KENNETH THOMAS MCBRIDE - 09 Jul 2021 Form 4 Insider Report for STAMPS.COM INC

Role: Chairman & CEO, Director
Signature: /s/ Matthew A Lipson, Attorney-in-Fact
Issuer symbol: N/A
Transactions as of: 09 Jul 2021
Net transactions value: -$19,582,917
Form type: 4
Filing time: 13 Jul 2021, 17:47:23 UTC
Next filing: 03 Aug 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STMP	Common	Options Exercise	$10,364,928	+92,544	+8822%	$112.00	93,593	09 Jul 2021	Direct
transaction	STMP	Common	Sale	$14,562,198	-45,000	-48%	$323.60	48,593	09 Jul 2021	Direct	F1
transaction	STMP	Common	Sale	$15,385,647	-47,544	-98%	$323.61	1,049	09 Jul 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	STMP	Stock Option (Common Stock)	Options Exercise	$0	-92,544	-38%	$0.000000	150,000	09 Jul 2021	Common Stock	92,544	$112.00	Direct

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

Explanation of Responses:

Id	Content
F1	This Sale was executed pursuant to a prearranged trading plan compliant with Rule 10b5-1.