Information Services Group (III) CFO RSU tax withholding of 20,426 shares

Rhea-AI Filing Summary

Information Services Group Inc. executive vice president and chief financial officer Michael A. Sherrick reported a tax-related share disposition. On the vesting of restricted stock units issued under Rule 16b-3, 20,426 shares of common stock were withheld and deemed disposed of back to the company to satisfy tax withholding obligations. Following this non-market, tax-withholding transaction, Sherrick directly holds 424,185 shares of common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Sherrick Michael A.

Role EVP & CHIEF FINANCIAL OFFICER

Type	Security	Shares	Price	Value
Tax Withholding	Shares of Common Stock	20,426	$4.51	$92K

Holdings After Transaction: Shares of Common Stock — 424,185 shares (Direct, null)

Footnotes (1)

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Key Figures

Tax-withheld shares: 20,426 shares Price per share: $4.51 per share Post-transaction holdings: 424,185 shares

3 metrics

Tax-withheld shares 20,426 shares Shares deemed disposed to issuer for tax withholding on RSU vesting

Price per share $4.51 per share Transaction price used for the tax-withholding disposition

Post-transaction holdings 424,185 shares CFO’s direct common stock ownership after the transaction

Key Terms

restricted stock units, tax withholding obligations, Rule 16b-3

3 terms

restricted stock units financial

"in connection with vesting of restricted stock units issued in accordance with Rule 16b-3"

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 withholding obligations financial

"withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting"

Rule 16b-3 regulatory

"restricted stock units issued in accordance with Rule 16b-3"

Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.

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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^*

Sherrick Michael A.

(Last) (First) (Middle)

400 ATLANTIC STREET

(Street)

STAMFORD CONNECTICUT 06901

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Information Services Group Inc. [ III ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & CHIEF FINANCIAL OFFICER

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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
Shares of Common Stock	06/01/2026		F(1)		20,426	D	$4.51	424,185	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. Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of restricted stock units issued in accordance with Rule 16b-3

	/s/ Michael A. Sherrick, Attorney-in-Fact	06/03/2026
	** 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 insider transaction did Information Services Group (III) report for Michael A. Sherrick?

Information Services Group reported that CFO Michael A. Sherrick had 20,426 shares of common stock withheld and deemed disposed of back to the company to cover tax withholding obligations arising from vesting restricted stock units under Rule 16b-3.

Was the Information Services Group (III) CFO’s Form 4 transaction an open-market sale?

No, the Form 4 shows a tax-withholding disposition, not an open-market sale. Shares were deemed disposed of to the issuer to satisfy tax withholding obligations tied to vesting restricted stock units, rather than being sold on the open market.

How many Information Services Group (III) shares were involved in the CFO’s tax withholding?

The filing shows that 20,426 shares of Information Services Group common stock were withheld and deemed disposed of to the issuer. This occurred in connection with tax withholding obligations on the vesting of restricted stock units granted to the CFO.

How many Information Services Group (III) shares does the CFO hold after this Form 4 transaction?

After the reported tax-withholding disposition, CFO Michael A. Sherrick directly holds 424,185 shares of Information Services Group common stock. This post-transaction balance reflects his remaining direct ownership following the withholding of 20,426 shares for tax obligations.

What does the F transaction code mean in the Information Services Group (III) Form 4?

The F code indicates payment of an exercise price or tax liability by delivering securities. In this case, it reflects a deemed disposition of 20,426 shares back to the issuer to satisfy tax withholding obligations related to vesting restricted stock units under Rule 16b-3.