Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ALLEGRO MICROSYSTEMS, INC.ALGM · Entity 3746 | VP, Chief Accounting Officer | May 21, 2026 | May 22, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
ALLEGRO MICROSYSTEMS, INC.
Report date May 21, 2026 · Filed May 22, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 13,106 |
Reported balance
After 2026-05-21 transaction · row 1
1 source rowRow 1 · 2026-05-21 · Sale · Disposed 5,217 · Balance 13,106 |
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 21, 2026 Filed May 22, 2026 20:16 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | SaleCommon Stock | 5,217 | $44.89 | $234,165.05 |
DisclosureSEC source: 0001193125-26-236938 · ownership.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,106 Read SEC document |
| May 16, 2026 Filed May 19, 2026 21:30 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | Tax withholdingCommon Stock | 4,277 | $43.10 | $184,338.70 |
DisclosureSEC source: 0001193125-26-231157 · ownership.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 18,323 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units and performance-vesting restricted stock units that were previously granted by the Issuer. Read SEC document |
| May 13, 2026 Filed May 15, 2026 20:20 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 544 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226836 · ownership.xml · nonDerivative · entry 2 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,600 F2 · shares: On May 15, 2023, the Reporting Person was granted an award of performance-vesting restricted stock units ("PSUs"), which vest in full on May 16, 2026 in the form of common stock, contingent upon the Issuer's attainment of certain performance objectives between one and three fiscal years. On May 13, 2026, the Compensation Committee of the Issuer's Board of Directors determined that the performance objective goals of the PSUs for the period ending March 27, 2026 had been met for the aggregate number of shares shown. Following certification, the certified portion of the award remains subject to the time-based vesting conditions, with the full amount scheduled to vest on May 16, 2026. Read SEC document |
| May 13, 2026 Filed May 15, 2026 20:20 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 4,756 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226836 · ownership.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,056 F1 · shares: Represents an award of Restricted Stock Units ("RSUs") granted on May 13, 2026. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in three equal annual installments beginning on May 16, 2027. Read SEC document |
| August 22, 2025 Filed Aug 25, 2025 20:15 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | SaleCommon Stock | 8,266 | $32.81 | $271,192.58 |
DisclosureSEC source: 0001970184-25-000003 · ownership.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,300 F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $32.795 to $31.830. The Reporting Person undertakes to provide to Allegro MicroSystems, Inc. ("ALGM"), any security holder of ALGM, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Read SEC document |
| May 16, 2025 Filed May 19, 2025 20:20 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | Tax withholdingCommon Stock | 4,948 | $27.51 | $136,119.48 |
DisclosureSEC source: 0000950170-25-074376 · ownership.xml · nonDerivative · entry 2 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,566 F2 · shares: Represents shares withheld to cover taxes due upon the vesting of performance-vesting restricted stock units and RSUs that were previously granted by the Issuer. Read SEC document |
| May 15, 2025 Filed May 19, 2025 20:20 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 9,765 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-074376 · ownership.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,514 F1 · shares: Represents an award of Restricted Stock Units ("RSUs") granted on May 15, 2025. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in three equal annual installments beginning on May 16, 2026. Read SEC document |
| May 13, 2025 Filed May 14, 2025 20:30 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 1,002 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-071491 · ownership.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 20,749 F1 · shares: On June 11, 2024, the Reporting Person was granted an award of performance-vesting restricted stock units (the "PSUs"). The PSUs were subject to the Issuer's attainment of certain performance objectives over the Issuer's 2025 fiscal year, and the PSUs are scheduled to vest in full on May 16, 2025 in the form of common stock. On May 13, 2025, the Compensation Committee of the Issuer's Board of Directors determined that the performance objective goals of the PSUs for the period ending March 28, 2025 had been met for the aggregate number of shares shown. Following certification, the award remains subject to the time-based vesting conditions, with the amount shown scheduled to vest in full on May 16, 2025. Read SEC document |
| June 11, 2024 Filed Jun 13, 2024 20:18 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 5,520 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-073022 · ownership.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · SVP, CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,747 F1 · shares: Represents an award of Restricted Stock Units ("RSUs") granted on June 11, 2024. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in three equal annual installments beginning on May 16, 2025. Read SEC document |
| May 16, 2024 Filed May 17, 2024 21:58 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | Tax withholdingCommon Stock | 3,113 | $29.75 | $92,611.75 |
DisclosureSEC source: 0000950170-24-061975 · ownership.xml · nonDerivative · entry 3 Webster Roald Graham · CIK 0001970184 · SVP, CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,227 F3 · shares: Represents shares withheld to cover taxes due upon the vesting of PSUs and RSUs that were previously granted by the Issuer. Read SEC document |
| May 15, 2024 Filed May 17, 2024 21:58 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 5,017 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-061975 · ownership.xml · nonDerivative · entry 2 Webster Roald Graham · CIK 0001970184 · SVP, CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,340 F2 · shares: Represents an award of restricted stock units ("RSUs") granted on May 15, 2024. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in two equal annual installments beginning on May 16, 2025. Read SEC document |
| May 15, 2024 Filed May 17, 2024 21:58 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 787 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-061975 · ownership.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · SVP, CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,323 F1 · shares: On May 15, 2023, the Reporting Person was granted an award of performance-vesting restricted stock units ("PSUs"), which vests over a three fiscal year period in the form of common stock, contingent upon the Issuer's attainment of certain performance objectives between one and three fiscal years. On May 15, 2024, the Compensation Committee of the Issuer's Board of Directors determined that the performance objective goals of the PSUs for the period ending March 29, 2024 had been met for the aggregate number of shares shown. Following certification, the certified portion of the award remains subject to the time-based vesting conditions, and a portion of the award vested on May 16, 2024, and the remaining amounts are scheduled to vest in part on May 16, 2025 and May 16, 2026, as applicable. Read SEC document |
| May 15, 2023 Filed May 17, 2023 21:06 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 7,910 | $0.00 | $0.00 |
DisclosureSEC source: 0001970184-23-000005 · wf-form4_168435758632728.xml · nonDerivative · entry 2 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,536 F2 · shares: Represents an award of RSUs granted on May 15, 2023. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in two installments, with 60% of the award vesting on May 16, 2024, and the remaining 40% of the award vesting on May 16, 2025. Read SEC document |
| May 15, 2023 Filed May 17, 2023 21:06 UTC | ALLEGRO MICROSYSTEMS, INC. ALGM · Entity 3746 | GrantCommon Stock | 3,626 | $0.00 | $0.00 |
DisclosureSEC source: 0001970184-23-000005 · wf-form4_168435758632728.xml · nonDerivative · entry 1 Webster Roald Graham · CIK 0001970184 · VP, Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,626 F1 · shares: Represents an award of Restricted Stock Units ("RSUs") granted on May 15, 2023. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in three equal annual installments beginning on May 16, 2024. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.