InsiderClue
Stocks · Health care · Biological Products, (No Diagnostic Substances)

Alector, Inc.

ALEC Clue Score15
United States Fiscal year ends December CIK 0001653087
$2.08 +2.97% Close, 9 Oct 2026
Alert on the numbers Alert on insider trades
Price $2.08 −91.25% Close, 9 Oct 2026

Closing prices at the end of each trading day, from 7 Feb 2019. Not a live quote. Adjusted for share splits, so the line has no step at a split; dividends are not added back. P/E and P/FCF are the market value over the last full fiscal year's net income or free cash flow, as public on each day, so they step once a year when the annual report comes out. A hatched band marks a stretch with none: a year of net loss, or of cash burnt.

Revenue and profit

What the business sells, and what is left of it. Point at a year for the detail.
RevenueOperating incomeNet income
Fiscal year 2017Revenue2.9Operating income−32.7Net income−32.5Fiscal year 2018Revenue27.5 +857.8%Operating income−57.3Net income−52.2Fiscal year 2019Revenue21.2 −22.9%Operating income−114.4Net income−105.4Fiscal year 2020Revenue21.1 −0.6%Operating income−195.2Net income−190.2EPS, diluted−2.45Fiscal year 2021Revenue207.1 +881.5%Operating income−37.4Net income−36.3EPS, diluted−0.45Fiscal year 2022Revenue133.6 −35.5%Operating income−137.8Net income−133.3EPS, diluted−1.62Fiscal year 2023Revenue97.1 −27.4%Operating income−151.7Net income−130.4EPS, diluted−1.56Fiscal year 2024Revenue100.6 +3.6%Operating income−145.0Net income−119.0EPS, diluted−1.23Fiscal year 2025Revenue21.0 −79.1%Operating income−156.0Net income−142.9EPS, diluted−1.39
FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Revenue 2.9 27.5 21.2 21.1 207.1 133.6 97.1 100.6 21.0
Growth +857.8% −22.9% −0.6% +881.5% −35.5% −27.4% +3.6% −79.1%
Operating income −32.7 −57.3 −114.4 −195.2 −37.4 −137.8 −151.7 −145.0 −156.0
Net income −32.5 −52.2 −105.4 −190.2 −36.3 −133.3 −130.4 −119.0 −142.9
Growth
EPS, diluted n/a n/a n/a −2.45 −0.45 −1.62 −1.56 −1.23 −1.39
Growth

Margins

How much of each dollar of revenue it keeps. Point at a year for the detail.
Operating marginNet margin
Fiscal year 2017Operating margin−1,137.8%Net margin−1,130.9%Free cash flow margin−646.7%Fiscal year 2018Operating margin−208.3%Net margin−189.9%Free cash flow margin456.5%Fiscal year 2019Operating margin−539.2%Net margin−496.7%Free cash flow margin−540.0%Fiscal year 2020Operating margin−925.1%Net margin−901.6%Free cash flow margin−814.1%Fiscal year 2021Operating margin−18.0%Net margin−17.5%Free cash flow margin142.6%Fiscal year 2022Operating margin−103.2%Net margin−99.8%Free cash flow margin−18.3%Fiscal year 2023Operating margin−156.3%Net margin−134.3%Free cash flow margin−192.2%Fiscal year 2024Operating margin−144.2%Net margin−118.4%Free cash flow margin−229.9%Fiscal year 2025Operating margin−741.3%Net margin−679.2%Free cash flow margin−874.7%
FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Operating margin −1,137.8% −208.3% −539.2% −925.1% −18.0% −103.2% −156.3% −144.2% −741.3%
Net margin −1,130.9% −189.9% −496.7% −901.6% −17.5% −99.8% −134.3% −118.4% −679.2%
Free cash flow margin −646.7% 456.5% −540.0% −814.1% 142.6% −18.3% −192.2% −229.9% −874.7%

Cash flow

The cash the business makes, what it reinvests, and what it hands back. Point at a year for the detail.
Operating cash flowCapital expenditureFree cash flow
Fiscal year 2017Operating cash flow−17.8Capital expenditure−0.8Free cash flow−18.6Fiscal year 2018Operating cash flow127.5Capital expenditure−1.9Free cash flow125.6Fiscal year 2019Operating cash flow−99.3Capital expenditure−15.3Free cash flow−114.6 −191.2%Fiscal year 2020Operating cash flow−166.7Capital expenditure−5.0Free cash flow−171.8Fiscal year 2021Operating cash flow298.6Capital expenditure−3.2Free cash flow295.3Fiscal year 2022Operating cash flow−20.3Capital expenditure−4.1Free cash flow−24.4 −108.3%Fiscal year 2023Operating cash flow−184.2Capital expenditure−2.4Free cash flow−186.5Fiscal year 2024Operating cash flow−229.9Capital expenditure−1.3Free cash flow−231.2Fiscal year 2025Operating cash flow−184.0Capital expenditure−0.0Free cash flow−184.1
FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Operating cash flow −17.8 127.5 −99.3 −166.7 298.6 −20.3 −184.2 −229.9 −184.0
Capital expenditure −0.8 −1.9 −15.3 −5.0 −3.2 −4.1 −2.4 −1.3 −0.0
Free cash flow −18.6 125.6 −114.6 −171.8 295.3 −24.4 −186.5 −231.2 −184.1
Growth −191.2% −108.3%

Balance sheet

What it holds against what it owes, at each year end. Point at a year for the detail.
CashTotal debt
Fiscal year 2017Cash32.5Shareholders’ equity−52.0Fiscal year 2018Cash65.5Shareholders’ equity−97.4Fiscal year 2019Cash89.6Shareholders’ equity194.7Fiscal year 2020Cash50.0Shareholders’ equity267.5Fiscal year 2021Cash329.2Shareholders’ equity300.7Fiscal year 2022Cash154.3Shareholders’ equity214.4Fiscal year 2023Cash74.6Total debt0.0Net cash (debt)74.6Shareholders’ equity134.2Debt to equity0.00Fiscal year 2024Cash33.0Total debt9.4Net cash (debt)23.6Shareholders’ equity126.8Debt to equity0.07Fiscal year 2025Cash65.8Total debt9.7Net cash (debt)56.1Shareholders’ equity30.6Debt to equity0.32
FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Cash 32.5 65.5 89.6 50.0 329.2 154.3 74.6 33.0 65.8
Total debt n/a n/a n/a n/a n/a n/a 0.0 9.4 9.7
Net cash (debt) n/a n/a n/a n/a n/a n/a 74.6 23.6 56.1
Shareholders’ equity −52.0 −97.4 194.7 267.5 300.7 214.4 134.2 126.8 30.6
Debt to equity n/a n/a n/a n/a n/a n/a 0.00 0.07 0.32

In millions of USD, except per-share figures and ratios. Fiscal years, as last filed with the SEC.

Financial statements FY2025 · 10-K

Ratios

Percentages worked out from the filed figures; debt to equity in times. Fiscal years ending December, each column as last filed with the SEC.
Click a line to chart it
Fiscal year FY2017 31 Dec 2017 FY2018 31 Dec 2018 FY2019 31 Dec 2019 FY2020 31 Dec 2020 FY2021 31 Dec 2021 FY2022 31 Dec 2022 FY2023 31 Dec 2023 FY2024 31 Dec 2024 FY2025 31 Dec 2025
Margins
−1,137.8% −208.3% −539.2% −925.1% −18.0% −103.2% −156.3% −144.2% −741.3%
n/a n/a n/a n/a n/a −97.4% −128.9% −118.3% −678.4%
−1,130.9% −189.9% −496.7% −901.6% −17.5% −99.8% −134.3% −118.4% −679.2%
−646.7% 456.5% −540.0% −814.1% 142.6% −18.3% −192.2% −229.9% −874.7%
Spending
1,041.5% 265.5% 473.8% 743.5% 91.5% 157.5% 197.9% 184.9% 584.8%
226.4% 43.4% 165.4% 281.6% 26.6% 45.7% 58.4% 59.3% 256.5%
27.9% 6.8% 71.9% 23.9% 1.6% 3.1% 2.5% 1.2% 0.2%
Returns
n/a n/a −54.1% −71.1% −12.1% −62.2% −97.2% −93.9% −466.3%
n/a −16.9% −25.0% −39.0% −4.5% −16.9% −21.0% −25.4% −48.7%
Balance and payout
n/a n/a n/a n/a n/a n/a 0.00 0.07 0.32
n/a 63.3% 53.8% 45.2% 63.1% 72.8% 78.4% 72.9% 89.5%