LightPath Technologies grew FY2026 revenue 93% to $71.7 million on a full year of G5 Infrared camera shipments, swinging adjusted EBITDA positive and nearly tripling backlog to $110.9 million, while the reported net loss widened to $20.5 million on a $15.6 million non-cash earnout mark-up triggered by that same outperformance.
Revenue nearly doubled to $71.7M as G5 Infrared camera shipments landed — but the reported net loss widened on a $15.6M earnout mark-up
LightPath Technologies closed fiscal 2026 (the year ended June 30, 2026) with revenue of $71.7 million, up 93% from $37.2 million. Almost two-thirds of the increase came from one place: the assemblies and modules product group, where revenue rose from $8.4 million to $31.9 million as G5 Infrared — the infrared camera maker LightPath bought in February 2025 — shipped against what the filing calls "previously announced large defense and security programs."
The reported bottom line moved the other way. Net loss widened to $20.5 million ($0.38 per share) from $14.9 million ($0.36 per share). That deterioration is not an operating story, and the 10-K is explicit about why: a $15.6 million charge for "change in fair value of acquisition liabilities," up $14.1 million year over year, "primarily related to the earnouts associated with the G5 Infrared acquisition, where the amounts earned were greater than the fair values estimated and recorded at the date of acquisition." In plain terms, LightPath agreed to pay the former G5 owners more if the business hit performance targets, G5 beat those targets, and accounting rules require the company to book the higher expected payout as an expense. The charge is a direct consequence of the acquired business outperforming.
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36.0%
27.2%
+8.8 pts
Operating loss
$(19.65)M
$(11.82)M
loss widened $7.83M
Net loss
$(20.55)M
$(14.87)M
loss widened $5.67M
Loss per share (basic & diluted)
$(0.38)
$(0.36)
$(0.02)
Adjusted EBITDA
$4.23M (6% of revenue)
$(5.06)M (-14%)
+$9.29M swing
Assemblies & modules revenue
$31.88M (44% of revenue)
$8.37M (23%)
+281%
Total sales backlog (period end)
$110.94M
$37.39M
+197%
Where the growth actually came from
LightPath reports one operating segment (optics) but breaks revenue into four product groups. The composition shifted sharply:
Product group
FY2026
FY2025
YoY Change
Infrared components
$21.20M
$13.91M
+52%
Visible components
$15.49M
$11.74M
+32%
Assemblies and modules
$31.88M
$8.37M
+281%
Engineering services
$3.15M
$3.19M
-1%
Total
$71.72M
$37.20M
+93%
Two mechanical effects account for a large share of the headline growth rate and should be stripped out before reading it as organic demand. First, fiscal 2026 included a full year of G5 Infrared, whereas fiscal 2025 included "less than five months." Second, Amorphous Materials (AML), a Texas chalcogenide-glass maker acquired on January 21, 2026 for $7.0 million cash plus up to $3.0 million in stock earnouts, contributed for roughly five months — management puts AML at about 3% of fiscal 2026 revenue.
Within the $23.5 million increase in assemblies and modules, the filing attributes approximately $23.1 million to higher G5 Infrared camera and module sales. Within the $7.3 million increase in infrared components, $1.3 million is G5 coating services (period effect), $2.2 million is AML, and the residual $3.8 million is described as "primarily due to increases in sales to defense and industrial customers in Europe" — that $3.8 million is the cleanest read on organic component demand. Visible components grew 32% on industrial customers across the U.S., Asia and Europe "including several new programs."
Engineering services was flat at $3.2 million, and the reason matters for how to read fiscal 2027: revenue from Visimid's Lockheed Martin contract was lower than the prior year on timing, offset by a non-recurring engineering project for another defense customer. Management expects engineering revenue from the current Lockheed program "will decline, as the program transitions from development into production" — a transition that, if it works as designed, moves the dollars into the higher-volume product groups rather than losing them.
The margin improvement is mix, not just volume
Gross margin — the share of revenue left after the direct cost of making the product, before overhead, interest and tax — rose from 27.2% to 36.0%. The 10-K attributes this to three things: higher sales across nearly all product groups, better margins within each product group, and mix. On mix, the company is specific: assemblies and modules went from 23% of revenue to 44%, "and these products typically have higher gross margins than the component product groups."
Two adjustments to keep the improvement honest in both directions. The fiscal 2025 base was depressed by roughly $0.5 million of extra inventory reserve charges, "primarily related to visible components where revenue had declined for the past several years" — so part of the year-over-year gain is a weak comparison, not fresh progress. Working the other way, the mix shift toward assemblies is structural rather than a one-year quirk, given where the backlog sits.
Below the gross line, operating leverage was real but partial. SG&A rose 56% to $24.7 million — slower than the 93% revenue growth, so SG&A fell from 42.5% to 34.4% of revenue — driven by a full year of G5 costs ($2.3 million), AML including acquisition costs ($1.0 million), higher sales and marketing spend, IT spend to meet customer security standards, filling vacant executive roles, and accruing employee incentive compensation. New product development rose 24% to $3.8 million.
The useful way to see the underlying operating result is to remove the earnout remeasurement, which is non-cash and backward-looking: operating loss excluding the $15.6 million change in fair value of acquisition liabilities was about $4.0 million in fiscal 2026 versus about $10.3 million on the same basis in fiscal 2025. Adjusted EBITDA — the company's own non-GAAP measure, which strips out interest, tax, depreciation, amortization, stock compensation, the earnout marks, acquisition costs, debt extinguishment and FX — swung from negative $5.1 million to positive $4.2 million, and was positive $2.1 million (10% of revenue) in the June quarter alone versus negative $2.0 million a year earlier.
Takeaway: The $5.7 million increase in net loss and the $9.3 million swing to positive adjusted EBITDA describe the same year, and the gap between them is almost entirely the $15.6 million non-cash earnout mark-up that exists because G5 Infrared beat the targets set at acquisition. The number that constrains fiscal 2027 is neither of those: it is the $85.6 million of the $110.9 million backlog that customers have requested for delivery within one year, roughly 1.2x all of fiscal 2026 revenue, against a company that still burned $10.2 million of operating cash.
Backlog nearly tripled — and got more concentrated
Total backlog ended fiscal 2026 at $110.9 million, up 197% from $37.4 million a year earlier. The quarterly progression shows the step-change happened in the September 2025 quarter (from $37.4 million to $86.0 million) and then flattened: $97.8 million, $110.6 million, and $110.9 million — flat quarter over quarter in Q4. Of the $73.6 million increase, approximately $58.0 million is "orders from a leading global technology customer for advanced infrared camera systems expected to ship in calendar year 2026 and 2027." The company also cites a significant contract renewal for advanced infrared optics for "a critical international military program," and $1.1 million of backlog acquired with AML.
The concentration that comes with this is measurable. In fiscal 2026 the top three customers were 37% of revenue, with the largest at 24%; in fiscal 2025 the top three were 23% with the largest at 9%. Receivables are more concentrated still — the top three customers were 44% of the June 30, 2026 accounts receivable balance, one of them alone at 27%. Management notes concentration "is not static" and that two of the three largest fiscal 2025 customers were no longer in the top three for fiscal 2026, which is fair, but the operating reality is that a single program now carries a large share of near-term revenue and of the cash that has to be collected against it.
The germanium substitution story is the reason this is more than a defense-cycle trade
LightPath's structural argument rests on materials. Germanium is the standard lens material for thermal imaging; the company states over 60% of global supply originates in China, with Russia historically second, and that export restrictions have taken the price "from around $1,000 per Kg a few years ago, to a price of over $6,000 per Kg today," with supply for many customers simply unavailable. LightPath's counter is its BlackDiamond family of chalcogenide glasses — U.S.-made, including the BDNL types licensed exclusively from the Naval Research Laboratory — which it has used to redesign two G5 cooled midwave cameras with germanium removed entirely. The AML acquisition adds AMTIR materials and glass-melting capacity to that portfolio.
This is a genuine switching-cost dynamic rather than a marketing claim: the filing notes that changing optical material "generally requires a customer to requalify an existing design," so adoption cycles are long but "material selections tend to persist for the life of a program once qualified." That cuts both ways — it slows conversion, but wins are durable.
Balance sheet and cash: funded, but not yet self-funding
LightPath ended the year with $93.2 million of cash and $103.7 million of working capital, with the only loan payable outstanding being a $0.2 million equipment loan at its Latvian subsidiary (the acquisition notes used to fund G5 were redeemed in December 2025). That position is the product of two equity raises, not operations: the December 2025 offering of 8,912,500 shares at $7.75 and the June 2026 offering in which the company sold 3,571,400 shares at $14.00 for roughly $50.0 million of gross proceeds to it. Financing activities provided $111.0 million net, including about $120.2 million of net proceeds from equity placements less $5.7 million of loan and finance-lease principal payments. Weighted-average shares rose from 40.9 million to 53.4 million, so per-share loss barely moved despite a larger absolute loss — dilution and loss growth roughly offset.
Operations consumed $10.2 million, worse than the $8.3 million consumed in fiscal 2025, for reasons that are mostly growth-related rather than deteriorating: $3.8 million of the first G5 earnout payment was classified in operating activities (the portion above the acquisition-date liability), and $9.6 million went into working capital, "largely driven by accounts receivable and inventory due to the growth in revenue, as well as supplier prepayments for critical materials with long lead times." Capital expenditure quadrupled to $6.3 million, for glass fabrication capacity, metrology and infrared coating equipment. Working-capital efficiency actually improved on both standard measures: average days sales outstanding fell to 56 from 67 (within the company's own sub-60 target), and average days' cost of sales in inventory fell to 115 from 130. Accumulated deficit stands at $251.3 million.
Exiting China
On July 23, 2026 — after year-end — LightPath agreed to sell 100% of LPOIZ, its Zhenjiang, China subsidiary, for $4.5 million in cash. The terms deserve attention. The buyer is owned by a Mr. Leo Zheng "and certain members of the Company's current management team," making this a related-party transaction. The price is payable over up to five years at a minimum of $500,000 per year with 4% financing interest, so LightPath is effectively vendor-financing its own exit rather than collecting cash at close. LPOIZ will keep supplying LightPath for five years at cost plus 10%, with the markup ratcheting up 5 points per $1 million of principal repaid, to a terminal cost plus 30%.
The transaction, expected to close in September 2026, removes 104 of the company's 425 employees and will reduce visible-components revenue — the group that grew 32% this year and where roughly 48% of total company revenue already comes from outside the U.S. It also converts a China manufacturing footprint into a supply agreement whose cost rises as the buyer pays down the note, which is a real, if modest, future gross-margin headwind on whatever volume continues to flow through Zhenjiang.
Outlook
The 10-K contains no revenue or earnings guidance. What management does commit to in the filing: it "anticipate[s] continued improvement in our cash flows provided by operations in future years," it "anticipate[s] a higher level of capital expenditures during fiscal year 2027, to support the demand currently in backlog and to enhance our capacity and capabilities," it expects "moderate growth for our infrared components" as germanium alternatives are designed in, it expects the Lockheed engineering revenue to decline as that program moves to production while new programs generate "comparable or higher" engineering services revenue, and it expects existing annual and multi-year contracts to be renewed. It states it has "sufficient capital to fund the continued expansion of our operations" in the short term, while flagging that further acquisitions could require raising more.
Our read: fiscal 2027 revenue is unusually pre-committed for a company this size — $85.6 million of backlog is scheduled for delivery inside the year, against $71.7 million of fiscal 2026 revenue — but three things determine whether that converts into the first genuinely profitable year. The first is execution on a single large camera program, since one customer at 24% of revenue and 27% of receivables means a schedule slip or requalification delay shows up immediately in both the income statement and cash. The second is whether gross margin holds near 36% as the mix stays weighted to assemblies while the LPOIZ supply arrangement gets progressively more expensive. The third is working capital: the company turned adjusted-EBITDA positive while still consuming $10.2 million of operating cash, and with capex guided higher, a further backlog-driven build in receivables and inventory could keep operating cash negative even in a profitable year. The $93.2 million cash balance makes that survivable rather than existential, which is the material difference between this balance sheet and the one LightPath carried into fiscal 2025.
Source: LightPath Technologies, Inc. Form 10-K for the fiscal year ended June 30, 2026, filed with the SEC on September 11, 2026.