Alector ALEC SEC Filings

NASDAQ ALEC
$2.63 +0.10 (+3.95%)
At close: Nov 11, 2026 · 4:00 PM EST
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
110-QQuarterly & Annual Report0001193125-26-449871Nov 5, 2026 4:15 PM
28-KCurrent Report0001193125-26-449813Nov 5, 2026 4:10 PM
3SCHEDULE 13GBeneficial Ownership Report0001346824-26-000247Oct 26, 2026 8:18 PM
4SCHEDULE 13GBeneficial Ownership Report0001172661-26-004680Oct 23, 2026 8:01 PM
5424B5Prospectus0001193125-26-424215Oct 16, 2026 12:51 AM
68-KCurrent Report0001193125-26-424204Oct 16, 2026 12:47 AM
7FWPOthers0001193125-26-423393Oct 16, 2026 3:40 PM
84Insider Transaction0001193125-26-422869Oct 15, 2026 12:05 AM
94Insider Transaction0001193125-26-422867Oct 15, 2026 12:05 AM
104Insider Transaction0001193125-26-422868Oct 15, 2026 12:05 AM
118-KCurrent Report0001193125-26-421080Oct 14, 2026 5:00 PM
128-KCurrent Report0001193125-26-413090Oct 5, 2026 3:00 PM
13SCHEDULE 13GBeneficial Ownership Report0000921895-26-002587Sep 18, 2026 8:57 PM
144Insider Transaction0001193125-26-383858Sep 4, 2026 9:45 PM
154Insider Transaction0001193125-26-383856Sep 4, 2026 9:45 PM
164Insider Transaction0001193125-26-383857Sep 4, 2026 9:45 PM
17144Insider Transaction0001950047-26-009118Sep 4, 2026 8:05 PM
18144Insider Transaction0001950047-26-009039Sep 2, 2026 9:09 PM
19144Insider Transaction0001193125-26-379020Sep 1, 2026 12:00 AM
20144Insider Transaction0001193125-26-379023Sep 1, 2026 12:00 AM
21144Insider Transaction0001193125-26-379022Sep 1, 2026 12:00 AM
224Insider Transaction0001193125-26-361376Aug 21, 2026 10:00 PM
2310-QQuarterly & Annual Report0001193125-26-338052Aug 6, 2026 8:15 PM
248-KCurrent Report0001193125-26-338008Aug 6, 2026 8:10 PM
254Insider Transaction0001193125-26-299678Jul 9, 2026 8:05 PM
268-KCurrent Report0001193125-26-298526Jul 8, 2026 8:05 PM
274Insider Transaction0001193125-26-274134Jun 17, 2026 8:05 PM
284Insider Transaction0001193125-26-274128Jun 17, 2026 8:05 PM
294Insider Transaction0001193125-26-274131Jun 17, 2026 8:05 PM
308-KCurrent Report0001193125-26-274130Jun 17, 2026 8:05 PM
314Insider Transaction0001193125-26-274132Jun 17, 2026 8:05 PM
324Insider Transaction0001193125-26-274124Jun 17, 2026 8:05 PM
334Insider Transaction0001193125-26-274123Jun 17, 2026 8:05 PM
344Insider Transaction0001193125-26-274120Jun 17, 2026 8:05 PM
354Insider Transaction0001193125-26-255990Jun 3, 2026 11:08 PM
364Insider Transaction0001193125-26-255816Jun 3, 2026 9:30 PM
374Insider Transaction0001193125-26-255814Jun 3, 2026 9:30 PM
384Insider Transaction0001193125-26-255811Jun 3, 2026 9:30 PM
39144Insider Transaction0001950047-26-005561Jun 3, 2026 8:23 PM
40144Insider Transaction0001193125-26-251980Jun 1, 2026 11:00 PM
41144Insider Transaction0001193125-26-251981Jun 1, 2026 11:00 PM
42144Insider Transaction0001193125-26-251979Jun 1, 2026 11:00 PM
43SCHEDULE 13GBeneficial Ownership Report0001193125-26-224270May 14, 2026 8:57 PM
448-KCurrent Report0001193125-26-212426May 7, 2026 9:15 PM
45424B5Prospectus0001193125-26-212417May 7, 2026 9:13 PM
4610-QQuarterly & Annual Report0001193125-26-211981May 7, 2026 8:17 PM
478-KCurrent Report0001193125-26-211918May 7, 2026 8:12 PM
48EFFECTOthers9999999995-26-001406Apr 30, 2026 4:15 AM
49CORRESPOthers0001193125-26-188158Apr 28, 2026 11:12 PM
50ARSOthers0001193125-26-186942Apr 28, 2026 8:06 PM
...

Alector, Inc. SEC Filings API

Pull Alector, Inc.'s SEC filing index, with links to every filing and exhibit, into your own tools with the Business Quant SEC Filings API. Swap YOUR_API_KEY for your own key.

https://data.businessquant.com/secfilings?ticker=ALEC&formtype=10-K,10-Q&api_key=YOUR_API_KEY