SiTime (SITM) exec uses 9,630 shares at $598.81, holds 61,667

Rhea-AI Filing Summary

SITIME Corp (SITM) reported that Executive Vice President, Worldwide Sales and Business Development Lionel Bonnot had 9,630 shares of common stock withheld or delivered on August 20, 2026 to pay the option exercise price or related tax liability at $598.81 per share. After this transaction, he reported holding 61,667 shares directly, including 46,892 shares issuable from unvested restricted stock units and performance-based restricted stock units, of which 18,660 vest over time and 28,232 vest based on specified absolute and relative stock price performance.

Insider Trade Summary

Net Seller: 9,630 shares

Net Sell 1 txn

Insider Bonnot Lionel

Role See Remarks

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock F1	9,630	$598.81	$5.77M

Holdings After Transaction: Common Stock — 61,667 shares (Direct)

Footnotes (1)

1. F1. Includes an aggregate of 46,892 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 18,660 restricted stock units that vest over time, and 28,232 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 withheld or delivered: 9,630 shares Transaction price per share: $598.81 per share Shares owned after transaction: 61,667 shares +3 more

6 metrics

Shares withheld or delivered 9,630 shares Shares used to pay exercise price or tax liability on August 20, 2026

Transaction price per share $598.81 per share Price applied to the 9,630-share exercise-price-or-tax-liability disposition

Shares owned after transaction 61,667 shares Direct common stock holdings reported following the August 20, 2026 transaction

Unvested equity awards 46,892 shares Shares issuable from unvested RSUs and performance-based RSUs included in post-transaction holdings

Time-based RSUs 18,660 RSUs Restricted stock units that vest over time

Performance-based RSUs 28,232 RSUs Performance-based restricted stock units vesting on absolute and relative stock price performance

Key Terms

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

3 terms

restricted stock units financial

"Includes an aggregate of 46,892 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.

absolute and relative price performance financial

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

FAQ

What did SITM executive Lionel Bonnot report in this Form 4 transaction?

Lionel Bonnot reported that 9,630 shares of SiTime common stock were withheld or delivered on August 20, 2026 to pay the exercise price or tax liability, at $598.81 per share, leaving him with 61,667 shares of direct holdings including unvested equity awards.

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

After the August 20, 2026 transaction, Lionel Bonnot reported owning 61,667 shares of SiTime common stock directly, which includes 46,892 shares issuable from unvested restricted stock units and performance-based restricted stock units.

How many SITM unvested restricted stock units does Lionel Bonnot have?

Lionel Bonnot has unvested awards for 46,892 shares of SiTime common stock, consisting of 18,660 restricted stock units that vest over time and 28,232 performance-based restricted stock units that vest based on absolute and relative stock price performance.

What price per share was used for Lionel Bonnot’s SITM tax or exercise payment?

The reported transaction used a price of $598.81 per share for the 9,630 shares withheld or delivered in connection with payment of the option exercise price or related tax liability.

Was Lionel Bonnot’s SITM Form 4 transaction under a Rule 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox was not checked, so this reported transaction was not affirmed as being made pursuant to a Rule 10b5-1 trading plan.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/24/2026 - 08:45 PM Accepted by SEC EDGAR 08/24/2026 - 08:44 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)
08/20/2026

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	08/20/2026		F		9,630	D	$598.81	61,667(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 46,892 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 18,660 restricted stock units that vest over time, and 28,232 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	08/24/2026
	** 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)