Innovative Solutions (NASDAQ: ISSC) CFO has shares withheld for RSU taxes

Rhea-AI Filing Summary

Innovative Solutions & Support Inc. Chief Financial Officer Jeffrey DiGiovanni had 765 shares of common stock withheld on April 8, 2026 to cover taxes due on vesting restricted stock units. The shares were valued at $23.02 each, and he now directly holds 88,371 shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider DiGiovanni Jeffrey

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	765	$23.02	$18K

Holdings After Transaction: Common Stock — 88,371 shares (Direct)

Footnotes (1)

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Key Figures

Shares withheld for taxes: 765 shares Withholding price per share: $23.02 per share Shares held after transaction: 88,371 shares +1 more

4 metrics

Shares withheld for taxes 765 shares Tax-withholding disposition on April 8, 2026

Withholding price per share $23.02 per share Value used for withheld shares

Shares held after transaction 88,371 shares Direct ownership following tax withholding

Transaction code F Payment of tax liability by delivering securities

Key Terms

restricted stock units, tax obligations, tax-withholding disposition, Common Stock

4 terms

restricted stock units financial

"in connection with the vesting of restricted stock units."

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.

tax obligations financial

"withheld by the issuer to satisfy the reporting person's tax obligations"

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Common Stock financial

""security_title": "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.

Form 4 Insider Transactions: What Each Field Means →

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^*

DiGiovanni Jeffrey

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/08/2026

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
Common Stock	04/08/2026		F		765(1)	D	$23.02	88,371	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. 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.

	/s/ Jeffrey DiGiovanni	04/10/2026
	** 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)

FAQ

What did ISSC CFO Jeffrey DiGiovanni report in this Form 4 filing?

He reported that 765 shares of Innovative Solutions & Support common stock were withheld by the company to satisfy his tax obligations from vesting restricted stock units. This is a routine compensation-related event, not an open-market stock purchase or sale.

Was the ISSC Form 4 transaction an open-market sale of shares?

No, the Form 4 shows a tax-withholding disposition, not an open-market sale. The company withheld 765 shares at $23.02 per share to pay taxes arising from the vesting of restricted stock units granted as part of the CFO’s equity compensation.

How many ISSC shares does CFO Jeffrey DiGiovanni hold after this transaction?

After the tax-withholding transaction, Jeffrey DiGiovanni directly holds 88,371 shares of Innovative Solutions & Support common stock. The reported transaction only reduced his position by the 765 shares withheld for taxes related to the RSU vesting event.

What does the F transaction code mean in the ISSC Form 4 filing?

The F code indicates a tax-withholding disposition, where shares are delivered to the issuer to pay exercise price or tax liabilities. Here, 765 shares were withheld specifically to satisfy the CFO’s tax obligations linked to the vesting of restricted stock units.

Why were ISSC shares withheld in connection with restricted stock units?

When restricted stock units vest, the value is generally taxable to the recipient. In this case, Innovative Solutions & Support withheld 765 shares of common stock at $23.02 per share from the CFO to cover those tax obligations instead of requiring a separate cash payment.