SITIME (SITM) officer sells 4,984 shares and withholds 3,759 for taxes

Rhea-AI Filing Summary

SITIME Corp officer Fariborz Assaderaghi reported two stock dispositions. On February 24, 2026, he executed an open-market sale of 4,984 shares of common stock at a weighted average price of $406.45 per share, leaving 89,194 shares held directly.

On February 20, 2026, he disposed of 3,759 shares at $406.97 per share to cover taxes through share withholding. The direct holdings figure includes 88,710 unvested shares tied to restricted stock units and performance-based units, with 36,710 vesting over time and 52,000 vesting based on stock price performance.

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

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^*

Assaderaghi Fariborz

(Last) (First) (Middle)

C/O SITIME CORPORATION

5451 PATRICK HENRY DR.

(Street)

SANTA CLARA CA 95054

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/20/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	02/20/2026		F		3,759	D	$406.97	94,178	D
Common Stock	02/24/2026		S		4,984	D	$406.45(1)	89,194(2)	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. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $397.53 to $410.47 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

2. Includes an aggregate of 88,710 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 36,710 restricted stock units that vest over time, and 52,000 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, Engineering & Technology

	Samsheer Ahamad, Attorney-in-fact	02/24/2026
	** 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).
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FAQ

What insider transactions were reported for SITM in this Form 4?

The filing shows two transactions by officer Fariborz Assaderaghi: an open-market sale of 4,984 SITIME common shares at a weighted average of $406.45, and a 3,759-share tax-withholding disposition at $406.97 per share.

How many SITM shares did the insider sell on the open market?

Assaderaghi sold 4,984 shares of SITIME common stock in an open-market transaction. The weighted average sale price was $406.45 per share, with individual trades executed between $397.53 and $410.47 per share, according to the weighted-average footnote.

What was the purpose of the 3,759 SITM shares disposed at $406.97?

The 3,759 shares disposed at $406.97 per share were used for tax withholding. This transaction covered tax obligations by delivering shares, rather than representing a standard open-market sale, as indicated by the Form 4 transaction code F description.

How many SITM shares does the insider hold after these transactions?

After the reported transactions, Assaderaghi directly holds 89,194 SITIME shares. This figure includes 88,710 unvested shares issuable from restricted stock units and performance-based units, which vest over time and based on stock price performance conditions.

What unvested SITM equity awards are included in the insider’s holdings?

The holdings include 88,710 unvested SITIME shares from prior equity awards. These comprise 36,710 time-based restricted stock units that vest over time and 52,000 performance-based units that vest based on absolute and relative stock price performance over various periods.

Were the SITM shares sold at a single price or multiple prices?

The 4,984 SITIME shares sold were executed at multiple prices. The Form 4 reports a weighted average of $406.45 per share, with actual trade prices ranging from $397.53 to $410.47, as disclosed in the footnote.