SOUNDTHINKING (SSTI) SVP shares withheld for RSU tax obligations

Rhea-AI Filing Summary

SOUNDTHINKING, INC. senior vice president of sales Arthur Kirk had 1,444 shares of common stock withheld on June 5, 2026 to cover tax obligations tied to the vesting of previously reported restricted stock units. After this tax-withholding disposition, he directly holds 54,778 shares of common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Arthur Kirk

Role SVP, Sales

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	1,444	$7.51	$11K

Holdings After Transaction: Common Stock — 54,778 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares withheld for taxes: 1,444 shares Implied tax withholding value: $7.51 per share Shares held after transaction: 54,778 shares +1 more

4 metrics

Shares withheld for taxes 1,444 shares Tax-withholding disposition on June 5, 2026

Implied tax withholding value $7.51 per share Price used for 1,444 withheld shares

Shares held after transaction 54,778 shares Direct common stock ownership following withholding

Tax-withholding transactions 1 transaction, 1,444 shares Aggregate tax withholding in this Form 4

Key Terms

restricted stock units, tax withholding obligations, withholding of shares, tax-withholding disposition

4 terms

restricted stock units financial

"in connection with the vesting and settlement of previously reported restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"to satisfy the Reporting Person's tax withholding obligations in connection with the vesting"

withholding of shares financial

"Represents the withholding of shares by the Issuer to satisfy the Reporting Person's tax withholding obligations"

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

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Form 4 Insider Transactions: What Each Field Means →

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).

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^*

Arthur Kirk

(Last) (First) (Middle)

C/O SOUNDTHINKING, INC.

39300 CIVIC CENTER DR., SUITE 300

(Street)

FREMONT CALIFORNIA 94538

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Sales

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/05/2026

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

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

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

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	06/05/2026		F(1)		1,444	D	$7.51	54,778	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 the withholding of shares by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settlement of previously reported restricted stock units.

	/s/ Kirk Arthur	06/09/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did SOUNDTHINKING (SSTI) report for Arthur Kirk?

SOUNDTHINKING reported that SVP of Sales Arthur Kirk had 1,444 shares of common stock withheld to satisfy tax obligations from vesting restricted stock units. This was a tax-withholding disposition, not an open-market purchase or sale, and reflects routine equity compensation mechanics.

Was the SSTI insider transaction an open-market sale of shares?

No, the SSTI insider transaction was not an open-market sale. The 1,444 shares were withheld by the company to cover Arthur Kirk’s tax withholding obligations when his restricted stock units vested and settled, according to the filing’s description and accompanying footnote.

How many SOUNDTHINKING (SSTI) shares does Arthur Kirk hold after this transaction?

After the tax-withholding disposition, Arthur Kirk directly holds 54,778 shares of SOUNDTHINKING common stock. This post-transaction balance reflects his remaining equity position following the withholding of 1,444 shares to satisfy tax obligations related to vested restricted stock units.

What does transaction code F mean in the SOUNDTHINKING (SSTI) Form 4?

Transaction code F in the SOUNDTHINKING Form 4 indicates payment of an exercise price or tax liability by delivering securities. Here, it reflects 1,444 shares withheld by the issuer to satisfy Arthur Kirk’s tax withholding obligations from vesting restricted stock units.

What role does Arthur Kirk hold at SOUNDTHINKING (SSTI) in this Form 4?

In this Form 4, Arthur Kirk is identified as an officer of SOUNDTHINKING, serving as senior vice president of sales. The reported transaction shows routine tax withholding related to his equity compensation, not a discretionary trade in the company’s common stock.