[144] SITIME Corp SEC Filing

Rhea-AI Filing Summary

SITIME Corp (SITM) Form 144 notice reports a proposed sale of 5,099 common shares by an insider through Stifel Nicolaus with an aggregate market value of $1,626,300. The shares were acquired as RSUs on 05/20/2025 and the reported sale is scheduled for 10/06/2025 on NASDAQ. The filing also lists three recent insider sales totaling $1,277,800 across dates in 08/06/2025, 09/15/2025, and 09/24/2025. The filer certifies there is no undisclosed material adverse information and notes the sale uses a net exercise/payment method.

Insights

Securities Insider-Transactions Analyst

TL;DR: An insider RSU sale of 5,099 shares (net-exercise) is scheduled for 10/06/2025

The transaction shows an insider disposing of 5,099 shares acquired as restricted stock units on 05/20/2025, executed via a broker (Stifel Nicolaus) with an aggregate market value of $1,626,300. The filing indicates net exercise payment, meaning shares were surrendered to cover taxes or exercise costs rather than a cash outlay at acquisition.

The insider previously sold 901, 2,500, and 1,500 shares on 09/24/2025, 09/15/2025, and 08/06/2025, respectively, for combined proceeds of $1,277,800. Given the company’s stated outstanding share count of 2,600,000, the aggregate recent insider activity remains a small fraction of total shares outstanding and is not inherently material to capitalization, though it is a clear signal of insider selling over the past months.

10/06/2025 - 01:00 PM

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	Stifel Nicolaus 501 N Broadway St Louis MO 63201	5099	1626300.00	2600000	10/06/2025	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	05/20/2025	RSUs	SiTime Corp			5099	05/20/2025	Net Exercise

* 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
Elizabeth Howe 5451 Patrick Henry Dr Santa Clara CA 95054	Common	09/24/2025	901	287400.00
Elizabeth Howe 5451 Patrick Henry Dr, Santa Clara CA 95054	Common	09/15/2025	2500	678400.00
Elizabeth Howe 5451 Patrick Henry Dr. Santa Clara CA 95054	Common	08/06/2025	1500	312000.00

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 did the SITM Form 144 report?

The notice reports a proposed sale of 5,099 common shares worth $1,626,300, scheduled for 10/06/2025, executed through Stifel Nicolaus.

How were the 5,099 SITM shares acquired?

The shares were acquired as RSUs on 05/20/2025 and the payment method at acquisition is listed as Net Exercise.

Has the insider sold other SITM shares recently?

Yes. The filing lists prior sales of 1,500 shares on 08/06/2025, 2,500 on 09/15/2025, and 901 on 09/24/2025, totaling $1,277,800 in gross proceeds.

On which exchange will the SITM shares be sold?

The proposed sale is planned on NASDAQ.

Does the filer state any undisclosed material information?

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

How large is the sale relative to SITM's outstanding shares?

The filing lists 2,600,000 shares outstanding; the proposed 5,099-share sale represents a small fraction of that total (under 0.20%).