Alector ALEC SEC Filings

NASDAQ ALEC
$1.87 -0.10 (-5.08%)
At close: Oct 21, 2026 · 4:00 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Alector, Inc. (ALEC) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
1424B5Prospectus0001193125-26-424215Oct 16, 2026 12:51 AM
28-KCurrent Report0001193125-26-424204Oct 16, 2026 12:47 AM
3FWPOthers0001193125-26-423393Oct 16, 2026 7:40 AM-
44Insider Transaction0001193125-26-422869Oct 15, 2026 12:05 AM
54Insider Transaction0001193125-26-422867Oct 15, 2026 12:05 AM
64Insider Transaction0001193125-26-422868Oct 15, 2026 12:05 AM
78-KCurrent Report0001193125-26-421080Oct 14, 2026 5:00 PM
88-KCurrent Report0001193125-26-413090Oct 5, 2026 7:00 AM
9SCHEDULE 13GBeneficial Ownership Report0000921895-26-002587Sep 18, 2026 8:57 PM
104Insider Transaction0001193125-26-383858Sep 4, 2026 9:45 PM
114Insider Transaction0001193125-26-383856Sep 4, 2026 9:45 PM
124Insider Transaction0001193125-26-383857Sep 4, 2026 9:45 PM
13144Insider Transaction0001950047-26-009118Sep 4, 2026 8:05 PM
14144Insider Transaction0001950047-26-009039Sep 2, 2026 9:09 PM
15144Insider Transaction0001193125-26-379022Sep 1, 2026 12:00 AM
16144Insider Transaction0001193125-26-379020Sep 1, 2026 12:00 AM
17144Insider Transaction0001193125-26-379023Sep 1, 2026 12:00 AM
184Insider Transaction0001193125-26-361376Aug 21, 2026 10:00 PM
1910-QQuarterly & Annual Report0001193125-26-338052Aug 6, 2026 8:15 PM
208-KCurrent Report0001193125-26-338008Aug 6, 2026 8:10 PM
214Insider Transaction0001193125-26-299678Jul 9, 2026 8:05 PM
228-KCurrent Report0001193125-26-298526Jul 8, 2026 8:05 PM
234Insider Transaction0001193125-26-274134Jun 17, 2026 8:05 PM
244Insider Transaction0001193125-26-274128Jun 17, 2026 8:05 PM
254Insider Transaction0001193125-26-274131Jun 17, 2026 8:05 PM
268-KCurrent Report0001193125-26-274130Jun 17, 2026 8:05 PM
274Insider Transaction0001193125-26-274132Jun 17, 2026 8:05 PM
284Insider Transaction0001193125-26-274124Jun 17, 2026 8:05 PM
294Insider Transaction0001193125-26-274123Jun 17, 2026 8:05 PM
304Insider Transaction0001193125-26-274120Jun 17, 2026 8:05 PM
314Insider Transaction0001193125-26-255990Jun 3, 2026 11:08 PM
324Insider Transaction0001193125-26-255816Jun 3, 2026 9:30 PM
334Insider Transaction0001193125-26-255814Jun 3, 2026 9:30 PM
344Insider Transaction0001193125-26-255811Jun 3, 2026 9:30 PM
35144Insider Transaction0001950047-26-005561Jun 3, 2026 8:23 PM
36144Insider Transaction0001193125-26-251981Jun 1, 2026 11:00 PM
37144Insider Transaction0001193125-26-251980Jun 1, 2026 11:00 PM
38144Insider Transaction0001193125-26-251979Jun 1, 2026 11:00 PM
398-KCurrent Report0001193125-26-212426May 7, 2026 9:15 PM
408-KCurrent Report0001193125-26-212426May 7, 2026 9:15 PM
418-KCurrent Report0001193125-26-212426May 7, 2026 9:15 PM
42424B5Prospectus0001193125-26-212417May 7, 2026 9:13 PM
43424B5Prospectus0001193125-26-212417May 7, 2026 9:13 PM
44424B5Prospectus0001193125-26-212417May 7, 2026 9:13 PM
4510-QQuarterly & Annual Report0001193125-26-211981May 7, 2026 8:17 PM
4610-QQuarterly & Annual Report0001193125-26-211981May 7, 2026 8:17 PM
4710-QQuarterly & Annual Report0001193125-26-211981May 7, 2026 8:17 PM
488-KCurrent Report0001193125-26-211918May 7, 2026 8:12 PM
498-KCurrent Report0001193125-26-211918May 7, 2026 8:12 PM
508-KCurrent Report0001193125-26-211918May 7, 2026 8:12 PM
...

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