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, Q3 2025
Institutional positions in Allegro Microsystems, Inc. as of Sep 30, 2025. 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
- 296
- +25 vs. Q2 2025
- Shares held
- 135.9M
- −8.71M (−6.0%) vs. Q2 2025
- Total value
- $3.97B
- −$974.6M (−19.7%) vs. Q2 2025
- New holders
- 66
- 79 more added
- Sold out
- 41
- 108 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Lightrock Netherlands B.V. | 0 | $0 | 0.00% | −137,752−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −77,321−100.0% | Sold out |
| Itau Unibanco Holding S.A. | 0 | $0 | 0.00% | −70,000−100.0% | Sold out |
| Polymer Capital Management (US) LLC | 0 | $0 | 0.00% | −50,300−100.0% | Sold out |
| Robeco Schweiz AG | 0 | $0 | 0.00% | −45,000−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −42,126−100.0% | Sold out |
| Nkcfo LLC | 0 | $0 | 0.00% | −28,000−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −26,794−100.0% | Sold out |
| Sora Investors LLC | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −23,992−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −22,310−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −20,860−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −18,838−100.0% | Sold out |
| Lecap Asset Management Ltd | 0 | $0 | 0.00% | −18,423−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −17,410−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −16,921−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −11,087−100.0% | Sold out |
| RSM US Wealth Management LLC | 0 | $0 | 0.00% | −11,019−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −9,486−100.0% | Sold out |
| Claret Asset Management Corp | 0 | $0 | 0.00% | −6,805−100.0% | Sold out |
| Maryland State Retirement & Pension System | 0 | $0 | 0.00% | −6,797−100.0% | Sold out |
| Everence Capital Management Inc | 0 | $0 | 0.00% | −6,590−100.0% | Sold out |
| Utah Retirement Systems | 0 | $0 | 0.00% | −6,505−100.0% | Sold out |
| CIBC Asset Management Inc | 0 | $0 | 0.00% | −6,132−100.0% | Sold out |
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −5,945−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Newbridge Financial Services Group, Inc. | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Wexford Capital LP | 0 | $0 | 0.00% | −4,070−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −1,740−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −167−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −148−100.0% | Sold out |
| GeoWealth Management, LLC | 0 | $0 | 0.00% | −108−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −70−100.0% | Sold out |
| Robbins Farley LLC | 0 | $0 | 0.00% | −44−100.0% | Sold out |
| Cullen/Frost Bankers, Inc. | 0 | $0 | 0.00% | −37−100.0% | Sold out |
| WealthTrak Capital Management LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −31−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| Avantax Advisory Services, Inc. | – | – | – | – | Not filed |
| First Horizon Advisors, Inc. | – | – | – | – | Not filed |