SITIME Corp (SITM) EVP Lionel Bonnot sells 1,500 shares, retains large RSU stake

Rhea-AI Filing Summary

SITIME Corp executive Lionel Bonnot, Executive Vice President of Worldwide Sales and Business Development, reported a sale of 1,500 shares of Common Stock on 2026-08-10 at $725.00 per share in an open-market or private transaction. Following this sale, he directly held 71,297 shares, which include 65,813 shares issuable from unvested restricted stock units and performance-based restricted stock units. These unvested units comprise 23,215 time-based RSUs and 42,598 performance-based RSUs that vest based on absolute and relative stock price performance over various periods.

Insider Trade Summary

Net Seller: 1,500 shares

Net Sell 1 txn

Insider Bonnot Lionel

Role See Remarks

Sold 1,500 shs ($1.09M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	1,500	$725.00	$1.09M

Holdings After Transaction: Common Stock — 71,297 shares (Direct)

Footnotes (1)

1. F1. Includes an aggregate of 65,813 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 23,215 restricted stock units that vest over time, and 42,598 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.

Key Figures

Shares sold: 1,500 shares Sale price per share: $725.00 per share Shares held after transaction: 71,297 shares +3 more

6 metrics

Shares sold 1,500 shares Common Stock sale on 2026-08-10

Sale price per share $725.00 per share Price for 1,500 Common Stock shares sold

Shares held after transaction 71,297 shares Direct Common Stock holdings following sale

Unvested equity awards 65,813 shares Shares issuable from unvested RSUs and performance-based RSUs included in holdings

Time-based RSUs 23,215 units Restricted stock units that vest over time

Performance-based RSUs 42,598 units Units that vest based on absolute and relative stock price performance

Key Terms

restricted stock units, performance-based restricted stock units, vest, absolute and relative price performance

4 terms

restricted stock units financial

"Includes an aggregate of 65,813 shares of common stock issuable pursuant to previously reported restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

performance-based restricted stock units financial

"and performance-based restricted stock units that have not vested"

Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.

vest financial

"23,215 restricted stock units that vest over time, and 42,598 performance-based restricted stock units that vest"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

absolute and relative price performance financial

"that vest based on certain absolute and relative price performance of the issuer's common stock"

FAQ

What insider transaction did SITM executive Lionel Bonnot report?

Lionel Bonnot reported a sale of 1,500 shares of SITIME Corp Common Stock on 2026-08-10 at $725.00 per share, described as a sale in an open-market or private transaction.

How many SITM shares does Lionel Bonnot hold after the reported sale?

After the transaction, Lionel Bonnot directly held 71,297 shares of SITIME Corp Common Stock, including shares issuable from unvested restricted stock units and performance-based restricted stock units.

How many unvested SITM stock units are included in Lionel Bonnot’s holdings?

Bonnot’s post-transaction holdings include 65,813 shares issuable from unvested awards: 23,215 time-based restricted stock units and 42,598 performance-based restricted stock units tied to stock price performance.

What type of equity awards does SITM executive Lionel Bonnot hold?

He holds restricted stock units (RSUs) that vest over time and performance-based restricted stock units that vest based on absolute and relative price performance of SITIME Corp’s common stock.

Was Lionel Bonnot’s SITM share sale under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and no footnote states the sale was under a trading plan, so the transaction is not identified there as pursuant to Rule 10b5-1.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/12/2026 - 06:23 PM Accepted by SEC EDGAR 08/12/2026 - 06:23 PM Learn about SEC filing dates

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).

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^*

Bonnot Lionel

(Last) (First) (Middle)

C/O SITIME CORPORATION

5451 PATRICK HENRY DR.

(Street)

SANTA CLARA CALIFORNIA 95054

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	08/10/2026		S		1,500	D	$725	71,297(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 65,813 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 23,215 restricted stock units that vest over time, and 42,598 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, Worldwide Sales and Business Development

	Samsheer Ahamad, Attorney-in-fact	08/12/2026
	** 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.
* Form 4: SEC 1474 (03-26)