David Knight - Aug 6, 2021 Form 4/A - Amendment Insider Report for PROOFPOINT INC (PFPT)

Role: EVP/GM, Security Products
Signature: /s/ David Knight, by Michael Yang, Attorney-in-Fact
Stock symbol: PFPT
Transactions as of: Aug 6, 2021
Transactions value $: $0
Form type: 4/A - Amendment
Date filed: 8/27/2021, 06:58 PM
Date Of Original Report: Aug 19, 2021
Next filing: Aug 31, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	PFPT	Common Stock						16K	Aug 6, 2021	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Includes 249 shares of Common Stock acquired by the Reporting Person on May 14, 2021 pursuant to the Issuer's Employee Stock Purchase Plan.

Remarks:

The gift of shares reported in Form 4 filed on August 19, 2021 ("Form 4") was cancelled prior to its completion. This amendment to Form 4 is filed to report the Reporting Person's holdings after giving effect to the cancellation of such gift.