ALGM
Allegro MicroSystems, Inc. · Technology · Semiconductors
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 18.58K | $674,166 | n/a | −1 |
| Q2 2026 | 109 | +3 | 129.87M | $8.95B | +13 | −9 |
| Q1 2026 | 108 | -8 | 117.16M | $3.65B | +5 | −14 |
| Q4 2025 | 117 | +2 | 125.26M | $3.30B | +3 | n/a |
| Q3 2025 | 18 | 0 | 84.17M | $2.46B | +1 | −2 |
| Q2 2025 | 16 | +3 | 70.10M | $2.40B | +3 | n/a |
| Q1 2025 | 10 | 0 | 21.03M | $528.55M | +1 | −1 |
| Q4 2024 | 10 | +1 | 20.68M | $452.03M | +1 | n/a |
| Q3 2024 | 8 | -3 | 12.20M | $284.36M | +1 | −4 |
| Q2 2024 | 11 | n/a | 5.92M | $167.08M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wealth Enhancement Advisory… | 16.40K | +49.8% | $594,800 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | TD Waterhouse Canada Inc. | 2.18K | -11.4% | $79,366 | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Assetmark, Inc | $439,093 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 316 holders, 129.66M shares, $4.00B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Director · 1.00K sh · $45,320
Officer · 2.29K sh · $101,431
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology