Askarpour Shahram

SEC source: 0001104659-26-104820 · tm2624716-2_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 493,876

F1 · shares: These shares of common stock were withheld by the issuer to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units.

SEC source: 0001104659-26-083936 · tm2620592-1_4seq1.xml · derivative · entry 1

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,966

Underlying: Common Stock · 68,966 shares

Expires 2036-07-14

F1 · derivative.exercise_price: Each Performance Stock Unit represents a contingent right to receive one share of issuer common stock. The Performance Stock Units vest in equal tranches on each of the first, second and third anniversary of the date of grant, subject to the issuer's common stock achieving specified prices per share.

F1 · derivative.exercise_date: Each Performance Stock Unit represents a contingent right to receive one share of issuer common stock. The Performance Stock Units vest in equal tranches on each of the first, second and third anniversary of the date of grant, subject to the issuer's common stock achieving specified prices per share.

SEC source: 0001104659-26-064647 · tm2615231-2_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 495,035

F1 · shares: These shares of common stock were withheld by the issuer to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units.

SEC source: 0001104659-26-019296 · tm267205-1_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 495,941

F1 · shares: These shares of common stock were withheld by the issuer to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units.

SEC source: 0001104659-26-018022 · tm266945-2_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 498,817

F1 · shares: These shares of common stock were withheld by the issuer to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units.

SEC source: 0001104659-26-017675 · tm266877-2_4seq1.xml · derivative · entry 3

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,171

Underlying: Common Stock · 20,171 shares

Expires 2036-02-17

F3 · derivative.exercise_price: Each Performance Stock Unit represents a contingent right to receive one share of issuer common stock. The Performance Stock Units vest in equal tranches on each of the first, second and third anniversary of the date of grant, subject to the issuer's common stock achieving specified prices per share.

F3 · derivative.exercise_date: Each Performance Stock Unit represents a contingent right to receive one share of issuer common stock. The Performance Stock Units vest in equal tranches on each of the first, second and third anniversary of the date of grant, subject to the issuer's common stock achieving specified prices per share.

SEC source: 0001104659-26-017675 · tm266877-2_4seq1.xml · derivative · entry 2

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,364

Underlying: Common Stock · 34,364 shares

Expires 2036-02-17

F2 · derivative.exercise_date: The non-qualified stock option was granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. The option is scheduled to vest in accordance with the following schedule: 1/4th on the first anniversary of the grant date and 1/12th on each quarterly anniversary of the grant date thereafter, subject to continued employment by the reporting person.

SEC source: 0001104659-26-017675 · tm266877-2_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 502,442

F1 · shares: The RSUs were granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. Each RSU represents the right to receive one share of Common Stock, subject to adjustment as provided in the Award Agreement. The RSUs are scheduled to vest in accordance with the following schedule: 1/3rd on the first anniversary of the grant date and 1/8th on each quarterly anniversary of the grant date thereafter, subject to continued employment by the reporting person.

SEC source: 0001104659-26-053609 · tm2613242-1_4aseq1.xml · derivative · entry 3

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,455

Underlying: Common Stock · 45,455 shares

Expires 2036-02-17

F3 · derivative.exercise_price: The Reporting Person is amending the Form 4 filed on February 19, 2026 to correct the number of performance stock units granted to the Reporting person, which were originally understated due to a clerical error.

F3 · shares: The Reporting Person is amending the Form 4 filed on February 19, 2026 to correct the number of performance stock units granted to the Reporting person, which were originally understated due to a clerical error.

F4 · derivative.exercise_date: Each Performance Stock Unit represents a contingent right to receive one share of issuer common stock. The Performance Stock Units vest upon the issuer's common stock achieving specified prices per share.

SEC source: 0001104659-26-053609 · tm2613242-1_4aseq1.xml · derivative · entry 2

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,364

Underlying: Common Stock · 34,364 shares

Expires 2036-02-17

F2 · derivative.exercise_date: The non-qualified stock option was granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. The option is scheduled to vest in accordance with the following schedule: 1/4th on the first anniversary of the grant date and 1/12th on each quarterly anniversary of the grant date thereafter, subject to continued employment by the reporting person.

SEC source: 0001104659-26-053609 · tm2613242-1_4aseq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 502,442

F1 · shares: The RSUs were granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. Each RSU represents the right to receive one share of Common Stock, subject to adjustment as provided in the Award Agreement. The RSUs are scheduled to vest in accordance with the following schedule: 1/4th on the first anniversary of the grant date and 1/12th on each quarterly anniversary of the grant date thereafter, subject to continued employment by the reporting person.

SEC source: 0001104659-26-003460 · tm263126-2_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 482,271

F1 · shares: These shares of common stock were withheld by the issuer to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units.

SEC source: 0001104659-25-115526 · tm2532097-1_4seq1.xml · derivative · entry 2

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 201,000 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: Performance stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: On November 20, 2024, the reporting person was granted 201,000 Performance Stock Units, which vest, subject to the terms of the Innovative Solutions and Support, Inc. 2019 Stock-Based Incentive Compensation Plan, in three equal tranches upon the issuer's common stock achieving specified prices per share.

F2 · derivative.expiration_date: On November 20, 2024, the reporting person was granted 201,000 Performance Stock Units, which vest, subject to the terms of the Innovative Solutions and Support, Inc. 2019 Stock-Based Incentive Compensation Plan, in three equal tranches upon the issuer's common stock achieving specified prices per share.

SEC source: 0001104659-25-115526 · tm2532097-1_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 572,317

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: Performance stock units convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-117861 · tm2532397-1_4aseq1.xml · derivative · entry 3

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 201,000 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: Performance stock units convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: On November 20, 2024, the reporting person was granted 201,000 Performance Stock Units, which vested on the one year anniversary of grant and otherwise in accordance with the Performance Stock Unit award.

F3 · derivative.expiration_date: On November 20, 2024, the reporting person was granted 201,000 Performance Stock Units, which vested on the one year anniversary of grant and otherwise in accordance with the Performance Stock Unit award.

SEC source: 0001104659-25-117861 · tm2532397-1_4aseq1.xml · nonDerivative · entry 2

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 484,399

F2 · shares: These shares of common stock were withheld by the issuer to satisfy the reporting person's tax obligations in connection with the vesting of performance stock units.

SEC source: 0001104659-25-117861 · tm2532397-1_4aseq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 572,317

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: Performance stock units convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-031313 · tm2511353-1_4seq1.xml · derivative · entry 2

Askarpour Shahram · CIK 0001546928 · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,062

Underlying: Common Stock · 72,062 shares

Expires 2035-02-18

F2 · derivative.exercise_date: The non-qualified stock option was granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. The number of shares of Common Stock underlying the option is based on the methodology determined by the Company's compensation committee prior to the date of grant on February 18, 2025. The grant was confirmed by the Company's board of directors on April 1, 2025. The option is scheduled to vest in accordance with the following schedule: 1/4th on the first anniversary of the grant date and 1/12th on each quarterly anniversary of the grant date thereafter, subject to continued employment by the reporting person. The option becomes exercisable, if at all, if the price of the Company's common stock on the Nasdaq Stock Market is equal to or greater than $9.8785 for 20 consecutive trading days during the vesting period of the option.

SEC source: 0001104659-25-031313 · tm2511353-1_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 370,317

F1 · shares: The RSUs were granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. The number of RSUs is based on the methodology determined by the Company's compensation committee prior to the date of grant on February 18, 2025. The grant was confirmed by the Company's board of directors on April 1, 2025. Each RSU represents the right to receive one share of Common Stock, subject to adjustment as provided in the Award Agreement. The RSUs are scheduled to vest in accordance with the following schedule: 1/4th on the first anniversary of the grant date and 1/12th on each quarterly anniversary of the grant date thereafter, subject to continued employment by the reporting person.

SEC source: 0001104659-24-122127 · tm2429324-1_4seq1.xml · derivative · entry 1

Askarpour Shahram · CIK 0001546928 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 201,000

Underlying: Common Stock · 201,000 shares

Expires 2028-11-20

F1 · derivative.exercise_price: Each Performance Stock Unit represents a contingent right to receive one share of issuer common stock. The Performance Stock Units vest in three equal tranches upon the issuer's common stock achieving specified prices per share.

F1 · derivative.exercise_date: Each Performance Stock Unit represents a contingent right to receive one share of issuer common stock. The Performance Stock Units vest in three equal tranches upon the issuer's common stock achieving specified prices per share.

SEC source: 0001104659-24-027738 · tm247329-1_4seq1.xml · derivative · entry 3

Askarpour Shahram · CIK 0001546928 · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,014

Underlying: Common Stock · 72,014 shares

Expires 2034-02-22

F4 · derivative.exercise_date: The non-qualified stock option was granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. The option is scheduled to vest in accordance with the following schedule: 25% on each of the first four anniversaries of the grant date, subject to continued employment by the reporting person.

SEC source: 0001104659-24-027738 · tm247329-1_4seq1.xml · derivative · entry 2

Askarpour Shahram · CIK 0001546928 · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires 2034-02-22

F3 · derivative.exercise_date: The non-qualified stock option was granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. The option vested immediately on the date of grant.

SEC source: 0001104659-24-027738 · tm247329-1_4seq1.xml · derivative · entry 1

Askarpour Shahram · CIK 0001546928 · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,024

Underlying: Common Stock · 40,024 shares

Expires not disclosed

F1 · derivative.exercise_price: The RSUs were granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan. Each RSU represents the right to receive one share of Common Stock, subject to adjustment as provided in the Award Agreement.

F2 · derivative.exercise_date: The RSUs are scheduled to vest in accordance with the following schedule: 25% on each of the first four anniversaries of the grant date, subject to continued employment by the reporting person.

F2 · derivative.expiration_date: The RSUs are scheduled to vest in accordance with the following schedule: 25% on each of the first four anniversaries of the grant date, subject to continued employment by the reporting person.

SEC source: 0001104659-23-003924 · tm232195-6_4seq1.xml · derivative · entry 2

Askarpour Shahram · CIK 0001546928 · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 shares

Expires 2024-01-11

F2 · security: Grant of stock options pursuant to the 2019 Stock-Based Incentive Compensation Plan. 100,000 of the options vested immediately on the grant date; the remaining 100,000 options vest on a quarterly basis, and will be fully vested one year from the grant date.

F2 · derivative.exercise_date: Grant of stock options pursuant to the 2019 Stock-Based Incentive Compensation Plan. 100,000 of the options vested immediately on the grant date; the remaining 100,000 options vest on a quarterly basis, and will be fully vested one year from the grant date.

SEC source: 0001104659-23-003924 · tm232195-6_4seq1.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 292,458

F1 · security: Grant of restricted stock units under the Innovative Solutions & Support, Inc. 2019 Stock-Based Incentive Compensation Plan, each of which represents a contingent right to receive one share of Innovative Solutions & Support, Inc. common stock. The restricted stock units were granted effective January 11, 2023. 25,000 of the restricted stock units vested immediately on the grant date; the remaining 75,000 vest on a quarterly basis, and will be fully vested three years from the grant date.

SEC source: 0001104659-20-105233 · a4.xml · derivative · entry 6

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 250,000 shares

Expires 2025-01-29

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: 0001104659-20-105233 · a4.xml · derivative · entry 5

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,000

Underlying: Common Stock · 250,000 shares

Expires 2022-02-21

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: 0001104659-20-105233 · a4.xml · nonDerivative · entry 4

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192,458

F1 · shares: These shares were withheld by the issuer to cover the option exercise price and tax withholding obligations related to the net exercise of the above options.

SEC source: 0001104659-20-105233 · a4.xml · nonDerivative · entry 3

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 364,976

F1 · shares: These shares were withheld by the issuer to cover the option exercise price and tax withholding obligations related to the net exercise of the above options.

SEC source: 0001104659-20-105233 · a4.xml · nonDerivative · entry 2

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 506,500

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: 0001104659-20-105233 · a4.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 256,500

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: 0001104659-20-094053 · a4.xml · derivative · entry 6

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500,000

Underlying: Common Stock · 2,160 shares

Expires 2021-08-15

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.

F2 · derivative.exercise_date: As of January 22, 2020, and prior to this transaction, the exercised options were fully vested.

SEC source: 0001104659-20-094053 · a4.xml · nonDerivative · entry 4

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,500

SEC source: 0001104659-20-094053 · a4.xml · nonDerivative · entry 3

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,660

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 · shares: Exercise of Dr. Askarpour's stock options that would otherwise expire August 15, 2021, of which shares were sold to pay the exercise price, to cover withholding taxes, and to pay broker fees and commissions, pursuant to a broker-assisted cashless exercise and sale

SEC source: 0001104659-20-094053 · a4.xml · derivative · entry 5

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 502,160

Underlying: Common Stock · 12,840 shares

Expires 2021-08-15

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.

F2 · derivative.exercise_date: As of January 22, 2020, and prior to this transaction, the exercised options were fully vested.

SEC source: 0001104659-20-094053 · a4.xml · nonDerivative · entry 2

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,500

SEC source: 0001104659-20-094053 · a4.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,340

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 · shares: Exercise of Dr. Askarpour's stock options that would otherwise expire August 15, 2021, of which shares were sold to pay the exercise price, to cover withholding taxes, and to pay broker fees and commissions, pursuant to a broker-assisted cashless exercise and sale

SEC source: 0001104659-20-022087 · a4.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Wife

Disclosed balance after: 0

F1 · ownership.nature: Dr. Askarpour may have been deemed to beneficially own these shares indirectly, but expressly disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001179110-19-001936 · edgar.xml · nonDerivative · entry 2

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,500

SEC source: 0001179110-19-001936 · edgar.xml · nonDerivative · entry 1

Askarpour Shahram · CIK 0001546928 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,500