Signature
/s/ Gladys Chang as Attorney-in-Fact
Issuer symbol
BST
Transactions as of
31 Jan 2023
Net transactions value
+$21,584
Form type
4
Filing time
02 Feb 2023, 17:07:40 UTC
Previous filing
28 Sep 2022

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction BST Phantom Shares Award $21,584 +651 $33.17 651 31 Jan 2023 Common Stock 651 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash.
F2 These phantom shares vest in equal installments on each of the first three anniversaries of the award.