Mark William Triplett - Apr 12, 2022 Form 4 Insider Report for STEM, INC. (STEM)

Role: Chief Operating Officer
Signature: /s/ William Bush, Attorney-in-Fact
Stock symbol: STEM
Transactions as of: Apr 12, 2022
Transactions value $: -$956,906
Form type: 4
Date filed: 4/14/2022, 08:27 PM
Previous filing: Mar 17, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STEM	Common Stock, Par Value $0.0001 Per Share	Options Exercise	$271K	+39.8K	+43.48%	$6.81	131K	Apr 12, 2022	Direct
transaction	STEM	Common Stock, Par Value $0.0001 Per Share	Tax liability	-$333K	-33.5K	-25.51%	$9.92	97.9K	Apr 12, 2022	Direct	F1
transaction	STEM	Common Stock, Par Value $0.0001 Per Share	Options Exercise	$7.14K	+1.05K	+1.07%	$6.81	99K	Apr 12, 2022	Direct
transaction	STEM	Common Stock, Par Value $0.0001 Per Share	Tax liability	-$8.76K	-883	-0.89%	$9.92	98.1K	Apr 12, 2022	Direct	F1
transaction	STEM	Common Stock, Par Value $0.0001 Per Share	Options Exercise	$535K	+236K	+240.23%	$2.27	334K	Apr 12, 2022	Direct
transaction	STEM	Common Stock, Par Value $0.0001 Per Share	Tax liability	-$1.43M	-144K	-43.15%	$9.92	190K	Apr 12, 2022	Direct	F1
transaction	STEM	Common Stock, Par Value $0.0001 Per Share	Options Exercise	$396K	+175K	+92.04%	$2.27	364K	Apr 12, 2022	Direct
transaction	STEM	Common Stock, Par Value $0.0001 Per Share	Tax liability	-$396K	-40.4K	-11.09%	$9.81	324K	Apr 12, 2022	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	STEM	Stock Option (Right to Buy)	Options Exercise	$0	-39.8K	-100%	$0.00^*	0	Apr 12, 2022	Common Stock, Par Value $0.0001 Per Share	39.8K	$6.81	Direct
transaction	STEM	Stock Option (Right to Buy)	Options Exercise	$0	-1.05K	-24.98%	$0.00	3.15K	Apr 12, 2022	Common Stock, Par Value $0.0001 Per Share	1.05K	$6.81	Direct	F2
transaction	STEM	Stock Option (Right to Buy)	Options Exercise	$0	-236K	-57.44%	$0.00	175K	Apr 12, 2022	Common Stock, Par Value $0.0001 Per Share	236K	$2.27	Direct
transaction	STEM	Stock Option (Right to Buy)	Options Exercise	$0	-175K	-100%	$0.00^*	0	Apr 12, 2022	Common Stock, Par Value $0.0001 Per Share	175K	$2.27	Direct

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

Explanation of Responses:

Id	Content
F1	Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the net settlement of stock option awards, and does not represent a sale by the reporting person.
F2	25% of the shares underlying the option vest on the first anniversary date, and the remaining shares underlying the option vest in 36 equal monthly installments thereafter, subject to the Reporting Person's continuous employment with the Issuer on each such date.