Stem (STEM) executive auto-sells shares to cover RSU tax bill

Rhea-AI Filing Summary

STEM, INC. President, Software Products Matthew Tappin reported an automatic tax-withholding share disposition. On February 19, 2026, 522 shares of common stock were sold at $11.30 per share to cover taxes from a restricted stock unit settlement. After this "sell to cover" transaction, Tappin directly owned 2,603 common shares. The footnote explains this was not a discretionary trade but a required sale to satisfy tax obligations tied to previously reported RSU vesting on February 15, 2026.

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

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

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 Products

3. Date of Earliest Transaction (Month/Day/Year)
02/19/2026

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	02/19/2026		F(1)		522	D	$11.3	2,603	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

Explanation of Responses:

1. Represents shares of common stock automatically sold to cover the reporting person's tax liability in connection with the previously reported settlement of restricted stock units on February 15, 2026. This "sell to cover" transaction does not represent a discretionary trade by the reporting person.

Remarks:

	/s/ Sarah Dunn, attorney-in-fact	02/19/2026
	** 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.

FAQ

What did STEM (STEM) executive Matthew Tappin report in this Form 4?

Matthew Tappin reported an automatic disposition of STEM common stock to cover tax obligations. Specifically, 522 shares were sold in a tax-withholding transaction related to a previously reported restricted stock unit settlement, rather than a discretionary open-market trade initiated by the executive.

How many STEM shares were sold in Matthew Tappin’s tax-withholding transaction?

The filing shows 522 STEM common shares were sold in the tax-withholding transaction. These shares were automatically sold to cover the reporting person’s tax liability arising from the settlement of restricted stock units that vested earlier in February 2026.

At what price were the STEM shares disposed of in this Form 4 filing?

The 522 STEM common shares were disposed of at a price of $11.30 per share. This price applies to the automatic sale used to satisfy tax liabilities arising from the executive’s previously reported restricted stock unit settlement in mid-February 2026.

How many STEM shares does Matthew Tappin own after this Form 4 transaction?

After the tax-withholding sale, Matthew Tappin directly owns 2,603 STEM common shares. This post-transaction holding reflects his remaining direct ownership following the automatic disposition of 522 shares to cover tax obligations from restricted stock unit vesting.

Was Matthew Tappin’s STEM share sale a discretionary trade?

No, the sale was not discretionary. The footnote explains the 522 shares were automatically sold in a "sell to cover" transaction, solely to pay the reporting person’s tax liability from a previously reported restricted stock unit settlement on February 15, 2026.

What is the nature of the Form 4 transaction reported by STEM’s President, Software Products?

The Form 4 reports a tax-withholding disposition of common stock, coded as transaction type F. Shares were sold automatically to cover income tax obligations arising from restricted stock units, rather than reflecting an elective buy or sell decision by the executive in the open market.