[Form 4] SiTime Corporation Insider Trading Activity

Rhea-AI Filing Summary

Form 4 filing for SiTime Corp. (SITM) discloses that Chief Executive Officer and Director Rajesh Vashist executed a single open-market sale (Transaction Code S) on 08 Aug 2025.

• Shares sold: 2,000 common shares
• Sale price: $215.00 per share (approx. $430,000 gross proceeds)
• Direct holdings after sale: 470,763 shares, which include 291,093 unvested RSUs/PBRSUs (88,540 time-based; 202,553 performance-based) as noted in footnote 1.
• Indirect holdings: 1,809 shares in each of two family dynasty trusts and 24,781 shares in Aldebran Constellation LLC, for a total of 28,399 indirectly held shares.
• Total beneficial ownership post-transaction: roughly 499,162 shares.

No derivative securities were reported, and the filing was submitted individually by the reporting person. The form does not state that the trade was executed under a Rule 10b5-1 trading plan.

Positive

• CEO retains a substantial 499,162-share exposure, indicating continued alignment with shareholder interests.
• Large unvested performance-based RSUs (202,553) reinforce incentive to drive stock price performance.

Negative

• Open-market sale by CEO, albeit small, may be interpreted by some investors as a modest negative sentiment signal.
• No 10b5-1 plan disclosure could lead to incremental governance scrutiny over trading intent.

Insights

Securities Analyst

TL;DR: CEO sold only 0.4 % of stake; ownership remains high—signal mild, not material.

Vashist’s 2,000-share sale represents roughly 0.4 % of his total 499 k-share exposure and generated <$0.5 m, a modest amount relative to his remaining position. The sale does not materially alter insider ownership alignment, especially given the large unvested equity incentive package. Absence of a declared 10b5-1 plan may draw scrutiny, yet the small size suggests routine liquidity rather than a bearish signal. I view the impact on the investment thesis as neutral.

Corporate Governance Expert

TL;DR: Insider sale tiny, governance intact; investors should monitor future patterns.

The filing confirms continued significant insider alignment—>7 % of total shares outstanding if company has ~7 m shares. The clear breakdown of unvested RSUs indicates robust performance incentives. While any open-market sale by the CEO can raise questions, the magnitude is immaterial and unlikely to shift governance risk. Repeated or larger sales, however, could change sentiment; therefore, tracking trend data is advised.

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).

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^*

VASHIST RAJESH

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/07/2025

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	08/07/2025		S		2,000	D	$215	470,763(1)	D
Common Stock								1,809	I	See Footnote(2)
Common Stock								1,809	I	See Footnote(3)
Common Stock								24,781	I	See Footnote(4)

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 291,093 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 88,540 restricted stock units that vest over time, and 202,553 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.

2. The reportable securities are owned directly by Aldebran Rajesh Family Dynasty Trust DTD 09/23/2021, of which the Reporting Person is one of the managers and has voting and investment power over the shares.

3. The reportable securities are owned directly by Aldebran Rohini Family Dynasty Trust DTD 09/23/2021, of which the Reporting Person is one of the managers and has voting and investment power over the shares.

4. The reportable securities are owned directly by Aldebran Constellation LLC, of which the Reporting Person is one of the managers and has voting and investment power over the shares.

Remarks:

	Samsheer Ahamad, Attorney-in-fact	08/07/2025
	** 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

How many SiTime (SITM) shares did CEO Rajesh Vashist sell?

He sold 2,000 common shares on 08-Aug-2025 at $215 per share.

What is Vashist's total SiTime share ownership after the sale?

He beneficially owns approximately 499,162 shares (470,763 direct, 28,399 indirect).

Did the Form 4 indicate a Rule 10b5-1 trading plan?

The filing does not state that the transaction was executed under a Rule 10b5-1 plan.

Are there any derivative securities reported in this Form 4?

No. No options, warrants or other derivatives were listed in Table II.

What portion of the CEO's direct holdings is unvested?

Out of 470,763 direct shares, 291,093 are unvested RSUs/PBRSUs subject to time and performance vesting.

What was the total value of the shares sold?

At $215 per share, the sale generated approximately $430,000 in gross proceeds.