Rita Wing Nga Chiu - 29 Sep 2024 Form 4 Insider Report for Benson Hill, Inc. (BHILQ)

Footnote F1

On July 18, 2024, the Issuer effected a 1-for-35 reverse stock split (the "Reverse Stock Split"). The amount of securities reported on this Form 4 have been adjusted to reflect the Reverse Stock Split.

Footnote F2

43,899 shares, as adjusted for the Reverse Stock Split (the "Earnout Shares"), were previously held in an escrow account and were subject to an earn-out contingency until the achievement no later than September 29, 2024 (the "Earnout Deadline") of certain stock price targets pursuant to the Issuer's business combination on September 29, 2021. On the date of the Earnout Deadline, all of the Earnout Shares were automatically released by the escrow agent to the Issuer for cancellation, pursuant to an escrow agreement entered into on September 29, 2021, because none of the stock price targets were achieved and, accordingly, none of the Earnout Shares vested.

Footnote F3

Represents (a) 132,857 shares of Common Stock, as adjusted for the Reverse Stock Split, held by Argonautic Ventures Master SPC for and on behalf of Argonautic Vertical Series Benson Hill SS Fund III SP ("Argonautic SS Fund III") and (b) 281,914 shares of Common Stock, as adjusted for the Reverse Stock Split, held by Argonautic Ventures Master SPC for and on behalf of Argonautic Vertical Series Benson Hill SS Funds II SP ("Argonautic SS Fund II"). Chiu Wing Nga Rita holds a direct or indirect interest in, and acts as a director of, Argonautic SS Fund II and Argonautic SS Fund III, which are investment funds.

Footnote F4

Chiu Wing Nga Rita disclaims beneficial ownership of these securities except to the extent of any pecuniary interest she may have therein, directly or indirectly.