Sec Form 4 Filing - Lanfear Dennis M @ Coherus BioSciences, Inc. - 2023-11-22

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 Lanfear Dennis M 2. Issuer Name and Ticker or Trading Symbol Coherus BioSciences, Inc. [ CHRS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) C/O COHERUS BIOSCIENCES, INC., 333 TWIN DOLPHIN DRIVE, SUITE 600 3. Date of Earliest Transaction (MM/DD/YY) 11/22/2023 (Street) REDWOOD CITY, CA94065 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 Stock 11/22/2023 M( 1 ) 41,000 A $ 1.417 695,853 D Common Stock 11/22/2023 M( 2 ) 258,940 A $ 1.417 954,793 D Common Stock 11/22/2023 S( 2 ) 223,100 D $ 2.016 ( 3 ) 731,693 D Common Stock 432,684 I By Trust ( 4 ) Common Stock 86,965 I By LLC ( 5 )

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 Stock Option (Right to Buy) $ 1.417 11/22/2023 M 299,940 ( 6 ) 11/22/2023 Common Stock 299,940 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Lanfear Dennis M C/O COHERUS BIOSCIENCES, INC. 333 TWIN DOLPHIN DRIVE, SUITE 600 REDWOOD CITY, CA94065 X President & CEO Signatures /s/ McDavid Stilwell, as Attorney-in-Fact for Dennis M. Lanfear 11/24/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )For part of the stock option, this represents a cash exercise-and-hold transaction where cash was paid by the Reporting Person for the exercise price and anticipated taxes. ( 2 )For the remaining part of the stock option, this represents a cashless exercise-and-hold transaction where only enough shares were sold to cover the exercise price, anticipated taxes and broker's fee, and the remaining shares were held by the Reporting Person. ( 3 )This transaction was executed in multiple trades at prices ranging from $2.000 to $2.055. The price reported above reflects the weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. ( 4 )These shares are held by the Lanfear Revocable Trust, dated January 27, 2004, as restated, of which Reporting Person is a trustee. ( 5 )These shares are held by Lanfear Capital Advisors, LLC of which Reporting Person is President. ( 6 )The underlying shares subject to the option vested and became exercisable in successive, equal monthly installments over four years measured from July 20, 2013.

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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