Sec Form 4 Filing - FRIEDBERG ALBERT @ VACCINEX, INC. - 2024-09-18

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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person FRIEDBERG ALBERT 2. Issuer Name and Ticker or Trading Symbol VACCINEX, INC. [ VCNX] 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) 220 BAY STREET, SUITE 600 3. Date of Earliest Transaction (MM/DD/YY) 09/18/2024 (Street) TORONTO, A6M5J 2W4 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 Stock 2,094 D Common Stock 180 I By Pan Atlantic Holdings Ltd. ( 1 ) Common Stock 16,724 I By Friedberg Global-Macro Hedge Fund Ltd. ( 2 ) Common Stock 09/18/2024 M 214,286 A $ 5.636 ( 4 ) 994,910 I By FCMI Parent Co. ( 3 ) Common Stock 09/18/2024 M 25,723 A $ 5.636 ( 5 ) 1,020,633 I By FCMI Parent Co. ( 3 )

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 Warrant (Right to Buy) $ 5.636 ( 4 ) 09/18/2024 M 214,286 10/03/2023 10/03/2028 Common Stock 214,286 $ 0 0 I By FCMI Parent Co. ( 3 ) Warrant (Right to Buy) $ 0.001 ( 5 ) 09/18/2024 M 25,723 02/08/2024 02/08/2029 Common Stock 25,723 $ 0 92,504 I By FCMI Parent Co. ( 3 ) Warrant (Right to Buy) $ 5.636 09/18/2024 A 653,210 09/18/2024 09/18/2029 Common Stock 653,210 $ 0.125 653,210 I By FCMI Parent Co. ( 3 ) Warrant (Right to Buy) $ 0.001 ( 6 ) 03/28/2024 03/28/2029 Common Stock 102,960 102,960 I By FCMI Parent Co. ( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other FRIEDBERG ALBERT 220 BAY STREET SUITE 600 TORONTO, A6M5J 2W4 X X FCMI Parent Co. 220 BAY STREET SUITE 600 TORONTO, A6M5J 2W4 X Signatures /s/ Jill Sanchez, Attorney-in-Fact for Albert D. Friedberg 09/20/2024 Signature of Reporting Person Date FCMI Parent Co. By: /s/ Dan Scheiner, Vice President 09/20/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Mr. Friedberg is the majority owner of Pan Atlantic Holdings Ltd. and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. ( 2 )Mr. Friedberg possesses voting and dispositive power over the reported securities and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. ( 3 )Mr. Friedberg is the majority owner, a director and the president of FCMI Parent Co. ("FCMI") and disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. ( 4 )This warrant was originally reported on Form 4 with an exercise price of $14.00. Pursuant to a warrant inducement agreement by and between the issuer and FCMI dated September 17, 2024 (the "Warrant Inducement Agreement"), the exercise price of this warrant was adjusted to $5.636. ( 5 )This warrant was originally reported on Form 4 with an exercise price of $14.00. Pursuant to the Warrant Inducement Agreement, the exercise price of this warrant was adjusted to $5.636. FCMI partially exercised this warrant for 25,723 shares at an exercise price of $5.636 per share and pre-funded the remaining 92,504 shares at a price of $5.635. The exercise price for the remaining 92,504 shares underlying this warrant was subsequently adjusted to $0.001. ( 6 )This warrant was originally reported on Form 4 with an exercise price of $7.64. Pursuant to the Warrant Inducement Agreement, the exercise price of this warrant was adjusted to $5.636. FCMI pre-funded 102,960 shares underlying this warrant at a price of $5.634 per share and the exercise price was subsequently adjusted to $0.001.

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.