Rimini Street (NASDAQ: RMNI) EVP logs RSU vesting and automatic tax-related share sales

Rhea-AI Filing Summary

Rimini Street, Inc. executive Kevin Maddock, EVP and Chief Recurring Revenue Officer, reported equity award vesting and related share movements. On March 4, 2026, 11,493 Restricted Stock Units and 5,632 Performance Units were converted into the same number of shares of common stock at a stated price of $0.00 per share.

To cover withholding taxes on these vesting events, a total of 7,209 shares of common stock were automatically sold in open-market transactions at $3.6428 per share under the company’s tax-withholding policy; the footnotes state Maddock did not initiate these sales. After the transactions, he directly owned 187,478 shares of common stock, plus 22,989 Restricted Stock Units and 11,264 Performance Units that each represent a contingent right to receive one share of common stock upon vesting.

Insider Trade Summary

Net Seller: 7,209 shares ($26,261)

Net Sell 6 txns

Insider Maddock Kevin

Role EVP,ChiefRecurringRev.Officer

Sold 7,209 shs ($26K)

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	11,493	$0.00	--
Exercise	Performance Units	5,632	$0.00	--
Exercise	Common Stock	11,493	$0.00	--
Sale	Common Stock	4,838	$3.6428	$18K
Exercise	Common Stock	5,632	$0.00	--
Sale	Common Stock	2,371	$3.6428	$9K

Holdings After Transaction: Restricted Stock Units — 22,989 shares (Direct); Performance Units — 11,264 shares (Direct); Common Stock — 189,055 shares (Direct)

Footnotes (1)

1. Reported transaction is an automatically-triggered "sell-to-cover" transaction related to the payment of withholding tax obligations pursuant to the Issuer's policy for tax withholdings associated with Restricted Stock Unit vesting events. The Reporting Person did not initiate the sale. Represents one third of the total 16,896 "Earned Performance Units" (as previously reported by the Reporting Person on a Form 4 dated February 20, 2026) under the terms of the Issuer's 2025 Long-Term Incentive Plan based upon the Issuer's achievement against a target "Adjusted EBITDA" performance goal for fiscal year 2025 and the Issuer's achievement against a target "Total Revenue" performance goal for fiscal year 2025, effective as of February 19, 2026 (the date the Issuer filed its Annual Report on Form 10-K for the year ended December 31, 2025). Reported transaction is an automatically-triggered "sell-to-cover" transaction related to the payment of withholding tax obligations pursuant to the Issuer's policy for tax withholdings associated with Performance Unit vesting events. The Reporting Person did not initiate the sale. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting. On March 4, 2025, the Reporting Person was granted 34,482 Restricted Stock Units, one-third of which vested on March 4, 2026. The remaining two-thirds will vest ratably on March 4, 2027 and March 4, 2028, generally subject to the Reporting Person continuing to be a Service Provider (as such term is defined in the Issuer's 2013 Equity Incentive Plan) through the applicable vesting date. Each Performance Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting. One-third of the "Earned Performance Units" vested on March 4, 2026. The remaining two-thirds vest ratably on March 4, 2027 and March 4, 2028, generally subject to the Reporting Person continuing to be a Service Provider (as such term is defined in the Issuer's 2013 Equity Incentive Plan) through the applicable vesting date.

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^*

Maddock Kevin

(Last) (First) (Middle)

C/O 1700 S. PAVILION CENTER DRIVE

SUITE 330

(Street)

LAS VEGAS NV 89135

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Rimini Street, Inc. [ RMNI ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP,ChiefRecurringRev.Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

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	03/04/2026		M		11,493	A	$0	189,055	D
Common Stock	03/04/2026		S(1)		4,838(1)	D(1)	$3.6428	184,217	D
Common Stock	03/04/2026		M		5,632(2)	A	$0	189,849	D
Common Stock	03/04/2026		S(3)		2,371(3)	D(3)	$3.6428	187,478	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
Restricted Stock Units	(4)	03/04/2026		M			11,493	(5)	(5)	Common Stock	11,493	$0	22,989	D
Performance Units	(6)	03/04/2026		M			5,632	(7)	(7)	Common Stock	5,632	$0	11,264	D

Explanation of Responses:

1. Reported transaction is an automatically-triggered "sell-to-cover" transaction related to the payment of withholding tax obligations pursuant to the Issuer's policy for tax withholdings associated with Restricted Stock Unit vesting events. The Reporting Person did not initiate the sale.

2. Represents one third of the total 16,896 "Earned Performance Units" (as previously reported by the Reporting Person on a Form 4 dated February 20, 2026) under the terms of the Issuer's 2025 Long-Term Incentive Plan based upon the Issuer's achievement against a target "Adjusted EBITDA" performance goal for fiscal year 2025 and the Issuer's achievement against a target "Total Revenue" performance goal for fiscal year 2025, effective as of February 19, 2026 (the date the Issuer filed its Annual Report on Form 10-K for the year ended December 31, 2025).

3. Reported transaction is an automatically-triggered "sell-to-cover" transaction related to the payment of withholding tax obligations pursuant to the Issuer's policy for tax withholdings associated with Performance Unit vesting events. The Reporting Person did not initiate the sale.

4. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

5. On March 4, 2025, the Reporting Person was granted 34,482 Restricted Stock Units, one-third of which vested on March 4, 2026. The remaining two-thirds will vest ratably on March 4, 2027 and March 4, 2028, generally subject to the Reporting Person continuing to be a Service Provider (as such term is defined in the Issuer's 2013 Equity Incentive Plan) through the applicable vesting date.

6. Each Performance Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

7. One-third of the "Earned Performance Units" vested on March 4, 2026. The remaining two-thirds vest ratably on March 4, 2027 and March 4, 2028, generally subject to the Reporting Person continuing to be a Service Provider (as such term is defined in the Issuer's 2013 Equity Incentive Plan) through the applicable vesting date.

Remarks:

	/s/ Celeste Rasmussen Peiffer, as Attorney-in-Fact	03/06/2026
	** 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.
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FAQ

What insider transactions did RMNI executive Kevin Maddock report on March 4, 2026?

Kevin Maddock reported equity award vesting and related share activity on March 4, 2026. 11,493 Restricted Stock Units and 5,632 Performance Units converted into common shares, and 7,209 shares were automatically sold to cover tax withholding obligations tied to these vesting events.

Were Kevin Maddock’s RMNI share sales discretionary or automatic?

The reported RMNI share sales were automatic sell-to-cover transactions. Footnotes explain they were triggered to pay withholding taxes under Rimini Street’s policies for Restricted Stock Unit and Performance Unit vesting events, and that the reporting person did not initiate or direct these sales personally.

How many Rimini Street shares does Kevin Maddock hold after these Form 4 transactions?

After the reported transactions, Kevin Maddock directly holds 187,478 shares of Rimini Street common stock. He also has 22,989 Restricted Stock Units and 11,264 Performance Units outstanding, each representing a contingent right to receive one common share upon future vesting, subject to service conditions.

What prices and amounts were involved in Kevin Maddock’s RMNI share sales?

A total of 7,209 Rimini Street common shares were sold at $3.6428 per share. These consisted of two open-market sales of 4,838 shares and 2,371 shares, executed solely to satisfy tax withholding obligations related to the vesting of Restricted Stock Units and Performance Units.

What do the reported RMNI Restricted Stock Units and Performance Units represent?

Each Restricted Stock Unit and Performance Unit reported for RMNI represents a contingent right to receive one share of common stock upon vesting. Vesting is tied to continued service and, for Performance Units, to previously determined performance goals under Rimini Street’s long-term incentive plans.