[144] SiTime Corporation SEC Filing

Rhea-AI Filing Summary

Form 144 notice for SiTime Corporation (SITM): a holder plans to sell 2,430 shares of common stock through Morgan Stanley Smith Barney on 09/10/2025 on NASDAQ. The filing lists an aggregate market value of $600,732.45 for the proposed sale and reports 26,003,972 shares outstanding for the issuer, implying the proposed sale is a small fraction of total shares. The shares were acquired as restricted stock units (RSUs) on 02/20/2024 from the issuer and were not purchased for cash. The filer also disclosed prior 10b5-1 sales by the same person: 1,990 shares sold on 08/22/2025 for $444,765.00. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information and references reliance on a trading plan if applicable.

Positive

• Securities were acquired as RSUs, indicating they were compensation rather than purchased with borrowed funds
• Prior 10b5-1 sales disclosed, suggesting the seller has used structured trading plans consistent with compliance practices
• Sale executed through a major broker (Morgan Stanley Smith Barney), indicating standard market channel use

Negative

• Insider has recently sold shares (1,990 shares on 08/22/2025), which could be perceived as insider liquidity though not necessarily material

Insights

Securities Analyst

TL;DR: Routine insider sale of RSUs using broker channels; sale size is immaterial relative to outstanding shares.

The filing documents a proposed sale of 2,430 common shares valued at $600,732.45 and prior 10b5-1 sales of 1,990 shares for $444,765.00. These amounts come from RSUs granted 02/20/2024 and were not purchased for cash, indicating compensation-origin shares being liquidated. Relative to 26,003,972 shares outstanding, the proposed sale represents a very small percentage of float, suggesting limited direct impact on capital structure or share supply. The disclosure of the 10b5-1 sales and the standard certification about material nonpublic information indicate compliance with common insider-sale protocols.

Corporate Governance Expert

TL;DR: Filing is a standard Rule 144 notice; governance implication is routine insider liquidity, not a red flag by itself.

The notice shows the shares were acquired as RSUs from the issuer and that the seller attests to lack of undisclosed material adverse information. The record of recent 10b5-1 sales (08/22/2025) and the current proposed sale through a major broker align with ordinary governance practices for controlled insider dispositions. Absent additional context—such as timing around undisclosed events or unusually large percentages of holdings—this filing by itself does not signal a material governance concern.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
COMMON	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2430	600732.45	26003972	09/10/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/20/2024	Restricted Stock Units	Issuer			2430	02/20/2024	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for LIONEL BONNOT 5451 Patrick Henry Drive Santa Clara CA 95054	COMMON	08/22/2025	1990	444765.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What is being proposed in the SiTime (SITM) Form 144 filing?

The filer proposes to sell 2,430 common shares on 09/10/2025 via Morgan Stanley Smith Barney with an aggregate market value of $600,732.45.

How were the shares acquired that are proposed for sale?

The shares were acquired as restricted stock units (RSUs) from the issuer on 02/20/2024 and no cash payment is reported.

Has the seller made any recent sales of SITM stock?

Yes. The filing shows 1,990 shares were sold on 08/22/2025 under a 10b5-1 plan for $444,765.00.

What is the context on outstanding shares and materiality?

The issuer has 26,003,972 shares outstanding; the proposed sale of 2,430 shares is a very small percentage of outstanding shares.

Does the filing state the seller has material nonpublic information?

The filer represents by signing the notice that they do not know any material adverse information about the issuer that has not been publicly disclosed.