Daniel J. O'Connor - Oct 27, 2023 Form 4 Insider Report for Ambrx Biopharma, Inc. (AMAM)

Role
President and CEO, Director
Signature
/s/ Sonja Nelson, Attorney-in-Fact for Daniel J. O'Connor
Stock symbol
AMAM
Transactions as of
Oct 27, 2023
Transactions value $
-$491,118
Form type
4
Date filed
10/31/2023, 05:00 PM
Previous filing
Jul 7, 2023
Next filing
Dec 11, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMAM Common Stock Sale -$491K -50K -12.73% $9.82 343K Oct 27, 2023 Direct F1, F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Reflects an adjustment in connection with the holding company reorganization resulting in Ambrx Biopharma, Inc. ("Ambrx") becoming a Delaware corporation (the "Domestication"). Pursuant to the transactions contemplated by the Domestication, each Ordinary Share of the previous holding company (Ambrx Biopharma Inc., a Cayman Islands company) converted into one-seventh (1/7th) of a share of common stock of Ambrx. Represents Restricted Stock Units ("RSUs") payable in Ambrx common stock granted to the Reporting Person as previously disclosed.
F2 The sale reported on this Form 4 represents shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale is mandated by Ambrx's election to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The sale is being made pursuant to the Reporting Person's effective 10b5-1 plan.
F3 The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.70 to $9.99. The Reporting Person undertakes to provide to Ambrx, any security holder of Ambrx or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.