Lantronix generated $1.7M of free cash flow in 2026Q4 on a 5.5% FCF margin with capital expenditure at just 0.7% of revenue, yet roughly $16.8M of ten-quarter stock compensation, about 73% of cumulative operating cash flow, suggests meaningful dilution underpins reported cash generation.
Lantronix, Inc. (LTRX) cash flow statement — 28-year operating, investing & financing cash flows
| Metric | Jun'26 | Jun'25 | Jun'24 | Jun'23 | Jun'22 | Jun'21 | Jun'20 | Jun'19 | Jun'18 | Jun'17 | Jun'16 | Jun'15 | Jun'14 | Jun'13 | Jun'12 | Jun'11 | Jun'10 | Jun'09 | Jun'08 | Jun'07 | Jun'06 | Jun'05 | Jun'04 | Jun'03 | Jun'02 | Jun'01 | Jun'00 | Jun'99 |
|---|
| Cash from Operations | 9.88M | 7.29M | 18.62M | 237K | -9.42M | 4.3M | -2.52M | -1.75M | 509K | 2.07M | 213K | -1.64M | 1.56M | -4.48M | -2.52M | -4.11M | 2.91M | 1.29M | 127K | -992K | 73K | -4.37M | -2.94M | -17.51M | -12.83M | -4.95M | -2.08M | 5.59M |
| Operating CF Margin % | 8.17% | 5.93% | 11.62% | 0.18% | -7.26% | 6.02% | -4.21% | -3.73% | 1.12% | 4.63% | 0.52% | -3.82% | 3.5% | -9.6% | -5.56% | -8.34% | 6.28% | 2.63% | 0.22% | -1.79% | 0.14% | -9.01% | -6.01% | -35.37% | -22.26% | -8.97% | -4.63% | 16.96% |
| Operating CF Growth % | 35.58% | -60.88% | 7757.81% | 102.52% | -318.77% | 270.73% | -44.22% | -443.42% | -75.43% | 872.77% | 112.99% | -205.33% | 134.76% | -77.53% | 38.64% | -241.21% | 125.39% | 917.32% | 112.8% | -1458.9% | 101.67% | -48.79% | 83.23% | -36.47% | -158.98% | -137.94% | -137.21% | - |
| Net Income | -4.18M | -11.37M | -4.52M | -8.98M | -5.36M | -4.04M | -10.74M | -408K | 680K | -277K | -1.96M | -2.77M | -933K | -2.77M | -3.04M | -5.27M | -1.52M | -780K | -2.51M | -1.72M | -3.04M | -7.06M | -15.65M | -47.55M | -93.46M | -4.38M | 1.05M | 2.79M |
| Depreciation & Amortization | 3.18M | 6.04M | 7.48M | 7.54M | 6.62M | 3.91M | 2.81M | 464K | 442K | 594K | 759K | 878K | 895K | 852K | 988K | 1.14M | 1.02M | 879K | 654K | 473K | 1.01M | 2.11M | 3.96M | 7.51M | 6.22M | 2.62M | 2.43M | 973K |
| Stock-Based Compensation | 6.27M | 6.13M | 8.34M | 6.21M | 6.25M | 3.58M | 3.64M | 1.87M | 1.17M | 912K | 870K | 1.01M | 869K | 848K | 745K | 1.6M | 1.9M | 1.87M | 1.29M | 0 | 0 | 0 | 0 | 0 | 2.98M | 0 | 0 | 0 |
| Deferred Taxes | 0 | 0 | 0 | 0 | 0 | 0 | 16K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 482K | 27K | 0 | 0 | -634K | 0 | 0 | 0 | -600K | 0 | -5.59M | -1.02M | 798K | -158K |
| Other Non-Cash Items | 84K | 139K | 926K | -103K | 2.52M | 228K | 273K | 285K | 3.32M | 299K | 300K | 220K | 209K | 255K | 286K | 219K | -199K | 818K | 1.8M | 818K | 382K | 574K | 7.88M | 22.94M | 77.15M | 5.83M | 1K | -133K |
| Working Capital Changes | 4.52M | 6.35M | 6.4M | -4.43M | -19.43M | 625K | 1.48M | -3.96M | -1.78M | 544K | 246K | -982K | 517K | -3.67M | -1.98M | -1.83M | 1.71M | -1.49M | -469K | -560K | 1.72M | 8K | 1.48M | -409K | -129K | -8.01M | -6.37M | 2.13M |
| Change in Receivables | -654K | 4.52M | -3.6M | 915K | -7.47M | -3.73M | 2.81M | -1.97M | -812K | -268K | -506K | 973K | -1.03M | 75K | 234K | -1.59M | 516K | 2.33M | -826K | -350K | 0 | 0 | 0 | 0 | 2.54M | 0 | 0 | 0 |
| Change in Inventory | 549K | 2.04M | 21.22M | -8.69M | -15.27M | -1.28M | 3.37M | -2.53M | -1.48M | -674K | 2.63M | -1.32M | 130K | -3.07M | 2.72M | -2.46M | -202K | 1.53M | 2.54M | -2.88M | -958K | -315K | 199K | 584K | 2.98M | -450K | -2.08M | -592K |
| Change in Payables | 3.35M | 2.89M | -2.13M | -8.57M | 8.78M | 3.57M | -2.6M | 765K | 1.2M | -7K | -965K | -960K | 1.57M | -693K | -4.79M | 1.81M | 924K | -2.06M | -3.34M | 3.15M | 0 | 0 | 0 | 0 | -3.83M | 0 | 0 | 0 |
| Cash from Investing | -612K | -6.96M | -1.48M | -7.32M | -25.75M | -783K | -13.97M | -891K | -229K | -236K | -570K | -577K | -595K | -866K | -639K | -413K | -860K | -676K | -579K | 208K | 628K | 2.93M | 3.46M | -2.15M | -25.77M | -29.34M | -1.06M | -2.89M |
| Capital Expenditures | -612K | -505K | -1.48M | -2.67M | -2.12M | -783K | -572K | -891K | -229K | -236K | -570K | -577K | -595K | -866K | -639K | -413K | -860K | -676K | -683K | -492K | -672K | -124K | -248K | -283K | -2.75M | -4.63M | -942K | -543K |
| CapEx % of Revenue | 0.51% | 0.41% | 0.92% | 2.04% | 1.63% | 1.1% | 0.96% | 1.9% | 0.5% | 0.53% | 1.4% | 1.34% | 1.34% | 1.86% | 1.41% | 0.84% | 1.85% | 1.38% | 1.19% | 0.89% | 1.29% | 0.26% | 0.51% | 0.57% | 4.77% | 8.39% | 2.09% | 1.65% |
| Acquisitions | 0 | -6.46M | 0 | -4.65M | -23.63M | 0 | -13.4M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -2.11M | -4.75M | -16.46M | -116K | -2.35M |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 104K | 208K | 628K | 0 | 0 | 0 | -6M | -6.27M | 0 | 0 |
| Cash from Financing | 31.1M | -6.46M | -4.36M | 3.32M | 42.65M | -1.47M | 5.9M | 11.35M | 1.22M | 275K | 1.33M | 942K | 59K | -786K | 8.7M | 212K | -1.07M | 1.23M | 106K | 565K | 267K | -910K | 1.23M | 345K | 49.66M | 47.68M | -702K | 1.37M |
| Debt Issued (Net) | -12.05M | -4.72M | -3.08M | 2.88M | 11.73M | -1.51M | 5.13M | -55K | -61K | -60K | -771K | 643K | -214K | -760K | -824K | 414K | -966K | 1.14M | -223K | -142K | -176K | -1.38M | 500K | 0 | 0 | -6.75M | -766K | 766K |
| Equity Issued (Net) | 44.85M | 357K | 1M | 1.25M | 34.23M | 913K | 1.16M | 11.6M | 1.49M | 529K | 2.15M | 352K | 273K | 0 | 9.55M | 93K | 159K | 87K | 329K | 707K | 443K | 468K | 726K | 345K | 49.14M | 54.4M | 64K | 605K |
| Dividends Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -26K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Financing | -1.69M | -2.09M | -2.29M | -821K | -3.31M | -877K | -379K | -189K | -213K | -194K | -48K | -53K | 0 | -26K | -30K | -295K | -263K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 513K | 32K | 0 | 0 |
| Net Change in Cash | 40.37M | -6.14M | 12.79M | -3.77M | 7.48M | 2.05M | -10.59M | 8.71M | 1.5M | 2.11M | 973K | -1.27M | 1.02M | -6.13M | 5.54M | -4.24M | 938K | 1.7M | -148K | -147K | 1.04M | -2.44M | 1.8M | -19.16M | 11.12M | 13.38M | -3.85M | 4.07M |
| Free Cash Flow | 9.27M | 6.78M | 17.14M | -2.44M | -11.53M | 3.52M | -3.09M | -2.64M | 280K | 1.84M | -357K | -2.22M | 962K | -5.34M | -3.16M | -4.53M | 2.05M | 616K | -556K | -1.48M | -599K | -4.49M | -3.19M | -17.79M | -15.58M | -9.59M | -3.02M | 5.05M |
| FCF Margin % | 7.66% | 5.52% | 10.69% | -1.86% | -8.9% | 4.93% | -5.17% | -5.63% | 0.61% | 4.1% | -0.88% | -5.16% | 2.16% | -11.46% | -6.97% | -9.17% | 4.42% | 1.25% | -0.97% | -2.68% | -1.15% | -9.27% | -6.52% | -35.94% | -27.03% | -17.37% | -6.72% | 15.32% |
| FCF Growth % | 36.65% | -60.45% | 803.78% | 78.88% | -427.58% | 213.84% | -17.2% | -1042.5% | -84.75% | 614.29% | 83.9% | -330.46% | 118% | -69.04% | 30.12% | -320.52% | 233.12% | 210.79% | 62.53% | -147.75% | 86.67% | -41.1% | 82.1% | -14.2% | -62.53% | -217% | -159.86% | - |
| FCF per Share | 0.22 | 0.18 | 0.46 | -0.07 | -0.35 | 0.12 | -0.12 | -0.12 | 0.01 | 0.11 | -0.02 | -0.15 | 0.07 | -0.37 | -0.28 | -0.43 | 0.20 | 0.06 | -0.06 | -0.15 | -0.06 | -0.46 | -0.34 | -1.96 | -1.82 | -1.56 | -0.53 | 1.05 |
| FCF Conversion (FCF/Net Income) | -2.36x | -0.64x | -4.12x | -0.03x | 1.76x | -1.06x | 0.23x | 4.28x | 0.75x | -7.48x | -0.11x | 0.59x | -1.67x | 1.62x | 0.83x | 0.78x | -1.92x | -1.66x | -0.05x | 0.58x | -0.02x | 0.62x | 0.19x | 0.37x | 0.14x | 1.13x | -1.97x | 2.01x |
| Interest Paid | 0 | 1.32M | 1.92M | 1.56M | 1.49M | 297K | 218K | 18K | 18K | 23K | 32K | 19K | 29K | 63K | 98K | 121K | 154K | 200K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 0 | 636K | 631K | 539K | 215K | 200K | 101K | 115K | 87K | 73K | 32K | 39K | 52K | 59K | 10K | 33K | 27K | 7K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Quick answers to the most common questions about buying LTRX stock.
Lantronix, Inc. (LTRX) generated $9.9M in net cash from operating activities in 2026. This reflects the cash generated directly from core business operations.
Lantronix, Inc. (LTRX) generated $9.3M in free cash flow in 2026. Free cash flow is the cash left over after capital expenditures, which can be used to pay dividends, repurchase shares, or pay down debt.
Lantronix, Inc. (LTRX) spent $0.6M on capital expenditures in 2026. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.
Key Metrics
Top Statement Risk
Cash flow reliant on non-cash addbacks
Metrics are mathematically derived from official filings.
Losses Mask Solid Cash Conversion
Across the last ten quarters, Lantronix reported cumulative operating cash flow of roughly $23.1M against cumulative net losses of about $15.6M, a gap that suggests reported losses understate cash generation largely through non-cash addbacks, based on Lantronix's quarterly cash flow statements.
The OCF-to-net-income ratio is negative in nine of ten quarters simply because the denominator is a loss, so the more useful reading is that every loss-making quarter still produced positive operating cash, ranging from $340K to $3.6M. This divergence appears to be structural rather than incidental, since stock compensation of $1.3M-$2.5M per quarter plus depreciation of roughly $1.0M-$1.9M consistently exceed the reported losses. Investors should treat the loss as economically meaningful nonetheless, since the addbacks that bridge to positive cash flow represent real dilution or non-cash charges rather than earnings power.
Free Cash Flow Steadies After Volatility
Free cash flow totaled roughly $21.7M over the ten-quarter window, with quarterly FCF margins swinging between 0.8% and 11.9% before settling near 5.5% in 2026Q4, a pattern that indicates cash generation is recovering but remains highly sensitive to working capital timing, according to recent SEC filings.
The margin range is unusually wide for a business with essentially fixed capital spending, which implies the volatility is coming from the working capital line rather than operations; 2025Q2's 0.8% FCF margin coincided with a $6.5M net acquisition outflow and a $619K working capital drag. Recent quarters show FCF of $1.7M-$3.5M against net losses of $0.3M-$1.4M, so cash generation appears to be improving faster than reported profitability. Because the trend tracks the income statement's cost-driven loss narrowing rather than a revenue breakout, the durability of this FCF level warrants further investigation against the still-depressed revenue base.
Capital Intensity Minimal, D&A Opaque
Lantronix spent only about $1.4M on capital expenditure across ten quarters, roughly 0.2% to 0.8% of quarterly revenue, while depreciation and amortization reached approximately $11.3M, implying reported D&A is dominated by acquired intangible amortization rather than physical asset consumption, as disclosed in the filings.
Capex running at roughly one-eighth of D&A would normally signal underinvestment, but the $6.5M acquisition in 2025Q2 suggests the gap is largely amortization of acquired technology and customer relationships, not a starved fixed-asset base. The asset-light profile does insulate free cash flow, as capex consumed only about 6% of operating cash flow over the window. Still, heavy intangible amortization means the D&A addback inflates operating cash flow relative to any economic replacement need, so the cash conversion quality looks better than the raw OCF figure alone suggests.
Working Capital Underpins Cash Generation
Working capital releases contributed roughly $8.1M to operating cash flow over ten quarters, including $4.1M in 2025Q3 during a period of revenue contraction, yet only $308K in 2026Q4 as revenue grew 8% year over year, per Lantronix's quarterly cash flow statements.
The largest working capital contributions arrived while revenue was shrinking, which is consistent with receivable and inventory liquidation rather than improved operating efficiency, and may indicate the company was harvesting its balance sheet to fund operations. The sharp deceleration to a $308K contribution in 2026Q4, alongside revenue recovery, suggests the pool of easy working capital cash may be exhausting, raising the question of whether future operating cash flow must be carried by earnings conversion instead. The negative $2.7M working capital swing in 2024Q4 shows the line can reverse quickly, so investors should monitor whether collections keep pace with the revenue rebuild.
Cumulative Earnings Trail Cash Reality
Over the ten quarters presented, cumulative net losses of about $15.6M sit alongside cumulative operating cash inflows near $23.1M, a divergence of roughly $38.7M that appears to be driven principally by $16.8M of stock compensation and $11.3M of depreciation, based on reported figures.
A gap of this magnitude relative to cumulative losses means the accrual base is dominated by non-cash items, so reported net income and cash flow are effectively measuring different things for this business. Working capital supplied a further $8.1M of the difference, implying that only a modest portion of operating cash flow originated from core earnings conversion. If working capital reverses and dilution continues at the current pace, the cumulative gap could narrow without any improvement in underlying profitability, a scenario that would weaken the case built on cash generation.
Cash Flow Quality Masked by Addbacks
Stock-based compensation of roughly $16.8M over ten quarters equals about 73% of the $23.1M in operating cash flow, meaning much of the reported cash generation may reflect non-cash charges that carry real dilution, according to Lantronix's cash flow disclosures.
The cash flow statement also obscures that capital returned to shareholders was negligible — zero dividends across all ten quarters and a single $92K buyback in 2025Q3 — so the retained cash has not yet been validated by any deployment or by debt reduction visible in this dataset. The only significant capital allocation was the $6.5M net acquisition in 2025Q2, whose return on the cash consumed is not evidenced by the subsequent loss-making quarters. Taken together, these items suggest the headline positive free cash flow warrants skepticism as a measure of economic value creation, even as it does provide a genuine liquidity cushion.