[Form 4] SITIME Corp Insider Trading Activity

Rhea-AI Filing Summary

SiTime Corporation (SITM) filed a Form 4 reporting an insider equity transaction. A company officer classified as an officer (SVP Finance and Chief Accounting Officer) reported a transaction in common stock on 11/20/2025. The filing shows 1,366 shares of common stock disposed of under transaction code "F" at a price of $252.76 per share, typically used for shares withheld to cover taxes.

After this transaction, the officer beneficially owns 55,711 shares of SiTime common stock. This amount includes 24,544 shares underlying unvested restricted stock units and performance-based restricted stock units, consisting of 14,338 time-based RSUs and 10,206 performance-based RSUs that vest based on absolute and relative stock price performance over various periods.

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

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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^*

Ahamad Samsheer

(Last) (First) (Middle)

5451 PATRICK HENRY DR.

(Street)

SANTA CLARA CA 95054

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
11/20/2025

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	11/20/2025		F		1,366	D	$252.76	55,711(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 24,544 shares of common stock issuable pursuant to previously reported restricted stock units and performance-based restricted stock units and that have not vested. These unvested units include 14,338 restricted stock units that vest over time, and 10,206 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:

SVP Finance and Chief Accounting Officer

	Samsheer Ahamad, as Attorney-in-Fact	11/24/2025
	** 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.

FAQ

What insider transaction did SiTime (SITM) report in this Form 4?

The Form 4 reports that an officer of SiTime Corporation disposed of 1,366 shares of common stock on 11/20/2025 under transaction code "F" at a price of $252.76 per share.

Who is the reporting person in the SiTime (SITM) Form 4 filing and what is their role?

The reporting person is an officer of SiTime, serving as SVP Finance and Chief Accounting Officer, as noted in the remarks section.

How many SiTime (SITM) shares does the officer own after the reported transaction?

Following the reported transaction, the officer beneficially owns 55,711 shares of SiTime common stock.

What restricted stock units are included in the SiTime (SITM) officer’s holdings?

The filing states that holdings include 24,544 shares issuable from unvested awards: 14,338 time-based restricted stock units and 10,206 performance-based restricted stock units tied to stock price performance.

What does transaction code "F" mean in the SiTime (SITM) Form 4?

Transaction code "F" indicates a disposition of shares to satisfy obligations such as tax withholding in connection with the vesting of equity awards.

Is this SiTime (SITM) Form 4 filed by one person or a group?

The document indicates that the Form 4 is filed by one reporting person, not by a group.