William E. Siwek - 14 May 2021 Form 4 Insider Report for TPI COMPOSITES, INC (TPIC)

Role: President and CEO
Signature: /s/ Steven G. Fishbach, Attorney-in-Fact
Issuer symbol: TPIC
Transactions as of: 14 May 2021
Net transactions value: -$94,603
Form type: 4
Filing time: 18 May 2021, 20:00:16 UTC
Next filing: 15 Dec 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TPIC	Common Stock	Options Exercise	$0	+4,544	+4.4%	$0.000000	107,476	14 May 2021	Direct
transaction	TPIC	Common Stock	Sale	$94,603	-2,130	-2%	$44.41^*	105,346	18 May 2021	Direct	F1, F2

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	TPIC	Restricted Stock Units	Options Exercise	$0	-4,544	-50%	$0.000000	4,543	14 May 2021	Common Stock	4,544		Direct	F3, F4

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

Explanation of Responses:

Id	Content
F1	Represents the shares sold in a non-discretionary transaction to cover tax withholding obligations in connection with the vesting of 4,544 restricted stock units ("RSUs").
F2	This transaction was executed in multiple trades at prices ranging from $44.36 to $44.51. The price reported above reflects the weighted-average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.
F3	The RSUs award will vest in three equal installments on the first, second and third anniversary of the date of the grant provided, that the Reporting Person continues to provide services to the Issuer through the vesting date. The RSUs do not have an expiration date.
F4	Each RSU represents a contingent right to receive one share of the common stock. All unvested RSUs will automatically expire upon Reporting Person's termination of service from Issuer.