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  4. [Form 4] SITIME Corp Insider Trading Activity

SITIME Corp (SITM) director Schuelke sells 500 shares, holds 12,010

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

SITIME Corp director Katherine Schuelke reported a sale of 500 shares of Common Stock on 2026-08-11 at a price of $698.05 per share in an open-market or private transaction. After this sale, she reported holding 12,010 shares, which include 390 shares issuable under an unvested restricted stock unit award.

Positive

  • None.

Negative

  • None.
Insider SCHUELKE KATHERINE
Role Director
Sold 500 shs ($349K)
Type Security Shares Price Value
Sale Common Stock F1 500 $698.05 $349K
Holdings After Transaction: Common Stock — 12,010 shares (Direct)
Footnotes (1)
  1. F1. Includes an aggregate of 390 shares of common stock issuable pursuant to the restricted stock unit award reported pursuant to this Form 4 that has not yet vested.
Shares sold 500 shares of Common Stock Non-derivative sale on 2026-08-11 by director Katherine Schuelke
Sale price per share $698.05 per share Price for the 500-share Common Stock sale on 2026-08-11
Shares owned after transaction 12,010 shares Total Common Stock reported following the 2026-08-11 sale
Unvested RSU shares included 390 shares Shares issuable from an unvested restricted stock unit award within the 12,010 total
restricted stock unit award financial
"shares of common stock issuable pursuant to the restricted stock unit award"
A restricted stock unit award is a promise by a company to give an employee a specified number of company shares at a future date if certain conditions are met, such as staying with the company or hitting performance goals. For investors, these awards matter because they can increase the total number of shares outstanding when converted, diluting existing holders, and they align employees’ incentives with shareholders’ interests much like giving a rising bonus that becomes real only after conditions are satisfied.
Common Stock financial
"security_title: Common Stock, non-derivative transaction reported"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
open market or private transaction financial
"transaction_code_description: Sale in open market or private transaction"

FAQ

What insider transaction did SITM director Katherine Schuelke report?
Katherine Schuelke reported selling 500 SITIME Corp (SITM) common shares on 2026-08-11 at $698.05 per share in an open-market or private transaction, as reflected in her Form 4 filing.

How many SITM shares did Katherine Schuelke retain after the reported sale?
After the transaction, Katherine Schuelke reported holding 12,010 SITIME Corp shares. This total includes 390 shares issuable from an unvested restricted stock unit award referenced in the Form 4 footnote.

What price did Katherine Schuelke receive per SITM share in the sale?
The reported sale price was $698.05 per SITIME Corp share. This price is described as a per-share transaction price for the 500 common shares sold on 2026-08-11 in the Form 4 data.

Does Katherine Schuelke’s SITM holding include unvested restricted stock units?
Yes. Her reported post-transaction holding of 12,010 SITIME Corp shares includes an aggregate of 390 shares issuable pursuant to an unvested restricted stock unit award, according to the Form 4 footnote.

Was the SITM insider sale reported under a Rule 10b5-1 trading plan?
The Form 4 indicates the Rule 10b5-1 checkbox is not marked as affirmative. The data do not state that this 500-share sale was executed pursuant to a pre-arranged Rule 10b5-1 trading plan.

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

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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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*
SCHUELKE KATHERINE
(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/11/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock08/11/2026S500D$698.0512,010(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Includes an aggregate of 390 shares of common stock issuable pursuant to the restricted stock unit award reported pursuant to this Form 4 that has not yet vested.
Remarks:
Samsheer Ahamad, Attorney-in-fact08/12/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR