SiTime (SITM) director Heckart sells 1,290 shares and reports 9,305 held via trust

Filing Impact

(High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

SITIME Corp director Christine Heckart reported an open-market sale of 1,290 shares of Common Stock at $700.00 per share. The transaction occurred on June 2, 2026 and left her with 790 shares held directly. She also has 9,305 shares held indirectly through the H D & Christine Heckart 2014 Family Trust, where she has voting and investment power over the shares. Footnotes note that this indirect position includes 390 shares issuable under a restricted stock unit award that has not yet vested.

Insider Trade Summary

Net Seller: 1,290 shares ($903,000)

Net Sell 2 txns

Insider Heckart Christine

Role null

Sold 1,290 shs ($903K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,290	$700.00	$903K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 790 shares (Direct, null); Common Stock — 9,305 shares (Indirect, See Footnote)

Footnotes (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. The reportable securities are owned directly by H D & Christine Heckart 2014 Fam Trust UAD 2/14/2014, of which the Reporting Person is one of the managers and has voting and investment power over the shares

Key Figures

Shares sold: 1,290 shares Sale price: $700.00 per share Direct holdings after sale: 790 shares +2 more

5 metrics

Shares sold 1,290 shares Open-market sale of Common Stock on June 2, 2026

Sale price $700.00 per share Execution price for 1,290-share sale

Direct holdings after sale 790 shares Total Common Stock held directly following transaction

Indirect holdings 9,305 shares Common Stock held via H D & Christine Heckart 2014 Family Trust

Unvested RSUs included 390 shares Shares issuable under restricted stock unit award not yet vested

Key Terms

open-market sale, restricted stock unit award, indirect ownership, voting and investment power

4 terms

open-market sale financial

"Sale in open market or private transaction"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

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.

indirect ownership financial

"The reportable securities are owned directly by H D & Christine Heckart 2014 Fam Trust"

voting and investment power financial

"the Reporting Person is one of the managers and has voting and investment power over the shares"

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Form 4 Insider Transactions: What Each Field Means →

06/04/2026 - 07:22 PM

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^*

Heckart Christine

(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)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/02/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/02/2026		S		1,290	D	$700	790⁽¹⁾	D
Common Stock								9,305	I	See Footnote⁽²⁾

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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.

2. The reportable securities are owned directly by H D & Christine Heckart 2014 Fam Trust UAD 2/14/2014, of which the Reporting Person is one of the managers and has voting and investment power over the shares

Remarks:

	Samsheer Ahamad, Attorney-in-fact	06/04/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did SITM director Christine Heckart report?

Director Christine Heckart reported an open-market sale of 1,290 shares of SiTime (SITM) Common Stock. The sale was executed at $700.00 per share on June 2, 2026, as disclosed in the Form 4 insider trading report.

At what price did Christine Heckart sell SITM shares?

She sold 1,290 shares of SiTime (SITM) Common Stock at $700.00 per share. This price reflects the execution level for the reported open-market transaction on June 2, 2026, according to the Form 4 filing.

How many SITM shares does Christine Heckart hold directly after the sale?

After the sale, Christine Heckart directly holds 790 shares of SiTime (SITM) Common Stock. This post-transaction share balance is reported in the Form 4 as the total shares owned directly following the open-market sale.

What indirect holdings in SITM does Christine Heckart report?

She reports 9,305 SiTime (SITM) shares held indirectly through the H D & Christine Heckart 2014 Family Trust. The Form 4 notes she is a manager of the trust and has voting and investment power over these shares.

Does the SITM Form 4 include any restricted stock units for Christine Heckart?

Yes. A footnote states that indirect holdings include 390 shares of SiTime (SITM) Common Stock issuable under a restricted stock unit award that has not yet vested, as reported in connection with this Form 4 filing.