Allegro Microsystems Inc

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Allegro Microsystems Inc
TickerALGM
CIK #0000866291
CUSIP01749D105
SectorManufacturing - Semiconductors & Related Devices
Address955 Perimeter Road, Manchester, NH 03103
Source [EDGAR]
CIK Filing 2011 - 2025
[0000866291] 10-K
[0000866291] 10-Q
[0000866291] 3
[0000866291] 4
[0000866291] 5
[0000866291] 8-K
[0000866291] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Capital Research Global Investors Allegro Microsystems Inc [2025-05-13] 0.0
BlackRock Inc Allegro Microsystems Inc [2024-11-08] 5.8
Vanguard Group Inc Allegro Microsystems Inc [2024-11-04] 7.59
BlackRock Inc Allegro Microsystems Inc [2024-10-24] 5.8
JPMorgan Chase & Co Allegro Microsystems Inc [2024-10-09] 5.6
FMR LLC Allegro Microsystems Inc [2024-02-09] 0.0
OEP SKNA LP Allegro Microsystems Inc [2021-02-08] 23.5
Sanken Electric Co Ltd Allegro Microsystems Inc [2021-02-08] 54.7
Form 3/4/5 Filer 2011 - 2025
Lury Richard R.
Allegro Microsystems Inc
PUMA Mary G
Raubacher Jennie
Suzuki Yoshihiro
Martin Joseph R
Lynch Susan D
Palepu Krishna G.
Hagen Erin
Doogue Michael
Briansky Sharon
Webster Roald Graham
D'Antilio Derek
Madormo Richard
Glover Max R.
Nargolwala Vineet A
Narayan Suman
Schorr Paul IV
Aldrich David J
Sanken Electric Co., Ltd.
Valente Joanne
Kazerounian Reza
OEP VI General Partner, L.P.
OEP SKNA LP
OEP VI GP, Ltd.
OEP SKNA GP LLC
Teebagy Thomas C. Jr.
Hatano Kojiro
Kawashima Katsumi
Vig Ravi
Walsh Paul V Jr
Brown Christopher
Fujita Noriharu
King Christine
Takani Hideo
Dunn Andrew Glover
Form 13F Holdings
Firm Period DFND Voting Shares
FMR LLC [2025-06-30] DFND 27,206,507 27,247,473
Capital Research Global Investors [2025-06-30] DFND 15,904,357 15,904,357
Vanguard Group Inc [2025-06-30] SOLE 0 13,999,221
BlackRock, Inc. [2025-06-30] SOLE 11,366,791 11,789,868
JPMorgan Chase & Co [2025-06-30] DFND 5,389,858 8,012,702
Invesco Ltd. [2025-06-30] DFND 0 6,254,575
State Street Corp [2025-06-30] DFND 4,889,041 5,193,001
Bank of America Corp /DE/ [2025-06-30] DFND 15,582 3,521,269
Clearbridge Investments LLC [2025-06-30] SOLE 3,163,470 3,163,764
AllianceBernstein LP [2025-06-30] DFND 2,678,679 2,759,872
Wellington Management Group LLP [2025-06-30] DFND 0 2,636,839
Macquarie Group Ltd [2025-06-30] SOLE 2,566,864 2,579,328
Geode Capital Management LLC [2025-06-30] DFND 2,382,297 2,405,986
Frontier Capital Management Co LLC [2025-06-30] SOLE 2,102,984 2,365,957
Adage Capital Partners GP LLC [2025-06-30] SOLE 2,177,560 2,177,560
Principal Financial Group Inc [2025-06-30] DFND 2,157,337 2,157,337
Morgan Stanley [2025-06-30] DFND 1,977,383 2,076,352
Dimensional Fund Advisors LP [2025-06-30] SOLE 1,807,433 1,957,765
Citadel Advisors LLC [2025-06-30] DFND 1,803,108 1,803,108
Balyasny Asset Management LP [2025-06-30] SOLE 1,472,089 1,472,089
Norges Bank [2025-06-30] SOLE 1,407,943 1,407,943
Analog Century Management LP [2025-06-30] SOLE 1,371,590 1,371,590
Segall Bryant & Hamill LLC [2025-06-30] SOLE 887,369 1,328,254
Raymond James Financial Inc [2025-06-30] DFND 1,254,343 1,255,182
Neuberger Berman Group LLC [2025-06-30] DFND 787,969 1,244,415
Charles Schwab Investment Management Inc [2025-06-30] SOLE 1,239,325 1,239,325
Summit Partners Public Asset Management LLC [2025-06-30] SOLE 1,154,000 1,154,000
Bank of New York Mellon Corp [2025-06-30] DFND 968,702 1,041,391
Susquehanna International Group LLP [2025-06-30] OTR 154,114 1,009,114
Northern Trust Corp [2025-06-30] DFND 989,246 995,933
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