY public float $4M, Jun 30, 2025
  3. Global Technologies GTLL
  4. Energous WATT public float $11M, Jun 30, 2025
  5. Parkervision PRKR public float $30M, Jun 30, 2025