STEM Software President Sells 22,000 Shares at $0.45, Retains 37,458 Holdings

Rhea-AI Filing Summary

Stem's President of Software Division Matthew Tappin reported multiple securities transactions in May-June 2025:

• On May 29, 2025, acquired 2,775 shares through RSU conversion at $0
• On May 30, 2025, disposed of 1,164 shares at $0.451 per share through automatic tax liability sale
• On June 16, 2025, sold 20,823 shares at $0.45 per share under a pre-arranged Rule 10b5-1 trading plan from March 18, 2025

Following these transactions, Tappin holds 37,458 shares directly and 396,784 RSUs. The RSUs were originally granted on July 2, 2021 (11,099 units) with four-year annual vesting beginning May 2022. The May 30 sale was automatically executed to cover tax obligations from RSU settlement, while the June 16 sale was pre-planned under SEC Rule 10b5-1.

Positive

• None.

Negative

• President of Software Division sold 20,823 shares through a planned 10b5-1 sale at $0.45 per share, reducing holdings by 36% from 58,281 to 37,458 shares
• The low selling price of $0.45 per share indicates significant stock price deterioration, as STEM previously traded at much higher levels

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 4 txns

Insider Tappin Matthew

Role President, Software Division

Sold 21,987 shs ($10K)

Approx. gross sale proceeds $10K

Approx. exercise cost $0.00

Type	Security	Shares	Price	Value
Sale	Common Stock, Par Value $0.0001 Per Share	20,823	$0.45	$9K
Sale	Common Stock, Par Value $0.0001 Per Share	1,164	$0.451	$524.96
Exercise	Restricted Stock Unit	2,775	$0.00	$0.00
Exercise	Common Stock, Par Value $0.0001 Per Share	2,775	$0.00	$0.00

Holdings After Transaction: Restricted Stock Unit — 396,784 contracts (Direct); Common Stock, Par Value $0.0001 Per Share — 37,458 shares (Direct)

Footnotes (3)

1. F1. Represents shares of common stock automatically sold to cover the Reporting Person's tax liability in connection with the settlement of RSUs. This "sell to cover" transaction does not represent a discretionary trade by the Reporting Person.
2. F2. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 18, 2025.
3. F3. On July 2, 2021, the Reporting Person was granted 11,099 RSUs vesting in four equal annual installments beginning on May 2022.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many STEM shares did President Matthew Tappin sell on June 16, 2025?

Matthew Tappin, President of Software Division at STEM, sold 20,823 shares at a price of $0.45 per share on June 16, 2025, as part of a pre-planned Rule 10b5-1 trading plan established on March 18, 2025.

What is Matthew Tappin's current position at STEM?

Matthew Tappin serves as the President, Software Division at Stem, Inc. (STEM), as disclosed in the Form 4 filing.

How many STEM shares does Matthew Tappin own after his recent transactions?

Following the reported transactions, Matthew Tappin beneficially owns 37,458 shares of STEM common stock directly, plus 396,784 Restricted Stock Units (RSUs).

What was the purpose of STEM insider Matthew Tappin's May 30, 2025 stock sale?

The May 30, 2025 sale of 1,164 shares was a 'sell to cover' transaction automatically executed to cover Tappin's tax liability in connection with the settlement of RSUs. This was not a discretionary trade by the executive.

What are the vesting details of Matthew Tappin's STEM RSU grant from July 2021?

On July 2, 2021, Tappin was granted 11,099 RSUs that vest in four equal annual installments beginning in May 2022.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 06/18/2025 - 07:14 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Tappin Matthew

(Last) (First) (Middle)

1400 POST OAK BOULEVARD, SUITE 560

(Street)

HOUSTON TX 77056

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
STEM, INC. [ STEM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President, Software Division

3. Date of Earliest Transaction (Month/Day/Year)
05/29/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, Par Value $0.0001 Per Share	05/29/2025		M		2,775	A	$0	59,445	D
Common Stock, Par Value $0.0001 Per Share	05/30/2025		S(1)		1,164	D	$0.451	58,281	D
Common Stock, Par Value $0.0001 Per Share	06/16/2025		S(2)		20,823	D	$0.45	37,458	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	$0	05/29/2025		M			2,775	(3)	(3)	Common Stock, Par Value $0.0001 Per Share	2,775	$0	396,784	D

Explanation of Responses:

1. Represents shares of common stock automatically sold to cover the Reporting Person's tax liability in connection with the settlement of RSUs. This "sell to cover" transaction does not represent a discretionary trade by the Reporting Person.

2. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 18, 2025.

3. On July 2, 2021, the Reporting Person was granted 11,099 RSUs vesting in four equal annual installments beginning on May 2022.

	/s/ Saul R. Laureles, attorney-in-fact	06/18/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.