Cash flow generation remains highly volatile, evidenced by a $72.1 million working capital outflow in 2025Q4 and an operating cash flow to net income ratio that fluctuated from -0.48 in 2025Q1 to 15.47 in 2023Q4.
| Metric | TTM | Dec'25 | Dec'24 | Dec'23 | Dec'22 | Dec'21 | Dec'20 | Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 | Dec'08 | Dec'07 | Dec'06 | Dec'05 | Dec'04 | Dec'03 | Dec'02 |
|---|
| Cash from Operations | 18.83M | 18.25M | 42.51M | 34.09M | -80.7M | -61.71M | -28.13M | -88.48M | -37.73M | -64.78M | -78.09M | -57.23M | 4.09M | -128.73M | -119.86M | -123.84M | -148.65M | -184.08M | -271.29M | -245.15M | -189.79M | -101.23M | -59.91M | -52.77M | -48.67M |
| Operating CF Margin % | - | 5.23% | 14.89% | 17.14% | -80.88% | -81.8% | -43.18% | -140.36% | -135.44% | -551.54% | -44.68% | - | - | - | -342457.14% | -247674% | -159843.01% | - | -1356440% | -2451460% | -189794% | - | - | - | - |
| Operating CF Growth % | 161.55% | -57.06% | 24.69% | 142.25% | -30.77% | -119.39% | 68.21% | -134.51% | 41.75% | 17.05% | -36.44% | -1500.69% | 103.17% | -7.4% | 3.21% | 16.69% | 19.25% | 32.14% | -10.66% | -29.16% | -87.49% | -68.97% | -13.53% | -8.43% | - |
| Net Income | -23.91M | 5.86M | 27.59M | -11.94M | -87.4M | -80.93M | -57.24M | -51.9M | -86.97M | -117.33M | 125.66M | -368.44M | -198.38M | -191.49M | -169.37M | -160.8M | -170.56M | -220.1M | -303.04M | -293.19M | -230.55M | -114.34M | -75.99M | -65.88M | -206.26M |
| Depreciation & Amortization | 15.97M | 12.28M | 9.04M | 5.8M | 6.29M | 5.47M | 3.33M | 2.15M | 1.7M | 3.53M | 4.16M | 13.28M | 18.57M | 14.06M | 14.4M | 15.91M | 17.32M | 18.73M | 12.29M | 8.97M | 8.52M | 7.39M | 7.18M | 7.66M | 5.07M |
| Stock-Based Compensation | 14.49M | 24.2M | 21.36M | 17.65M | 0 | 12.2M | 6.51M | 6.2M | 6.86M | 4.85M | 5.13M | 8.72M | 48.62M | 45.19M | 13.29M | 11.2M | 13.58M | 20.22M | 24.79M | 17.64M | 14.67M | 0 | 4.5M | 0 | 0 |
| Deferred Taxes | -4.97M | -4.97M | 0 | 0 | 0 | 12.64M | 10.65M | -4.57M | 0 | 12.94M | -79.57M | 180.43M | 1.49M | 817K | 2.04M | 160.8M | 644K | 12.87M | 213K | -10.6M | -14.59M | 0 | -4.5M | 0 | 0 |
| Other Non-Cash Items | 106.69M | 67.23M | 21M | 7.96M | 24.47M | 6.63M | 18.4M | -28M | 5.71M | 3.67M | 5.79M | 67.81M | -10K | 2K | 6.49M | -160.81M | -6K | -7K | -237K | 18.59M | 16.95M | -1.86M | 7.32M | 7.34M | 151.65M |
| Working Capital Changes | -89.43M | -86.35M | -36.47M | 14.63M | -24.05M | -17.73M | -9.78M | -12.36M | 36.68M | 27.57M | -139.27M | 40.97M | 133.79M | 2.7M | 13.28M | 9.86M | -9.64M | -15.79M | -5.3M | 13.44M | 15.21M | 7.58M | 1.58M | -1.89M | 881K |
| Change in Receivables | 22.62M | -4.76M | 2.65M | 2.35M | -11.81M | -776K | -705K | 504K | -1.34M | -2.49M | -302K | 51.58M | -63.51M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | -31.47M | 10.4M | -3.2M | 4.57M | -5.67M | -4.08M | -1.31M | -558K | -3.15M | -3.3M | -2.33M | -26.43M | -9.67M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | -7.85M | -16.71M | -2.79M | -1.47M | 4.1M | 1.37M | 793K | -593K | -1.6M | 3.8M | -12.12M | 8.41M | 3.62M | -1.07M | 44K | 2.67M | -4.29M | -6.37M | -14.62M | 16.27M | 7.17M | 0 | -2.28M | 0 | 0 |
| Cash from Investing | -292.04M | -304.8M | -96.65M | -1.99M | 4.87M | -151.54M | 15.22M | -22.84M | -234K | 16.68M | -1.13M | -10.2M | -24.1M | -7.99M | -560K | -2.94M | -11.72M | -3.05M | -99.93M | 38.66M | -48.27M | -94.4M | -9.6M | 4.13M | -45.35M |
| Capital Expenditures | -6.12M | -4.57M | -9.69M | -42.44M | -7.59M | -11.47M | -4.78M | -2.56M | -354K | 0 | -1.14M | -10.29M | -24.1M | -7.99M | -637K | -6.86M | -9.54M | -18.85M | -82.45M | -78.26M | -20.77M | -17.17M | -6.89M | -5.18M | -34.15M |
| CapEx % of Revenue | 1.7% | 1.31% | 3.4% | 21.33% | 7.61% | 15.2% | 7.34% | 4.07% | 1.27% | - | 0.65% | - | - | - | 1820% | 13716% | 10260.22% | - | 412265% | 782620% | 20773% | - | - | - | - |
| Acquisitions | -347.74M | -347.74M | 0 | 0 | -15.34M | -56.06M | -3.98M | 0 | 120K | 24K | 17K | 82K | 0 | 0 | 0 | 0 | 0 | -70K | 0 | 0 | 0 | 90K | -75K | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | -10M | -16.41M | 128.71M | 382K | 32.8M | 56.06M | 20M | -300K | 120K | 16.68M | 17K | 82K | 0 | 0 | 77K | 93K | 0 | 70K | 70K | 0 | 32K | 583K | 75K | 75K | 0 |
| Cash from Financing | 278.74M | 315.1M | -137.27M | 136.61M | 21.41M | 270.27M | 49.85M | 69.86M | 61.29M | 73.56M | 43.04M | 5.67M | 70.06M | 145.67M | 179.58M | 63.39M | 196.42M | 189.51M | 30.59M | 255.21M | 501.58M | 172.68M | 101.48M | 82.85M | 60.2M |
| Debt Issued (Net) | 38.79M | 0 | -133.17M | -6.86M | -1.09M | 281.08M | 14.87M | 63.7M | -5M | 15.43M | -5M | -64.29M | 60M | 4.5M | 12.75M | 53M | 182.78M | 135M | 30M | 0 | 111.27M | 0 | 0 | 1.41M | -24K |
| Equity Issued (Net) | 7.57M | -3.26M | -6.09M | 6.89M | 22.56M | 1.89M | 23.66M | 3.2M | 70.52M | 58.25M | 50.89M | 68.68M | 12.34M | 53.52M | 167.74M | 10.94M | 17.02M | 61.51M | 902K | 255.74M | 390.66M | 172.68M | 84.73M | 49.59M | 58.91M |
| 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 |
| Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -26.91M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -1.03M | 0 |
| Other Financing | 232.38M | 318.36M | 1.99M | 136.58M | -62K | -12.7M | 11.31M | 2.97M | -4.22M | -120K | -2.85M | 1.27M | -2.28M | 87.64M | -906K | -547K | -3.39M | -7M | -317K | -524K | -340K | 0 | 16.75M | 31.85M | 1.31M |
| Net Change in Cash | 5.53M | 28.55M | -191.4M | 168.71M | -54.42M | 57.02M | 36.94M | -41.46M | 23.33M | 25.46M | -36.18M | -61.77M | 50.05M | 8.95M | 59.16M | -63.38M | 36.04M | 2.37M | -340.64M | 48.73M | 263.52M | -22.95M | 31.97M | 34.2M | -33.81M |
| Free Cash Flow | 12.72M | 13.69M | 32.82M | -8.35M | -88.29M | -73.17M | -32.91M | -91.05M | -38.09M | -64.78M | -79.23M | -67.52M | -20.01M | -136.72M | -120.5M | -130.69M | -158.2M | -202.94M | -353.74M | -323.41M | -210.57M | -118.4M | -66.81M | -57.95M | -82.81M |
| FCF Margin % | 3.53% | 3.92% | 11.49% | -4.2% | -88.49% | -97% | -50.52% | -144.43% | -136.71% | -551.54% | -45.34% | - | - | - | -344277.14% | -261390% | -170103.23% | - | -1768705% | -3234080% | -210567% | - | - | - | - |
| FCF Growth % | -41.7% | -58.29% | 493.17% | 90.55% | -20.65% | -122.34% | 63.85% | -139.07% | 41.21% | 18.24% | -17.35% | -237.4% | 85.36% | -13.46% | 7.8% | 17.38% | 22.05% | 42.63% | -9.38% | -53.59% | -77.85% | -77.23% | -15.27% | 30.02% | - |
| FCF per Share | 0.04 | 0.04 | 0.12 | -0.03 | -0.34 | -0.29 | -0.15 | -0.47 | -0.26 | -0.62 | -0.86 | -0.83 | -0.26 | -2.28 | -3.33 | -5.36 | -6.96 | -9.52 | -17.42 | -20.20 | -20.66 | -14.85 | -13.24 | -15.67 | -30.74 |
| FCF Conversion (FCF/Net Income) | -0.53x | 3.11x | 1.54x | -2.86x | 0.92x | 0.76x | 0.49x | 1.70x | 0.43x | 0.55x | -0.62x | 0.16x | -0.02x | 0.67x | 0.71x | 0.77x | 0.87x | 0.84x | 0.90x | 0.84x | 0.82x | 0.89x | 0.79x | 0.80x | 0.24x |
| Interest Paid | 2.56M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.76M | 7.73M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.31M | 4.35M | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 869K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 240K | 51K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2K | 3K | 0 | 0 | 0 | 0 | 0 |
Tyvaso royalty dependency
As reported in financial statements, MannKind's operating cash flow to net income ratio has fluctuated wildly, ranging from a low of -0.48 in 2025Q1 to a high of 15.47 in 2023Q4, suggesting that reported net income is an unreliable proxy for actual cash generation.
The significant divergence between net income and operating cash flow indicates that non-cash items and working capital swings frequently distort the company's bottom line. Investors should monitor whether this volatility stems from the timing of milestone payments or underlying inefficiencies in converting product sales into realized cash.
Based on recent SEC filings, MannKind's free cash flow has oscillated between positive peaks of $22.4 million in 2025Q3 and negative outflows of $10.0 million in 2025Q4, highlighting a lack of sustained cash flow generation despite the growth of the Tyvaso DPI partnership.
The inability to maintain positive free cash flow suggests that the company's operational scaling is still heavily burdened by fixed costs and periodic investment requirements. This inconsistency warrants further investigation into whether the business model can achieve self-sustaining cash flow without recurring reliance on external financing or partnership milestones.
According to quarterly data, working capital changes have been a major drag on cash flow, notably reaching a $72.1 million outflow in 2025Q4, which significantly impacted the company's ability to retain cash from its core operations during that period.
These substantial fluctuations in working capital suggest potential challenges in managing inventory levels or timing of receivables collection. Such erratic movements in the cash flow statement may indicate that the company's operational cycle is not yet optimized for predictable cash conversion.
As evidenced by financial disclosures, MannKind has maintained a disciplined approach to capital expenditure, with CapEx as a percentage of revenue remaining low, peaking at 10.0% in 2023Q4 and generally trending downward toward the 1.5% to 2.0% range in recent quarters.
The relatively low capital intensity suggests that the Danbury manufacturing facility is currently operating within its existing capacity, requiring only maintenance-level investment rather than massive expansion. This capital efficiency is a positive signal, provided that current infrastructure can support future volume growth without requiring significant new outlays.
Based on reported figures, MannKind has prioritized cash preservation over shareholder returns, with no dividends paid and minimal share repurchases, while utilizing significant cash for a $347.7 million acquisition in 2025Q4, marking a shift toward inorganic growth strategies.
The decision to deploy substantial capital toward acquisitions rather than debt reduction or shareholder distributions suggests management is focused on expanding the platform's capabilities. Investors should monitor the return on this investment, as it represents a significant departure from the company's historical focus on internal product development.
Quick answers to the most common questions about buying MNKD stock.
MannKind Corporation (MNKD) generated $18.3M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
MannKind Corporation (MNKD) generated $13.7M in free cash flow in 2025. Free cash flow is the cash left over after capital expenditures, which can be used to pay dividends, repurchase shares, or pay down debt.
MannKind Corporation (MNKD) spent $4.6M on capital expenditures in 2025. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.