Allegro MicroSystems Ownership | Who Owns Allegro MicroSystems?
Allegro MicroSystems Ownership Summary
Allegro MicroSystems is owned by 79.04% institutional investors, 33.16% insiders. Fmr is the largest institutional shareholder, holding 12.04% of ALGM shares. Fidelity Select Semiconductors is the top mutual fund, with 7.34% of its assets in Allegro MicroSystems shares.
ALGM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Allegro MicroSystems | 79.04% | 33.16% | -12.20% |
| Sector | Technology Stocks | 143.99% | 12.56% | -56.55% |
| Idea | Semiconductor Stocks List | 62.65% | 7.35% | 30.01% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 22.77M | 12.04% | $497.85M |
| Capital research global investors | 15.90M | 8.62% | $543.77M |
| Vanguard group | 14.08M | 7.44% | $307.85M |
| Blackrock funding, inc. /de | 11.79M | 6.39% | $403.10M |
| Jpmorgan chase | 10.53M | 5.57% | $230.22M |
| Blackrock | 6.63M | 3.45% | $187.36M |
| State street | 5.88M | 3.19% | $128.48M |
| Wellington management group llp | 3.99M | 2.11% | $87.30M |
| Clearbridge investments | 3.38M | 1.79% | $74.00M |
| Frontier capital management | 2.37M | 1.28% | $80.89M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| S squared | 397.45K | 5.73% | $13.59M |
| Ecofi investissements sa | 27.10K | 5.00% | $4.50M |
| Analog century management lp | 2.00M | 2.93% | $43.75M |
| Pier capital | 262.15K | 1.37% | $8.96M |
| Lisanti capital growth | 109.97K | 1.04% | $3.76M |
| Summit partners public asset management | 1.15M | 1.00% | $39.46M |
| G2 investment partners management | 130.00K | 0.97% | $4.44M |
| Frontier capital management | 2.37M | 0.75% | $80.89M |
| Prentiss smith | 25.06K | 0.41% | $731.75K |
| Nkcfo | 28.00K | 0.40% | $957.00K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Capital research global investors | 15.90M | 0.11% | 4.84M |
| Schonfeld strategic advisors | 1.62M | 0.21% | 1.62M |
| Norges bank | 1.23M | 0.00% | 1.23M |
| Ubs group | 1.34M | 0.01% | 1.01M |
| Wellington management group llp | 3.99M | 0.02% | 934.05K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 22.77M | 0.03% | -5.48M |
| Manufacturers life insurance company, the | 102.28K | 0.00% | -2.05M |
| Freestone grove partners lp | - | - | -1.60M |
| Ameriprise financial | 360.52K | 0.00% | -1.59M |
| Morgan stanley | 2.08M | 0.00% | -1.44M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Schonfeld strategic advisors | 1.62M | 0.21% | 1.62M | $35.43M |
| Norges bank | 1.23M | 0.00% | 1.23M | $26.93M |
| Bnp paribas arbitrage, snc | 639.26K | 0.01% | 639.26K | $13.97M |
| Scout investments | 389.39K | 0.30% | 389.39K | $11.00M |
| Point72 asset management | 294.56K | 0.02% | 294.56K | $10.07M |
Sold Out
| Holder | Change |
|---|---|
| Financial gravity asset management | -1.00 |
| Quest partners | -1.00 |
| Jfs wealth advisors | -1.00 |
| Claris advisors, llc / mo / | -2.00 |
| Activest wealth management | -3.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 297 | -4.81% | 145,898,259 | -6.38% | 79 | 1.10% | 152 | -13.64% | 101 | 27.85% |
| Mar 31, 2025 | 313 | 12.59% | 156,307,245 | 9.92% | 84 | 1.42% | 176 | 35.38% | 81 | -27.03% |
| Dec 31, 2024 | 277 | 2.59% | 142,162,783 | 0.57% | 77 | 1.38% | 130 | -17.72% | 110 | 50.68% |
| Sep 30, 2024 | 268 | -6.29% | 141,128,709 | 31.62% | 74 | 2.43% | 157 | 4.67% | 72 | -20.00% |
| Jun 30, 2024 | 284 | -4.70% | 107,220,294 | 3.33% | 55 | 1.92% | 148 | 0.68% | 90 | -9.09% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Fidelity Select Semiconductors | 13.59M | 7.34% | - |
| American Funds SMALLCAP World A | 10.16M | 5.50% | 166.57K |
| American Funds Capital World Gr&Inc A | 4.36M | 2.36% | 4.36M |
| Capital Group World Growth & Inc Cmp | 4.36M | 2.36% | 4.36M |
| iShares Core S&P Mid-Cap ETF | 4.26M | 2.30% | - |
| Vanguard US Total Market Shares ETF | 4.00M | 2.17% | 890.47K |
| Vanguard Total Stock Mkt Idx Inv | 3.79M | 2.05% | -79.69K |
| Vanguard Information Technology ETF | 2.92M | 1.58% | 29.75K |
| Vanguard Small Cap Index | 2.92M | 1.58% | -19.61K |
| Fidelity Small Cap Value Fund | 2.23M | 1.21% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 22, 2025 | Webster Roald Graham | VP, Chief Accounting Officer | Sell | $271.19K |
| Aug 12, 2025 | Lury Richard R. | - | Sell | $222.67K |
| Aug 04, 2025 | Hagen Erin | SVP, CHRO | Sell | $157.24K |
| Jun 11, 2025 | Lury Richard R. | - | Sell | $94.39K |
| Jun 04, 2025 | Lury Richard R. | - | Sell | $189.04K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | 2 |
| 2025 Q2 | - | 2 |
| 2025 Q1 | - | - |
| 2024 Q4 | 3 | - |
| 2024 Q3 | - | 2 |
ALGM Ownership FAQ
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