[Form 4] SiTime Corporation Insider Trading Activity

Rhea-AI Filing Summary

Fariborz Assaderaghi, Executive Vice President, Engineering & Technology at SiTime Corporation (SITM), reported a sale of 4,886 shares of common stock on 08/20/2025 at $221.60 per share. After the transaction he beneficially owned 96,433 shares, which include 87,670 unvested units: 40,650 time‑based restricted stock units and 47,020 performance‑based restricted stock units that vest subject to price performance conditions.

The Form 4 indicates the sale was a non‑derivative disposition and the reporting relationship is an officer (Executive Vice President). The filing discloses the breakdown between vested shares sold and remaining direct beneficial ownership, with a large portion of total reported holdings represented by unvested awards tied to future vesting and performance criteria.

Insights

Securities Analyst

TL;DR: Insider sold a small portion of holdings; majority of reported interest remains tied to unvested, performance‑linked awards.

The 4,886‑share sale at $221.60 reduces reported direct ownership to 96,433 shares, but ~91% of that figure reflects unvested RSUs and performance RSUs (87,670 units). From a market‑impact perspective this is routine insider liquidity rather than a material shift in alignment with shareholders because most economic exposure remains governed by unvested and performance‑based awards. Disclosure is complete on the vesting composition, allowing investors to evaluate potential future dilution and incentive alignment.

Corporate Governance Expert

TL;DR: Transaction appears routine; significant portion of reported holdings remains subject to vesting and performance conditions.

The Form 4 clearly identifies the reporting person as an officer and discloses both time‑based and performance‑based unvested units (40,650 and 47,020 respectively). This structure underscores ongoing incentive alignment: substantial equity exposure is conditional on continued service and stock performance. The documented sale is a non‑derivative disposition and the filing meets Section 16 transparency expectations; there is no additional governance action disclosed.

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

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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^*

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)
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		4,886	D	$221.6	96,433(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 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	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).
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