UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.)*

Seelos Therapeutics, Inc.

(Name of Issuer)

Common Stock, $.0001 par value

(Title of Class of Securities)

81577F109

(CUSIP Number)

January 31, 2019

(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)

* 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 the disclosures provided in a prior cover page.

The information required in 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. 81577F109 Page 2 of 7

1	NAME OF REPORTING PERSONS Altium Capital Management, LP I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) EIN: 82-2066653
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a) ☐ (b) ☒
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United State of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:		5	SOLE VOTING 0
		6	SHARED VOTING POWER 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES			☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 6.61%* (See Item 4) *
12	TYPE OF REPORTING PERSON IA

CUSIP No . 81577F109 Page 3 of 7

1	NAME OF REPORTING PERSONS Altium Growth Fund, LP I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) EIN: 82-2105101
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a) ☐ (b) ☒
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:		5	SOLE VOTING 0
		6	SHARED VOTING POWER 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES			☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 6.61% (See Item 4) *
12	TYPE OF REPORTING PERSON PN

CUSIP No . 81577F109 Page 4 of 7

1	NAME OF REPORTING PERSONS Altium Growth GP, LLC I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) EIN: 82-2086430
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a) ☐ (b) ☒
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United State of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:		5	SOLE VOTING 0
		6	SHARED VOTING POWER 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 228,676 shares of Common Stock 182,941 shares of Common Stock issuable upon exercise of Series A Warrants (See Item 4) *
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES			☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 6.61% (See Item 4) *
12	TYPE OF REPORTING PERSON PN

CUSIP No. 81577F109 Page 5 of 7

Item 1(a).	Name of Issuer:                                                          Seelos Therapeutics, Inc (the “Issuer”)
Item 1(b).	Address of Issuer’s Principal Executive Offices: 300 Park Avenue, 12th Floor New York, NY 10022
Item 2(a).	Name of Person Filing: This statement is jointly filed by and on behalf of each of Altium Growth Fund, LP, Altium Capital Management, LP, and Altium Growth GP, LLC. Altium Growth Fund, LP is the record and direct beneficial owner of the securities covered by this statement. Altium Capital Management, LP is the investment adviser of, and may be deemed to beneficially own securities, owned by, Altium Growth Fund, LP. Altium Growth GP, LLC is the general partner of, and may be deemed to beneficially own securities owned by, Altium Growth Fund, LP. Each reporting person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) or 13(g) of the Act or any other purpose, the beneficial owner of any securities covered by this statement. Each of the reporting persons may be deemed to be a member of a group with respect to the Issuer or securities of the Issuer for the purposes of Section 13(d) or 13(g) of the Act. Each of the reporting persons declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) or 13(g) of the Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate, or other group for the purpose of acquiring, holding, or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group with respect to the Issuer or any securities of the Issuer.
Item 2(b).	Address of Principal Business Office or, if None, Residence:
	The address of the principal business office of each of the reporting persons is 551 Fifth  Ave, FL 19 New York, NY 10176
Item 2(c).	Citizenship:
	See Item 4 on the cover page(s) hereto.
Item 2(d).	Title of Class of Securities:
	Common Stock
Item 2(e).	CUSIP Number: 81577F109

CUSIP No . 81577F109 Page 6 of 7

Item 3.	If This Statement is Filed Pursuant to §§240.13d-1(b), or 240.13d-2(b) or (c), Check Whether the Person Filing is a:
	(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)	☐	An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);
	(f)	☐	An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);
	(g)	☐	A parent holding company or control person in accordance with §240.13d-1(b)(ii)(G);
	(h)	☐	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
	(i)	☐	A 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)	☐	Group, in accordance with §240.13d-1(b)(1)(ii)(J).
Item 4.	Ownership.
	Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

The information as of the date of the event which requires filing of this statement required by Items 4(a) – (c) is set forth in Rows 5 – 11 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.  The percentage set forth in Row 11 of the cover page for each Reporting Person is based on 6,221,822 shares of Common Stock issued and outstanding as of January 24, 2019, as represented in the Company’s Current Report on Form 8-K Form filed with the Securities and Exchange Commission on January 24, 2019, and assumes the exercise of the Company's reported warrants (the "Reported Warrants") and, subject to the Blockers (as defined below).

Pursuant to the terms of the Reported Warrants, the Reporting Persons cannot exercise the Reported Warrants to the extent the Reporting Persons would beneficially own, after any such exercise, more than 9.99% of the outstanding shares of Common Stock (the "Blocker"), and the percentage set forth in Row 11 of the cover page for each Reporting Person gives effect to the Blocker.

CUSIP No . 81642T100 Page 7 of 7

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.
	Not applicable
Item 9.	Notice of Dissolution of Group.
	Not applicable
Item 10.	Certification.

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, other than activities solely in connection with a nomination under § 240.14a-11.

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. 

Dated:	February 8, 2019
Altium Capital Management, LP
By:	/s/ Jacob Gottlieb
Name:	Jacob Gottlieb
Title:	CEO
Altium Growth Fund, LP
By:	Altium Growth GP, LLC
Its:	General Partner
Signature:	/s/ Jacob Gottlieb
Name:	Jacob Gottlieb
Title:	CEO
Altium Growth GP, LLC
By:	/s/ Jacob Gottlieb
Name:	Jacob Gottlieb
Title:	CEO