Allegro Microsystems Inc (ALGM)
Technology
Semiconductors
41.50 $
+0.1%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Allegro Microsystems Inc (ALGM)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 67.1% of the shares are freely tradable; institutional investors hold 76.2%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
76.2%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
33.0%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
67.1%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
12.8%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
186Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| FMR Inc | 14.72 | 27,421,206 | +16.0 | 03/31/2026 |
| BlackRock Inc | 6.71 | 12,494,868 | +2.4 | 03/31/2026 |
| Capital Research Global Investors | 6.67 | 12,435,558 | -5.2 | 03/31/2026 |
| Amvescap Plc. | 4.70 | 8,751,481 | +14.4 | 03/31/2026 |
| JPMorgan Chase & Co | 4.64 | 8,652,068 | +17.8 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.25 | 7,920,042 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Fidelity Select Semiconductors | 8.98 | 16,739,387 | +0.0 | 06/30/2026 |
| American Funds Cptl Wld Gr&Inc A | 3.18 | 5,926,903 | +0.0 | 06/30/2026 |
| Capital Group World Growth & Inc Cmp | 3.18 | 5,926,903 | +0.0 | 06/30/2026 |
| American Funds SMALLCAP World A | 2.95 | 5,503,804 | -2.6 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.