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Nasdaq · USD

ALGM

ALLEGRO MICROSYSTEMS, INC.

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Tapewire entity
3746
SEC CIK
0000866291
Parsed reports
319

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
MonthPurchasesSales
Nov 202500
Dec 202501
Jan 202600
Feb 202601
Mar 202602
Apr 202600
May 202606
Jun 202601
Jul 202600
Aug 202602
Sep 202600
Oct 202600

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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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
June 13, 2024 Filed Jun 14, 2024 20:18 UTC
Nargolwala Vineet ADirector · President and CEO
Tax withholdingCommon Stock 36,066 $29.12 $1,050,241.92
Disclosure

SEC source: 0000950170-24-073686 · ownership.xml · nonDerivative · entry 1

Nargolwala Vineet A · CIK 0001807649 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 358,794

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
June 11, 2024 Filed Jun 13, 2024 20:18 UTC
Nargolwala Vineet ADirector · President and CEO
GrantCommon Stock 82,788 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-073029 · ownership.xml · nonDerivative · entry 1

Nargolwala Vineet A · CIK 0001807649 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 394,860

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
June 11, 2024 Filed Jun 13, 2024 20:18 UTC
Glover Max R.SVP of Worldwide Sales
GrantCommon Stock 20,697 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-073028 · ownership.xml · nonDerivative · entry 1

Glover Max R. · CIK 0001828856 · SVP of Worldwide Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 268,983

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
June 11, 2024 Filed Jun 13, 2024 20:18 UTC
D'Antilio DerekSVP, CFO & Treasurer
GrantCommon Stock 34,495 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-073027 · ownership.xml · nonDerivative · entry 1

D'Antilio Derek · CIK 0001904082 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,426

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
June 11, 2024 Filed Jun 13, 2024 20:18 UTC GrantCommon Stock 24,837 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-073026 · ownership.xml · nonDerivative · entry 1

Doogue Michael · CIK 0001828862 · SVP, CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,723

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
June 11, 2024 Filed Jun 13, 2024 20:18 UTC
Briansky SharonSVP, GC and Secretary
GrantCommon Stock 17,248 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-073025 · ownership.xml · nonDerivative · entry 1

Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,305

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
June 11, 2024 Filed Jun 13, 2024 20:18 UTC
Narayan SumanSVP, Products
GrantCommon Stock 17,248 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-073024 · ownership.xml · nonDerivative · entry 1

Narayan Suman · CIK 0001944292 · SVP, Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,798

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
June 11, 2024 Filed Jun 13, 2024 20:18 UTC
Hagen ErinSVP, CHRO
GrantCommon Stock 9,659 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-073023 · ownership.xml · nonDerivative · entry 1

Hagen Erin · CIK 0002022960 · SVP, CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,661

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
June 11, 2024 Filed Jun 13, 2024 20:18 UTC GrantCommon Stock 5,520 $0.00 $0.00
Disclosure

SEC 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
June 03, 2024 Filed Jun 4, 2024 20:15 UTC
Narayan SumanSVP, Products
Tax withholdingCommon Stock 1,570 $29.27 $45,953.90
Disclosure

SEC source: 0000950170-24-068679 · ownership.xml · nonDerivative · entry 1

Narayan Suman · CIK 0001944292 · SVP, Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,550

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
June 03, 2024 Filed Jun 4, 2024 20:15 UTC
Briansky SharonSVP, GC and Secretary
Tax withholdingCommon Stock 1,929 $29.27 $56,461.83
Disclosure

SEC source: 0000950170-24-068677 · ownership.xml · nonDerivative · entry 1

Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,057

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 30, 2024 Filed May 31, 2024 20:18 UTC SaleCommon Stock 8,500 $30.00 $255,000.00
Disclosure

SEC source: 0000950170-24-067331 · ownership.xml · nonDerivative · entry 1

Lury Richard R. · CIK 0001828865 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,001

Read SEC document
May 22, 2024 Filed May 23, 2024 20:30 UTC OtherCommon Stock 29,384 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-063983 · ownership.xml · nonDerivative · entry 2

Doogue Michael · CIK 0001828862 · SVP, CTO

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Michael C. Doogue Revocable Trust of 2015

Disclosed balance after: 231,086

F1 · kind: Transfer of shares from the Reporting Person's direct holdings to the Michael C. Doogue Revocable Trust of 2015, resulting in a change in the form of the Reporting Person's beneficial ownership of the shares from direct to indirect.

Read SEC document
May 22, 2024 Filed May 23, 2024 20:30 UTC OtherCommon Stock 29,384 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-063983 · ownership.xml · nonDerivative · entry 1

Doogue Michael · CIK 0001828862 · SVP, CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,886

F1 · kind: Transfer of shares from the Reporting Person's direct holdings to the Michael C. Doogue Revocable Trust of 2015, resulting in a change in the form of the Reporting Person's beneficial ownership of the shares from direct to indirect.

Read SEC document
May 16, 2024 Filed May 17, 2024 22:06 UTC Tax withholdingCommon Stock 19,110 $29.75 $568,522.50
Disclosure

SEC source: 0000950170-24-061988 · ownership.xml · nonDerivative · entry 2

Doogue Michael · CIK 0001828862 · SVP, CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,270

F2 · shares: Represents shares withheld to cover taxes due upon the vesting of PSUs and restricted stock units that were previously granted by the Issuer.

Read SEC document
May 16, 2024 Filed May 17, 2024 22:05 UTC
Briansky SharonSVP, GC and Secretary
Tax withholdingCommon Stock 7,773 $29.75 $231,246.75
Disclosure

SEC source: 0000950170-24-061987 · ownership.xml · nonDerivative · entry 2

Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,986

F2 · shares: Represents shares withheld to cover taxes due upon the vesting of PSUs and restricted stock units that were previously granted by the Issuer.

Read SEC document
May 16, 2024 Filed May 17, 2024 21:58 UTC Tax withholdingCommon Stock 3,113 $29.75 $92,611.75
Disclosure

SEC 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 16, 2024 Filed May 17, 2024 21:58 UTC
Narayan SumanSVP, Products
Tax withholdingCommon Stock 10,816 $29.75 $321,776.00
Disclosure

SEC source: 0000950170-24-061972 · ownership.xml · nonDerivative · entry 2

Narayan Suman · CIK 0001944292 · SVP, Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,120

F2 · shares: Represents shares withheld to cover taxes due upon the vesting of PSUs and restricted stock units that were previously granted by the Issuer.

Read SEC document
May 16, 2024 Filed May 17, 2024 21:57 UTC
Nargolwala Vineet ADirector · President and CEO
Tax withholdingCommon Stock 24,160 $29.75 $718,760.00
Disclosure

SEC source: 0000950170-24-061971 · ownership.xml · nonDerivative · entry 2

Nargolwala Vineet A · CIK 0001807649 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 312,072

F2 · shares: Represents shares withheld to cover taxes due upon the vesting of PSUs and restricted stock units that were previously granted by the Issuer.

Read SEC document
May 16, 2024 Filed May 17, 2024 21:56 UTC
D'Antilio DerekSVP, CFO & Treasurer
Tax withholdingCommon Stock 12,494 $29.75 $371,696.50
Disclosure

SEC source: 0000950170-24-061968 · ownership.xml · nonDerivative · entry 2

D'Antilio Derek · CIK 0001904082 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,931

F2 · shares: Represents shares withheld to cover taxes due upon the vesting of PSUs and restricted stock units that were previously granted by the Issuer.

Read SEC document
May 16, 2024 Filed May 17, 2024 21:55 UTC
Glover Max R.SVP of Worldwide Sales
Tax withholdingCommon Stock 26,540 $29.75 $789,565.00
Disclosure

SEC source: 0000950170-24-061966 · ownership.xml · nonDerivative · entry 2

Glover Max R. · CIK 0001828856 · SVP of Worldwide Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 248,286

F2 · shares: Represents shares withheld to cover taxes due upon the vesting of PSUs and restricted stock units that were previously granted by the Issuer.

Read SEC document
May 15, 2024 Filed May 17, 2024 22:06 UTC GrantCommon Stock 24,626 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-061988 · ownership.xml · nonDerivative · entry 1

Doogue Michael · CIK 0001828862 · SVP, CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,380

F1 · shares: On May 7, 2021, May 16, 2022 and May 15, 2023, the Reporting Person was granted awards of performance-vesting restricted stock units ("PSUs"), which vest 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 awards remain subject to the time-based vesting conditions, and a portion of the awards 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, 2024 Filed May 17, 2024 22:05 UTC
Briansky SharonSVP, GC and Secretary
GrantCommon Stock 8,034 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-061987 · ownership.xml · nonDerivative · entry 1

Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,759

F1 · shares: On May 16, 2022 and May 15, 2023, the Reporting Person was granted awards of performance-vesting restricted stock units ("PSUs"), which vest 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 awards remain subject to the time-based vesting conditions, and a portion of the awards 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, 2024 Filed May 17, 2024 21:58 UTC GrantCommon Stock 5,017 $0.00 $0.00
Disclosure

SEC 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 GrantCommon Stock 787 $0.00 $0.00
Disclosure

SEC 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, 2024 Filed May 17, 2024 21:58 UTC
Narayan SumanSVP, Products
GrantCommon Stock 11,502 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-061972 · ownership.xml · nonDerivative · entry 1

Narayan Suman · CIK 0001944292 · SVP, Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,936

F1 · shares: On May 7, 2021, May 16, 2022, August 1, 2022 and May 15, 2023, the Reporting Person was granted awards of performance-vesting restricted stock units ("PSUs"), which vest 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 awards remain subject to the time-based vesting conditions, and a portion of the awards 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, 2024 Filed May 17, 2024 21:57 UTC
Nargolwala Vineet ADirector · President and CEO
GrantCommon Stock 34,071 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-061971 · ownership.xml · nonDerivative · entry 1

Nargolwala Vineet A · CIK 0001807649 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 336,232

F1 · shares: On August 1, 2022 and May 15, 2023, the Reporting Person was granted awards of performance-vesting restricted stock units ("PSUs"), which vest 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 awards remain subject to the time-based vesting conditions, and a portion of the awards 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, 2024 Filed May 17, 2024 21:56 UTC
D'Antilio DerekSVP, CFO & Treasurer
GrantCommon Stock 13,251 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-061968 · ownership.xml · nonDerivative · entry 1

D'Antilio Derek · CIK 0001904082 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,425

F1 · shares: On May 16, 2022 and May 15, 2023, the Reporting Person was granted awards of performance-vesting restricted stock units ("PSUs"), which vest 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 awards remain subject to the time-based vesting conditions, and a portion of the awards 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, 2024 Filed May 17, 2024 21:55 UTC
Glover Max R.SVP of Worldwide Sales
GrantCommon Stock 30,201 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-061966 · ownership.xml · nonDerivative · entry 1

Glover Max R. · CIK 0001828856 · SVP of Worldwide Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 274,826

F1 · shares: On May 7, 2021, May 16, 2022 and May 15, 2023, the Reporting Person was granted awards of performance-vesting restricted stock units ("PSUs"), which vest 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 awards remain subject to the time-based vesting conditions, and a portion of the awards 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 13, 2024 Filed May 15, 2024 20:30 UTC
Narayan SumanSVP, Products
GrantCommon Stock 36,671 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-060531 · ownership.xml · nonDerivative · entry 1

Narayan Suman · CIK 0001944292 · SVP, Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,434

F1 · shares: Represents an award of Restricted Stock Units ("RSUs") granted on May 13, 2024. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in full on May 16, 2027.

Read SEC document
May 13, 2024 Filed May 15, 2024 20:24 UTC
Hagen ErinSVP, CHRO
GrantCommon Stock 11,002 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-060511 · ownership.xml · nonDerivative · entry 1

Hagen Erin · CIK 0002022960 · SVP, CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,002

F1 · shares: Represents an award of Restricted Stock Units ("RSUs") granted on May 13, 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
April 03, 2024 Filed Apr 3, 2024 20:52 UTC GrantCommon Stock 2,171 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-041211 · ownership.xml · nonDerivative · entry 1

Raubacher Jennie · CIK 0002016237 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,171

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
March 08, 2024 Filed Mar 11, 2024 20:16 UTC
Glover Max R.SVP of Worldwide Sales
SaleCommon Stock 15,000 $31.77 $476,485.50
Disclosure

SEC source: 0000950170-24-029286 · ownership.xml · nonDerivative · entry 1

Glover Max R. · CIK 0001828856 · SVP of Worldwide Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 244,625

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 December 8, 2023. 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 December 29, 2023, filed with the SEC on February 6, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $31.50 to $31.99. 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.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 8, 2023. 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 December 29, 2023, filed with the SEC on February 6, 2024.

Read SEC document
February 14, 2024 Filed Feb 15, 2024 21:41 UTC GrantCommon Stock 3,326 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-015957 · ownership.xml · nonDerivative · entry 1

SCHORR PAUL IV · CIK 0001195849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,326

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 Issuer's next annual meeting of stockholders following the grant date.

Read SEC document
February 13, 2024 Filed Feb 15, 2024 21:38 UTC
D'Antilio DerekSVP, CFO & Treasurer
Tax withholdingCommon Stock 10,725 $30.34 $325,396.50
Disclosure

SEC source: 0000950170-24-015953 · ownership.xml · nonDerivative · entry 1

D'Antilio Derek · CIK 0001904082 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,174

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, 2024 Filed Feb 15, 2024 21:37 UTC
Briansky SharonSVP, GC and Secretary
Tax withholdingCommon Stock 5,469 $30.34 $165,929.46
Disclosure

SEC source: 0000950170-24-015951 · ownership.xml · nonDerivative · entry 1

Briansky Sharon · CIK 0001897651 · SVP, GC and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,725

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
November 21, 2023 Filed Nov 21, 2023 21:47 UTC OtherCommon Stock 70,287 $0.00 $0.00
Disclosure

SEC source: 0000950170-23-065553 · ownership.xml · nonDerivative · entry 3

Doogue Michael · CIK 0001828862 · SVP, CTO

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Michael C. Doogue Revocable Trust of 2015

Disclosed balance after: 201,702

F2 · kind: Transfer of shares from the Reporting Person's direct holdings to the Michael C. Doogue Revocable Trust of 2015, resulting in a change in the form of the Reporting Person's beneficial ownership of the shares from direct to indirect.

Read SEC document
November 21, 2023 Filed Nov 21, 2023 21:47 UTC OtherCommon Stock 70,287 $0.00 $0.00
Disclosure

SEC source: 0000950170-23-065553 · ownership.xml · nonDerivative · entry 2

Doogue Michael · CIK 0001828862 · SVP, CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,754

F2 · kind: Transfer of shares from the Reporting Person's direct holdings to the Michael C. Doogue Revocable Trust of 2015, resulting in a change in the form of the Reporting Person's beneficial ownership of the shares from direct to indirect.

Read SEC document
November 17, 2023 Filed Nov 20, 2023 13:23 UTC
Nargolwala Vineet ADirector · President and CEO
PurchaseCommon Stock 1,000 $27.84 $27,840.00
Disclosure

SEC source: 0000950170-23-064985 · ownership.xml · nonDerivative · entry 1

Nargolwala Vineet A · CIK 0001807649 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 302,161

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November 17, 2023 Filed Nov 21, 2023 21:47 UTC Tax withholdingCommon Stock 45,606 $28.04 $1,278,792.24
Disclosure

SEC source: 0000950170-23-065553 · ownership.xml · nonDerivative · entry 1

Doogue Michael · CIK 0001828862 · SVP, CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,041

F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer.

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November 17, 2023 Filed Nov 21, 2023 21:30 UTC
Glover Max R.SVP of Worldwide Sales
Tax withholdingCommon Stock 78,410 $28.04 $2,198,616.40
Disclosure

SEC source: 0000950170-23-065519 · ownership.xml · nonDerivative · entry 1

Glover Max R. · CIK 0001828856 · SVP of Worldwide Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 259,625

F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer.

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November 17, 2023 Filed Nov 21, 2023 21:30 UTC Tax withholdingCommon Stock 15,284 $28.04 $428,563.36
Disclosure

SEC source: 0000950170-23-065518 · ownership.xml · nonDerivative · entry 1

Valente Joanne · CIK 0001929325 · SVP, CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,718

F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer.

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November 14, 2023 Filed Nov 15, 2023 21:19 UTC PurchaseCommon Stock 350 $27.37 $9,579.50
Disclosure

SEC source: 0000950170-23-064191 · ownership.xml · nonDerivative · entry 1

Lynch Susan D · CIK 0001784973 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,711

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October 18, 2023 Filed Oct 20, 2023 20:23 UTC
PUMA MARY GDirector
GrantCommon Stock 4,678 $0.00 $0.00
Disclosure

SEC source: 0000950170-23-054387 · ownership.xml · nonDerivative · entry 1

PUMA MARY G · CIK 0001158015 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,678

F1 · shares: Represents an award of Restricted Stock Unites ("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.

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September 15, 2023 Filed Sep 18, 2023 20:30 UTC
D'Antilio DerekSVP, CFO & Treasurer
PurchaseCommon Stock 1,488 $33.63 $50,041.44
Disclosure

SEC source: 0000950170-23-048592 · ownership.xml · nonDerivative · entry 1

D'Antilio Derek · CIK 0001904082 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,899

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September 01, 2023 Filed Sep 5, 2023 20:16 UTC
Narayan SumanSVP, Products
Tax withholdingCommon Stock 714 $38.39 $27,410.46
Disclosure

SEC source: 0001944292-23-000007 · wk-form4_1693944965.xml · nonDerivative · entry 1

Narayan Suman · CIK 0001944292 · SVP, Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,763

F1 · shares: Represents shares withheld to cover taxes due upon the vesting of restricted stock units that were previously granted by the Issuer.

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August 23, 2023 Filed Aug 24, 2023 20:19 UTC SaleCommon Stock 17,000 $38.73 $658,376.00
Disclosure

SEC source: 0001195846-23-000004 · wk-form4_1692908357.xml · nonDerivative · entry 1

MARTIN JOSEPH R · CIK 0001195846 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,374

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $38.54 to $39.07. 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.

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August 16, 2023 Filed Aug 17, 2023 20:58 UTC
Nargolwala Vineet ADirector · President and CEO
PurchaseCommon Stock 5,000 $38.67 $193,349.50
Disclosure

SEC source: 0001807649-23-000010 · wk-form4_1692305889.xml · nonDerivative · entry 1

Nargolwala Vineet A · CIK 0001807649 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 301,161

F1 · price: The purchase price reported in Column 4 is a weighted average price. The shares were purchased at multiple prices ranging from $38.65 to $38.67. The Reporting Person undertakes to provide to Allegro MicroSystems, Inc. ("ALGM"), any security holder of ALGM, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

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August 03, 2023 Filed Aug 4, 2023 20:22 UTC GrantCommon Stock 3,838 $0.00 $0.00
Disclosure

SEC source: 0001784973-23-000004 · wk-form4_1691180566.xml · nonDerivative · entry 1

Lynch Susan D · CIK 0001784973 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,361

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.

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August 03, 2023 Filed Aug 4, 2023 20:19 UTC GrantCommon Stock 3,838 $0.00 $0.00
Disclosure

SEC source: 0001195846-23-000002 · wk-form4_1691180347.xml · nonDerivative · entry 1

MARTIN JOSEPH R · CIK 0001195846 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,374

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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.