UNF

SEC source: 0000950170-24-130129 · ownership.xml · nonDerivative · entry 6

Sintros Steven S · CIK 0001453910 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,232

F5 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

SEC source: 0000950170-24-130129 · ownership.xml · nonDerivative · entry 5

Sintros Steven S · CIK 0001453910 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,719

F6 · shares: Represents restricted stock units that were earned based on the achievement of certain performance criteria and which vested.

SEC source: 0000950170-24-130129 · ownership.xml · nonDerivative · entry 4

Sintros Steven S · CIK 0001453910 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,298

F5 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

SEC source: 0000950170-24-130129 · ownership.xml · nonDerivative · entry 3

Sintros Steven S · CIK 0001453910 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,571

F1 · shares: Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024.

F4 · price: The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $194.31 to $194.50, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

SEC source: 0000950170-24-130129 · ownership.xml · nonDerivative · entry 2

Sintros Steven S · CIK 0001453910 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,685

F1 · shares: Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024.

F3 · price: The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $193.10 to $194.00, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

SEC source: 0000950170-24-130129 · ownership.xml · nonDerivative · entry 1

Sintros Steven S · CIK 0001453910 · Director · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,007

F1 · shares: Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024.

F2 · price: The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $192.06 to $192.95, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

SEC source: 0000950170-24-129939 · ownership.xml · derivative · entry 8

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,459

Underlying: Common Stock ($0.10 par value) · 2,459 shares

Expires 2034-11-19

F5 · security: This stock appreciation right, which was granted under the 2023 Plan, becomes vested and exercisable in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027. This stock appreciation right is required to be settled in stock at the time of exercise.

F5 · derivative.exercise_date: This stock appreciation right, which was granted under the 2023 Plan, becomes vested and exercisable in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027. This stock appreciation right is required to be settled in stock at the time of exercise.

SEC source: 0000950170-24-129939 · ownership.xml · derivative · entry 7

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock ($0.10 par value) · 2,667 shares

Expires 2026-10-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-129939 · ownership.xml · nonDerivative · entry 6

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,754

F3 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F4 · balance_after: Consists of 234 restricted stock units that vest in one remaining equal annual installment on October 31, 2025, 598 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 1,064 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,643 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028, 1,686 restricted stock units that vest in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027 and 2,529 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-129939 · ownership.xml · nonDerivative · entry 5

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,082

F2 · shares: Represents restricted stock units that were earned based on the achievement of certain performance criteria and which vested.

SEC source: 0000950170-24-129939 · ownership.xml · nonDerivative · entry 4

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,311

SEC source: 0000950170-24-129939 · ownership.xml · nonDerivative · entry 3

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,625

F1 · shares: Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on July 15, 2024.

SEC source: 0000950170-24-129939 · ownership.xml · nonDerivative · entry 2

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,212

SEC source: 0000950170-24-129939 · ownership.xml · nonDerivative · entry 1

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,292

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-129935 · ownership.xml · nonDerivative · entry 2

Croatti Michael A · CIK 0001656304 · Executive VP of Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,560

F2 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F3 · balance_after: Consists of 234 restricted stock units that vest in one remaining annual installment on October 31, 2025, 448 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 827 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,278 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028 and 2,773 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-129935 · ownership.xml · nonDerivative · entry 1

Croatti Michael A · CIK 0001656304 · Executive VP of Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,816

F1 · shares: Represents restricted stock units that were earned based on the achievement of certain performance criteria and which vested.

SEC source: 0000950170-24-129937 · ownership.xml · derivative · entry 5

Ross William Masters · CIK 0001688445 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,797

Underlying: Common Stock ($0.10 par value) · 1,797 shares

Expires 2034-11-19

F5 · security: This stock appreciation right, which was granted under the 2023 Plan, becomes vested and exercisable in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027. This stock appreciation right is required to be settled in stock at the time of exercise.

F5 · derivative.exercise_date: This stock appreciation right, which was granted under the 2023 Plan, becomes vested and exercisable in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027. This stock appreciation right is required to be settled in stock at the time of exercise.

SEC source: 0000950170-24-129937 · ownership.xml · nonDerivative · entry 3

Ross William Masters · CIK 0001688445 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,079

F3 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F4 · balance_after: Consists of 234 restricted stock units that vest in one remaining equal annual installment on October 31, 2025, 448 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 827 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,278 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028, 1,232 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027 and 1,060 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-129937 · ownership.xml · nonDerivative · entry 2

Ross William Masters · CIK 0001688445 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,335

F2 · shares: Represents restricted stock units that were earned based on the achievement of certain performance criteria and which vested.

SEC source: 0000950170-24-129937 · ownership.xml · nonDerivative · entry 1

Ross William Masters · CIK 0001688445 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,735

F1 · shares: Represents restricted stock units granted under the UniFirst Corporation 2023 Stock Option and Incentive Plan (the "2023 Plan"). Such restricted stock units vest in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027.

SEC source: 0000950170-24-129936 · ownership.xml · derivative · entry 4

DIFILLIPPO DAVID A · CIK 0001261137 · Executive VP of Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,797

Underlying: Common Stock ($0.10 par value) · 1,797 shares

Expires 2034-11-19

F5 · security: This stock appreciation right, which was granted under the 2023 Plan, becomes vested and exercisable in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027. This stock appreciation right is required to be settled in stock at the time of exercise.

F5 · derivative.exercise_date: This stock appreciation right, which was granted under the 2023 Plan, becomes vested and exercisable in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027. This stock appreciation right is required to be settled in stock at the time of exercise.

SEC source: 0000950170-24-129936 · ownership.xml · nonDerivative · entry 3

DIFILLIPPO DAVID A · CIK 0001261137 · Executive VP of Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,156

F3 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F4 · balance_after: Consists of 234 restricted stock units that vest in one remaining annual installment on October 31, 2025, 448 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 827 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,278 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028, 1,232 restricted stock units that vest in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027 and 7,137 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-129936 · ownership.xml · nonDerivative · entry 2

DIFILLIPPO DAVID A · CIK 0001261137 · Executive VP of Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,412

F2 · shares: Represents restricted stock units that were earned based on the achievement of certain performance criteria and which vested.

SEC source: 0000950170-24-129936 · ownership.xml · nonDerivative · entry 1

DIFILLIPPO DAVID A · CIK 0001261137 · Executive VP of Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,812

F1 · shares: Represents restricted stock units granted under the UniFirst Corporation 2023 Stock Option and Incentive Plan (the "2023 Plan"). Such restricted stock units vest in three equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027.

SEC source: 0000950170-24-120795 · ownership.xml · nonDerivative · entry 1

Sintros Steven S · CIK 0001453910 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,778

F1 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F2 · balance_after: Consists of (i) 16,983 shares of Common Stock owned by the reporting person, (iii) 1,289 restricted stock units that will vest in two remaining equal annual installments on November 19, 2024 and November 19, 2025, (iv) 1,493 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, (v) 2,363 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027 and (vi) 3,650 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028.

SEC source: 0000950170-24-120789 · ownership.xml · nonDerivative · entry 1

Croatti Matthew · CIK 0001724534 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,954

F1 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F2 · balance_after: Consists of 94 restricted stock units that vest in one remaining equal annual installment on October 31, 2025, 187 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 355 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 548 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028 and 8,770 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-120792 · ownership.xml · nonDerivative · entry 1

O'Connor Shane · CIK 0001370639 · Executive VP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,528

F1 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F2 · balance_after: Consists of 234 restricted stock units that vest in one remaining annual installment on October 31, 2025, 672 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 1,182 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,825 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028 and 1,615 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-120786 · ownership.xml · nonDerivative · entry 1

Katz David Martin · CIK 0001459610 · Executive VP, Sales/Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,625

F1 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F2 · balance_after: Consists of 234 restricted stock units that vest in one remaining equal annual installment on October 31, 2025, 598 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 1,064 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,643 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028 and 2,086 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-120781 · ownership.xml · nonDerivative · entry 1

Croatti Michael A · CIK 0001656304 · Executive VP of Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,216

F1 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F2 · balance_after: Consists of 234 restricted stock units that vest in one remaining annual installment on October 31, 2025, 448 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 827 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,278 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028 and 2,429 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-120782 · ownership.xml · nonDerivative · entry 1

DIFILLIPPO DAVID A · CIK 0001261137 · Executive VP of Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,580

F1 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F2 · balance_after: Consists of 234 restricted stock units that vest in one remaining annual installment on October 31, 2025, 448 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 827 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,278 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028 and 6,793 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-120778 · ownership.xml · nonDerivative · entry 1

Ross William Masters · CIK 0001688445 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,503

F1 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F2 · balance_after: Consists of 234 restricted stock units that vest in one remaining equal annual installment on October 31, 2025, 448 restricted stock units that vest in two remaining equal annual installments on October 31, 2025 and October 31, 2026, 827 restricted stock units that vest in three remaining equal annual installments on October 31, 2025, October 31, 2026 and October 31, 2027, 1,278 restricted stock units that vest in four equal annual installments on October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028 and 716 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-118933 · ownership.xml · nonDerivative · entry 1

Sintros Steven S · CIK 0001453910 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,815

F1 · shares: Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.

F2 · balance_after: Consists of (i) 15,575 shares of Common Stock owned by the reporting person, (ii) 1,289 restricted stock units that will vest in two remaining equal annual installments on November 19, 2024 and November 19, 2025, (iii) 2,239 restricted stock units that vest in three remaining equal annual installments on October 31, 2024, October 31, 2025 and October 31, 2026, (iv) 3,150 restricted stock units that vest in four remaining equal annual installments on October 31, 2024, October 31, 2025, October 31, 2026 and October 31, 2027 and (v) 4,562 restricted stock units that vest in five equal annual installments on October 31, 2024, October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028.

SEC source: 0000950170-24-129902 · ownership.xml · derivative · entry 15

The Ronald D Croatti Trust - 1993 · CIK 0001724901 · 10% owner

Croatti Matthew · CIK 0001724534 · 10% owner

Croatti Carol · CIK 0001724908 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,003,874

Underlying: Common Stock ($0.10 par value) · 31,860 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation.

F15 · ownership.direct: Represents shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary.

SEC source: 0000950170-24-129902 · ownership.xml · nonDerivative · entry 1

The Ronald D Croatti Trust - 1993 · CIK 0001724901 · 10% owner

Croatti Matthew · CIK 0001724534 · 10% owner

Croatti Carol · CIK 0001724908 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,860

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation.

SEC source: 0000950170-24-111785 · ownership.xml · nonDerivative · entry 1

Rooney Kelly C. · CIK 0001943720 · Executive VP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,790

F1 · shares: Represents restricted stock units granted under the UniFirst Corporation 2023 Stock Option and Incentive Plan. Such restricted stock units vest in 4,531 shares on September 30, 2025 and remainder on September 30, 2026.

F2 · balance_after: Consists of 4,531 restricted stock units that vest on September 30, 2025, and 1,259 restricted stock units that vest on September 30, 2026 owned by the reporting person.

SEC source: 0000950170-24-096948 · ownership.xml · nonDerivative · entry 1

O'Connor Shane · CIK 0001370639 · Executive VP and CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,215

F1 · shares: Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on May 10, 2024.

F2 · balance_after: Consists of 194 restricted stock units that vest in one remaining annual installment on October 31, 2024, 468 restricted stock units that vest in two remaining equal annual installments on October 31, 2024 and October 31, 2025, 1,008 restricted stock units that vest in three remaining equal annual installments on October 31, 2024, October 31, 2025 and October 31, 2026, 1,576 restricted stock units that vest in four remaining equal annual installments on October 31, 2024, October 31, 2025, October 31, 2026 and October 31, 2027, 2,281 restricted stock units that vest in five equal annual installments on October 31, 2024, October 31, 2025, October 31, 2026, October 31, 2027 and October 31, 2028 and 688 shares of Common Stock owned by the reporting person.

SEC source: 0000950170-24-090153 · ownership.xml · derivative · entry 17

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock ($0.10 par value) · 1,000 shares

Expires 2026-01-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-090153 · ownership.xml · derivative · entry 16

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock ($0.10 par value) · 1,000 shares

Expires 2028-10-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-090153 · ownership.xml · derivative · entry 15

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock ($0.10 par value) · 858 shares

Expires 2030-11-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-090153 · ownership.xml · derivative · entry 14

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock ($0.10 par value) · 957 shares

Expires 2031-10-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 13

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,744

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 12

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,984

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 11

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,105

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 10

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,984

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 9

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,984

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 8

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,132

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 7

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,984

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 6

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,984

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 5

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,003

SEC source: 0000950170-24-090153 · ownership.xml · nonDerivative · entry 4

Iandoli Michael · CIK 0001385748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,842

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.