[Form 4] SiTime Corporation Insider Trading Activity

Rhea-AI Filing Summary

Sevalia Piyush B, EVP Marketing of SiTime Corporation (SITM), reported a sale of 2,000 shares of common stock on 08/29/2025 at $242.66 per share. After the transaction, the reporting person beneficially owned 80,813 shares, which include 76,146 shares issuable under previously reported restricted stock units and performance-based restricted stock units that have not vested. The unvested units comprise 29,126 time-based restricted stock units and 47,020 performance-based restricted stock units subject to price performance conditions. The Form 4 indicates the sale was reported under a plan and was signed by an attorney-in-fact on 09/03/2025.

Positive

• Transaction reported under a written plan (10b5-1), indicating the sale was preplanned and may reduce questions about opportunistic insider trading
• Majority of beneficial ownership is unvested (76,146 RSUs/PSUs), aligning the reporting person’s economic interest with future company performance
• Filing executed and signed by an attorney-in-fact, demonstrating compliance with Section 16 reporting requirements

Negative

• Insider disposition of shares (2,000 shares sold), which reduces immediate insider stake
• 47,020 performance-based units are subject to price performance conditions and may not vest if targets are not met

Insights

Securities Analyst

TL;DR: Insider sold a small portion of holdings under a reported plan; no immediate material change to ownership.

The sale of 2,000 shares at $242.66 reduced the reporting person's beneficial holdings to 80,813 shares. A significant portion of that total (76,146 shares) remains tied to unvested restricted stock units and performance-based restricted stock units, indicating most economic interest is not immediately liquid. The Form 4 also indicates the transaction was made pursuant to a written plan consistent with Rule 10b5-1, which typically signals preplanned execution rather than opportunistic trading. Overall, this disclosure is routine and provides transparency on insider activity.

Corporate Governance Expert

TL;DR: Filing shows compliance with reporting rules and continued concentration of holdings in unvested equity awards.

The reporting person is identified as an officer (EVP, Marketing) and the filing discloses both time-based and performance-based unvested awards totaling 76,146 shares, which keeps substantial alignment with shareholder interests through vesting conditions. The checked indication that the transaction was pursuant to a written plan supports procedural compliance. The disclosure was executed via attorney-in-fact, reflecting appropriate administrative filing practices.

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).

X

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^*

Sevalia Piyush B

(Last) (First) (Middle)

C/O SITIME CORPORATION

5451 PATRICK HENRY DRIVE

(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)
08/29/2025

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	08/29/2025		S		2,000	D	$242.66	80,813(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 76,146 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 29,126 restricted stock units that vest over time, and 47,020 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, Marketing

	Samsheer Ahamad, Attorney-in-fact	09/03/2025
	** 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 on this Form 4?

The filing reports that Sevalia Piyush B sold 2,000 shares of common stock on 08/29/2025 at $242.66 per share.

How many shares does the reporting person beneficially own after the sale?

After the reported transaction the reporting person beneficially owns 80,813 shares in total.

How many unvested restricted stock units and performance units are included in the holdings?

The filing states 76,146 unvested units consisting of 29,126 time-based RSUs and 47,020 performance-based RSUs.

Was the sale executed under a 10b5-1 plan for SITM?

Yes, the Form 4 indicates the transaction was made pursuant to a contract, instruction or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Who signed the Form 4 for this insider filing?

The Form 4 was signed by Samsheer Ahamad, Attorney-in-fact on 09/03/2025.