SiTime (SITM) officer reports 6,049-share tax withholding, holds 83,145

Rhea-AI Filing Summary

SiTime Corp officer Fariborz Assaderaghi reported a tax-withholding disposition of 6,049 shares of common stock at $697 per share. This was not an open-market sale but shares delivered to cover tax obligations. After the transaction, he directly holds 83,145 shares.

A related footnote states that his holdings include 76,830 unvested restricted stock units and performance-based restricted stock units. These comprise 32,013 time-based units that vest over time and 44,817 performance-based units that vest upon specified absolute and relative stock price performance over various periods.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Assaderaghi Fariborz

Role See Remarks

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	6,049	$697.00	$4.22M

Holdings After Transaction: Common Stock — 83,145 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Tax-withheld shares: 6,049 shares Tax-withholding price: $697 per share Shares held after transaction: 83,145 shares +3 more

6 metrics

Tax-withheld shares 6,049 shares Shares delivered for tax liability at $697 per share

Tax-withholding price $697 per share Value used for 6,049-share tax-withholding disposition

Shares held after transaction 83,145 shares Direct common stock ownership following tax withholding

Total unvested RSUs and PRSUs 76,830 shares Unvested units issuable in common stock per footnote

Time-based RSUs 32,013 units Restricted stock units that vest over time

Performance-based RSUs 44,817 units Units vesting on absolute and relative stock price performance

Key Terms

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

3 terms

restricted stock units financial

"Includes an aggregate of 76,830 shares of common stock issuable pursuant to previously reported restricted stock units and performance-based 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

"These unvested units include 32,013 restricted stock units that vest over time, and 44,817 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.

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition" and transaction_code_description: "Payment of exercise price or tax liability by delivering securities""

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.

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^*

Assaderaghi Fariborz

(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		6,049	D	$697	83,145(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 76,830 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 32,013 restricted stock units that vest over time, and 44,817 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:

Executive Vice President, Engineering & Technology

	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 insider transaction did SiTime (SITM) report for Fariborz Assaderaghi?

SiTime reported that officer Fariborz Assaderaghi had 6,049 shares of common stock withheld at $697 per share to satisfy tax obligations. This Form 4 event reflects a tax-withholding disposition rather than an open-market purchase or sale of SiTime shares.

How many SiTime (SITM) shares does Fariborz Assaderaghi hold after this Form 4?

Following the tax-withholding disposition, Fariborz Assaderaghi directly holds 83,145 shares of SiTime common stock. This figure represents his post-transaction ownership reported in the Form 4 and helps indicate that the 6,049 withheld shares are a relatively small portion of his position.

Was the SiTime (SITM) insider transaction an open-market sale?

No, the transaction was not an open-market sale. The Form 4 shows code F, meaning 6,049 shares were delivered to cover tax liabilities at $697 per share. This type of disposition typically occurs automatically when equity awards vest or are exercised.

What unvested equity awards does the SiTime (SITM) officer have?

The footnote discloses 76,830 unvested shares issuable under restricted stock units and performance-based restricted stock units. These include 32,013 time-based units that vest over time and 44,817 performance-based units tied to specified stock price performance over various periods.

What do the performance-based RSUs for SiTime (SITM) depend on?

The performance-based restricted stock units vest based on certain absolute and relative price performance of SiTime’s common stock. They are measured over various performance periods, meaning vesting depends on the company’s share price meeting defined targets compared with benchmarks or peers.