FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Aisling Capital IV, LP   2. Issuer Name and Ticker or Trading Symbol Zosano Pharma Corp [ZSAN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 888 SEVENTH AVENUE, 12TH FLOOR,  3. Date of Earliest Transaction (Month/Day/Year) 04/11/2019 (Street) NEW YORK, NY 10106 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) 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, par value of $0.0001 04/11/2019   A   428,571 A $ 3.5 2,028,571 D (1)

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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Aisling Capital IV, LP 888 SEVENTH AVENUE, 12TH FLOOR NEW YORK, NY 10106		X
Aisling Capital Partners IV, LP 888 SEVENTH AVE., 12TH FLOOR NEW YORK, NY 10106		X
Aisling Capital Partners IV LLC 888 SEVENTH AVE., 12TH FLOOR NEW YORK, NY 10106		X
ELMS STEVE C/O AISLING CAPITAL MANAGEMENT LP 888 SEVENTH AVE., 12TH FLOOR NEW YORK, NY 10106		X
SCHIFF ANDREW N C/O AISLING CAPITAL MANAGEMENT LP 888 SEVENTH AVE., 12TH FLOOR NEW YORK, NY 10106		X

Signatures

AISLING CAPITAL IV, LP, by Aisling Capital Partners IV, LP, its General Partner, by Aisling Capital Partners IV LLC, its General Partner, /s/ Andrew Schiff, Managing Member		04/12/2019
**Signature of Reporting Person		Date
AISLING CAPITAL PARTNERS IV, LP, by Aisling Capital Partners IV LLC, its General Partner, /s/ Andrew Schiff, Managing Member		04/12/2019
**Signature of Reporting Person		Date
AISLING CAPITAL PARTNERS IV LLC, /s/ Andrew Schiff, Managing Member		04/12/2019
**Signature of Reporting Person		Date
/s/ Steve Elms		04/12/2019
**Signature of Reporting Person		Date
/s/ Andrew Schiff		04/12/2019
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The securities are directly held by Aisling Capital IV, LP ("Aisling"), and may be deemed to be beneficially owned by Aisling Capital Partners IV, LP ("Aisling GP"), as general partner of Aisling, Aisling Capital Partners IV LLC ("Aisling Partners"), as general partner of Aisling GP, and each of the individual managing members and partners (collectively, the "Managers") of Aisling GP and Aisling Partners. The Managers of Aisling Partners are Dr. Andrew Schiff and Steve Elms.

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