Grant E. Blouse Form 3 CATALYST BIOSCIENCES / Grant E. Blouse ownership change

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Blouse Grant E.

(Last) (First) (Middle)

C/O CATALYST BIOSCIENCES, INC.

611 GATEWAY BOULEVARD, SUITE 710

(Street)

SOUTH SAN FRANCISCO CA 94080

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
07/12/2021

3. Issuer Name and Ticker or Trading Symbol
CATALYST BIOSCIENCES, INC. [ CBIO ]

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Chief Scientific Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	1,754(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	(2)	07/16/2028	Common Stock	30,000	12.21	D
Stock Option (Right to Buy)	(3)	07/30/2028	Common Stock	10,000	9.68	D
Stock Option (Right to Buy)	(4)	01/24/2029	Common Stock	18,000	7.97	D
Stock Option (Right to Buy)	(5)	01/23/2029	Common Stock	35,000	6.85	D
Stock Option (Right to Buy)	(6)	02/08/2031	Common Stock	38,500	5.89	D
Stock Option (Right to Buy)	(7)	06/16/2031	Common Stock	25,000	4.33	D

Explanation of Responses:

1. Includes shares purchased under the Issuer's 2018 Employee Stock Purchase Plan on various dates between February 11, 2019 and February 9, 2021.

2. 25% of the shares subject to the option vested on the one-year anniversary of the vesting commencement date of July 2, 2018, and 1/48 of the shares subject to the option vested or will vest on each monthly anniversary of the vesting commencement date thereafter.

3. 25% of the shares subject to the option vested on the one-year anniversary of the vesting commencement date of July 1, 2018, and 1/48 of the shares subject to the option vested or will vest on each monthly anniversary of the vesting commencement date thereafter.

4. The option vested or will vest over a four (4) year period on each monthly anniversary of the vesting commencement date of January 24, 2019.

5. The option vested or will vest over a four (4) year period on each monthly anniversary of the vesting commencement date of January 23, 2020.

6. 25% of the shares subject to the option will vest on the one-year anniversary of the vesting commencement date of February 8, 2021, and 1/48 of the shares subject to the option will vest on each monthly anniversary of the vesting commencement date thereafter.

7. 25% of the shares subject to the option will vest on the one-year anniversary of the vesting commencement date of June 16, 2021, and 1/48 of the shares subject to the option will vest on each monthly anniversary of the vesting commencement date thereafter.

Remarks:

	/s/ Faisal Shawwa Attorney-in-Fact for Grant E. Blouse	07/15/2021
	** Signature of Reporting Person	Date
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 5 (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.