Allegro MicroSystems (ALGM)
Designs magnetic sensors and power ICs for vehicles, automation, and energy-efficient systems.
$35.83
After hours+0.31 (+0.87%)
At close$35.52(+0.06%)
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13F · 13D/G · Form 4
| Institutions | 80.28% | 149.64M shares | |
|---|---|---|---|
| 393 holders · as of Jun 30, 2026 | |||
| Insiders | 1.09% | 2.03M shares | |
| 19 holders · as of Aug 18, 2026 | |||
| Strategic holders | 32.05% | 59.73M shares | |
| 1 holder · as of Aug 9, 2024 | |||
| Adds to | 113.42% | ||
186.40M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
These groups come from separate filings that can overlap, so they add to 113.42%; nothing is left for Other.
13F, as of Jun 30, 2026
393 holders · 149.64M shares · 105 new positions · 224 increased · 108 reduced · 44 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 25.58M | 13.72% | −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 | 4.11% | −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 |
13D/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 |
Form 4
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 |
House and Senate disclosures
Not reported.