Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * MACK RICHARD L	2. Date of Event Requiring Statement (MM/DD/YYYY) 6/15/2023	3. Issuer Name and Ticker or Trading Symbol Benson Hill, Inc. [BHIL]
(Last)        (First)        (Middle) C/O BENSON HILL, INC., 1001 NORTH WARSON RD	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                          _____ 10% Owner _____ Officer (give title below)        _____ Other (specify below)
(Street) ST. LOUIS, MO 63132       (City)              (State)              (Zip)	5. If Amendment, Date Original Filed(MM/DD/YYYY)	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)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: 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
Restricted Stock Units	(1)	6/15/2033	Common Stock, $0.0001 par value per share	220573	(2)	D

Explanation of Responses:
(1)	Granted on June 15, 2023 under the Issuer's 2021 Omnibus Incentive Plan. The restricted stock units vest in equal yearly installments over two years until fully vested on June 15, 2025.
(2)	Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MACK RICHARD L C/O BENSON HILL, INC. 1001 NORTH WARSON RD ST. LOUIS, MO 63132	X

Signatures
/s/ Richard Mack		6/20/2023
**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.
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