SITM · SITIME Corp

Includes an aggregate of 291,529 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 85,426 restricted stock units that vest over time, and 206,103 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.

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.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $735.12 to $736.18 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.

Includes an aggregate of 65,813 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 23,215 restricted stock units that vest over time, and 42,598 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.

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.

Includes an aggregate of 39,966 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 15,552 restricted stock units that vest over time, and 24,414 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.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $700.23 to $716.61 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.

Includes an aggregate of 76,830 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 32,013 restricted stock units that vest over time, and 44,817 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.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $694.94 to $707.33 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.

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.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $694.94 to $707.33 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.

Includes an aggregate of 291,529 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 85,426 restricted stock units that vest over time, and 206,103 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.

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.

Restricted stock unit award vests fully on May 20, 2027.

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.

Restricted stock unit award vests fully on May 20, 2027.

Includes an aggregate of 1,227 shares of common stock issuable pursuant to previously reported restricted stock units that have not vested.

Restricted stock unit award vests fully on May 20, 2027.

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.

Restricted stock unit award vests fully on May 20, 2027.

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.

Restricted stock unit award vests fully on May 20, 2027.

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.

Restricted stock unit award vests fully on May 20, 2027.

Includes an aggregate of 1,388 shares of common stock issuable pursuant to previously reported restricted stock units that have not vested.

Restricted stock unit award vests fully on May 20, 2027.

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.

Restricted stock unit award vests fully on May 20, 2027.

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 reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $700.00 to $719.53 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.

Includes an aggregate of 76,830 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 32,013 restricted stock units that vest over time, and 44,817 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.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $725.05 to $741.48 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.

Includes an aggregate of 76,830 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 32,013 restricted stock units that vest over time, and 44,817 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.

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.

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.

Includes an aggregate of 69,607 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 24,790 restricted stock units that vest over time, and 44,817 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.

Includes an aggregate of 58,148 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 37,466 restricted stock units that vest over time, and 20,682 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.

Includes an aggregate of 291,529 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 85,426 restricted stock units that vest over time, and 206,103 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.

Includes an aggregate of 39,966 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 15,552 restricted stock units that vest over time, and 24,414 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.

Includes an aggregate of 65,813 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 23,215 restricted stock units that vest over time, and 42,598 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.

Includes an aggregate of 76,830 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 32,013 restricted stock units that vest over time, and 44,817 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.

Includes an aggregate of 26,925 shares of common stock issuable pursuant to previously reported restricted stock units and performance-based restricted stock units and that have not vested. These unvested units include 13,991 restricted stock units that vest over time, and 12,934 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.

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.

On May 14, 2026, the Reporting Person made a bona fide gift for estate planning purposes of 9,305 shares of the Issuer's common stock to H D & Christine Heckart 2014 Fam Trust UAD 2/14/2014, of which the Reporting Person is one of the managers. The Reporting Person and members of her immediate family are the sole beneficiaries of the trust. The Reporting Person remains the beneficial owner of the shares.

Includes an aggregate of 1,290 shares of common stock issuable pursuant to the restricted stock unit award reported pursuant to this Form 4 that has not yet vested.

Includes an aggregate of 1,290 shares of common stock issuable pursuant to the restricted stock unit award reported pursuant to this Form 4 that has not yet vested.

Includes an aggregate of 81,486 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 29,486 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.

Includes an aggregate of 81,486 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 29,486 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.

Includes an aggregate of 81,486 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 29,486 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.

On February 11, 2026, the Reporting Person made a bona fide gift for estate planning purposes of 24,000 shares each of the Issuer's common stock to Aldebran Rajesh Family Dynasty Trust DTD 9/23/2021 and Aldebran Rohini Family Dynasty Trust DTD 9/23/2021, respectively.

Includes an aggregate of 324,680 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 94,634 restricted stock units that vest over time, and 230,046 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.

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.

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.

Includes an aggregate of 1,290 shares of common stock issuable pursuant to the restricted stock unit award reported pursuant to this Form 4 that has not yet vested.

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.

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.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $398.48 to $410.40 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.

Includes an aggregate of 77,553 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 27,772 restricted stock units that vest over time, and 49,781 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.

Includes an aggregate of 46,716 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 18,407 restricted stock units that vest over time, and 28,309 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.

Includes an aggregate of 81,486 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 29,486 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.

Includes an aggregate of 324,680 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 94,634 restricted stock units that vest over time, and 230,046 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.