Security key
01749D105
ALLEGRO MICROSYSTEMS, INC. - COMMON STOCK (ALGM)
CUSIP: 01749D105
Q4 2025 13F Holders as of 31 Dec 2025
- Type / Class
- Equity / COMMON STOCK
- Shares outstanding
- 185,278,416
- Total 13F shares
- 136,543,901
- Share change
- -1,070,983
- Total reported value
- $3,603,601,123
- Put/Call ratio
- 270%
- Price per share
- $26.38
- Number of holders
- 293
- Value change
- -$37,869,933
- Number of buys
- 126
- Number of sells
- 172
Report period
Q4 2025
Institutions
293
Top holders
10
ALGM full security history
Newer quarter: Q1 2026
Previous quarter: Q3 2025
ALLEGRO MICROSYSTEMS, INC. SEC filings
ALLEGRO MICROSYSTEMS, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 01749D105
Recent filing periods:
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 |
|---|---|---|---|---|---|---|---|---|
| Capital Research Global Investors |
13F
13D/G
|
Company |
7.1%
from 13D/G
|
16,824,722
|
$491,281,882 | — | 30 Sep 2025 | |
| JPMORGAN CHASE & CO |
13F
13D/G
|
Company |
4.8%
from 13D/G
|
7,731,267
|
$225,753,000 | — | 30 Sep 2025 | |
| Yoshihiro Suzuki |
3/4/5
|
Director |
0.12%
|
213,560
|
$7,850,465 | — | 07 Aug 2025 | |
| Joseph R. Martin |
3/4/5
|
Director |
0.02%
|
35,179
|
$1,293,180 | — | 07 Aug 2025 | |
| Richard R. Lury |
3/4/5
|
Director |
0.01%
|
18,857
|
$599,848 | -$506,104 | 12 Aug 2025 | |
| Mary G. Puma |
3/4/5
|
Director |
0.01%
|
17,483
|
$642,675 | — | 07 Aug 2025 | |
| Jennie M. Raubacher |
3/4/5
|
Director |
0.01%
|
14,976
|
$550,517 | — | 07 Aug 2025 | |
| Krishna G. Palepu |
3/4/5
|
Director |
0.01%
|
10,511
|
$386,384 | — | 07 Aug 2025 | |
| FMR LLC |
13F
|
Company |
15%
|
27,467,843
|
$802,060,992 | — | 30 Sep 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
7.7%
|
14,293,465
|
$417,369,179 | — | 30 Sep 2025 | |
| BlackRock, Inc. |
13F
|
Company |
6.1%
|
11,377,418
|
$332,220,613 | — | 30 Sep 2025 | |
| Invesco Ltd. |
13F
|
Company |
2.9%
|
5,312,427
|
$155,122,868 | — | 30 Sep 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.9%
|
5,281,285
|
$154,213,522 | — | 30 Sep 2025 | |
| Clearbridge Investments, LLC |
13F
|
Company |
1.6%
|
2,932,806
|
$85,637,927 | — | 30 Sep 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
1.5%
|
2,690,496
|
$78,562,483 | — | 30 Sep 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.3%
|
2,369,129
|
$69,190,805 | — | 30 Sep 2025 | |
| MACQUARIE GROUP LTD |
13F
|
Company |
1.2%
|
2,197,274
|
$64,160,000 | — | 30 Sep 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.1%
|
1,970,550
|
$57,539,641 | — | 30 Sep 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1%
|
1,939,029
|
$56,619,686 | — | 30 Sep 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
1%
|
1,914,074
|
$55,890,961 | — | 30 Sep 2025 | |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
|
Company |
0.85%
|
1,576,627
|
$46,037,508 | — | 30 Sep 2025 | |
| SEGALL BRYANT & HAMILL, LLC |
13F
|
Company |
0.71%
|
1,323,726
|
$38,652,799 | — | 30 Sep 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.7%
|
1,294,993
|
$37,813,796 | — | 30 Sep 2025 | |
| Analog Century Management LP |
13F
|
Company |
0.63%
|
1,174,953
|
$34,308,628 | — | 30 Sep 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.63%
|
1,160,917
|
$33,898,777 | — | 30 Sep 2025 | |
| T. Rowe Price Investment Management, Inc. |
13F
|
Company |
0.59%
|
1,085,198
|
$31,688,000 | — | 30 Sep 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.55%
|
1,010,857
|
$29,517,024 | — | 30 Sep 2025 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.53%
|
986,800
|
$28,814,560 | — | 30 Sep 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.51%
|
952,679
|
$27,818,225 | — | 30 Sep 2025 | |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.51%
|
942,076
|
$27,508,619 | — | 30 Sep 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.5%
|
926,358
|
$27,049,653 | — | 30 Sep 2025 | |
| FRONTIER CAPITAL MANAGEMENT CO LLC |
13F
|
Company |
0.48%
|
895,797
|
$26,157,272 | — | 30 Sep 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.43%
|
802,626
|
$23,436,679 | — | 30 Sep 2025 | |
| LOOMIS SAYLES & CO L P |
13F
|
Company |
0.43%
|
802,023
|
$23,419,071 | — | 30 Sep 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.43%
|
793,515
|
$23,170,644 | — | 30 Sep 2025 | |
| SILVERCREST ASSET MANAGEMENT GROUP LLC |
13F
|
Company |
0.37%
|
685,061
|
$20,003,818 | — | 30 Sep 2025 | |
| GW&K Investment Management, LLC |
13F
|
Company |
0.37%
|
683,505
|
$19,958,000 | — | 30 Sep 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.35%
|
642,460
|
$18,761,000 | — | 30 Sep 2025 | |
| UBS Group AG |
13F
|
Company |
0.31%
|
579,278
|
$16,914,918 | — | 30 Sep 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
0.3%
|
551,593
|
$16,106,515 | — | 30 Sep 2025 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.27%
|
498,331
|
$14,551,265 | — | 30 Sep 2025 | |
| S Squared Technology, LLC |
13F
|
Company |
0.21%
|
397,451
|
$11,605,569 | — | 30 Sep 2025 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
0.19%
|
360,186
|
$10,236,487 | — | 30 Sep 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.19%
|
345,346
|
$10,084,103 | — | 30 Sep 2025 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.18%
|
339,926
|
$9,925,839 | — | 30 Sep 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.18%
|
337,478
|
$9,854,358 | — | 30 Sep 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.18%
|
331,631
|
$9,683,625 | — | 30 Sep 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.18%
|
326,922
|
$9,546,123 | — | 30 Sep 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.17%
|
312,924
|
$9,137,360 | — | 30 Sep 2025 | |
| PEREGRINE CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.15%
|
274,477
|
$8,014,728 | — | 30 Sep 2025 |
Institutional Holders of ALLEGRO MICROSYSTEMS, INC. - COMMON STOCK (ALGM) as of Q4 2025
As of 31 Dec 2025,
ALLEGRO MICROSYSTEMS, INC. - COMMON STOCK (ALGM) was held by
293 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
136,543,901 shares.
The largest 10 holders included
FMR LLC, VANGUARD GROUP INC, Capital Research Global Investors, BlackRock, Inc., Invesco Ltd., JPMORGAN CHASE & CO, STATE STREET CORP, Clearbridge Investments, LLC, ADAGE CAPITAL PARTNERS GP, L.L.C., and CITADEL ADVISORS LLC.
This page lists
294
institutional shareholders reporting positions in this security
for the Q4 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
292
Q4 2025 holders
293
Holder diff
1
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 Value $ | Q4 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.
An asterisk sign (*) next to the price indicates that the price is likely invalid.