ALGM

ALLEGRO MICROSYSTEMS, INC.

Semiconductors & Related Devices · SIC 3674CIK 866291Held by 5 tracked managersEDGAR filings ↗10-K/10-Q ↗

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5 managers · Q2 2026 13F

13F bookWeight

Capital Research Global Investors

Capital Research Global InvestorsPosition history →

0.12%

(3.5%)

$835.9M

$716.87B13F book · 2026-06-30

Adage Capital Management

Adage Capital ManagementPosition history →

0.11%

(23.4%)

$78.1M

$71.32B13F book · 2026-06-30

Holocene Advisors

Holocene AdvisorsPosition history →

0.01%

NEW

$4.4M

$43.69B13F book · 2026-06-30

Maverick Capital

Lee AinsliePosition history →

0.01%

(76.1%)

$0.7M

$11.08B13F book · 2026-06-30

Alps Advisors

Alps AdvisorsPosition history →

0.01%

(31.5%)

$1.1M

$21.33B13F book · 2026-06-30

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.