Allegro MicroSystems
Designs magnetic sensors and power ICs for vehicles, automation, and energy-efficient systems.
$35.70
After-hours close−0.04 (−0.11%)
At close$35.74(−4.92%)
Something off on this page? Send us feedback.
Breakdown13F · Form 4
Institutions 85.65%159.57M sharesInsiders 0.76%1.41M sharesOther 13.59%25.33M shares
Shares outstanding 186.31M · Float 124.99M · 67.1% free float
Institutions13F, as of Jun 30, 2026
392 holders · 159.57M shares · 107 new positions · 224 increased · 108 reduced · 45 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 25.58M | 13.73% | −1.84M | Aug 13, 2026 |
| BlackRock, Inc. | 13.89M | 7.45% | +1.39M | Aug 7, 2026 |
| Invesco Ltd. | 13.68M | 7.34% | +4.93M | Aug 14, 2026 |
| JPMorgan Chase & Co | 12.72M | 6.83% | +4.07M | Aug 12, 2026 |
| Capital Research Global Investors | 12.01M | 6.44% | −429.2K | Aug 12, 2026 |
| Vanguard Portfolio Management LLC | 7.67M | 4.12% | −251.6K | Aug 13, 2026 |
| State Street Corp | 5.68M | 3.05% | +448.3K | Aug 7, 2026 |
| Vanguard Capital Management LLC | 5.51M | 2.96% | +44.1K | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| FMR LLC | 14.80% | 27.42M | 13G | May 6, 2026 ↗ |
| Invesco Ltd. | 7.30% | 13.68M | 13G | Aug 13, 2026 ↗ |
| Capital Research Global Investors | 7.10% | 13.11M | 13G | Feb 12, 2026 ↗ |
| JPMorgan Chase & Co | 6.80% | 12.73M | 13G | Jul 16, 2026 ↗ |
| BlackRock, Inc. | 5.80% | 12.84M | Nov 8, 2024 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Michael Doogue | director, officer: President and CEO | 531.9K | 0.29% | May 19, 2026 |
| Derek D'Antilio | officer: EVP, CFO & Treasurer | 238.8K | 0.13% | May 19, 2026 |
| Yoshihiro Suzuki | director | 217.8K | 0.12% | Aug 7, 2026 |
| Sharon Briansky | officer: SVP, GC and Secretary | 79.8K | 0.04% | May 19, 2026 |
| Troy Coleman | officer: SVP, General Manager, Products | 77.5K | 0.04% | May 26, 2026 |
| Richard Madormo | officer: SVP, Worldwide Sales | 69.7K | 0.04% | Jun 4, 2026 |
| Joseph R. Martin | director | 39.4K | 0.02% | Aug 7, 2026 |
| Erin Hagen | officer: SVP, CHRO | 31.1K | 0.02% | Aug 12, 2026 |
| Ian Kent | officer: SVP, Global Operations | 25.4K | 0.01% | May 19, 2026 |
| Mary G. Puma | director | 21.7K | 0.01% | Aug 7, 2026 |
2 ten-percent owners hold 77.38M shares by Form 4, outside the officers-and-directors figure above · 14 people have not refiled in the last 18 months (3.69M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 17, 2026 | Jennie Raubacherdirector | Sale | 1,000 | $45.32 | 13,976 |
| Aug 10, 2026 | Erin Hagenofficer: SVP, CHRO | Sale | 2,285 | $44.39 | 31,052 |
| Jun 3, 2026 | Richard Madormoofficer: SVP, Worldwide Sales | Sale | 5,000 | $52.72 | 69,687 |
| May 22, 2026 | Troy Colemanofficer: SVP, General Manager, Products | Sale | 4,500 | $45.72 | 77,476 |
| May 21, 2026 | Roald Graham Websterofficer: VP, Chief Accounting Officer | Sale | 5,217 | $44.89 | 13,106 |
| May 18, 2026 | Ian Kentofficer: SVP, Global Operations | Sale | 2,642 | $41.56 | 25,392 |
| May 14, 2026 | Susan D. Lynchdirector | Sale | 16,711 | $45.46 | 12,805 |
| May 11, 2026 | Michael Dooguedirector, officer: President and CEO | Sale | 30,089 | $47.23 | 252,797 |
| May 11, 2026 | Sharon Brianskyofficer: SVP, GC and Secretary | Sale | 8,948 | $47.54 | 75,232 |
| Mar 2, 2026 | Erin Hagenofficer: SVP, CHRO | Sale | 2,598 | $35.00 | 30,094 |
CongressHouse and Senate disclosures
Not reported.