Last 12 months
Inside the activity.
0 purchase rows · 13 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 1 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 1 |
| Mar 2026 | 0 | 2 |
| Apr 2026 | 0 | 0 |
| May 2026 | 0 | 6 |
| Jun 2026 | 0 | 1 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 2 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/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 | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 30, 2026 Filed Oct 2, 2026 00:16 UTC |
Willett RobertDirector
|
GrantDeferred Stock Units · Derivative | 618.982 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-410685 · ownership.xml · derivative · entry 1 Willett Robert · CIK 0001438093 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,869.982 Underlying: Common Stock · 618.982 shares Expires not disclosed F1 · derivative.exercise_price: Each deferred stock unit ("DSU") represents a contingent right to receive one share of the Issuer's Common Stock. F2 · shares: As part of the Issuer's non-employee director compensation program, the reporting person elected to receive his quarterly cash board retainer fee in the form of DSUs pursuant to a prior election under the Issuer's Deferred Compensation Plan for Non-Employee Directors. The number of DSUs was calculated by dividing the quarterly cash retainer amount deferred by $36.35, the Fair Market Value of a share of the Issuer's Common Stock on the effective date of the deferral. F2 · price: As part of the Issuer's non-employee director compensation program, the reporting person elected to receive his quarterly cash board retainer fee in the form of DSUs pursuant to a prior election under the Issuer's Deferred Compensation Plan for Non-Employee Directors. The number of DSUs was calculated by dividing the quarterly cash retainer amount deferred by $36.35, the Fair Market Value of a share of the Issuer's Common Stock on the effective date of the deferral. F3 · derivative.exercise_date: The DSUs are fully vested when granted and will be settled in a lump sum in whole shares of the Issuer's Common Stock, with cash paid in lieu of any fractional DSU, following the reporting person's separation from service, disability, or death. F3 · derivative.expiration_date: The DSUs are fully vested when granted and will be settled in a lump sum in whole shares of the Issuer's Common Stock, with cash paid in lieu of any fractional DSU, following the reporting person's separation from service, disability, or death. Read SEC document |
| August 17, 2026 Filed Aug 18, 2026 20:15 UTC |
Raubacher JennieDirector
|
SaleCommon Stock | 1,000 | $45.32 | $45,320.00 |
DisclosureSEC source: 0001193125-26-355476 · ownership.xml · nonDerivative · entry 1 Raubacher Jennie · CIK 0002016237 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,976 F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 19, 2026. Details regarding the Reporting Person's trading plan were reported in Part II, Item 5 of the Issuer's Quarterly Report on Form 10-Q for the period ending June 26, 2026, filed with the SEC on July 31, 2026. Read SEC document |
| August 10, 2026 Filed Aug 12, 2026 20:16 UTC |
Hagen ErinSVP, CHRO
|
SaleCommon Stock | 2,285 | $44.39 | $101,431.15 |
DisclosureSEC source: 0001193125-26-346892 · ownership.xml · nonDerivative · entry 1 Hagen Erin · CIK 0002022960 · SVP, CHRO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 31,052 F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 11, 2026. Details regarding the Reporting Person's trading plan were reported in Part II, Item 5 of the Issuer's Quarterly Report on Form 10-Q for the period ending June 26, 2026, filed with the SEC on July 31, 2026. Read SEC document |
| August 05, 2026 Filed Aug 7, 2026 11:03 UTC |
Suzuki YoshihiroDirector
|
GrantCommon Stock | 4,251 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-339123 · ownership.xml · nonDerivative · entry 1 Suzuki Yoshihiro · CIK 0001828872 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 217,811 F1 · shares: Represents an award of fully vested, unrestricted shares of the Issuer's Common Stock granted to the reporting person as annual non-employee director equity compensation pursuant to the Company's Annual Non-Employee Director Compensation Program. Read SEC document |
| August 05, 2026 Filed Aug 7, 2026 11:03 UTC |
MARTIN JOSEPH RDirector
|
GrantCommon Stock | 4,251 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-339121 · ownership.xml · nonDerivative · entry 1 MARTIN JOSEPH R · CIK 0001195846 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 39,430 F1 · shares: Represents an award of fully vested, unrestricted shares of the Issuer's Common Stock granted to the reporting person as annual non-employee director equity compensation pursuant to the Company's Annual Non-Employee Director Compensation Program. Read SEC document |
| August 05, 2026 Filed Aug 7, 2026 11:02 UTC |
PUMA MARY GDirector
|
GrantCommon Stock | 4,251 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-339114 · ownership.xml · nonDerivative · entry 1 PUMA MARY G · CIK 0001158015 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,734 F1 · shares: Represents an award of fully vested, unrestricted shares of the Issuer's Common Stock granted to the reporting person as annual non-employee director equity compensation pursuant to the Company's Annual Non-Employee Director Compensation Program. Read SEC document |
| August 05, 2026 Filed Aug 7, 2026 11:02 UTC |
Palepu Krishna G.Director
|
GrantCommon Stock | 4,251 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-339105 · ownership.xml · nonDerivative · entry 1 Palepu Krishna G. · CIK 0001345098 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,212 F1 · shares: Represents an award of fully vested, unrestricted shares of the Issuer's Common Stock granted to the reporting person as annual non-employee director equity compensation pursuant to the Company's Annual Non-Employee Director Compensation Program. Read SEC document |
| August 05, 2026 Filed Aug 7, 2026 11:02 UTC |
Raubacher JennieDirector
|
GrantDeferred Stock Units · Derivative | 4,251 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-339103 · ownership.xml · derivative · entry 1 Raubacher Jennie · CIK 0002016237 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,251 Underlying: Common Stock · 4,251 shares Expires not disclosed F1 · derivative.exercise_price: Each deferred stock unit ("DSU") represents a contingent right to receive one share of the Issuer's Common Stock. F2 · shares: As part of the Company's non-employee director compensation program, the reporting person elected to receive their annual non-employee director equity compensation in the form of DSUs under the Issuer's 2020 Omnibus Incentive Compensation Plan and pursuant to a prior election under the Company's Deferred Compensation Plan for Non-Employee Directors. The DSUs were credited on a one-for-one basis relative to the award of shares of the Issuer's Common Stock. F3 · derivative.exercise_date: The DSUs are fully vested when granted and will be settled in shares of the Issuer's Common Stock following the reporting person's separation from service, disability, or death. F3 · derivative.expiration_date: The DSUs are fully vested when granted and will be settled in shares of the Issuer's Common Stock following the reporting person's separation from service, disability, or death. Read SEC document |
| August 05, 2026 Filed Aug 7, 2026 11:02 UTC |
Willett RobertDirector
|
GrantDeferred Stock Units · Derivative | 4,251 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-339102 · ownership.xml · derivative · entry 1 Willett Robert · CIK 0001438093 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,251 Underlying: Common Stock · 4,251 shares Expires not disclosed F1 · derivative.exercise_price: Each deferred stock unit ("DSU") represents a contingent right to receive one share of the Issuer's Common Stock. F2 · shares: As part of the Company's non-employee director compensation program, the reporting person elected to receive their annual non-employee director equity compensation in the form of DSUs under the Issuer's 2020 Omnibus Incentive Compensation Plan and pursuant to a prior election under the Company's Deferred Compensation Plan for Non-Employee Directors. The DSUs were credited on a one-for-one basis relative to the award of shares of the Issuer's Common Stock. F3 · derivative.exercise_date: The DSUs are fully vested when granted and will be settled in shares of the Issuer's Common Stock following the reporting person's separation from service, disability, or death. F3 · derivative.expiration_date: The DSUs are fully vested when granted and will be settled in shares of the Issuer's Common Stock following the reporting person's separation from service, disability, or death. Read SEC document |
| August 05, 2026 Filed Aug 7, 2026 11:01 UTC |
WHITE BRIAN CDirector
|
GrantDeferred Stock Units · Derivative | 4,251 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-339100 · ownership.xml · derivative · entry 1 WHITE BRIAN C · CIK 0001438029 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,251 Underlying: Common Stock · 4,251 shares Expires not disclosed F1 · derivative.exercise_price: Each deferred stock unit ("DSU") represents a contingent right to receive one share of the Issuer's Common Stock. F2 · shares: As part of the Company's non-employee director compensation program, the reporting person elected to receive their annual non-employee director equity compensation in the form of DSUs under the Issuer's 2020 Omnibus Incentive Compensation Plan and pursuant to a prior election under the Company's Deferred Compensation Plan for Non-Employee Directors. The DSUs were credited on a one-for-one basis relative to the award of shares of the Issuer's Common Stock. F3 · derivative.exercise_date: The DSUs are fully vested when granted and will be settled in shares of the Issuer's Common Stock following the reporting person's separation from service, disability, or death. F3 · derivative.expiration_date: The DSUs are fully vested when granted and will be settled in shares of the Issuer's Common Stock following the reporting person's separation from service, disability, or death. Read SEC document |
| June 17, 2026 Filed Jun 18, 2026 20:25 UTC |
WHITE BRIAN CDirector
|
GrantCommon Stock | 594 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-275927 · ownership.xml · nonDerivative · entry 1 WHITE BRIAN C · CIK 0001438029 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 594 F1 · shares: Represents an award of Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest on the date of the next annual meeting following the grant date. Read SEC document |
| June 03, 2026 Filed Jun 4, 2026 20:16 UTC |
Madormo RichardSVP, Worldwide Sales
|
SaleCommon Stock | 5,000 | $52.72 | $263,600.00 |
DisclosureSEC source: 0001193125-26-257433 · ownership.xml · nonDerivative · entry 1 Madormo Richard · CIK 0002061106 · SVP, Worldwide Sales 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 69,687 Read SEC document |
| May 22, 2026 Filed May 26, 2026 20:16 UTC |
Coleman TroySVP, General Manager, Products
|
SaleCommon Stock | 4,500 | $45.72 | $205,740.00 |
DisclosureSEC source: 0001193125-26-239343 · ownership.xml · nonDerivative · entry 1 Coleman Troy · CIK 0002090081 · SVP, General Manager, Products 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 77,476 Read SEC document |
| May 21, 2026 Filed May 22, 2026 20:16 UTC |
Webster Roald GrahamVP, Chief Accounting Officer
|
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 18, 2026 Filed May 19, 2026 21:30 UTC |
Kent IanSVP, Global Operations
|
SaleCommon Stock | 2,642 | $41.56 | $109,801.52 |
DisclosureSEC source: 0001193125-26-231167 · ownership.xml · nonDerivative · entry 2 Kent Ian · CIK 0002104292 · SVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,392 Read SEC document |
| May 16, 2026 Filed May 19, 2026 21:30 UTC |
Hagen ErinSVP, CHRO
|
Tax withholdingCommon Stock | 5,815 | $43.10 | $250,626.50 |
DisclosureSEC source: 0001193125-26-231165 · ownership.xml · nonDerivative · entry 1 Hagen Erin · CIK 0002022960 · SVP, CHRO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,337 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| May 16, 2026 Filed May 19, 2026 21:30 UTC |
Kent IanSVP, Global Operations
|
Tax withholdingCommon Stock | 2,345 | $43.10 | $101,069.50 |
DisclosureSEC source: 0001193125-26-231167 · ownership.xml · nonDerivative · entry 1 Kent Ian · CIK 0002104292 · SVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 28,034 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| May 16, 2026 Filed May 19, 2026 21:30 UTC |
Webster Roald GrahamVP, Chief Accounting Officer
|
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 16, 2026 Filed May 19, 2026 21:30 UTC |
Doogue MichaelDirector · President and CEO
|
Tax withholdingCommon Stock | 60,508 | $43.10 | $2,607,894.80 |
DisclosureSEC source: 0001193125-26-231155 · ownership.xml · nonDerivative · entry 1 Doogue Michael · CIK 0001828862 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 279,076 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 16, 2026 Filed May 19, 2026 21:30 UTC |
Madormo RichardSVP, Worldwide Sales
|
Tax withholdingCommon Stock | 5,439 | $43.10 | $234,420.90 |
DisclosureSEC source: 0001193125-26-231162 · ownership.xml · nonDerivative · entry 1 Madormo Richard · CIK 0002061106 · SVP, Worldwide Sales 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 74,687 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| May 16, 2026 Filed May 19, 2026 21:30 UTC |
D'Antilio DerekEVP, CFO & Treasurer
|
Tax withholdingCommon Stock | 37,840 | $43.10 | $1,630,904.00 |
DisclosureSEC source: 0001193125-26-231164 · ownership.xml · nonDerivative · entry 1 D'Antilio Derek · CIK 0001904082 · EVP, CFO & Treasurer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 238,813 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 16, 2026 Filed May 19, 2026 21:27 UTC |
Coleman TroySVP, General Manager, Products
|
Tax withholdingCommon Stock | 9,670 | $43.10 | $416,777.00 |
DisclosureSEC source: 0001193125-26-231142 · ownership.xml · nonDerivative · entry 1 Coleman Troy · CIK 0002090081 · SVP, General Manager, Products 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 81,976 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| May 16, 2026 Filed May 19, 2026 21:28 UTC |
Briansky SharonSVP, GC and Secretary
|
Tax withholdingCommon Stock | 13,942 | $43.10 | $600,900.20 |
DisclosureSEC source: 0001193125-26-231146 · ownership.xml · nonDerivative · entry 1 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 79,753 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 14, 2026 Filed May 15, 2026 20:20 UTC |
Lynch Susan DDirector
|
SaleCommon Stock | 16,711 | $45.46 | $759,625.24 |
DisclosureSEC source: 0001193125-26-226840 · ownership.xml · nonDerivative · entry 1 Lynch Susan D · CIK 0001784973 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,805 F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $45.45 to $45.57. 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 13, 2026 Filed May 15, 2026 20:20 UTC |
Kent IanSVP, Global Operations
|
GrantCommon Stock | 8,492 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226844 · ownership.xml · nonDerivative · entry 1 Kent Ian · CIK 0002104292 · SVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,379 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 |
| May 13, 2026 Filed May 15, 2026 20:20 UTC |
Willett RobertDirector
|
GrantCommon Stock | 1,094 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226845 · ownership.xml · nonDerivative · entry 1 Willett Robert · CIK 0001438093 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,094 F1 · shares: Represents an award of Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest on the date of the next annual meeting following the grant date. Read SEC document |
| May 13, 2026 Filed May 15, 2026 20:20 UTC |
Madormo RichardSVP, Worldwide Sales
|
GrantCommon Stock | 19,815 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226842 · ownership.xml · nonDerivative · entry 1 Madormo Richard · CIK 0002061106 · SVP, Worldwide Sales 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 80,126 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 |
| May 13, 2026 Filed May 15, 2026 20:20 UTC |
D'Antilio DerekEVP, CFO & Treasurer
|
GrantCommon Stock | 30,438 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226843 · ownership.xml · nonDerivative · entry 2 D'Antilio Derek · CIK 0001904082 · EVP, CFO & Treasurer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 276,653 F2 · shares: On May 15, 2023 and May 15, 2025, the Reporting Person was granted awards 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 awards remain 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 |
D'Antilio DerekEVP, CFO & Treasurer
|
GrantCommon Stock | 29,439 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226843 · ownership.xml · nonDerivative · entry 1 D'Antilio Derek · CIK 0001904082 · EVP, CFO & Treasurer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 246,215 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 |
| May 13, 2026 Filed May 15, 2026 20:20 UTC |
Briansky SharonSVP, GC and Secretary
|
GrantCommon Stock | 2,611 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226841 · ownership.xml · nonDerivative · entry 2 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 93,695 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 |
Briansky SharonSVP, GC and Secretary
|
GrantCommon Stock | 15,852 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226841 · ownership.xml · nonDerivative · entry 1 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 91,084 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 |
| May 13, 2026 Filed May 15, 2026 20:20 UTC |
Coleman TroySVP, General Manager, Products
|
GrantCommon Stock | 18,116 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226839 · ownership.xml · nonDerivative · entry 1 Coleman Troy · CIK 0002090081 · SVP, General Manager, Products 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 91,646 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 |
| May 13, 2026 Filed May 15, 2026 20:20 UTC |
Doogue MichaelDirector · President and CEO
|
GrantCommon Stock | 83,700 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226838 · ownership.xml · nonDerivative · entry 2 Doogue Michael · CIK 0001828862 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 339,584 F2 · shares: On May 15, 2023 and May 15, 2025, the Reporting Person was granted awards 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 awards remain 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 |
Doogue MichaelDirector · President and CEO
|
GrantCommon Stock | 77,135 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226838 · ownership.xml · nonDerivative · entry 1 Doogue Michael · CIK 0001828862 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 255,884 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 |
| May 13, 2026 Filed May 15, 2026 20:20 UTC |
Webster Roald GrahamVP, Chief Accounting Officer
|
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 |
Webster Roald GrahamVP, Chief Accounting Officer
|
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 |
| May 13, 2026 Filed May 15, 2026 20:20 UTC |
Hagen ErinSVP, CHRO
|
GrantCommon Stock | 9,058 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-226837 · ownership.xml · nonDerivative · entry 1 Hagen Erin · CIK 0002022960 · SVP, CHRO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 39,152 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 |
| May 11, 2026 Filed May 13, 2026 20:16 UTC |
Briansky SharonSVP, GC and Secretary
|
SaleCommon Stock | 8,948 | $47.54 | $425,379.87 |
DisclosureSEC source: 0001193125-26-221670 · ownership.xml · nonDerivative · entry 1 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 75,232 F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $47.500 to $47.675. 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 11, 2026 Filed May 13, 2026 20:16 UTC |
Doogue MichaelDirector · President and CEO
|
SaleCommon Stock | 30,089 | $47.23 | $1,421,250.91 |
DisclosureSEC source: 0001193125-26-221669 · ownership.xml · nonDerivative · entry 1 Doogue Michael · CIK 0001828862 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Indirect · By the Michael C. Doogue Revocable Trust of 2015 Disclosed balance after: 252,797 F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $47.20 to $47.44. 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. F2 · balance_after: The number of shares beneficially owned reflects a change in the form of beneficial ownership from direct to indirect of 36,800 shares that were transferred from the Reporting Person's direct holdings to the Michael C. Doogue Revocable Trust of 2015 on May 20, 2025. Read SEC document |
| March 24, 2026 Filed Mar 25, 2026 20:15 UTC |
Madormo RichardSVP, Worldwide Sales
|
Disposition to issuerCommon Stock | 6,498 | $32.58 | $211,704.84 |
DisclosureSEC source: 0001193125-26-124140 · ownership.xml · nonDerivative · entry 1 Madormo Richard · CIK 0002061106 · SVP, Worldwide Sales 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,311 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| March 02, 2026 Filed Mar 3, 2026 21:15 UTC |
Briansky SharonSVP, GC and Secretary
|
SaleCommon Stock | 9,727 | $35.00 | $340,445.00 |
DisclosureSEC source: 0001193125-26-088231 · ownership.xml · nonDerivative · entry 2 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 84,180 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 4, 2025. Details regarding the Reporting Person's trading plan were reported in Part II, Item 5 of the Issuer's Quarterly Report on Form 10-Q for the period ending September 26, 2025, filed with the SEC on October 31, 2025. Read SEC document |
| March 02, 2026 Filed Mar 3, 2026 21:15 UTC |
Hagen ErinSVP, CHRO
|
SaleCommon Stock | 2,598 | $35.00 | $90,930.00 |
DisclosureSEC source: 0001193125-26-088228 · ownership.xml · nonDerivative · entry 2 Hagen Erin · CIK 0002022960 · SVP, CHRO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,094 Read SEC document |
| February 27, 2026 Filed Mar 3, 2026 21:15 UTC |
Briansky SharonSVP, GC and Secretary
|
Tax withholdingCommon Stock | 9,107 | $36.47 | $332,132.29 |
DisclosureSEC source: 0001193125-26-088231 · ownership.xml · nonDerivative · entry 1 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 93,907 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| February 27, 2026 Filed Mar 3, 2026 21:15 UTC |
D'Antilio DerekEVP, CFO & Treasurer
|
Tax withholdingCommon Stock | 9,995 | $36.47 | $364,517.65 |
DisclosureSEC source: 0001193125-26-088230 · ownership.xml · nonDerivative · entry 1 D'Antilio Derek · CIK 0001904082 · EVP, CFO & Treasurer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 216,776 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| February 27, 2026 Filed Mar 3, 2026 21:15 UTC |
Hagen ErinSVP, CHRO
|
Tax withholdingCommon Stock | 1,996 | $36.47 | $72,794.12 |
DisclosureSEC source: 0001193125-26-088228 · ownership.xml · nonDerivative · entry 1 Hagen Erin · CIK 0002022960 · SVP, CHRO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 32,692 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 21:16 UTC |
Briansky SharonSVP, GC and Secretary
|
SaleCommon Stock | 9,258 | $41.56 | $384,762.48 |
DisclosureSEC source: 0001193125-26-057087 · ownership.xml · nonDerivative · entry 2 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 103,014 F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 4, 2025. Details regarding the Reporting Person's trading plan were reported in Part II, Item 5 of the Issuer's Quarterly Report on Form 10-Q for the period ending September 26, 2025, filed with the SEC on October 31, 2025. Read SEC document |
| February 13, 2026 Filed Feb 18, 2026 21:16 UTC |
D'Antilio DerekEVP, CFO & Treasurer
|
Tax withholdingCommon Stock | 17,808 | $42.38 | $754,703.04 |
DisclosureSEC source: 0001193125-26-057086 · ownership.xml · nonDerivative · entry 1 D'Antilio Derek · CIK 0001904082 · EVP, CFO & Treasurer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 226,771 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| February 13, 2026 Filed Feb 18, 2026 21:16 UTC |
Briansky SharonSVP, GC and Secretary
|
Tax withholdingCommon Stock | 8,991 | $42.38 | $381,038.58 |
DisclosureSEC source: 0001193125-26-057087 · ownership.xml · nonDerivative · entry 1 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 112,272 F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer. Read SEC document |
| February 02, 2026 Filed Mar 4, 2026 21:16 UTC |
Kent IanSVP, Global Operations
|
GrantCommon Stock | 9,183 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-091544 · ownership.xml · nonDerivative · entry 1 Kent Ian · CIK 0002104292 · SVP, Global Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,887 F1 · date: This transaction is being filed late due to an administrative error and not any error of the reporting person. F2 · shares: Represents an award of Restricted Stock Units ("RSUs") granted on February 2, 2026. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in two annual installments, with 60% of the award vesting on February 13, 2027 and the remaining 40% vesting on February 13, 2028. Read SEC document |
| December 10, 2025 Filed Dec 12, 2025 21:16 UTC |
Briansky SharonSVP, GC and Secretary
|
SaleCommon Stock | 27,873 | $30.00 | $836,190.00 |
DisclosureSEC source: 0001193125-25-317584 · ownership.xml · nonDerivative · entry 1 Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 121,263 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 4, 2025. Details regarding the Reporting Person's trading plan were reported in Part II, Item 5 of the Issuer's Quarterly Report on Form 10-Q for the period ending September 26, 2025, filed with the SEC on October 31, 2025. 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.