ALLEGRO MICROSYSTEMS INC (ALGM) Institutional Ownership Changes & 13F Activity
ALLEGRO MICROSYSTEMS INC (ALGM). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Invesco Ltd., Price T Rowe Associates Inc, Nomura Asset Management International Inc., Ameriprise Financial Inc, and Alliancebernstein L.P..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Integrated Wealth Concepts Llc | Sell | -13,026 | -74.9% | 4,365 | $303.91K | Q2 2026 | Sep 09, 2026 |
| Manufacturers Life Insurance Company, The | Buy | +10,544 | +13.0% | 91,616 | $6.38M | Q2 2026 | Sep 09, 2026 |
| Corient Private Wealth Llc | Buy | +5,526 | +39.8% | 19,425 | $1.35M | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Sell | -5,208 | -3.5% | 144,618 | $10.07M | Q2 2026 | Aug 24, 2026 |
| Mercer Global Advisors Inc | Buy | +1,803 | +15.9% | 13,153 | $915.70K | Q2 2026 | Aug 19, 2026 |
| United Capital Financial Advisors, Llc | Buy | +3,414 | — | 3,414 | $237.68K | Q2 2026 | Aug 17, 2026 |
| Public Employees Retirement System Of Ohio | Sell | -529 | -1.4% | 36,089 | $2.51M | Q2 2026 | Aug 17, 2026 |
| Transamerica Financial Advisors, Llc | Buy | +360 | +1384.6% | 386 | $26.87K | Q2 2026 | Aug 17, 2026 |
| Invesco Ltd. | Buy | +13,678,393 | — | 13,678,393 | $952.29M | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +3,596,489 | +3160.4% | 3,710,288 | $258.31M | Q2 2026 | Aug 14, 2026 |
| Nomura Asset Management International Inc. | Sell | -921,138 | -44.3% | 1,159,503 | $80.72M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +608,793 | — | 608,793 | $42.95M | Q2 2026 | Aug 14, 2026 |
| Alliancebernstein L.P. | Sell | -522,167 | -30.3% | 1,201,203 | $37.87M | Q2 2026 | Aug 14, 2026 |
| Adage Capital Partners Gp, L.L.C. | Sell | -342,787 | -23.4% | 1,121,950 | $78.11M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Sell | -295,847 | -46.2% | 343,994 | $23.95M | Q2 2026 | Aug 14, 2026 |
| Jacobs Levy Equity Management, Inc | Sell | -281,269 | -91.3% | 26,833 | $1.87M | Q2 2026 | Aug 14, 2026 |
| Sirios Capital Management L P | Sell | -274,983 | -92.1% | 23,438 | $1.63M | Q2 2026 | Aug 14, 2026 |
| Aperture Investors, Llc | Sell | -266,247 | -37.5% | 443,427 | $30.87M | Q2 2026 | Aug 14, 2026 |
| Kennedy Capital Management Llc | Sell | -220,371 | -24.2% | 689,668 | $48.01M | Q2 2026 | Aug 14, 2026 |
| Man Group Plc | Sell | -211,248 | -69.0% | 95,101 | $6.62M | Q2 2026 | Aug 14, 2026 |
| Silvercrest Asset Management Group Llc | Sell | -170,809 | -24.1% | 537,082 | $37.39M | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Buy | +148,627 | +43.1% | 493,753 | $33.42M | Q2 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Buy | +141,841 | +21.1% | 814,937 | $56.74M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +137,842 | +9.6% | 1,575,057 | $109.66M | Q2 2026 | Aug 14, 2026 |
| S Squared Technology, Llc | Sell | -125,000 | -27.3% | 332,451 | $23.15M | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Buy | +78,160 | +257.6% | 108,497 | $7.55M | Q2 2026 | Aug 14, 2026 |
| Canada Pension Plan Investment Board | Sell | -78,000 | -63.9% | 44,000 | $3.06M | Q2 2026 | Aug 14, 2026 |
| Raymond James Financial Inc | Sell | -67,693 | -6.8% | 928,060 | $64.61M | Q2 2026 | Aug 14, 2026 |
| Frontier Capital Management Co Llc | Buy | +66,873 | +25.3% | 330,904 | $23.04M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +66,275 | +7.7% | 921,728 | $64.17M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about ALGM activity
Which institutional owners are buying ALGM?
Institutional owners buying ALGM include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ALGM activity?
"Buy" means an investor increased their reported position in ALGM compared to the prior reporting period. This reflects growing exposure to ALLEGRO MICROSYSTEMS INC (ALGM) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ALGM increasing?
Institutional interest in ALGM can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related ALGM Institutional Insights
- ALGM Overview
- ALGM 13F Institutional Holders
- ALGM Top Institutional Shareholders
- Technology Sector Institutional Ownership
- Technology Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Technology Stocks By Institutional Investors
- Most Sold Technology Stocks By Institutional Investors
- ALGM Insider Trading & SEC Form 4 Activity
- ALGM Articles
- Top Institutional Investor Stock Rankings