Signature
/s/ Gladys Chang as Attorney-in-Fact
Stock symbol
BUI
Transactions as of
Jan 31, 2022
Transactions value $
$32,921
Form type
4
Date filed
2/2/2022, 08:52 PM
Next filing
Feb 2, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BUI Common Stock Options Exercise +1.57K 1.57K Jan 31, 2022 Direct F1, F2, F3, F4
transaction BUI Common Stock Disposed to Issuer -$39.1K -1.57K -100% $24.96 0 Jan 31, 2022 Direct F1, F2, F3, F4

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 BUI Phantom Shares Award $72K +2.88K $24.96 2.88K Jan 31, 2022 Common Stock 2.88K Direct F1, F5
transaction BUI Phantom Shares Options Exercise -577 -33.33% 1.15K Jan 31, 2022 Common Stock 577 Direct F1, F2
transaction BUI Phantom Shares Options Exercise -396 -50% 396 Jan 31, 2022 Common Stock 396 Direct F1, F3
transaction BUI Phantom Shares Options Exercise -593 -100% 0 Jan 31, 2022 Common Stock 593 Direct F1, F4
* 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 As previously reported on a Form 4 dated February 2, 2021, the Reporting Person was granted phantom shares on January 29, 2021 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date.
F3 As previously reported on a Form 4 dated February 4, 2020, the Reporting Person was granted phantom shares on January 31, 2020 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date.
F4 As previously reported on a Form 4 dated February 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date.
F5 These phantom shares vest in equal installments on each of the first three anniversaries of the award.