Acosta Jack L Form 3 Rimini Street / JACK L ACOSTA ownership change

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

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1. Name and Address of Reporting Person^*

ACOSTA JACK L

(Last) (First) (Middle)

C/O RIMINI STREET, INC.

3993 HOWARD HUGHES PARKWAY, SUITE 780

(Street)

LAS VEGAS NV 89169

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/10/2017

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

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	(1)	10/07/2023	Common Stock	239,412	4.5945	D
Employee Stock Option (right to buy)	(2)	06/29/2027	Common Stock	17,655	7.5183	D

Explanation of Responses:

1. The shares subject to the option are fully vested and exercisable.

2. 100% of the shares subject to the option will vest on January 2, 2018, subject to the Reporting Person's continued service to the Issuer.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Daniel B. Winslow, as Attorney-in-Fact	10/20/2017
	** 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 5 (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.