ISSC director receives 5,618-share RSU grant

Dean Garry C. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Dean Garry C. reported acquisition or exercise transactions in this Form 4 filing.

INNOVATIVE SOLUTIONS & SUPPORT INC director Garry C. Dean received a compensation-related equity grant. On the reported date, he was awarded 5,618 Restricted Stock Units (RSUs) at no cash cost under the company’s 2019 Stock-Based Incentive Compensation Plan.

Each RSU represents one share of common stock and is scheduled to vest on the first anniversary of the grant date, subject to his continued service. Following this award, Dean directly holds 29,408 shares, highlighting ongoing alignment of his compensation with shareholder interests through stock-based incentives.

Insider Trade Summary

Grant/Award: 5,618 shares

Grant/Award 1 txn

Insider Dean Garry C.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	5,618	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 29,408 shares (Direct)

Footnotes (1)

1. F1. 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. The RSUs are scheduled to vest on the first anniversary of the grant date, subject to continued service by the reporting person.

Key Figures

RSUs granted: 5,618 units Shares after transaction: 29,408 shares Grant price: $0.0000 per unit +2 more

5 metrics

RSUs granted 5,618 units Restricted Stock Units awarded to director on grant date

Shares after transaction 29,408 shares Total direct holdings following RSU grant

Grant price $0.0000 per unit Reported transaction price per RSU (compensation grant)

Transaction code Code A Grant, award, or other acquisition of RSUs

Transaction direction acquire Non-derivative acquisition via RSU grant

Key Terms

Restricted Stock Units, 2019 Stock-Based Incentive Compensation Plan, vest, Common Stock

4 terms

Restricted Stock Units financial

"The RSUs were granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2019 Stock-Based Incentive Compensation Plan financial

"The RSUs were granted pursuant to the Company's 2019 Stock-Based Incentive Compensation Plan."

vest financial

"The RSUs are scheduled to vest on the first anniversary of the grant date, subject to continued service"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

Common Stock financial

"Each RSU represents the right to receive one share of Common Stock."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did INNOVATIVE SOLUTIONS & SUPPORT (ISSC) director Garry C. Dean report on this Form 4?

He reported receiving 5,618 Restricted Stock Units as a compensation grant. The RSUs were awarded at no cash cost and increase his direct holdings to 29,408 shares after the transaction, aligning part of his pay with the company’s stock performance over time.

How many INNOVATIVE SOLUTIONS & SUPPORT (ISSC) RSUs were granted to Garry C. Dean?

He received 5,618 Restricted Stock Units in this transaction. Each RSU represents the right to receive one share of ISSC common stock, subject to vesting conditions. This grant was made under the company’s 2019 Stock-Based Incentive Compensation Plan as part of director compensation.

When do Garry C. Dean’s INNOVATIVE SOLUTIONS & SUPPORT (ISSC) RSUs vest?

The RSUs are scheduled to vest on the first anniversary of the grant date. Vesting is conditioned on Dean’s continued service with the company, meaning he must remain in his role through that one-year period to receive the underlying common shares.

What does each INNOVATIVE SOLUTIONS & SUPPORT (ISSC) RSU granted to Garry C. Dean represent?

Each Restricted Stock Unit represents the right to receive one share of ISSC common stock. The shares are only delivered when the RSUs vest, which in this case is scheduled for the first anniversary of the grant date, assuming continued service by Dean.

How many INNOVATIVE SOLUTIONS & SUPPORT (ISSC) shares does Garry C. Dean hold after this RSU grant?

After the reported RSU award, Dean’s total direct holdings are 29,408 shares. This figure reflects his position following the 5,618-unit grant and indicates the scale of his equity stake tied to ISSC’s future stock performance and company outcomes.

Under which plan were Garry C. Dean’s INNOVATIVE SOLUTIONS & SUPPORT (ISSC) RSUs granted?

The RSUs were granted under the company’s 2019 Stock-Based Incentive Compensation Plan. This plan is designed to deliver equity-based compensation, such as RSUs, to align directors’ and employees’ interests with long-term shareholder value through ownership in ISSC common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/20/2026 - 01:48 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Dean Garry C.

(Last) (First) (Middle)

C/O INNOVATIVE SOLUTIONS & SUPPORT, INC.

720 PENNSYLVANIA DRIVE

(Street)

EXTON PENNSYLVANIA 19341

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
INNOVATIVE SOLUTIONS & SUPPORT INC [ ISSC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/16/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Restricted Stock Units	04/16/2026		A		5,618(1)	A	$0.00	29,408	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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. The RSUs are scheduled to vest on the first anniversary of the grant date, subject to continued service by the reporting person.

	/s/ Garry C. Dean	04/20/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)