[Form 4] SiTime Corporation Insider Trading Activity

Rhea-AI Filing Summary

Vincent P. Pangrazio, EVP, Chief Legal Officer & Corporate Secretary of SiTime Corporation (SITM), reported a sale of 1,778 shares of common stock on 08/20/2025 at a reported price of $221.60 per share. Following the sale, he beneficially owns 59,055 shares, which includes 42,868 unvested units composed of 17,287 time-based restricted stock units and 25,581 performance-based restricted stock units that vest subject to time and specified price performance conditions. The Form 4 was signed by an attorney-in-fact on 08/22/2025.

Positive

• Transparent disclosure of an officer sale and post-transaction holdings via a timely Form 4 filing
• Significant remaining ownership with 59,055 shares beneficially owned after the sale
• Substantial alignment with shareholders through 42,868 unvested RSUs, including 25,581 performance-based units

Negative

• Reduction in direct holdings due to the sale of 1,778 shares on 08/20/2025

Insights

Securities Analyst

TL;DR: Insider sale of 1,778 shares reduces holdings but owner retains significant equity, much of it unvested.

The reported transaction is a straightforward open-market sale of 1,778 shares at $221.60 on 08/20/2025. Post-transaction beneficial ownership is 59,055 shares, but a material portion (42,868 shares) remains unvested under time- and performance-based awards, which limits immediate liquidity of those shares. The filing is routine under Section 16 and provides transparent disclosure of the officer's holdings and the composition of unvested awards. For investors, this transaction alone is not a material change to control but is a useful disclosure of insider activity and outstanding equity incentives.

Compensation & Governance Specialist

TL;DR: Transaction reflects routine insider sale while long-term incentives remain tied to performance and vesting.

The Form 4 clarifies that of the 59,055 shares beneficially owned after the sale, 42,868 are linked to restricted stock units and performance-based RSUs. The presence of 25,581 performance-based units indicates continued alignment of the officer's compensation with stock-price and relative performance metrics. This structure suggests retention incentives despite the small disposition, and the disclosure meets governance best practices for insider 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
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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 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)
08/20/2025

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	08/20/2025		F		1,778	D	$221.6	59,055(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 42,868 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 17,287 restricted stock units that vest over time, and 25,581 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	08/22/2025
	** 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 Vincent Pangrazio report on Form 4?

The Form 4 reports that Vincent P. Pangrazio sold 1,778 shares of SiTime common stock on 08/20/2025 at $221.60 per share and now beneficially owns 59,055 shares.

How many unvested restricted stock units does the reporting person hold?

The filing states an aggregate of 42,868 unvested units: 17,287 time-based RSUs and 25,581 performance-based RSUs.

What is the role of the reporting person at SITM?

The filing identifies the reporting person as EVP, Chief Legal Officer & Corporate Secretary.

When was the Form 4 signed and by whom?

The signature on the Form 4 was executed by an attorney-in-fact, Samsheer Ahamad, on 08/22/2025.

Does the Form 4 disclose how performance RSUs vest?

The Form 4 states that 25,581 performance-based restricted stock units vest based on certain absolute and relative price performance of the issuer's common stock over various performance periods.