MannKind Corporation (MNKD) Cash Flow Statement

The OCF/NI ratio ranged from -1.90 to 13.40 across the ten quarters, with 2026Q2 showing OCF/NI of 0.97 despite a net loss, suggesting that non-cash items like SBC and D&A are significant. The large negative working capital changes in 2025Q4 (-$72.1M) and 2026Q2 (-$19.8M) appear to be the primary drivers of cash flow volatility, not operational deterioration. Investors should monitor whether these swings reflect timing of collaboration payments or inventory build-up, as they obscure the underlying cash generation.

The positive FCF quarters in 2025Q3 and 2024Q4 were driven by favorable working capital swings, while 2026Q2's -$23.5M FCF reflects a $19.8M working capital outflow. Despite revenue accelerating 42.9% YoY, the cash conversion has deteriorated, suggesting that growth is consuming cash rather than generating it. This may indicate that MNKD is funding receivables or inventory to support the Tyvaso DPI ramp, but the sustainability of this pattern warrants close monitoring.

The absolute CapEx of $5.1M in 2026Q2 is the highest in the dataset, yet it remains low relative to revenue, indicating that the Danbury facility is largely built out. The increase may reflect maintenance or expansion for Tyvaso DPI production, but the modest capital intensity suggests that future growth can be supported without significant incremental investment. However, if the company needs to scale capacity for new pipeline candidates, CapEx could rise, pressuring FCF.

The large negative working capital changes in 2025Q4 and 2026Q2 suggest that cash is being tied up in receivables or inventory, possibly due to the timing of Tyvaso DPI shipments or milestone payments. The positive OCF in 2025Q3 and 2024Q4 coincided with smaller working capital outflows, implying that the underlying business generates cash when working capital normalizes. Investors should assess whether these swings are seasonal or indicative of structural inefficiencies in collections or payables.

The absence of shareholder returns indicates that management is prioritizing balance sheet strengthening and growth investments. The large acquisition outflow in 2025Q4 may be related to a partnership or asset purchase, but its nature is not disclosed. Given the historical reliance on convertible debt, investors should monitor whether future cash flows are used to de-lever or fund pipeline development, as this will determine the equity story.

The positive cumulative OCF relative to net income suggests that non-cash charges like D&A and SBC are inflating the gap, but the volatility in working capital has created uneven cash flows. The 2025Q4 acquisition outflow of $347.7M is a one-time item that distorts the cumulative picture, but excluding it, OCF would be even higher. This divergence implies that the company's earnings quality is reasonable, but the timing of cash flows is unpredictable, which may complicate valuation.