8-K Announcements
6Feb 25, 2026·SEC
Dec 12, 2025·SEC
Nov 6, 2025·SEC
Alector, Inc. (ALEC) fundamental analysis — strengths, weaknesses & financial health based on data analysis
* These insights are generated automatically based on available financial data. Please conduct your own research before making investment decisions.
Alector, Inc. (ALEC) stock price & volume — 10-year historical chart
Alector, Inc. (ALEC) revenue, earnings & EPS growth — 3, 5 & 10-year CAGR
Alector, Inc. (ALEC) EPS & revenue vs analyst estimates — last 4 quarters
| Quarter | Date | EPS (Act vs Est) | Revenue (Act vs Est) |
|---|---|---|---|
| Q1 2026Latest | Feb 25, 2026 | $0.34vs $0.39+12.8% | $6Mvs $2M+218.6% |
| Q4 2025 | Nov 6, 2025 | $0.34vs $0.42+19.0% | $3Mvs $2M+82.8% |
| Q3 2025 | Aug 7, 2025 | $0.30vs $0.45+33.3% | $8Mvs $3M+180.7% |
| Q2 2025 | May 8, 2025 | $0.41vs $0.44+6.8% | $4Mvs $4M-13.6% |
Alector, Inc. (ALEC) competitors in Neuroscience and Psychiatry Therapies — business model, growth, and fundamentals comparison
Alector, Inc. (ALEC) vs competitors — business, growth, and fundamentals comparison against the closest industry rivals.
Alector, Inc. (ALEC) annual income statement — 10-year revenue, gross profit & net income history
| Line item | Dec'17 | Dec'18 | Dec'19 | Dec'20 | Dec'21 | Dec'22 | Dec'23 | Dec'24 | Dec'25 |
|---|---|---|---|---|---|---|---|---|---|
| Sales/Revenue | 3.73M | 27.68M | 21.22M | 21.1M | 207.09M | 133.62M | 97.06M | 100.56M | 21.05M |
| Revenue Growth % | 797.84% | 641.02% | -23.33% | -0.57% | 881.54% | -35.48% | -27.36% | 3.6% | -79.07% |
| Cost of Goods Sold | 29.91M | 73.03M | 100.53M | 156.87M | 189.41M | 0 | 8.85M | 0 | 0 |
| COGS % of Revenue | 800.83% | 263.87% | 473.76% | 743.53% | 91.46% | - | 9.12% | - | - |
| Gross Profit | -26.18M▲ 0% | -45.35M▼ 73.3% | -79.31M▼ 74.9% | -135.77M▼ 71.2% | 17.68M▲ 113.0% | 133.62M▲ 655.8% | 88.21M▼ 34.0% | 100.56M▲ 14.0% | 0▼ 100.0% |
| Gross Margin % | -700.83% | -163.87% | -373.76% | -643.53% | 8.54% | 100% | 90.88% | 100% | - |
| Gross Profit Growth % | -97.44% | -73.27% | -74.87% | -71.19% | 113.02% | 655.84% | -33.98% | 13.99% | -100% |
| Operating Expenses | 36.41M | 84.97M | 35.09M | 59.4M | 55.04M | 271.45M | 239.95M | 245.56M | 177.05M |
| OpEx % of Revenue | 974.94% | 306.99% | 165.39% | 281.56% | 26.58% | 203.16% | 247.22% | 244.19% | 841.3% |
| Selling, General & Admin | 6.5M | 11.93M | 33.94M | 59.4M | 55.04M | 61.03M | 56.69M | 59.62M | 53.99M |
| SG&A % of Revenue | 174.11% | 43.12% | 159.94% | 281.56% | 26.58% | 45.68% | 58.4% | 59.28% | 256.53% |
| Research & Development | 29.91M | 73.03M | 100.53M | 156.87M | 189.41M | 210.42M | 192.12M | 185.94M | 123.06M |
| R&D % of Revenue | 800.83% | 263.87% | 473.76% | 743.53% | 91.46% | 157.48% | 197.93% | 184.91% | 584.77% |
| Other Operating Expenses | 199K | 5.04M | -99.37M | -156.87M | -189.41M | 0 | -8.85M | 0 | 0 |
| Operating Income | -32.68M▲ 0% | -57.29M▼ 75.3% | -114.4M▼ 99.7% | -195.17M▼ 70.6% | -37.36M▲ 80.9% | -137.83M▼ 268.9% | -151.74M▼ 10.1% | -145M▲ 4.4% | -156.01M▼ 7.6% |
| Operating Margin % | -874.94% | -206.99% | -539.16% | -925.08% | -18.04% | -103.16% | -156.33% | -144.19% | -741.3% |
| Operating Income Growth % | -115.96% | -75.31% | -99.7% | -70.6% | 80.86% | -268.93% | -10.09% | 4.44% | -7.59% |
| EBITDA | -32M | -56.27M | -110.63M | -187.91M | -29.05M | -129.36M | -142.89M | -136.16M | -156.01M |
| EBITDA Margin % | -856.73% | -203.31% | -521.37% | -890.65% | -14.03% | -96.82% | -147.22% | -135.4% | -741.3% |
| EBITDA Growth % | -114.31% | -75.85% | -96.61% | -69.86% | 84.54% | -345.38% | -10.46% | 4.71% | -14.58% |
| D&A (Non-Cash Add-back) | 680K | 1.02M | 3.77M | 7.26M | 8.31M | 8.47M | 8.85M | 8.84M | 0 |
| EBIT | -32.68M | -57.29M | -113.25M | -195.17M | -37.36M | -137.83M | -151.74M | -145M | 0 |
| Net Interest Income | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Interest Income | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Interest Expense | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Income/Expense | 199K | 5.04M | 9.02M | 4.95M | 1.03M | 7.78M | 26.56M | 26.08M | 13.25M |
| Pretax Income | -32.48M▲ 0% | -52.25M▼ 60.9% | -105.39M▼ 101.7% | -190.23M▼ 80.5% | -36.33M▲ 80.9% | -130.06M▼ 258.0% | -125.18M▲ 3.7% | -118.92M▲ 5.0% | -142.76M▼ 20.0% |
| Pretax Margin % | -869.61% | -188.78% | -496.65% | -901.64% | -17.54% | -97.33% | -128.97% | -118.26% | -678.36% |
| Income Tax | 0 | 0 | 0 | 0 | 0 | 3.25M | 5.21M | 128K | 168K |
| Effective Tax Rate % | 0% | 0% | 0% | 0% | 0% | -2.5% | -4.16% | -0.11% | -0.12% |
| Net Income | -32.48M▲ 0% | -52.25M▼ 60.9% | -105.39M▼ 101.7% | -190.23M▼ 80.5% | -36.33M▲ 80.9% | -133.31M▼ 267.0% | -130.39M▲ 2.2% | -119.05M▲ 8.7% | -142.93M▼ 20.1% |
| Net Margin % | -869.61% | -188.78% | -496.65% | -901.64% | -17.54% | -99.77% | -134.34% | -118.39% | -679.16% |
| Net Income Growth % | -114.96% | -60.86% | -101.7% | -80.51% | 80.9% | -266.95% | 2.19% | 8.7% | -20.06% |
| Net Income (Continuing) | -32.48M | -52.25M | -105.39M | -190.23M | -36.33M | -133.31M | -130.39M | -119.05M | -142.93M |
| Discontinued Operations | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Minority Interest | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| EPS (Diluted) | -0.63▲ 0% | -0.76▼ 20.6% | -1.62▼ 113.2% | -2.45▼ 51.2% | -0.45▲ 81.6% | -1.62▼ 260.0% | -1.56▲ 3.7% | -1.23▲ 21.2% | -1.39▼ 13.0% |
| EPS Growth % | 64.61% | -20.63% | -113.16% | -51.23% | 81.63% | -260% | 3.7% | 21.15% | -13.01% |
| EPS (Basic) | -0.63 | -0.76 | -1.62 | -2.45 | -0.45 | -1.62 | -1.56 | -1.23 | -1.39 |
| Diluted Shares Outstanding | 51.22M | 68.37M | 61.73M | 77.76M | 80.42M | 82.47M | 83.73M | 96.59M | 103M |
| Basic Shares Outstanding | 51.22M | 68.37M | 61.73M | 77.76M | 80.42M | 82.47M | 83.73M | 96.59M | 103M |
| Dividend Payout Ratio | - | - | - | - | - | - | - | - | - |
Alector, Inc. (ALEC) balance sheet — assets, liabilities & shareholders' equity
| Line item | Dec'17 | Dec'18 | Dec'19 | Dec'20 | Dec'21 | Dec'22 | Dec'23 | Dec'24 | Dec'25 |
|---|---|---|---|---|---|---|---|---|---|
| Total Current Assets | 232.97M | 293.18M | 357.44M | 421.51M | 749.71M | 726.43M | 565.81M | 424.82M | 266.45M |
| Cash & Short-Term Investments | 32.45M | 290.41M | 353.07M | 413.31M | 735.25M | 712.85M | 548.86M | 413.4M | 256.02M |
| Cash Only | 32.45M | 65.47M | 89.64M | 49.97M | 329.15M | 154.32M | 74.56M | 33.02M | 65.8M |
| Short-Term Investments | 0 | 224.94M | 263.43M | 363.34M | 406.1M | 558.53M | 474.31M | 380.38M | 190.22M |
| Accounts Receivable | 200.24M | 0 | 0 | 0 | 7.39M | 2.59M | 0 | 0 | 0 |
| Days Sales Outstanding | 19.57K | - | - | - | 13.03 | 7.07 | - | - | - |
| Inventory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Days Inventory Outstanding | - | - | - | - | - | - | - | - | - |
| Other Current Assets | 0 | 2.77M | 0 | 0 | 0 | 0 | 16.95M | 11.42M | 10.43M |
| Total Non-Current Assets | 3.09M | 15.18M | 64.48M | 66.74M | 64.94M | 61.21M | 56.02M | 43.49M | 26.79M |
| Property, Plant & Equipment | 2.83M | 10.94M | 62.33M | 62.65M | 57.9M | 53.33M | 47.06M | 37.1M | 24.55M |
| Fixed Asset Turnover | 1.32x | 2.53x | 0.34x | 0.34x | 3.58x | 2.51x | 2.06x | 2.71x | 0.86x |
| Goodwill | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Intangible Assets | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Long-Term Investments | 0 | 1.47M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Non-Current Assets | 252K | 2.77M | 2.15M | 4.09M | 7.05M | 7.88M | 8.96M | 6.39M | 2.23M |
| Total Assets | 236.06M▲ 0% | 308.36M▲ 30.6% | 421.91M▲ 36.8% | 488.25M▲ 15.7% | 814.66M▲ 66.9% | 787.65M▼ 3.3% | 621.83M▼ 21.1% | 468.3M▼ 24.7% | 293.24M▼ 37.4% |
| Asset Turnover | 0.02x | 0.09x | 0.05x | 0.04x | 0.25x | 0.17x | 0.16x | 0.21x | 0.07x |
| Asset Growth % | 336.25% | 30.63% | 36.83% | 15.72% | 66.85% | -3.32% | -21.05% | -24.69% | -37.38% |
| Total Current Liabilities | 27.4M | 13.04M | 61.97M | 68.09M | 139.56M | 93.81M | 177.95M | 125.06M | 69.5M |
| Accounts Payable | 1.14M | 126K | 278K | 3M | 4.75M | 4.19M | 3.77M | 2.21M | 1.69M |
| Days Payables Outstanding | 13.91 | 0.63 | 1.01 | 6.99 | 9.15 | - | 155.73 | - | - |
| Short-Term Debt | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.42M |
| Deferred Revenue (Current) | 18.98M | 34.91M | 30.16M | 23.89M | 90.8M | 48.23M | 82.97M | 23.66M | 6.68M |
| Other Current Liabilities | 5.6M | 9.56M | 5.73M | 7.29M | 11.66M | 12.76M | 54.74M | 54.55M | 51.71M |
| Current Ratio | 8.50x | 22.48x | 5.77x | 6.19x | 5.37x | 7.74x | 3.18x | 3.40x | 3.83x |
| Quick Ratio | 8.50x | 22.48x | 5.77x | 6.19x | 5.37x | 7.74x | 3.18x | 3.40x | 3.83x |
| Cash Conversion Cycle | - | - | - | - | - | - | - | - | - |
| Total Non-Current Liabilities | 260.69M | 392.71M | 165.2M | 152.63M | 374.38M | 479.4M | 309.72M | 216.44M | 193.09M |
| Long-Term Debt | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.39M | 26.81M |
| Capital Lease Obligations | 0 | 0 | 41.47M | 43.74M | 39.81M | 35.27M | 30.46M | 24.38M | 0 |
| Deferred Tax Liabilities | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Non-Current Liabilities | 77.54M | 7.57M | 493K | 472K | 158K | 759K | 68.42M | 10.51M | 166.27M |
| Total Liabilities | 288.09M | 405.76M | 227.17M | 220.72M | 513.93M | 573.21M | 487.67M | 341.5M | 262.59M |
| Total Debt | 0 | 0 | 48.04M | 51.26M | 47.6M | 43.33M | 38.92M | 42.52M | 36.23M |
| Net Debt | -32.45M | -65.47M | -41.6M | 1.29M | -281.55M | -111M | -35.64M | 9.5M | -29.57M |
| Debt / Equity | - | - | 0.25x | 0.19x | 0.16x | 0.20x | 0.29x | 0.34x | 1.18x |
| Debt / EBITDA | - | - | - | - | - | - | - | - | - |
| Net Debt / EBITDA | - | - | - | - | - | - | - | - | - |
| Interest Coverage | - | - | - | - | - | - | - | - | - |
| Total Equity | -52.03M▲ 0% | -97.4M▼ 87.2% | 194.74M▲ 299.9% | 267.53M▲ 37.4% | 300.72M▲ 12.4% | 214.44M▼ 28.7% | 134.16M▼ 37.4% | 126.8M▼ 5.5% | 30.65M▼ 75.8% |
| Equity Growth % | -108.91% | -87.19% | 299.95% | 37.38% | 12.41% | -28.69% | -37.44% | -5.48% | -75.83% |
| Book Value per Share | -1.02 | -1.42 | 3.15 | 3.44 | 3.74 | 2.60 | 1.60 | 1.31 | 0.30 |
| Total Shareholders' Equity | -52.03M | -97.4M | 194.74M | 267.53M | 300.72M | 214.44M | 134.16M | 126.8M | 30.65M |
| Common Stock | 1K | 1K | 7K | 8K | 8K | 8K | 8K | 9K | 11K |
| Retained Earnings | -62.19M | -114.44M | -219.82M | -410.05M | -446.38M | -579.69M | -710.08M | -829.13M | -972.06M |
| Treasury Stock | 0 | 193.44M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Accumulated OCI | -980K | -42K | 142K | 614K | -943K | -4.58M | 184K | 261K | 166K |
| Minority Interest | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Alector, Inc. (ALEC) cash flow — operating, investing & free cash flow history
| Line item | Dec'17 | Dec'18 | Dec'19 | Dec'20 | Dec'21 | Dec'22 | Dec'23 | Dec'24 | Dec'25 |
|---|---|---|---|---|---|---|---|---|---|
| Cash from Operations | -17.77M | 127.46M | -99.31M | -166.73M | 298.55M | -20.33M | -184.16M | -229.91M | -184.03M |
| Operating CF Margin % | -475.8% | 460.54% | -468.01% | -790.28% | 144.17% | -15.21% | -189.74% | -228.63% | -874.46% |
| Operating CF Growth % | -36.77% | 817.26% | -177.91% | -67.9% | 279.06% | -106.81% | -805.91% | -24.84% | 19.95% |
| Net Income | -32.48M | -52.25M | -105.39M | -190.23M | -36.33M | -133.31M | -130.39M | -119.05M | -142.93M |
| Depreciation & Amortization | 680K | 1.02M | 5.57M | 7.26M | 8.31M | 8.47M | 8.85M | 8.84M | -861K |
| Stock-Based Compensation | 5.35M | 6.92M | 16.28M | 30.52M | 40.78M | 46.15M | 42.8M | 39.46M | 26.66M |
| Deferred Taxes | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Non-Cash Items | 6.78M | -2.59M | -3.5M | 929K | 2.1M | -1.16M | -15.27M | -12.17M | -66.9M |
| Working Capital Changes | 8.68M | 174.36M | -12.27M | -15.22M | 283.68M | 59.53M | -90.15M | -146.99M | 0 |
| Change in Receivables | -20K | 238K | 0 | 0 | -7.39M | 4.8M | 2.59M | 0 | 0 |
| Change in Inventory | 6.58M | 2.45M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | -41K | -809K | 152K | 2.41M | 1.92M | -572K | -377K | -1.44M | -524K |
| Cash from Investing | -801K | -224.12M | -48.87M | -105.05M | -49.66M | -159.01M | 101.92M | 107.13M | 196.6M |
| Capital Expenditures | -801K | -1.88M | -15.27M | -5.03M | -3.25M | -4.12M | -2.38M | -1.25M | -41K |
| CapEx % of Revenue | 21.45% | 6.81% | 71.94% | 23.85% | 1.57% | 3.08% | 2.45% | 1.25% | 0.19% |
| Acquisitions | 0 | 0 | 0 | 100.02M | 0 | 0 | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - |
| Other Investing | 0 | -222.24M | 0 | -100.02M | 0 | 0 | 0 | 0 | 0 |
| Cash from Financing | -15K | 131.15M | 172.35M | 232.11M | 30.3M | 4.51M | 2.55M | 81.54M | 20.21M |
| Debt Issued (Net) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.39M | 0 |
| Equity Issued (Net) | 0 | 0 | 1000K | 1000K | 0 | 1000K | 1000K | 1000K | 0 |
| Dividends Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Share Repurchases | -15K | -1.9M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Financing | -15K | 131.15M | 0 | 7.51M | 30.3M | 0 | 0 | 1.04M | 20.21M |
| Net Change in Cash | -18.59M▲ 0% | 34.49M▲ 285.6% | 24.17M▼ 29.9% | -39.67M▼ 264.1% | 279.18M▲ 803.7% | -174.83M▼ 162.6% | -79.69M▲ 54.4% | -41.23M▲ 48.3% | 32.78M▲ 179.5% |
| Free Cash Flow | -18.57M▲ 0% | 125.58M▲ 776.2% | -114.57M▼ 191.2% | -171.77M▼ 49.9% | 295.3M▲ 271.9% | -24.45M▼ 108.3% | -186.54M▼ 663.1% | -231.16M▼ 23.9% | -184.07M▲ 20.4% |
| FCF Margin % | -497.24% | 453.73% | -539.95% | -814.13% | 142.6% | -18.3% | -192.19% | -229.88% | -874.66% |
| FCF Growth % | -21.84% | 776.18% | -191.24% | -49.92% | 271.92% | -108.28% | -663.08% | -23.92% | 20.37% |
| FCF per Share | -0.36 | 1.84 | -1.86 | -2.21 | 3.67 | -0.30 | -2.23 | -2.39 | -1.79 |
| FCF Conversion (FCF/Net Income) | 0.55x | -2.44x | 0.94x | 0.88x | -8.22x | 0.15x | 1.41x | 1.93x | 1.29x |
| Interest Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Alector, Inc. (ALEC) financial ratios — P/E, ROE, debt and 30+ core market and balance-sheet ratios
| Metric | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|
| Return on Equity (ROE) | - | - | - | -216.52% | -82.3% | -12.79% | -51.75% | -74.81% | -91.24% | -181.56% |
| Return on Invested Capital (ROIC) | - | - | - | - | -69.38% | -19.46% | -168.61% | -112.7% | -92.62% | -170.34% |
| Gross Margin | -3187.02% | -700.83% | -163.87% | -373.76% | -643.53% | 8.54% | 100% | 90.88% | 100% | - |
| Net Margin | -3632.21% | -869.61% | -188.78% | -496.65% | -901.64% | -17.54% | -99.77% | -134.34% | -118.39% | -679.16% |
| Debt / Equity | - | - | - | 0.25x | 0.19x | 0.16x | 0.20x | 0.29x | 0.34x | 1.18x |
| FCF Conversion | 0.86x | 0.55x | -2.44x | 0.94x | 0.88x | -8.22x | 0.15x | 1.41x | 1.93x | 1.29x |
| Revenue Growth | - | 797.84% | 641.02% | -23.33% | -0.57% | 881.54% | -35.48% | -27.36% | 3.6% | -79.07% |
Alector, Inc. (ALEC) SEC filings — annual & quarterly reports (10-K, 10-Q)
Feb 25, 2026·SEC
Dec 12, 2025·SEC
Nov 6, 2025·SEC
Alector, Inc. (ALEC) stock FAQ — growth, dividends, profitability & financials explained
Alector, Inc. (ALEC) reported $21.0M in revenue for fiscal year 2025. This represents a 4959% increase from $0.4M in 2016.
Alector, Inc. (ALEC) saw revenue decline by 79.1% over the past year.
Alector, Inc. (ALEC) reported a net loss of $142.9M for fiscal year 2025.
Alector, Inc. (ALEC) has a return on equity (ROE) of -181.6%. Negative ROE indicates the company is unprofitable.
Alector, Inc. (ALEC) had negative free cash flow of $184.1M in fiscal year 2025, likely due to heavy capital investments.
Alector, Inc. (ALEC) financial analysis — history, returns, DCA and operating performance tools
Historical returns with dividends reinvested
Dollar cost averaging vs lump sum
Yield, growth, payout safety & DRIP
EPS trends, net income & profitability
Long-term charts & historical price data
Sales growth patterns & revenue breakdown
30 years of market, efficiency and balance-sheet ratios
DCF intrinsic value, peer multiples & estimates