Sec Form 4 Filing - TANG KEVIN @ Aurinia Pharmaceuticals Inc. - 2026-05-29

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 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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1. Name and Address of Reporting Person TANG KEVIN 2. Issuer Name and Ticker or Trading Symbol Aurinia Pharmaceuticals Inc. [ AUPH] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) 4747 EXECUTIVE DR, SUITE 210 3. Date of Earliest Transaction (MM/DD/YY) 05/29/2026 (Street) SAN DIEGO, CA92121 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 Shares 05/29/2026 P 2,299 A $ 15.35 ( 1 ) 12,231,799 I By LP ( 2 ) Common Shares 05/29/2026 P 262,682 A $ 15.31 ( 3 ) 12,494,481 I By LP ( 2 ) Common Shares 06/01/2026 P 343,521 A $ 15.28 ( 4 ) 12,838,002 I By LP ( 2 ) Common Shares 06/01/2026 P 99 A $ 15.34 ( 5 ) 12,838,101 I By LP ( 2 ) Common Shares 06/02/2026 P 206,005 A $ 15.28 ( 6 ) 13,044,106 I By LP ( 2 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Short Put Options (potential obligation to buy) $ 15 06/02/2026 J 10,000 06/02/2026( 7 ) 01/15/2027 Common Shares 1,000,000 $ 1.65 10,000 ( 8 ) I By LP ( 8 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other TANG KEVIN 4747 EXECUTIVE DR SUITE 210 SAN DIEGO, CA92121 X X Chief Executive Officer TANG CAPITAL MANAGEMENT LLC 4747 EXECUTIVE DR SUITE 210 SAN DIEGO, CA92121 X Signatures Kevin Tang 06/02/2026 Signature of Reporting Person Date Kevin Tang, Manager 06/02/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The prices reported are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $15.33 to $15.38. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the SEC staff, upon request, all information regarding the number of shares purchased at each price within the ranges set forth in Footnotes 1 and 3 through 6. ( 2 )Tang Capital Partners, LP ("TCP") beneficially owns 7,205,442 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 5,239,039 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 324,814 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 274,811 shares. Kevin Tang is the sole manager of Tang Capital Management, LLC, which is the general partner of TCP and TCPI. Kevin Tang is the sole director and Chief Executive Officer of TCP III and TCP IV, which are indirectly wholly owned by TCP. Mr. Tang has a pecuniary interest in the shares beneficially held by TCP, TCPI, TCP III and TCP IV (collectively, the "Funds"). ( 3 )These shares were purchased in multiple transactions ranging from $15.05 to $15.37. ( 4 )These shares were purchased in multiple transactions ranging from $14.97 to $15.50. ( 5 )These shares were purchased at $15.34. ( 6 )These shares were purchased in multiple transactions ranging from $15.00 to $15.40. ( 7 )Each put option is exercisable only at the option of the counterparty through the expiration date of the put option. ( 8 )Securities are beneficially held by TCP III and TCP IV. The Funds sold 10,000 put options on June 2, 2026. Pursuant to the put option contracts, the Funds have the potential obligation to acquire 1,000,000 common shares of the Issuer at $15 expiring on January 15, 2027.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

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