SITIME (SITM) executive uses 3,438 shares for equity tax withholding

Rhea-AI Filing Summary

SITIME Corp executive Vincent P. Pangrazio reported a tax-related share disposition. On the transaction date, 3,438 shares of common stock were used to cover tax obligations at a price of $697 per share, a non‑market transaction classified as a tax-withholding disposition. After this event, he held 55,416 shares directly, which include 39,966 shares issuable from unvested restricted stock units and performance-based restricted stock units that may vest over time or based on stock price performance.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Pangrazio Vincent P

Role See Remarks

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	3,438	$697.00	$2.40M

Holdings After Transaction: Common Stock — 55,416 shares (Direct, null)

Footnotes (1)

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Key Figures

Tax-withholding shares: 3,438 shares Tax-withholding price: $697 per share Shares held after transaction: 55,416 shares +3 more

6 metrics

Tax-withholding shares 3,438 shares Shares delivered for tax liability on common stock

Tax-withholding price $697 per share Value used for tax-withholding disposition of common stock

Shares held after transaction 55,416 shares Direct common stock holdings following tax-withholding disposition

Unvested stock units total 39,966 shares Common stock issuable from unvested RSUs and performance units

Time-based RSUs 15,552 units Restricted stock units that vest over time

Performance-based RSUs 24,414 units Units vesting on absolute and relative stock price performance

Key Terms

tax-withholding disposition, restricted stock units, performance-based restricted stock units, performance periods

4 terms

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.

restricted stock units financial

"shares issuable pursuant to 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.

performance-based restricted stock units financial

"performance-based restricted stock units that vest based on certain absolute and relative price performance"

Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.

performance periods financial

"over various performance periods"

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^*

Pangrazio Vincent P

(Last) (First) (Middle)

C/O SITIME CORPORATION

5451 PATRICK HENRY DR.

(Street)

SANTA CLARA CALIFORNIA 95054

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
SITIME Corp [ SITM ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

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	05/20/2026		F		3,438	D	$697	55,416(1)	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. Includes an aggregate of 39,966 shares of common stock issuable pursuant to previously reported restricted stock units and performance-based restricted stock units that have not vested. These unvested units include 15,552 restricted stock units that vest over time, and 24,414 performance-based restricted stock units that vest based on certain absolute and relative price performance of the issuer's common stock over various performance periods.

Remarks:

EVP, Chief Legal Officer & Corporate Secretary.

	Samsheer Ahamad, Attorney-in-fact	05/22/2026
	** 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 did SITM insider Vincent Pangrazio report in this Form 4?

Vincent P. Pangrazio reported a tax-withholding disposition of 3,438 SITIME Corp common shares. These shares were delivered to satisfy tax obligations, not sold in the open market, and the filing also updates his remaining share and unit-based holdings.

How many SITIME (SITM) shares were used for tax withholding?

The Form 4 shows 3,438 common shares were used to cover tax liabilities at $697 per share. This is coded as a tax-withholding disposition, meaning the shares were not part of an open-market sale but satisfied obligations tied to equity compensation.

What are Vincent Pangrazio’s holdings after this SITM transaction?

After the transaction, Vincent P. Pangrazio held 55,416 SITIME shares directly. This figure includes shares underlying unvested restricted stock units and performance-based restricted stock units that may vest over time or based on the company’s stock price performance conditions.

How many unvested stock units does the SITM insider have?

The footnote states he has 39,966 unvested stock units in total. These consist of 15,552 time-based restricted stock units and 24,414 performance-based units that vest depending on absolute and relative stock price performance over various periods.

Was this SITIME Corp Form 4 an open-market sale of shares?

No, the transaction is coded F for tax-withholding disposition. This indicates shares were delivered to pay tax liabilities related to equity awards, rather than being sold in an open market trade initiated as an investment decision.