ALLEGRO MICROSYSTEMS, INC. - Common Stock (ALGM)

CUSIP: 01749D105

Q2 2025 13F Holders as of 30 Jun 2025

Type / Class
Equity / Common Stock
Shares outstanding
184,666,085
Total 13F shares
146,056,579
Share change
-8,405,312
Total reported value
$4,992,929,892
Put/Call ratio
802%
Price per share
$34.19
Number of holders
270
Value change
-$219,199,122
Number of buys
148
Number of sells
168

Quarterly Holders Quick Answers

What is CUSIP 01749D105?
CUSIP 01749D105 identifies ALGM - ALLEGRO MICROSYSTEMS, INC. - Common Stock in SEC institutional holdings data.

Need full ownership history?
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Top shareholders of ALGM - ALLEGRO MICROSYSTEMS, INC. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Holder Source Role / Reporting Ownership % Shares Holdings Value 12M Net Δ As of Details
Sanken Electric Co., Ltd.
3/4/5
10%+ Owner
class O/S missing
59,732,782
$1,383,411,231 07 Aug 2024
FMR LLC
13F
Company
15%
26,921,116
$676,527,652 31 Mar 2025
13F
OEP SKNA, L.P.
3/4/5
10%+ Owner
class O/S missing
17,649,247
$494,884,886 02 Feb 2023
VANGUARD GROUP INC
13F
Company
7.6%
14,100,017
$354,333,426 31 Mar 2025
13F
BlackRock, Inc.
13F
Company
6.3%
11,671,558
$293,306,244 31 Mar 2025
13F
Capital Research Global Investors
13F
Company
6%
11,062,801
$278,008,189 31 Mar 2025
13F
JPMORGAN CHASE & CO
13F 13D/G
Company
4.8%
from 13D/G
8,995,806
$226,064,628 31 Mar 2025
STATE STREET CORP
13F
Company
2.8%
5,084,599
$127,775,973 31 Mar 2025
13F
Invesco Ltd.
13F
Company
2.6%
4,835,641
$121,519,657 31 Mar 2025
13F
CITADEL ADVISORS LLC
13F
Company
2.3%
4,333,613
$108,903,695 31 Mar 2025
13F
Ravi Vig
3/4/5
President and CEO, Director
class O/S missing
3,271,883
$91,743,601 13 Jun 2022
WELLINGTON MANAGEMENT GROUP LLP
13F
Company
1.8%
3,248,890
$81,644,606 31 Mar 2025
13F
Clearbridge Investments, LLC
13F
Company
1.7%
3,161,587
$79,450,682 31 Mar 2025
13F
FRONTIER CAPITAL MANAGEMENT CO LLC
13F
Company
1.6%
2,909,737
$73,121,691 31 Mar 2025
13F
MORGAN STANLEY
13F
Company
1.4%
2,648,371
$66,553,610 31 Mar 2025
13F
MACQUARIE GROUP LTD
13F
Company
1.4%
2,636,014
$66,243,000 31 Mar 2025
13F
PRINCIPAL FINANCIAL GROUP INC
13F
Company
1.3%
2,416,102
$60,716,643 31 Mar 2025
13F
MILLENNIUM MANAGEMENT LLC
13F
Company
1.3%
2,402,978
$60,386,837 31 Mar 2025
13F
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
1.3%
2,388,084
$60,030,418 31 Mar 2025
13F
BALYASNY ASSET MANAGEMENT L.P.
13F
Company
1.3%
2,326,464
$58,464,040 31 Mar 2025
13F
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
13F
Company
1.2%
2,271,600
$57,085,308 31 Mar 2025
13F
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
Company
1.1%
2,108,423
$52,984,670 31 Mar 2025
13F
DIMENSIONAL FUND ADVISORS LP
13F
Company
1.1%
1,968,079
$49,455,457 31 Mar 2025
13F
Analog Century Management LP
13F
Company
1%
1,932,170
$48,555,432 31 Mar 2025
13F
Kodai Capital Management LP
13F
Company
0.9%
1,655,806
$41,610,405 31 Mar 2025
13F
Freestone Grove Partners LP
13F
Company
0.87%
1,603,200
$40,288,416 31 Mar 2025
13F
UBS Group AG
13F
Company
0.79%
1,460,418
$36,700,305 31 Mar 2025
13F
SEGALL BRYANT & HAMILL, LLC
13F
Company
0.71%
1,311,526
$32,958,648 31 Mar 2025
13F
BANK OF AMERICA CORP /DE/
13F
Company
0.7%
1,293,235
$32,498,996 31 Mar 2025
13F
T. Rowe Price Investment Management, Inc.
13F
Company
0.69%
1,280,246
$32,173,000 31 Mar 2025
13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
Company
0.63%
1,166,915
$29,324,574 31 Mar 2025
13F
NORTHERN TRUST CORP
13F
Company
0.59%
1,089,779
$27,386,146 31 Mar 2025
13F
GW&K Investment Management, LLC
13F
Company
0.57%
1,054,756
$26,506,000 31 Mar 2025
13F
LOOMIS SAYLES & CO L P
13F
Company
0.56%
1,040,582
$26,150,000 31 Mar 2025
13F
Schonfeld Strategic Advisors LLC
13F
Company
0.56%
1,036,364
$26,043,826 31 Mar 2025
13F
Bank of New York Mellon Corp
13F
Company
0.54%
996,573
$25,043,866 31 Mar 2025
13F
RAYMOND JAMES FINANCIAL INC
13F
Company
0.54%
993,340
$24,962,633 31 Mar 2025
13F
ALLIANCEBERNSTEIN L.P.
13F
Company
0.52%
953,689
$23,966,205 31 Mar 2025
13F
Cinctive Capital Management LP
13F
Company
0.51%
942,702
$23,690,101 31 Mar 2025
13F
Paul V Walsh Jr.
3/4/5
SVP, CFO & Treasurer
class O/S missing
779,994
$21,871,032 21 Dec 2021
Paloma Partners Management Co
13F
Company
0.38%
708,968
$17,816,366 31 Mar 2025
13F
VOYA INVESTMENT MANAGEMENT LLC
13F
Company
0.36%
669,012
$16,812,272 31 Mar 2025
13F
SILVERCREST ASSET MANAGEMENT GROUP LLC
13F
Company
0.36%
659,361
$16,569,745 31 Mar 2025
13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
13F
Company
0.33%
610,167
$15,333,497 31 Mar 2025
13F
FIRST TRUST ADVISORS LP
13F
Company
0.3%
546,947
$13,744,778 31 Mar 2025
13F
Oasis Management Co Ltd.
13F
Company
0.29%
530,210
$13,324,177 31 Mar 2025
13F
FIFTHDELTA Ltd
13F
Company
0.27%
505,600
$12,705,728 31 Mar 2025
13F
AMERIPRISE FINANCIAL INC
13F
Company
0.27%
503,226
$12,646,070 31 Mar 2025
13F
Walleye Capital LLC
13F
Company
0.26%
489,300
$12,296,109 31 Mar 2025
13F
Alyeska Investment Group, L.P.
13F
Company
0.25%
469,589
$11,800,772 31 Mar 2025
13F

Institutional Holders of ALLEGRO MICROSYSTEMS, INC. - Common Stock (ALGM) as of Q2 2025

As of 30 Jun 2025, ALLEGRO MICROSYSTEMS, INC. - Common Stock (ALGM) was held by 270 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 146,056,579 shares. The largest 10 holders included FMR LLC, Capital Research Global Investors, VANGUARD GROUP INC, BlackRock, Inc., JPMORGAN CHASE & CO, Invesco Ltd., STATE STREET CORP, Clearbridge Investments, LLC, ALLIANCEBERNSTEIN L.P., and WELLINGTON MANAGEMENT GROUP LLP. This page lists 270 institutional shareholders reporting positions in this security for the Q2 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q2 2025 vs Q1 2025 Across Filers

Q1 2025 holders
288
Q2 2025 holders
270
Holder diff
-18
Investor Q1 2025 Shares Q2 2025 Shares Share Diff Share Chg % Q1 2025 Value $ Q2 2025 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.