Filing Flows › Castellum (CTM) › Q3 2026
Castellum (CTM) Q3 2026 earnings results (third quarter 2026)
10-Q filed Nov 5, 2026
Castellum (CTM) reported revenue of $14.7M for the third quarter 2026 (Q3 2026), +0.6% from a year earlier and +6% from the quarter before. Operating margin was -3.8%, net loss $454K (3.1% of revenue).
Castellum, Q3 2026: revenue $14.7M (+0.6% year over year), operating margin -3.8%, net loss $454K, operating cash flow −$1.3M. The chart follows the revenue to costs, profit and cash.
| Q3 2026 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $14.7M | +6% | +0.6% |
| Operating profit | −$564K | — | -227% |
| Net earnings | −$454K | — | -209% |
| Operating cash flow | −$1.3M | -221% | -228% |
What changed
Revenue was $14.7M in Q3 2026, up 1% year over year and up 6% from the previous quarter.
Gross margin was 36.1%, down 1.5 points from Q3 2025. Operating costs exceeded revenue by $564K, an operating margin of -3.8%. Operating expenses grew 16% against revenue growth of 1%. The fastest-growing cost line was General & admin (+20%). The quarter ended with a net loss of $454K, narrower than the previous quarter's $1.0M loss. Non-operating items added $107K, -23% of pre-tax earnings, so the bottom line overstates operating performance.
Operating cash flow was −$1.3M. Non-cash charges added back $323K of depreciation and amortization and $829K of share-based compensation. Working capital and other items used $2.0M.
Questions
What was Castellum's revenue in the third quarter 2026?
Castellum (CTM) reported revenue of $14.7M for the third quarter 2026 (Q3 2026), +0.6% from a year earlier and +6% from the quarter before.
Was Castellum profitable in the third quarter 2026?
Operating loss was $564K (-3.8% of revenue) and net loss $454K.
Source: Castellum 10-Q on SEC EDGAR.