Castellum, Inc.

CTMAMEXTechnology● Active

$0.71

+$0.01(+0.83%)

Market Cap$67596075

P/E Ratio—

52W High$1.56

52W Low$0.48

Avg Volume1.4M

Open$0.73

Beta-4.26

Free Cash Flow Financials Revenue

Castellum, Inc. (CTM) Free Cash Flow & Analysis

Annual & trailing free cash flow, FCF margin, YoY change, valuation ratios, and peer context.

CTM · free cash flow · updated Jun 9, 2026

Core FCF metrics

CTM · FCF · TTM · margin & CAGR

Free cash flow was −$2.1M for FY2025 (fiscal year ending 2025-12-31), down 288.0% year-over-year The FCF margin was -4.0%.

FY2025 Free Cash Flow−$2.1M▼ -288.0% YoY

Trailing 12M (TTM)$1.4MTrailing 4Q sum · TTM positive vs latest FY negative

FCF Margin-4.0%−$2.1M ÷ revenue

3-Year CAGRN/AN/A — contains negative FCF

5-Year CAGRN/AN/A — contains negative FCF

FormulaFCF = Operating Cash Flow − Capital ExpendituresTTM = trailing 4 quarters sumCAGR → N/A if either endpoint ≤ 0

Source: FMP /cash-flow-statement · SEC 10-K / 10-Q · USDUpdated: Jun 9, 2026

Annual free cash flow history

FCF ($B, upper) · YoY Growth % (lower)

Positive FCFNegative FCF

Free Cash Flow

YoY Growth %

Annual free cash flow data

CTM · free cash flow history · annual / quarterly

Fiscal YearOperating CFCapExFree Cash FlowYoY ChangeFCF Margin

FY2025Latest−$1.9M(0M)−$2.1M▼ 288.0%-4.0%

FY2024$1.1M(0M)$1.1M▲ +148.9%2.5%

FY2023−$2.3M(0M)−$2.3M▼ 353.4%-5.0%

FY2022$990,163(0M)$900,881▲ +166.2%2.1%

FY2021−$1.4M(0M)−$1.4M▼ 235.9%-5.4%

FCF = Operating Cash Flow − Capital Expenditures · CapEx shown as (negative) · Source: SEC filings via FMP

FCF valuation metrics

CTM · P/FCF · FCF yield · FCF per share

Castellum, Inc. (CTM) trades at a FCF yield of 2.14% and a price-to-free-cash-flow ratio of 35.7x. FCF per share stands at $0.02, calculated using trailing twelve-month FCF divided by basic weighted-average shares outstanding.

FCF Yield (TTM)

2.14%

Free Cash Flow ÷ Market Cap

per FMP freeCashFlowYieldTTM definition

FCF per Share (TTM)

$0.02

TTM FCF ÷ Shares Outstanding

Price / FCF

x35.7

Share Price ÷ FCF per Share

EV / FCF (TTM)

x36.4

Enterprise Value basis

Source: FMP /key-metrics-ttm · /cash-flow-statement Q · /income-statementFY2025 · 2025-12-31

Cash flow statement summary

CTM · cash flow statement · operating / investing / financing

For FY2025, Castellum, Inc. generated −$1.9M in operating cash flow and spent 0M in capital expenditures, yielding −$2.1M in free cash flow.

Operating Activities

−$1.9M

Cash from core business operations

2025-12-31

Investing Activities

−$0.2M

CapEx, acquisitions & investments

2025-12-31

Financing Activities

+$4.7M

Buybacks, dividends & debt

2025-12-31

FCF FormulaOperating CF (−$1.9M) − |CapEx| (0M) = FCF (−$2.1M)

For the complete Operating / Investing / Financing line-item breakdown:

View Full Cash Flow Statement →

Free cash flow vs peers (Technology)

CTM vs peers · FCF

#CompanyFree Cash FlowYoYFCF MarginRelative

Castellum, Inc.YOU

CTM

−$2.1M-288.0%-4.0%

Loss

Taiwan Semiconductor Manufacturing Company Limited

Microsoft Corporation

Technology · Sorted by FCF · FMP /cash-flow-statementFull FCF Rankings →

About Free Cash Flow & Methodology

Castellum, Inc. (CTM) reported free cash flow of −$2.1M for FY2025 (fiscal year ending 2025-12-31), down 288.0% year-over-year. The FCF margin was -4.0%.

Based on available data, Castellum, Inc. has maintained positive free cash flow for at least 3 fiscal year(s). FCF peaked at $1.1M in FY2024.

Castellum, Inc.'s FCF yield is 2.14% and price-to-FCF ratio is 35.7x for FY2025, based on the latest available data.

Data sourced from FMP /cash-flow-statement · SEC 10-K / 10-Q · USD.

Q&A and summaries align with SEC 10-K/10-Q cash flow disclosures and FMP /cash-flow-statement where noted.

Revenue Financial statements Net income Earnings Forecast Price history Market cap Cash on hand P/E ratio

Frequently asked questions

CTM free cash flow · 8 questions

Castellum, Inc. free cash flow was −$2.1M for FY2025, down 288.0% year-over-year. On a trailing twelve-month (TTM) basis, free cash flow stands at $1.4M.

CTM free cash flowCTM FCFCTM FCF 2025CTM free cash flow TTM

▸ Source: FMP /cash-flow-statement · US GAAP · Castellum, Inc. · Castellum, Inc. SEC 10-K & 10-Q filings · US GAAP · Last updated: Jun 9, 2026