Allegro MicroSystems Ownership | Who Owns Allegro MicroSystems?
Allegro MicroSystems Ownership Summary
Allegro MicroSystems is owned by 80.66% institutional investors, 32.54% insiders. Fmr is the largest institutional shareholder, holding 13.80% of ALGM shares. Fidelity Select Semiconductors is the top mutual fund, with 8.98% of its assets in Allegro MicroSystems shares.
ALGM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Allegro MicroSystems | 80.66% | 32.54% | -13.20% |
| Sector | Technology Stocks | 51.87% | 15.02% | 33.11% |
| Idea | Semiconductor Stocks List | 73.13% | 6.84% | 20.03% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 25.58M | 13.80% | $1.78B |
| Vanguard group | 14.20M | 7.67% | $374.66M |
| Blackrock funding, inc. /de | 13.89M | 7.50% | $966.97M |
| Invesco | 13.68M | 7.38% | $952.29M |
| Jpmorgan chase | 12.72M | 6.87% | $844.87M |
| Capital research global investors | 12.01M | 6.48% | $835.89M |
| Blackrock | 6.63M | 3.45% | $187.36M |
| State street | 5.68M | 3.06% | $395.19M |
| Vanguard capital management | 5.51M | 2.97% | $383.52M |
| Price t rowe associates inc /md/ | 3.71M | 2.00% | $258.31M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| S squared | 332.45K | 7.18% | $23.15M |
| Lightrock netherlands b.v. | 206.49K | 2.84% | $14.38M |
| Aperture investors | 443.43K | 2.79% | $30.87M |
| Pier capital | 227.78K | 2.10% | $15.86M |
| Talos eurisko asset management lp | 182.60K | 1.81% | $12.71M |
| Lisanti capital growth | 107.86K | 1.65% | $7.51M |
| Sphera management technology funds | 47.55K | 1.16% | $3.31M |
| Prentiss smith | 23.96K | 0.92% | $1.67M |
| Kennedy capital management | 689.67K | 0.85% | $48.01M |
| Granite investment partners | 215.68K | 0.77% | $15.02M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Invesco | 13.68M | 0.08% | 4.93M |
| Jpmorgan chase | 12.72M | 0.05% | 4.07M |
| Price t rowe associates inc /md/ | 3.71M | 0.03% | 3.60M |
| Blackrock funding, inc. /de | 13.89M | 0.01% | 1.39M |
| Massachusetts financial services co /ma/ | 1.44M | 0.03% | 1.37M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Macquarie group | - | - | -2.20M |
| Analog century management lp | - | - | -1.89M |
| Fmr | 25.58M | 0.08% | -1.84M |
| Artisan partners limited partnership | - | - | -1.43M |
| Point72 asset management | - | - | -1.12M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Sixth street partners management company | 1.36M | 0.01% | 1.36M | $94.72M |
| Norges bank | 1.29M | 0.01% | 1.29M | $90.15M |
| Scout investments | 389.39K | 0.30% | 389.39K | $11.00M |
| Braun stacey associates | 366.49K | 0.72% | 366.49K | $25.52M |
| Cubist systematic strategies | 273.68K | 0.04% | 273.68K | $7.99M |
Sold Out
| Holder | Change |
|---|---|
| Financial gravity asset management | -1.00 |
| Jfs wealth advisors | -1.00 |
| Claris advisors, llc / mo / | -2.00 |
| Bay harbor wealth management | -3.00 |
| Eastern bank | -3.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 388 | 17.58% | 149,476,509 | 8.05% | 80 | 1.45% | 221 | 13.92% | 108 | 27.06% |
| Mar 31, 2026 | 156 | -49.84% | 24,676,223 | -81.93% | 13 | 0.25% | 89 | -33.58% | 37 | -69.42% |
| Dec 31, 2025 | 93 | -70.48% | 18,824,783 | -86.15% | 10 | 0.19% | 31 | -78.91% | 41 | -62.04% |
| Sep 30, 2025 | 113 | -61.17% | 29,584,099 | -78.76% | 16 | 0.28% | 45 | -70.20% | 45 | -54.55% |
| Jun 30, 2025 | 297 | -4.81% | 145,898,259 | -6.38% | 79 | 1.10% | 152 | -13.64% | 101 | 27.85% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Fidelity Select Semiconductors | 16.74M | 8.98% | - |
| American Funds Capital World Gr&Inc A | 5.93M | 3.20% | - |
| Capital Group World Growth & Inc Cmp | 5.93M | 3.18% | - |
| American Funds Cptl Wld Gr&Inc A | 5.93M | 3.18% | - |
| American Funds SMALLCAP World A | 5.50M | 2.95% | -146.82K |
| Invesco Small Cap Value A | 4.44M | 2.38% | - |
| iShares Core S&P Mid-Cap ETF | 4.26M | 2.29% | 131.00 |
| Vanguard US Total Market Shares ETF | 4.00M | 2.17% | 890.47K |
| Vanguard Total Stock Mkt Idx Inv | 3.84M | 2.06% | -1.50K |
| Vanguard Morn Total Stk Mkt Idx Investor | 3.84M | 2.06% | -1.50K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 10, 2026 | Hagen Erin | SVP, CHRO | Sell | $101.43K |
| Jun 03, 2026 | Madormo Richard | SVP, Worldwide Sales | Sell | $263.60K |
| May 22, 2026 | Coleman Troy | SVP, General Manager, Products | Sell | $205.74K |
| May 21, 2026 | Webster Roald Graham | VP, Chief Accounting Officer | Sell | $234.17K |
| May 18, 2026 | Kent Ian | SVP, Global Operations | Sell | $109.80K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 1 |
| 2026 Q2 | - | 7 |
| 2026 Q1 | - | 3 |
| 2025 Q4 | - | 1 |
| 2025 Q3 | - | 3 |
ALGM Ownership FAQ
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