Allegro Microsystems ALGM SEC Filings

NASDAQ ALGM
$30.13 -1.58 (-4.98%)
At close: Nov 13, 2026 · 4:00 PM EST
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Allegro Microsystems, Inc. (ALGM) 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
1SCHEDULE 13G/AOthers0001422848-26-000133Nov 13, 2026 5:08 PM
210-QQuarterly & Annual Report0001193125-26-439990Oct 30, 2026 12:59 PM
38-KCurrent Report0001193125-26-436963Oct 29, 2026 11:09 AM
4SCHEDULE 13GBeneficial Ownership Report0000315066-26-002338Oct 7, 2026 7:47 PM
54Insider Transaction0001193125-26-410685Oct 1, 2026 12:16 AM
64Insider Transaction0001193125-26-355476Aug 18, 2026 8:15 PM
7144Insider Transaction0001959173-26-006071Aug 17, 2026 3:50 PM
8SCHEDULE 13GBeneficial Ownership Report0000914208-26-000267Aug 13, 2026 6:05 PM
94Insider Transaction0001193125-26-346892Aug 12, 2026 8:16 PM
10144Insider Transaction0001959173-26-005842Aug 10, 2026 8:22 PM
118-KCurrent Report0001193125-26-339226Aug 7, 2026 12:02 PM
124Insider Transaction0001193125-26-339123Aug 7, 2026 11:03 AM
134Insider Transaction0001193125-26-339121Aug 7, 2026 11:03 AM
144Insider Transaction0001193125-26-339114Aug 7, 2026 11:02 AM
154Insider Transaction0001193125-26-339105Aug 7, 2026 11:02 AM
164Insider Transaction0001193125-26-339103Aug 7, 2026 11:02 AM
174Insider Transaction0001193125-26-339102Aug 7, 2026 11:02 AM
184Insider Transaction0001193125-26-339100Aug 7, 2026 11:01 AM
19SCHEDULE 13GBeneficial Ownership Report0000315066-26-001941Aug 6, 2026 2:14 PM
2010-QQuarterly & Annual Report0001193125-26-327128Jul 31, 2026 12:57 PM
218-KCurrent Report0001193125-26-324869Jul 30, 2026 11:07 AM
22SCHEDULE 13GBeneficial Ownership Report0002012383-26-002169Jul 27, 2026 8:25 PM
23SCHEDULE 13GBeneficial Ownership Report0000019617-26-000253Jul 16, 2026 6:26 PM
24ARSOthers0001193125-26-280259Jun 24, 2026 11:36 AM
25DEFA14AOthers0001193125-26-280257Jun 24, 2026 11:32 AM
26DEF 14AOthers0001193125-26-280254Jun 24, 2026 11:27 AM
274Insider Transaction0001193125-26-275927Jun 18, 2026 8:25 PM
283Insider Transaction0001193125-26-275886Jun 18, 2026 8:15 PM
298-KCurrent Report0001193125-26-275011Jun 18, 2026 12:09 PM
304Insider Transaction0001193125-26-257433Jun 4, 2026 8:16 PM
31144Insider Transaction0001959173-26-004301Jun 3, 2026 5:54 PM
32SDOthers0001193125-26-246358May 29, 2026 12:03 PM
334Insider Transaction0001193125-26-239343May 26, 2026 8:16 PM
344Insider Transaction0001193125-26-236938May 22, 2026 8:16 PM
35144Insider Transaction0001959173-26-003923May 22, 2026 5:54 PM
3610-KQuarterly & Annual Report0001193125-26-233537May 21, 2026 12:24 PM
374Insider Transaction0001193125-26-231165May 19, 2026 9:30 PM
384Insider Transaction0001193125-26-231167May 19, 2026 9:30 PM
394Insider Transaction0001193125-26-231164May 19, 2026 9:30 PM
404Insider Transaction0001193125-26-231162May 19, 2026 9:30 PM
414Insider Transaction0001193125-26-231157May 19, 2026 9:30 PM
424Insider Transaction0001193125-26-231155May 19, 2026 9:30 PM
434Insider Transaction0001193125-26-231146May 19, 2026 9:28 PM
444Insider Transaction0001193125-26-231142May 19, 2026 9:27 PM
45144Insider Transaction0001959173-26-003698May 18, 2026 3:47 PM
464Insider Transaction0001193125-26-226845May 15, 2026 8:20 PM
474Insider Transaction0001193125-26-226844May 15, 2026 8:20 PM
484Insider Transaction0001193125-26-226842May 15, 2026 8:20 PM
494Insider Transaction0001193125-26-226841May 15, 2026 8:20 PM
504Insider Transaction0001193125-26-226843May 15, 2026 8:20 PM
...

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