Allegro Microsystems ALGM SEC Filings

NASDAQ ALGM
$31.48 -0.21 (-0.66%)
At close: Oct 23, 2026 · 4:00 PM EDT
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
14Insider Transaction0001193125-26-410685Oct 1, 2026 12:16 AM
24Insider Transaction0001193125-26-355476Aug 18, 2026 8:15 PM
3144Insider Transaction0001959173-26-006071Aug 17, 2026 3:50 PM
4SCHEDULE 13GBeneficial Ownership0000914208-26-000267Aug 13, 2026 2:05 PM
54Insider Transaction0001193125-26-346892Aug 12, 2026 8:16 PM
6144Insider Transaction0001959173-26-005842Aug 10, 2026 8:22 PM
78-KCurrent Report0001193125-26-339226Aug 7, 2026 12:02 PM
84Insider Transaction0001193125-26-339123Aug 7, 2026 11:03 AM
94Insider Transaction0001193125-26-339121Aug 7, 2026 11:03 AM
104Insider Transaction0001193125-26-339114Aug 7, 2026 11:02 AM
114Insider Transaction0001193125-26-339105Aug 7, 2026 11:02 AM
124Insider Transaction0001193125-26-339103Aug 7, 2026 11:02 AM
134Insider Transaction0001193125-26-339102Aug 7, 2026 11:02 AM
144Insider Transaction0001193125-26-339100Aug 7, 2026 11:01 AM
15SCHEDULE 13GBeneficial Ownership Report0000315066-26-001941Aug 6, 2026 2:14 PM
1610-QQuarterly & Annual Report0001193125-26-327128Jul 31, 2026 12:57 PM
178-KCurrent Report0001193125-26-324869Jul 30, 2026 7:07 AM
18SCHEDULE 13GBeneficial Ownership Report0002012383-26-002169Jul 27, 2026 8:25 PM
19SCHEDULE 13GBeneficial Ownership Report0000019617-26-000253Jul 16, 2026 6:26 PM
20ARSOthers0001193125-26-280259Jun 24, 2026 7:36 AM
21DEFA14AOthers0001193125-26-280257Jun 24, 2026 7:32 AM
22DEF 14AOthers0001193125-26-280254Jun 24, 2026 7:27 AM
234Insider Transaction0001193125-26-275927Jun 18, 2026 8:25 PM
243Insider Transaction0001193125-26-275886Jun 18, 2026 8:15 PM
258-KCurrent Report0001193125-26-275011Jun 18, 2026 12:09 PM
264Insider Transaction0001193125-26-257433Jun 4, 2026 8:16 PM
27144Insider Transaction0001959173-26-004301Jun 3, 2026 5:54 PM
28SDOthers0001193125-26-246358May 29, 2026 8:03 AM
2910-KQuarterly & Annual Report0001193125-26-233537May 21, 2026 12:24 PM
304Insider Transaction0001193125-26-231165May 19, 2026 9:30 PM
314Insider Transaction0001193125-26-231167May 19, 2026 9:30 PM
324Insider Transaction0001193125-26-231164May 19, 2026 9:30 PM
334Insider Transaction0001193125-26-231162May 19, 2026 9:30 PM
344Insider Transaction0001193125-26-231157May 19, 2026 9:30 PM
354Insider Transaction0001193125-26-231155May 19, 2026 9:30 PM
364Insider Transaction0001193125-26-231146May 19, 2026 9:28 PM
374Insider Transaction0001193125-26-231142May 19, 2026 9:27 PM
38144Insider Transaction0001959173-26-003698May 18, 2026 3:47 PM
394Insider Transaction0001193125-26-226845May 15, 2026 8:20 PM
404Insider Transaction0001193125-26-226844May 15, 2026 8:20 PM
414Insider Transaction0001193125-26-226842May 15, 2026 8:20 PM
424Insider Transaction0001193125-26-226841May 15, 2026 8:20 PM
434Insider Transaction0001193125-26-226843May 15, 2026 8:20 PM
444Insider Transaction0001193125-26-226840May 15, 2026 8:20 PM
454Insider Transaction0001193125-26-226839May 15, 2026 8:20 PM
464Insider Transaction0001193125-26-226838May 15, 2026 8:20 PM
474Insider Transaction0001193125-26-226837May 15, 2026 8:20 PM
484Insider Transaction0001193125-26-226836May 15, 2026 8:20 PM
493Insider Transaction0001193125-26-226759May 15, 2026 8:15 PM
50144Insider Transaction0001959173-26-003599May 14, 2026 6:10 PM
...

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