SC 13G

 UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED

PURSUANT TO RULE 13d-2(b)

(Amendment No.   )¹

Rimini Street, Inc.

 (Name of Issuer)

Common Stock, par value $0.0001 per share

 (Title of Class of Securities)

76674Q107

 (CUSIP Number)

December 31, 2018

 (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☒  Rule 13d-1(b)

☐  Rule 13d-1(c)

☐  Rule 13d-1(d)

1              The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			KINGSTOWN PARTNERS MASTER LTD.
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			CAYMAN ISLANDS
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					- 0 -
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					2,546,535(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					- 0 -
			8	SHARED DISPOSITIVE POWER
					2,546,535(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			2,546,535(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			3.89%
	12	TYPE OF REPORTING PERSON
			CO

⁽¹⁾ Includes 1,961,189 shares of Common Stock, $0.0001 par value (the “Common Stock”) issuable upon conversion of Series A Convertible Preferred Stock, par value $0.0001 per share (the “Series A Preferred Stock”).

2

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			KINGSTOWN PARTNERS II, L.P.
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			DELAWARE
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					-0-
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					888,796(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					-0-
			8	SHARED DISPOSITIVE POWER
					888,796(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			888,796(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			1.38%
	12	TYPE OF REPORTING PERSON
			PN

⁽¹⁾ Includes 677,345 shares of Common Stock issuable upon conversion of Series A Preferred Stock.

3

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			KTOWN, LP
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			DELAWARE
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					-0-
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					841,398(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					-0-
			8	SHARED DISPOSITIVE POWER
					841,398(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			841,398(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			1.31%
	12	TYPE OF REPORTING PERSON
			PN

⁽¹⁾ Includes 641,341 shares of Common Stock issuable upon conversion of Series A Preferred Stock.

4

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			KINGFISHERS, LP
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			DELAWARE
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					-0-
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					538,130(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					-0-
			8	SHARED DISPOSITIVE POWER
					538,130(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			538,130(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			Less than 1%
	12	TYPE OF REPORTING PERSON
			PN

⁽¹⁾ Includes 409,984 shares of Common Stock issuable upon conversion of Series A Preferred Stock.

5

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			KINGSTOWN CAPITAL PARTNERS, LLC
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			DELAWARE
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					-0-
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					2,268,324(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					-0-
			8	SHARED DISPOSITIVE POWER
					2,268,324(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			2,268,324(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			3.47%
	12	TYPE OF REPORTING PERSON
			OO

⁽¹⁾ Includes 1,728,670 shares of Common Stock issuable upon conversion of Series A Preferred Stock.

6

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			KINGSTOWN CAPITAL MANAGEMENT L.P.
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			DELAWARE
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					-0-
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					4,814,859(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					-0-
			8	SHARED DISPOSITIVE POWER
					4,814,859(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			4,814,859(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			7.16%
	12	TYPE OF REPORTING PERSON
			PN

⁽¹⁾ Includes 3,689,859 shares of Common Stock issuable upon conversion of Series A Preferred Stock.

7

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			KINGSTOWN MANAGEMENT GP LLC
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			DELAWARE
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					-0-
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					4,814,859(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					-0-
			8	SHARED DISPOSITIVE POWER
					4,814,859(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			4,814,859(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			7.16%
	12	TYPE OF REPORTING PERSON
			OO

⁽¹⁾ Includes 3,689,859 shares of Common Stock issuable upon conversion of Series A Preferred Stock.

8

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			MICHAEL BLITZER
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			USA
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					-0-
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					4,814,859(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					-0-
			8	SHARED DISPOSITIVE POWER
					4,814,859(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			4,814,859(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			7.16%
	12	TYPE OF REPORTING PERSON
			IN

⁽¹⁾ Includes 3,689,859 shares of Common Stock issuable upon conversion of Series A Preferred Stock.

9

CUSIP NO. 76674Q107

	1	NAME OF REPORTING PERSON
			GUY SHANON
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP				(a) ☐
						(b) ☐
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION
			USA
NUMBER OF			5	SOLE VOTING POWER
SHARES
BENEFICIALLY					-0-
OWNED BY			6	SHARED VOTING POWER
EACH
REPORTING					4,814,859(1)
PERSON WITH			7	SOLE DISPOSITIVE POWER
					-0-
			8	SHARED DISPOSITIVE POWER
					4,814,859(1)
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			4,814,859(1)
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES				☐
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
			7.16%
	12	TYPE OF REPORTING PERSON
			IN

⁽¹⁾ Includes 3,689,859 shares of Common Stock issuable upon conversion of Series A Preferred Stock.

10

CUSIP NO. 76674Q107

Item 1(a). Name of Issuer:

Rimini Street, Inc., a Delaware corporation (the “Issuer”).

Item 1(b). Address of Issuer’s Principal Executive Offices:

3993 Howard Hughes Parkway, Suite 500, Las Vegas, NV 89169

Item 2(a). Name of Person Filing:

This statement is filed by Kingstown Capital Management L.P., a Delaware limited partnership (“Kingstown Capital”), Kingstown Management GP LLC, a Delaware limited liability company (“Kingstown Management”), Kingstown Capital Partners, LLC, a Delaware limited liability company (“General Partner”), Kingstown Partners Master Ltd., a Cayman Islands corporation (“Master Fund”), Kingstown Partners II, L.P., a Delaware limited partnership (“Fund II”), Ktown, LP, a Delaware limited partnership (“Ktown”), Kingfishers LP, a Delaware limited partnership (“Kingfishers” and together with Master Fund, Fund II and Ktown, the “Funds”), Michael Blitzer and Guy Shanon. Each of the foregoing is referred to as a “Reporting Person” and collectively as the “Reporting Persons.”

General Partner is the general partner of each of Fund II, Ktown and Kingfishers. By virtue of this relationship, General Partner may be deemed to beneficially own the Shares (as defined below) owned in the aggregate by Fund II, Ktown and Kingfishers. Kingstown Capital is the investment manager of each of the Funds. Kingstown Management is the general partner of Kingstown Capital. Each of Mr. Blitzer and Mr. Shanon is a managing member of Kingstown Management. By virtue of these relationships, each of General Partner, Kingstown Capital, Kingstown Management, Mr. Blitzer and Mr. Shanon may be deemed to beneficially own the Shares (as defined below) owned by the Funds.

Item 2(b). Address of Principal Business Office or, if none, Residence:

The principal business address of each of General Partner, Kingstown Capital, Kingstown Management, Fund II, Ktown, Kingfishers, Michael Blitzer and Guy Shanon is 34 East 51^st Street, 5^th Floor, New York, NY 10022. The principal business address of Master Fund is c/o Intertrust Corporate Services, 190 Elgin Avenue, George Town, Grand Cayman KY1-9005, Cayman Islands.

Item 2(c). Citizenship:

Kingstown Capital, Kingstown Management, General Partner, Fund II, Ktown and Kingfishers are organized under the laws of the State of Delaware. Master Fund is organized under the laws of the Cayman Islands. Messrs. Blitzer and Shanon are citizens of the United States of America.

Item 2(d). Title of Class of Securities:

Common Stock, par value $0.0001 per share (the “Shares”)

11

CUSIP NO. 76674Q107

Item 2(e). CUSIP Number:

76674Q107

Item 3. If this statement is filed pursuant to Section 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

	/  /	Not Applicable
(a)	/  /	Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o).
(b)	/  /	Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c).
(c)	/  /	Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c).
(d)	/  /	Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e)	/ X /	Investment adviser in accordance with Section 240.13d-1(b)(1)(ii)(E).
(f)	/  /	Employee benefit plan or endowment fund in accordance with Section 240.13d-1(b)(1)(ii)(F).
(g)	/  /	Parent holding company or control person in accordance with Section 240.13d-1(b)(1)(ii)(G).
(h)	/  /	Savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).
(i)	/  /	Church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act (15 U.S.C. 80a-3).
(j)	/  /	Non-U.S. institution in accordance with Section 240.13d-1(b)(1)(ii)(J).
(k)	/  /	Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).

Item 4. Ownership.

All ownership information reported in this Item 4 is as of the close of business on December 31, 2018. Subsequent to December 31, 2018, the Reporting Persons became the beneficial owner of additional Shares through the declaration by the Issuer of a Paid-in-Kind dividend on the Issuer’s Series A Convertible Preferred Stock, par value $0.0001 per share (the “Series A Preferred Stock”).

Master Fund

(a) Amount beneficially owned:

2,546,535 Shares (Includes 1,961,189 Shares issuable upon conversion of Series A Preferred Stock)

12

CUSIP NO. 76674Q107

(b) Percent of class:

3.89% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 1,961,189 Shares issuable upon conversion of Series A Preferred Stock.

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

(ii) Shared power to vote or to direct the vote

2,546,535 Shares (Includes 1,961,189 Shares issuable upon conversion of Series A Preferred Stock)

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

2,546,535 Shares (Includes 1,961,189 Shares issuable upon conversion of Series A Preferred Stock)

Fund II

(a) Amount beneficially owned:

888,796 Shares (Includes 677,345 Shares issuable upon conversion of Series A Preferred Stock)

(b) Percent of class:

1.38% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 677,345 Shares issuable upon conversion of Series A Preferred Stock).

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

(ii) Shared power to vote or to direct the vote

888,796 Shares (Includes 677,345 Shares issuable upon conversion of Series A Preferred Stock)

13

CUSIP NO. 76674Q107

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

888,796 Shares (Includes 677,345 Shares issuable upon conversion of Series A Preferred Stock)

Ktown

(a) Amount beneficially owned:

841,398 Shares (Includes 641,341 Shares issuable upon conversion of Series A Preferred Stock)

(b) Percent of class:

1.31% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 641,341 Shares issuable upon conversion of Series A Preferred Stock).

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

(ii) Shared power to vote or to direct the vote

841,398 Shares (Includes 641,341 Shares issuable upon conversion of Series A Preferred Stock)

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

841,398 Shares (Includes 641,341 Shares issuable upon conversion of Series A Preferred Stock)

14

CUSIP NO. 76674Q107

Kingfishers

(a) Amount beneficially owned:

538,130 Shares (Includes 409,984 Shares issuable upon conversion of Series A Preferred Stock)

(b) Percent of class:

Less than 1% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 409,984 Shares issuable upon conversion of Series A Preferred Stock).

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

(ii) Shared power to vote or to direct the vote

538,130 Shares (Includes 409,984 Shares issuable upon conversion of Series A Preferred Stock)

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

538,130 Shares (Includes 409,984 Shares issuable upon conversion of Series A Preferred Stock)

General Partner

(a) Amount beneficially owned:

2,268,324 Shares (Includes 1,728,670 Shares issuable upon conversion of Series A Preferred Stock)

(b) Percent of class:

3.47% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 1,728,670 Shares issuable upon conversion of Series A Preferred Stock).

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

15

CUSIP NO. 76674Q107

(ii) Shared power to vote or to direct the vote

2,268,324 Shares (Includes 1,728,670 Shares issuable upon conversion of Series A Preferred Stock)

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

2,268,324 Shares (Includes 1,728,670 Shares issuable upon conversion of Series A Preferred Stock)

Kingstown Capital

(a) Amount beneficially owned:

4,814,859 Shares (Includes 3,689,859 shares issuable upon conversion of Series A Preferred Stock)

(b) Percent of class:

7.16% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 3,689,859 Shares issuable upon conversion of Series A Preferred Stock).

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

(ii) Shared power to vote or to direct the vote

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

16

CUSIP NO. 76674Q107

Kingstown Management

(a) Amount beneficially owned:

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

(b) Percent of class:

7.16% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 3,689,859 Shares issuable upon conversion of Series A Preferred Stock).

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

(ii) Shared power to vote or to direct the vote

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

Mr. Blitzer

(a) Amount beneficially owned:

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

(b) Percent of class:

7.16% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 3,689,859 Shares issuable upon conversion of Series A Preferred Stock).

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

17

CUSIP NO. 76674Q107

(ii) Shared power to vote or to direct the vote

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

Mr. Shanon

(a) Amount beneficially owned:

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

(b) Percent of class:

7.16% (based upon 63,580,470 Shares outstanding, which is the total number of Shares outstanding as of November 1, 2018 as reported in the Issuer’s Registration Statement on Form S-3 (File No. 333-228322) filed with the Securities and Exchange Commission on November 9, 2018, plus 3,689,859 Shares issuable upon conversion of Series A Preferred Stock).

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

0 Shares

(ii) Shared power to vote or to direct the vote

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

(iii) Sole power to dispose or to direct the disposition of

0 Shares

(iv) Shared power to dispose or to direct the disposition of

4,814,859 Shares (Includes 3,689,859 Shares issuable upon conversion of Series A Preferred Stock)

18

CUSIP NO. 76674Q107

General Partner is the general partner of each of the Fund II, Ktown and Kingfishers. By virtue of this relationship, General Partner may be deemed to beneficially own the Shares owned in the aggregate by Fund II, Ktown and Kingfishers. Kingstown Capital is the investment manager of each of the Funds. Kingstown Management is the general partner of Kingstown Capital. Each of Mr. Blitzer and Mr. Shanon is a managing member of Kingstown Management. By virtue of these relationships, each of General Partner, Kingstown Capital, Kingstown Management, Mr. Blitzer and Mr. Shanon may be deemed to beneficially own the Shares owned by the Funds.

The filing of this Schedule 13G shall not be construed as an admission that the Reporting Persons are, for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, the beneficial owners of any of the Shares reported herein. Each of the Reporting Persons specifically disclaims beneficial ownership of the Shares reported herein that are not directly owned by such Reporting Person.

Item 5. Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ].

Item 6. Ownership of More than Five Percent on Behalf of Another Person.

Not Applicable

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not Applicable

Item 8. Identification and Classification of Members of the Group.

See Exhibit 99.1

Item 9. Notice of Dissolution of Group.

Not Applicable.

Item 10. Certifications.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

19

CUSIP NO. 76674Q107

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Date: February __, 2019	KINGSTOWN CAPITAL MANAGEMENT L.P.
	By:	Kingstown Management GP LLC
		its general partner
	By:	/s/ Michael Blitzer
		Michael Blitzer Managing Member

KINGSTOWN PARTNERS II, L.P.
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KTOWN, LP
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGFISHERS, LP
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

20

CUSIP NO. 76674Q107

KINGSTOWN MANAGEMENT GP LLC
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGSTOWN CAPITAL PARTNERS, LLC
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGSTOWN PARTNERS MASTER LTD.
By:	/s/ Michael Blitzer
	Michael Blitzer Director

/s/ Michael Blitzer

MICHAEL BLITZER

/s/ Guy Shanon

GUY SHANON

21

EX-99.1

Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13G dated February __, 2019 (including amendments thereto) with respect to the Common Stock of Rimini Street, Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Date: February __, 2019	KINGSTOWN CAPITAL MANAGEMENT L.P.
	By:	Kingstown Management GP LLC
		its general partner
	By:	/s/ Michael Blitzer
		Michael Blitzer Managing Member

KINGSTOWN PARTNERS II, L.P.
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KTOWN, LP
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGFISHERS, LP
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGSTOWN MANAGEMENT GP LLC
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGSTOWN CAPITAL PARTNERS, LLC
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGSTOWN PARTNERS MASTER LTD.
By:	/s/ Michael Blitzer
	Michael Blitzer Director

/s/ Michael Blitzer

MICHAEL BLITZER

/s/ Guy Shanon

GUY SHANON