[Form 4] SiTime Corporation Insider Trading Activity

Rhea-AI Filing Summary

Fariborz Assaderaghi, Executive Vice President, Engineering & Technology at SiTime Corporation (SITM), reported the sale of 3,000 shares of common stock on 09/02/2025 at a weighted average price of $234 per share (prices ranged from $232.25 to $235.75). After the sale he beneficially owned 93,433 shares, which include 87,670 shares issuable upon previously reported restricted stock units and performance-based restricted stock units that have not vested (40,650 time-vesting RSUs and 47,020 performance-based RSUs tied to price performance). The filer indicated the transaction was made pursuant to a 10b5-1 plan and the Form 4 was signed by an attorney-in-fact on 09/03/2025.

Positive

• Transaction disclosed under a 10b5-1 plan, indicating prearranged trading consistent with insider trading compliance
• Detailed disclosure of unvested equity, specifying 40,650 time-vesting RSUs and 47,020 performance-based RSUs

Negative

• Insider sold 3,000 shares, which modestly reduces direct beneficial ownership
• Majority of reported holdings are unvested, representing potential future dilution if and when awards vest

Insights

Corporate Governance Expert

TL;DR: Officer disclosed a routine planned sale under a 10b5-1 plan and retains substantial unvested equity, showing alignment via long-term awards.

The Form 4 shows a small open-market sale of 3,000 shares executed at a weighted average price of $234 under a 10b5-1 plan, which supports procedural compliance with insider trading rules. The reporting person continues to hold a meaningful aggregate position of 93,433 shares, largely comprised of unvested RSUs and performance-based RSUs, preserving long-term incentive alignment with shareholders. No additional governance issues or departures are disclosed in the filing.

Securities Analyst

TL;DR: Minor insider sale, disclosed properly; unvested performance awards represent the bulk of reported holdings.

The transaction size (3,000 shares) is modest relative to the total beneficial ownership reported and appears to be a disclosed, planned sale. The filing quantifies unvested awards: 40,650 time-vesting RSUs and 47,020 performance-based RSUs, which could dilute outstanding shares when they vest but are currently unexercised. The weighted-average sale price range is documented, and the filer commits to provide breakdowns on request, showing transparency in reporting.

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^*

Assaderaghi Fariborz

(Last) (First) (Middle)

C/O SITIME CORPORATION

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)
09/02/2025

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	09/02/2025		S		3,000	D	$234(1)	93,433(2)	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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $232.25 to $235.75 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

2. Includes an aggregate of 87,670 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 40,650 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:

Executive Vice President, Engineering & Technology

	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 did SiTime (SITM) insider Fariborz Assaderaghi sell on 09/02/2025?

He sold 3,000 shares of SiTime common stock at a weighted average price of $234 per share (range $232.25 to $235.75).

How many SiTime shares does Assaderaghi beneficially own after the reported sale?

He beneficially owned 93,433 shares following the reported transaction, per the Form 4.

How many unvested RSUs and performance RSUs does the filing disclose?

The filing discloses 87,670 unvested units in total: 40,650 time-vesting RSUs and 47,020 performance-based RSUs.

Was the insider sale part of a trading plan?

Yes, the filer checked the box indicating the transaction was made pursuant to a 10b5-1 trading plan.

Who signed the Form 4 and when?

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