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Alector, Inc. ALEC

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Quarterly (Descending) Quarterly (Ascending) Annual (Descending) Annual (Ascending) TTM (Descending) TTM (Ascending)

Financial statements are limited to most recent four years or quarters for non-powerpack users

Ten years worth of data (where available), most important trends and XLS exports are available for our Powerpack users.

	Jun '26	Mar '26	Dec '25	Sep '25	Jun '25	Mar '25	Dec '24	Sep '24	Jun '24	Mar '24	Dec '23	Sep '23	Jun '23	Mar '23	Dec '22	Sep '22	Jun '22	Mar '22	Dec '21	Sep '21	Jun '21	Mar '21	Dec '20	Sep '20	Jun '20	Mar '20	Dec '19	Sep '19	Jun '19	Mar '19	Dec '18	Sep '18	Jun '18	Mar '18	Dec '17	Dec '16
ROE	(385.11%)	(238.85%)	(181.56%)	(121.98%)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—	‡‡‡	—
ROA	(42.15%)	(38.69%)	(37.54%)	(25.31%)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡
ROIC	0.00%	0.00%	0.00%	0.00%	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡
Cash ROIC	(91.64%)	(76.35%)	(62.10%)	(55.06%)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡
Return on Tangible Assets	(76.15%)	(68.13%)	(68.79%)	(46.21%)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—	‡‡‡	—
Accounts Receivable Turnover	0.00	0.00	0.00	0.00	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	—	—
Accounts Payable Turnover	0.00	0.00	0.00	0.00	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	‡‡‡	—
Inventory Turnover	—	—	—	—	—	—	—	—	—	—	—	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Average Days of Receivables	0.00	0.00	0.00	0.00	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	‡‡‡	—
Average Days of Payables	0.00	0.00	0.00	0.00	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	‡‡‡	—
Days of Inventory on Hand	—	—	—	—	—	—	—	—	—	—	—	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Tax Rate	0.00	0.00	0.00	0.00	‡‡‡	‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	—	—
Research and Development Expense of Revenue	715.07%	582.51%	584.77%	198.50%	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—	—	—
Selling, General and Administrative Expense of Revenue	297.33%	257.19%	256.53%	80.63%	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—	—	—
Share Based Compensation of Revenue	120.92%	115.19%	126.67%	46.38%	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—	—	—
Interest Coverage	0.00	0.00	0.00	0.00	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	—	—
Operating CF/Net income	1.34	1.38	1.29	1.83	‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	—	—	—
Depreciation/Fixed assets	0.57	0.50	0.31	0.14	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	—	‡‡‡	—
Capex/Depreciation	(0.03)	(0.03)	(0.01)	(0.12)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—
Revenue per Share	0.12	0.17	0.20	0.67	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—
Operating CF per Share	(1.42)	(1.56)	(1.79)	(1.92)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	—	—
Capex per Share	0.00	0.00	0.00	0.00	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	—	—
Free Cash Flow per Share	(1.42)	(1.57)	(1.79)	(1.93)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	—	—
Free Cash Flow	(158.39)	(173.20)	(184.07)	(197.58)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—
Capital Expenditures	(0.16)	(0.14)	(0.04)	(0.21)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—
Piotroski F-Score	1.00	1.00	1.00	3.00	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	‡‡‡	—	—	—	—	—
Capex to Sales	0.01	0.01	0.00	0.00	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡	‡‡‡	—	—	—
Net Profit Margin	(850.13%)	(680.83%)	(679.16%)	(156.03%)	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	‡‡‡‡‡	—	—	—	—	—

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