Allegro Microsystems, Inc.
ALGM- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0000866291
In the last 90 days, Allegro Microsystems, Inc. insiders filed 0 open-market purchases and 2 sales; 375 institutions reported holding it in 13F filings for Q2 2026, worth $10.2B in total; Maverick Capital is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Allegro Microsystems, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 322
- +33 vs. Q4 2025
- Shares held
- 138.3M
- +17.5M (+14.5%) vs. Q4 2025
- Total value
- $4.32B
- +$1.13B (+35.5%) vs. Q4 2025
- New holders
- 69
- 126 more added
- Sold out
- 36
- 86 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALGM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 375 | $10.2B |
| Q1 2026 | 322 | $4.32B |
| Q4 2025 | 294 | $3.60B |
| Q3 2025 | 296 | $3.97B |
| Q2 2025 | 274 | $4.99B |
| Q1 2025 | 292 | $3.96B |
| Q4 2024 | 256 | $3.11B |
| Q3 2024 | 248 | $3.32B |
| Q2 2024 | 268 | $3.03B |
| Q1 2024 | 277 | $2.80B |
| Q4 2023 | 288 | $2.91B |
| Q3 2023 | 312 | $2.99B |
| Q2 2023 | 353 | $4.41B |
| Q1 2023 | 314 | $4.67B |
| Q4 2022 | 219 | $2.89B |
| Q3 2022 | 170 | $1.97B |
| Q2 2022 | 172 | $1.83B |
| Q1 2022 | 173 | $2.54B |
| Q4 2021 | 165 | $3.18B |
| Q3 2021 | 153 | $2.71B |
| Q2 2021 | 129 | $2.22B |
| Q1 2021 | 123 | $1.98B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Clearstead Advisors, LLC | 33 | $1.04K | 0.00% | −355−91.5% | Reduced |
| North Star Investment Management Corp. | 33 | $1.04K | 0.00% | +33 | New |
| Copia Wealth Management | 27 | $851 | 0.00% | 00.0% | Unchanged |
| Transamerica Financial Advisors, Inc. | 26 | $819 | 0.00% | +20+333.3% | Added |
| Cornerstone Planning Group LLC | 15 | $746 | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 23 | $725 | 0.00% | 00.0% | Unchanged |
| Cromwell Holdings LLC | 19 | $599 | 0.00% | 00.0% | Unchanged |
| Principia Wealth Advisory, LLC | 17 | $536 | 0.00% | +8+88.9% | Added |
| Atwood & Palmer Inc | 15 | $473 | 0.00% | +15 | New |
| MV Capital Management, Inc. | 14 | $442 | 0.00% | 00.0% | Unchanged |
| Basecamp Wealth Advisors LLC | 14 | $441 | 0.00% | +14 | New |
| Kayne Anderson Rudnick Investment Management LLC | 9 | $284 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 8 | $252 | 0.00% | −46−85.2% | Reduced |
| IMA Wealth, Inc. | 8 | $252 | 0.00% | 00.0% | Unchanged |
| Rachor Investment Advisory Services, LLC | 7 | $221 | 0.00% | +7 | New |
| Creative Financial Designs Inc | 5 | $158 | 0.00% | 00.0% | Unchanged |
| Atlantic Union Bankshares Corp | 5 | $158 | 0.00% | 00.0% | Unchanged |
| Dunhill Financial, LLC | 2 | $85 | 0.00% | −1−33.3% | Reduced |
| Quaker Wealth Management, LLC | 2 | $64 | 0.00% | +2 | New |
| Wealth Enhancement Trust Services, Inc. | 2 | $63 | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 1 | $32 | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 17 | $0 | 0.00% | 00.0% | Unchanged |
| Analog Century Management LP | 0 | $0 | 0.00% | −1,890,072−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −1,119,265−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −400,000−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −353,991−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −70,900−100.0% | Sold out |
| Hel Ved Capital Management Ltd | 0 | $0 | 0.00% | −62,850−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −55,304−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −48,097−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −36,173−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −28,801−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −23,256−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −18,255−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −17,291−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −12,962−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −12,939−100.0% | Sold out |
| Mitsubishi UFJ Trust & Banking Corp | 0 | $0 | 0.00% | −12,752−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −12,705−100.0% | Sold out |
| Pinpoint Asset Management (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −12,050−100.0% | Sold out |
| Banque Pictet & Cie SA | 0 | $0 | 0.00% | −10,770−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −10,618−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −10,050−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −8,809−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −7,994−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −7,931−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −7,798−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −1,776−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −1,281−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −1,009−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −178−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −135−100.0% | Sold out |
| Concord Wealth Partners | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| South State Corp. | 0 | $0 | 0.00% | −81−100.0% | Sold out |
| Fortitude Family Office, LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| Optima Capital LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Eastern Bank | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Norges Bank | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |