13G Filing: Tappan Street Partners and Peregrine Pharmaceuticals Inc (PPHM)

UNITED
STATES

SECURITIES
AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of
1934*

Peregrine Pharmaceuticals, Inc.

(Name of Issuer) Common Stock par value $0.0001 per share

(Title of Class of Securities) 713661502

(CUSIP Number) July 11, 2017

(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).