Karl Watson - Dec 21, 2021 Form 4 Insider Report for Forterra, Inc. (FRTA)

Role: Chief Executive Officer, Director
Signature: /s/ Lori M. Browne, attorney-in-fact for Karl Watson
Stock symbol: FRTA
Transactions as of: Dec 21, 2021
Transactions value $: -$1,895,682
Form type: 4
Date filed: 12/22/2021, 04:03 PM
Next filing: Feb 11, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FRTA	Common Stock	Options Exercise	$0	+203K	+18.86%	$0.00	1.28M	Dec 21, 2021	Direct
transaction	FRTA	Common Stock	Tax liability	-$1.9M	-79.7K	-6.24%	$23.79	1.2M	Dec 21, 2021	Direct	F1

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	FRTA	Restricted Stock Unit	Options Exercise	$0	-203K	-100%	$0.00^*	0	Dec 21, 2021	Common Stock	203K		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares withheld on vesting of performance-based restricted stock units (PSUs) to cover applicable withholding taxes, with the number of shares withheld based on the December 21, 2021 closing price.
F2	Each PSU represents the right to receive, at settlement, one share of Forterra, Inc. common stock.
F3	This number represents the remaining 75% of the tranche of PSUs that vested one year after attainment of the stock price hurdle of $18.00 by a 20-day volume weighted average calculation.