Allegro Microsystems
ALGM · NASDAQ
$33.91+$0.74 (+2.23%)TodayMarket closed ·
Prev close $33.17
Who owns ALGM
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 82.2% of ALGM’s shares.
- Sanken Electric Co., Ltd.32.1%
- Fidelity Management & Research Company LLC13.2%
- Invesco Advisers, Inc.7.1%
- Capital Research Global Investors6.4%
- Next 6 largest institutions23.3%
- All other shareholders17.8%
| Holder | Shares | % of shares |
|---|---|---|
| Sanken Electric Co., Ltd. | 59.73M | 32.06% |
| Fidelity Management & Research Company LLC | 24.53M | 13.16% |
| Invesco Advisers, Inc. | 13.29M | 7.13% |
| Capital Research Global Investors | 12.01M | 6.44% |
| BlackRock Institutional Trust Company, N.A. | 11.60M | 6.22% |
| JP Morgan Asset Management | 9.47M | 5.08% |
| Vanguard Portfolio Management, LLC | 7.67M | 4.12% |
| State Street Investment Management (US) | 5.68M | 3.05% |
| Vanguard Capital Management, LLC | 5.51M | 2.96% |
| T. Rowe Price Associates, Inc. | 3.59M | 1.92% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Select Semiconductors Portfolio | 15.22M | 8.17% |
| American Funds Capital World Growth & Income Fund | 5.93M | 3.18% |
| American Funds SMALLCAP World Fund | 5.50M | 2.95% |
| Invesco Small Cap Value Fund | 4.44M | 2.38% |
| iShares Core S&P Mid-Cap ETF | 4.35M | 2.33% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $3.57M (9 trades) of ALGM on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Willett Robert | Award | 619 | — |
| Raubacher Jennie | Sale | 1.00K | $45.32K |
| Hagen Erin | Sale | 2.29K | $101.43K |
| Raubacher Jennie | Award | 4.25K | — |
| Suzuki Yoshihiro | Award | 4.25K | — |
| Willett Robert | Award | 4.25K | — |
| WHITE BRIAN C | Award | 4.25K | — |
| Palepu Krishna G. | Award | 4.25K | — |
| MARTIN JOSEPH R | Award | 4.25K | — |
| PUMA MARY G | Award | 4.25K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 11.39M
- Days to cover
- 4.40
- % of shares outstanding
- 6.11%
- Average daily volume
- 2.59M
- Change since last report
- +9.1%
Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.