Allegro Microsystems Inc (ALGM) 13F Investor Activity Report (Q2 2026)

ALGM ranks #1627 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.

ALGM is a top-conviction position for S Squared Technology, LLC — at 7.2% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.

The largest dollar stake in ALGM belongs to FMR LLC, but the position matters far more to S Squared Technology, LLC, who has 7.2% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.

Fidelity has added to its ALGM position for two straight quarters, increasing it by $1.2B to reach $1.8B today.

Ken Griffin has trimmed its ALGM position for two straight quarters, cutting it by $58.0M while still holding $13.7M.

ALGM is down 0% today, but institutions show net buying of $1.5B this quarter — a divergence between today's price move and the underlying institutional flow.

ALGM posted net income of $14.2M over the trailing twelve months, and currently trades at a P/E of 462.2.

• Profitable — net income of $14.2M over the trailing twelve months
• Revenue grew 30.5% year over year
• Net income improved year over year, from -$73.0M to $14.2M
• Generated $163.1M in positive operating cash flow
• Current ratio of 3.45x — enough short-term assets to cover short-term liabilities
• Liabilities run 0.48x equity — within a conventional range