Edgar Filing: TANG KEVIN C

Ownership Submission

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 ^*

TANG KEVIN C

2. Issuer Name and Ticker or Trading Symbol
LA JOLLA PHARMACEUTICAL CO [LJPC]

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

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

(Last)

(First)

(Middle)

4747 EXECUTIVE DRIVE, SUITE 510

3. Date of Earliest Transaction (Month/Day/Year)
01/07/2019

(Street)

SAN DIEGO, CA 92121

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)
1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	01/07/2019		P		100,000	A	$ 5.8384 ⁽¹⁾	3,738,893	I ⁽²⁾	By LP ⁽²⁾
Common Stock	01/08/2019		P		200,000	A	$ 5.332 ⁽³⁾	3,938,893	I ⁽²⁾	By LP ⁽²⁾
Common Stock	01/08/2019		P		200,000	A	$ 5.2449 ⁽⁴⁾	4,138,893	I ⁽²⁾	By LP ⁽²⁾
Common Stock	01/08/2019		P		200,000	A	$ 5.2397 ⁽⁵⁾	4,338,893	I ⁽²⁾	By LP ⁽²⁾
Common Stock	01/08/2019		P		200,000	A	$ 5.3396 ⁽⁶⁾	4,538,893	I ⁽²⁾	By LP ⁽²⁾
Common Stock	01/08/2019		P		200,000	A	$ 5.3785 ⁽⁷⁾	4,738,893	I ⁽²⁾	By LP ⁽²⁾
Common Stock	01/08/2019		P		120,786	A	$ 5.4286 ⁽⁸⁾	4,859,679	I ⁽²⁾	By LP ⁽²⁾
Common Stock	01/09/2019		P		79,214	A	$ 5.5395 ⁽⁹⁾	4,938,893	I ⁽²⁾	By LP ⁽²⁾

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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 control number.		SEC 1474 (9-02)

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

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
TANG KEVIN C 4747 EXECUTIVE DRIVE, SUITE 510 SAN DIEGO, CA 92121	X	X
TANG CAPITAL PARTNERS LP 4747 EXECUTIVE DRIVE, SUITE 510 SAN DIEGO, CA 92121		X
TANG CAPITAL MANAGEMENT LLC 4747 EXECUTIVE DRIVE, SUITE 510 SAN DIEGO, CA 92121		X

Signatures

/s/ Kevin Tang		01/09/2019
^**Signature of Reporting Person		Date
/s/ Kevin Tang, Managing Member of Tang Capital Management, LLC, General Partner		01/09/2019
^**Signature of Reporting Person		Date
/s/ Kevin Tang, Managing Member		01/09/2019
^**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 prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $5.71 to $5.99. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the SEC Staff, upon request, full information regarding the number of shares purchased at each price within the ranges set forth in footnotes 1 and 3 through 9 herein.
(2)	The shares are beneficially owned by Tang Capital Partners, LP ("TCP"). Kevin Tang is the sole manager of Tang Capital Management, LLC, which is the general partner of TCP. Mr. Tang has a pecuniary interest in a portion of the shares beneficially held by TCP.
(3)	The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $5.04 to $5.72.
(4)	The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $5.10 to $5.43.
(5)	The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $5.12 to $5.32.
(6)	The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $5.25 to $5.48.
(7)	The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $5.29 to $5.50.
(8)	The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $5.40 to $5.47.
(9)	The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $5.44 to $5.64.

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