STOCK TITAN

SiTime (NASDAQ: SITM) CEO delivers 29K shares for option costs or taxes

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Form Type
4

Rhea-AI Filing Summary

SITIME Corp (SITM) director and Chief Executive Officer Rajesh Vashist reported an exercise-price-or-tax-liability disposition involving 29,054 shares of common stock on 2026-08-20, with a reported price of $598.81 per share. After this withholding, he directly holds 358,844 shares, which include 234,434 unvested RSUs and performance-based RSUs.

The unvested units comprise 76,217 time-based RSUs and 158,217 performance-based RSUs that vest based on specified absolute and relative price performance of SITIME Corp common stock. Additional indirect holdings are reported through Aldebran Constellation LLC and two family Dynasty Trusts, for which Vashist has voting and investment power.

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Insider VASHIST RAJESH
Role Chief Executive Officer
Type Security Shares Price Value
Exercise Price or Tax Liability Common Stock F1 29,054 $598.81 $17.40M
holding Common Stock F2 -- -- --
holding Common Stock F3 -- -- --
holding Common Stock F4 -- -- --
Holdings After Transaction: Common Stock — 358,844 shares (Direct); Common Stock — 61,399 shares (Indirect, See Footnote)
Footnotes (4)
  1. F1. Includes an aggregate of 234,434 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 76,217 restricted stock units that vest over time, and 158,217 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.
  2. F2. The reportable securities are owned directly by Aldebran Constellation LLC, of which the Reporting Person is one of the managers and has voting and investment power over the shares.
  3. F3. The reportable securities are owned directly by Aldebran Rajesh Family Dynasty Trust DTD 09/23/2021, of which the Reporting Person is one of the managers and has voting and investment power over the shares.
  4. F4. The reportable securities are owned directly by Aldebran Rohini Family Dynasty Trust DTD 09/23/2021, of which the Reporting Person is one of the managers and has voting and investment power over the shares.
Shares delivered or withheld 29,054 shares Shares used for payment of exercise price or tax liability on 2026-08-20
Price per share $598.81 per share Reported for the 29,054-share exercise-price-or-tax-liability disposition
Direct holdings after transaction 358,844 shares Common stock directly held by Rajesh Vashist following the 2026-08-20 transaction
Unvested RSUs and performance-based RSUs 234,434 units Included within direct holdings after the transaction
Time-based RSUs 76,217 units Restricted stock units that vest over time
Performance-based RSUs 158,217 units Units that vest based on absolute and relative price performance over performance periods
Exercise-price-or-tax-liability shares 29,054 shares Total shares used for payment of exercise price or tax liability per transaction summary
performance-based restricted stock units financial
"and performance-based restricted stock units that have not vested."
Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.
absolute and relative price performance financial
"that vest based on certain absolute and relative price performance"
voting and investment power financial
"and has voting and investment power over the shares."
Dynasty Trust financial
"Family Dynasty Trust DTD 09/23/2021, of which the Reporting Person"

FAQ

What did SITM CEO Rajesh Vashist report in this Form 4?

Rajesh Vashist reported an exercise-price-or-tax-liability disposition of 29,054 SITIME Corp (SITM) shares of common stock on 2026-08-20, using shares to pay the exercise price or tax liability, rather than a market sale.

How many SITM shares does Rajesh Vashist hold directly after this transaction?

After the 29,054-share disposition, Rajesh Vashist directly holds 358,844 shares of SITIME Corp common stock. This figure includes both vested shares and 234,434 unvested restricted stock units and performance-based restricted stock units.

How many unvested RSUs does SITM CEO Rajesh Vashist have?

Rajesh Vashist has 234,434 unvested units tied to SITIME Corp stock, including 76,217 time-based RSUs and 158,217 performance-based RSUs that vest based on absolute and relative stock-price performance over various periods.

What price per share is reported for the SITM Form 4 transaction?

The Form 4 reports a price of $598.81 per share for the 29,054-share exercise-price-or-tax-liability disposition on 2026-08-20. This reflects the value used when shares were delivered or withheld to cover the exercise price or tax liability.

Does Rajesh Vashist have indirect holdings of SITM shares?

Yes. The filing states that additional SITIME Corp shares are owned by Aldebran Constellation LLC and two family Dynasty Trusts, for which Rajesh Vashist is one of the managers and has voting and investment power over the shares.

Was this SITM Form 4 filed under a Rule 10b5-1 trading plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not checked, and the footnotes do not state that the 29,054-share exercise-price-or-tax-liability disposition was executed pursuant to a Rule 10b5-1 trading plan.

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

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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*
VASHIST RAJESH

(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
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/20/2026
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 Stock08/20/2026F29,054D$598.81358,844(1)D
Common Stock9,781ISee Footnote(2)
Common Stock25,809ISee Footnote(3)
Common Stock25,809ISee Footnote(4)
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 234,434 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 76,217 restricted stock units that vest over time, and 158,217 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.
2. The reportable securities are owned directly by Aldebran Constellation LLC, of which the Reporting Person is one of the managers and has voting and investment power over the shares.
3. The reportable securities are owned directly by Aldebran Rajesh Family Dynasty Trust DTD 09/23/2021, of which the Reporting Person is one of the managers and has voting and investment power over the shares.
4. The reportable securities are owned directly by Aldebran Rohini Family Dynasty Trust DTD 09/23/2021, of which the Reporting Person is one of the managers and has voting and investment power over the shares.
Remarks:
Samsheer Ahamad, Attorney-in-fact08/24/2026
** 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)