[Form 4] Innovative Solutions & Support Insider Trading Activity

Rhea-AI Filing Summary

Innovative Solutions & Support (NASDAQ: ISSC) filed a Form 4 showing that 10% owner Christopher Harborne, through Klear Kite LLC, sold 90,655 common shares on 06/25/2025 at an average price of $12.9217, raising roughly $1.17 million.

Post-sale indirect ownership stands at 1,860,586 shares, a reduction of about 4.6% from his previous position. No derivatives were involved, and the filing does not cite a Rule 10b5-1 trading plan. The sale is material in dollar terms but the insider retains a sizeable stake, leaving control dynamics largely unchanged.

Positive

• None.

Negative

• 10% owner Christopher Harborne sold 90,655 shares (~$1.17 million), reducing his ISSC stake by about 4.6%

Insights

Insider Trading Analyst

TL;DR: $1.17 M insider sale trims stake; modestly bearish signal

The Form 4 reveals a discretionary sale—no 10b5-1 plan—of 90,655 shares by a 10% holder. While only 4.6% of Harborne’s position, the cash value is material. Such sales from well-informed insiders can foreshadow limited upside or near-term valuation concerns. However, with 1.86 M shares still held, alignment of interests persists. Net impact: slightly negative sentiment rather than a structural change.

Portfolio Manager

TL;DR: Notable but non-thesis-breaking trim by major holder

A $1.17 M liquidity event by a long-term 10% owner is worth monitoring yet remains modest relative to his residual stake (~18% of shares outstanding). The absence of derivative hedging and retention of a large position soften the negative read-through. I view the transaction as informational; unless followed by additional sales or adverse fundamentals, portfolio posture stays unchanged.

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^*

Harborne Christopher

(Last) (First) (Middle)

23F M THAI TOWER, ALL SEASONS PLACE

87 WIRELESS ROAD

(Street)

BANGKOK W1 10300

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2025

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

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

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

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, par value $0.001 per share	06/25/2025		S		90,655	D	$12.9217	1,860,586	I	See Footnote(1)

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, par value $0.001 per share, of Innovative Solutions and Support, Inc. are directly held by Klear Kite LLC, a Delaware limited liability company, whose sole member is Christopher Harborne.

	/s/ Christopher Harborne	06/26/2025
	** 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.

FAQ

How many ISSC shares did 10% owner Christopher Harborne sell on 06/25/2025?

He sold 90,655 common shares, as disclosed in Table I of the Form 4.

What was the average sale price for the insider transaction in ISSC stock?

The shares were sold at an average price of $12.9217 per share.

What is Christopher Harborne's ISSC shareholding after the sale?

Following the transaction, he indirectly owns 1,860,586 shares through Klear Kite LLC.

What is the estimated dollar value of the ISSC insider sale?

The sale is valued at approximately $1.17 million (90,655 × $12.9217).

Did the Form 4 indicate a Rule 10b5-1 trading plan for this sale?

No, the filing does not indicate that the sale was executed under a Rule 10b5-1 plan.

What percentage of Harborne's prior ISSC holdings was sold?

The 90,655-share sale represents roughly 4.6 % of his pre-sale position.