Every Form 4 that SiTime (SITM) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow SITM and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full SITM filings page.
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.
SITIME Corp executive reports tax-related share disposition
SITIME Corp EVP and Chief Financial Officer Elizabeth A. Howe reported a tax-withholding disposition of 1,928 shares of common stock on February 20, 2026 at a value of $406.97 per share. This Form 4 uses code “F,” indicating shares were withheld to cover tax liabilities rather than sold in an open-market transaction.
After this transaction, Howe directly holds 70,626 shares of common stock. A footnote states that this total includes 63,525 shares issuable from previously reported restricted stock units and performance-based restricted stock units that have not yet vested, tying a large portion of her stake to future vesting and performance conditions.
SiTime Corp Chief Executive Officer Rajesh Vashist reported a tax-withholding disposition of common stock. On February 20, 2026, he transferred 14,340 shares of SiTime common stock at $406.97 per share to cover tax obligations related to equity compensation, using transaction code F.
After this transaction, Vashist directly owned 497,769 common shares, which include an aggregate of 324,680 shares issuable from unvested restricted stock units and performance-based units tied to absolute and relative stock price performance over various periods. He also has indirect ownership of 1,809 and 1,809 shares through the Aldebran Rajesh and Rohini Family Dynasty Trusts and 24,781 shares through Aldebran Constellation LLC, where he is a manager with voting and investment power.
SITIME Corp officer Samsheer Ahamad reported a tax-related share disposition. On the reported date, 2,214 shares of common stock were disposed of at $406.97 per share to satisfy tax obligations, leaving him with 49,824 shares of common stock held directly.
The holdings figure includes 29,836 shares underlying previously reported restricted stock units and performance-based restricted stock units that have not yet vested. These unvested units comprise 16,902 time-based restricted stock units and 12,934 performance-based units tied to absolute and relative price performance over various performance periods.
SITIME Corp officer Piyush B. Sevalia reported a Form 4 transaction involving a tax-related share disposition. On February 20, 2026, he disposed of 3,758 shares of common stock at $406.97 per share to satisfy tax obligations by delivering shares rather than paying cash.
After this transaction, he held 89,165 shares of common stock directly. A footnote explains that this total includes 81,486 shares underlying previously reported unvested restricted stock units and performance-based restricted stock units, which may vest over time or based on the issuer's stock price performance.
SITIME Corp officer Piyush B. Sevalia reported open-market sales of company common stock. He sold 566 shares at $425.00 on February 18, 2026 and 566 shares at $413.08 on February 17, 2026, totaling 1,132 shares.
After these sales, he directly holds 92,923 shares of common stock. This amount includes 89,557 shares issuable from previously reported unvested restricted stock units and performance-based restricted stock units.
SiTime Corp executive Samsheer Ahamad reported multiple equity grants, a stock sale, and a charitable transfer. On February 10, 2026, he acquired 1,801, 3,070, 2,728 and 2,728 shares of common stock at a grant price of $0 through restricted stock unit and performance-based restricted stock unit awards with vesting tied to specific future dates and performance conditions.
On February 11, 2026, he sold 9,100 shares of common stock in an open-market transaction at $441.47 per share. Separately, 900 shares were transferred as a bona fide gift to Stifel Charitable Inc., FBO the Ahamad Family Foundation; those shares are owned directly by Stifel Charitable Inc., and he has no voting or investment power over them. Following these transactions, he beneficially owned 52,038 shares directly, including 34,871 shares issuable from unvested restricted and performance-based stock units.
SiTime executive Fariborz Assaderaghi, Executive Vice President of Engineering & Technology, reported multiple equity awards and share sales. On February 10, 2026, he acquired 1,801, 5,473, 4,980, and 4,980 shares of common stock at $0 per share through restricted stock unit and performance-based awards.
He then sold 500 shares on February 10, 2026 at $416.06 per share and 2,112 shares on February 11, 2026 in open-market transactions at a weighted average price of $428.08 per share, with individual trades ranging from $416.06 to $436.99. After these transactions, he beneficially owned 97,937 shares, including 96,782 shares issuable from unvested restricted and performance-based stock units.
SiTime Corporation's chief executive officer and director, Rajesh Vashist, reported multiple equity awards of common stock on February 10, 2026. These grants include 4,639 restricted stock units under an Executive Bonus and Retention Plan that vest 50% on May 20, 2026 and 50% on August 20, 2026, plus additional performance-based restricted stock units tied to prior awards from March 15, 2024 and August 12, 2024 that fully vest on February 20, 2027 if performance goals are met. He also received a new restricted stock unit award vesting 6.25% on February 20, 2026 and quarterly thereafter. Following these awards, he directly beneficially owns 512,109 shares of common stock, which includes 353,562 unvested restricted and performance-based units, and indirectly holds additional shares through two family dynasty trusts and an LLC where he has voting and investment power.
SiTime Corporation Executive Vice President, Worldwide Sales and Business Development Lionel Bonnot reported multiple equity awards of common stock on February 10, 2026. These awards were granted at a price of $0 per share as restricted stock units and performance-based restricted stock units.
The transactions covered grants of 1,801, 5,473, 4,229 and 4,229 shares, all classified as acquisitions rather than open-market purchases. Following these awards, Bonnot beneficially owned 88,269 shares of common stock, including 85,485 shares issuable from unvested restricted and performance-based stock units with various time- and performance-based vesting schedules.
SiTime Corporation executive Piyush B. Sevalia, EVP of Marketing, reported multiple equity awards of common stock on February 10, 2026. These are coded as grants or other acquisitions, not open-market purchases or sales, and were awarded at a price of $0 per share.
The filing shows a 1,801-share restricted stock unit (RSU) grant under the Executive Bonus and Retention Plan, vesting 50% on May 20, 2026 and 50% on August 20, 2026. It also reports 5,473 additional shares tied to performance-based RSUs initially granted on March 15, 2024, with a total of 10,946 shares from that PRSU award vesting on February 20, 2027.
Sevalia also received a 4,980-share RSU award vesting 6.25% on February 20, 2026 and quarterly thereafter, plus a 4,980-share performance-based RSU award that vests based on relative total stockholder return over a three-year period. Following these transactions, he beneficially owns 94,055 shares of common stock, including 89,557 shares underlying unvested RSUs and performance-based RSUs.
SiTime Corp executive Vincent P. Pangrazio reported equity awards in company stock. On February 10, 2026, he acquired four grants of common stock totaling 10,157 shares at $0 per share through restricted stock units and performance-based restricted stock units.
One restricted stock unit grant vests 50% on May 20, 2026 and 50% on August 20, 2026. Another award relates to performance-based units first granted on March 15, 2024, with 5,936 shares scheduled to vest on February 20, 2027 if performance goals are met. Additional time-based units vest 6.25% on February 20, 2026 and then quarterly.
After these awards, Pangrazio directly beneficially owns 60,697 shares of common stock, including 51,023 shares tied to unvested restricted and performance-based units that depend on time- and stock-price-related conditions. He serves as EVP, Chief Legal Officer & Corporate Secretary.
SiTime EVP and CFO Elizabeth A. Howe received multiple stock awards in the form of restricted stock units and performance-based units on February 10, 2026. She acquired 1,806, 5,629, 4,093 and 4,093 shares of common stock at a price of $0 per share, bringing her directly held beneficial ownership to 72,554 shares.
The new awards vest over time and based on performance. One grant vests 50% on May 20, 2026 and 50% on August 20, 2026, while another vests 6.25% on February 20, 2026 and then quarterly. Performance-based units depend on achieving specified total stockholder return and other price performance targets over multi-year periods. Of the reported holdings, 68,000 shares are tied to unvested restricted and performance-based stock units.
SiTime director Akira Takata sold 3,500 shares of common stock on February 6, 2026 at a weighted average price of $431.73 per share. The sale was executed in multiple transactions at prices ranging from $428.80 to $435.01 per share.
After this transaction, Takata beneficially owned 13,734 SiTime shares directly, including 1,290 shares of common stock issuable under a restricted stock unit award that has not yet vested.
SiTime Corp director Faraj Aalaei reported stock-based awards in the form of restricted stock units. On January 21, 2026, he was awarded 837 shares of common stock at a price of $0 per share under SiTime’s Independent Director Compensation Policy. This award vests in stages, with one-third of the shares vesting on February 20, 2027, and an additional one-third vesting on each following February 20.
On the same date, he was also granted an additional 246 restricted stock units that vest fully on May 20, 2026, also at $0 per share. Following these awards, Aalaei directly beneficially owns a total of 1,083 shares of SiTime common stock, reflecting his equity-based compensation as a board member.
SiTime Corporation (SITM) reported an insider stock sale by its Executive Vice President of Worldwide Sales and Business Development. On 11/24/2025, the executive sold 1,078 shares of common stock at a price of $269.83 per share, reported with transaction code "S" for a sale. After this trade, the executive beneficially owns 72,537 shares of SiTime common stock.
This beneficial ownership includes an aggregate of 69,753 shares issuable from previously reported restricted stock units and performance-based restricted stock units that have not yet vested. These unvested awards consist of 24,201 time-based restricted stock units and 45,552 performance-based restricted stock units tied to absolute and relative stock price performance over various performance periods.
SiTime Corporation executive reports share withholding for equity award. An officer of SITM, identified as Executive Vice President, Engineering & Technology, reported a transaction dated 11/20/2025 involving 4,118 shares of common stock disposed of at $252.76 per share under transaction code "F," which typically reflects shares withheld to cover taxes on equity awards. Following this transaction, the officer beneficially owns 86,315 shares of common stock.
The holding includes 79,548 unvested restricted stock units and performance-based restricted stock units: 32,528 time-vesting units and 47,020 units that vest based on absolute and relative stock price performance over various periods.
SiTime Corporation (SITM) reported an insider equity transaction by its Executive Vice President of Worldwide Sales and Business Development. On 11/20/2025, the officer disposed of 1,888 shares of common stock at a price of $252.76 per share, leaving 73,615 shares beneficially owned afterward.
The reported holdings include 69,753 shares of common stock issuable from previously reported restricted stock units and performance-based restricted stock units that have not yet vested. Of these, 24,201 are time-based restricted stock units and 45,552 are performance-based units tied to absolute and relative stock price performance over specified periods.
SiTime Corporation (SITM) executive officer (EVP, Marketing) reported a change in ownership of company stock. On 11/20/2025, the insider disposed of 1,936 shares of common stock at a price of $252.76 per share, as shown by transaction code F. Following this transaction, the insider beneficially owns 76,821 shares of common stock.
This figure includes an aggregate of 72,323 shares issuable from previously reported restricted stock units and performance-based restricted stock units that have not yet vested, consisting of 25,303 time-vesting units and 47,020 performance-based units tied to absolute and relative stock price performance over various periods.
SiTime Corporation (SITM) filed a Form 4 reporting an insider equity transaction. A company officer classified as an officer (SVP Finance and Chief Accounting Officer) reported a transaction in common stock on 11/20/2025. The filing shows 1,366 shares of common stock disposed of under transaction code "F" at a price of $252.76 per share, typically used for shares withheld to cover taxes.
After this transaction, the officer beneficially owns 55,711 shares of SiTime common stock. This amount includes 24,544 shares underlying unvested restricted stock units and performance-based restricted stock units, consisting of 14,338 time-based RSUs and 10,206 performance-based RSUs that vest based on absolute and relative stock price performance over various periods.
SiTime Corporation (SITM) executive reports routine share withholding transaction. An officer of the company reported the disposition of 1,011 shares of common stock on 11/20/2025 at $252.76 per share, coded as an "F" transaction, which typically reflects shares withheld to cover taxes on equity awards. After this transaction, the officer beneficially owned 50,540 shares of common stock. This total includes 40,866 unvested restricted stock units and performance-based restricted stock units, with 15,285 units vesting over time and 25,581 units vesting based on absolute and relative stock price performance over various periods.
SiTime Corp (SITM) executive vice president and chief financial officer reported a change in ownership of company stock. On 11/20/2025, a transaction coded "F" involved 2,137 shares of common stock at a price of $252.76 per share. After this transaction, the reporting person beneficially owns 56,933 shares of SiTime common stock.
This total includes 52,379 shares of common stock that may be issued in the future from previously reported restricted stock units and performance-based restricted stock units that have not yet vested. Of these unvested awards, 35,790 are restricted stock units that vest over time, and 16,589 are performance-based restricted stock units that vest based on absolute and relative stock price performance over various performance periods.
SiTime Corporation (SITM) CEO Form 4 insider filing reports that the Chief Executive Officer, who is also a director, disposed of 3,599 shares of common stock on 11/20/2025 in a transaction coded "F" at a price of $252.76 per share, typically indicating shares withheld to cover taxes on equity awards. Following this transaction, the CEO directly holds 435,609 shares of common stock.
The filing also discloses indirect ownership of 1,809 shares held by the Aldebran Rajesh Family Dynasty Trust, 1,809 shares held by the Aldebran Rohini Family Dynasty Trust, and 24,781 shares held by Aldebran Constellation LLC, over which the CEO has voting and investment power. In addition, 273,062 shares of common stock are issuable from previously reported unvested restricted stock units and performance-based restricted stock units, consisting of 70,509 time-based units and 202,553 performance-based units tied to absolute and relative stock price performance over various periods.
SITIME Corp (SITM) insider MegaChips Corporation, through its CEO Tetsuo Hikawa, reported a significant stock sale. On 11/20/2025, the reporting person, identified as a director and 10% owner of SITIME, sold 400,000 shares of common stock in a single transaction coded "S" (sale) at a price of $255.6 per share.
After this transaction, the reporting person beneficially owned 3,420,000 shares of SITIME common stock, held in direct ownership form. The filing indicates the form was filed by one reporting person and includes an option to flag transactions made under a Rule 10b5-1 trading plan, although the excerpt does not show that box as checked.
SiTime Corporation (SITM) CEO and director reported an open‑market sale of 10,000 shares of common stock at $329 on November 6, 2025.
After the transaction, he directly held 439,208 shares. A footnote states this includes 280,158 unvested units (restricted stock units and performance-based restricted stock units). He also reported indirect holdings of 1,809 shares in the Aldebran Rajesh Family Dynasty Trust, 1,809 shares in the Aldebran Rohini Family Dynasty Trust, and 24,781 shares via Aldebran Constellation LLC.
SiTime Corp (SITM) CEO and Director reported two open‑market sales on November 3, 2025: 1,000 shares at $290.50 and 1,000 shares at $289.00. Following these trades, the reporting person beneficially owns 449,208 shares directly.
He also reports indirect holdings of 1,809 shares through the Aldebran Rajesh Family Dynasty Trust, 1,809 shares through the Aldebran Rohini Family Dynasty Trust, and 24,781 shares through Aldebran Constellation LLC.
Footnotes state an aggregate of 280,158 unvested awards issuable pursuant to previously reported equity grants, comprising 77,605 time‑based restricted stock units and 202,553 performance‑based units tied to absolute and relative stock‑price performance over various periods.
SiTime Corp (SITM) reported an insider equity award. A company director filed a Form 4 disclosing two restricted stock unit (RSU) grants on 10/16/2025: 998 RSUs and 515 RSUs, each at a price of $0 per unit.
The filing states the 998-unit RSU award vests one-third on November 20, 2026 and one-third on each November 20 thereafter. The 515-unit RSU award vests fully on May 20, 2026.
Following these transactions, the reporting person shows 1,513 shares beneficially owned, described as common stock issuable pursuant to previously reported RSUs that have not vested.
SITIME Corp (SITM) insider sale and current holdings. The company’s Executive Vice President & Chief Financial Officer reported a sale of 5,099 shares of common stock on 10/06/2025 at a price of $319 per share. After that transaction the reporting person beneficially owned 59,070 shares in total. The filing states an aggregate of 56,597 unvested units are included in that total: 40,008 restricted stock units that vest over time and 16,589 performance-based restricted stock units that vest based on specified absolute and relative share-price performance over various performance periods.
Rajesh Vashist, SITIME Corp (SITM) reported insider transactions showing two open-market sales of common stock totaling 2,000 shares on 10/01/2025 at prices of approximately $293 and $295. After those sales, Mr. Vashist directly beneficially owned 451,208 shares and additionally held indirect ownership stakes through trusts and an LLC, bringing reported beneficial ownership to a combined position that includes 452,208 shares direct and several indirect holdings.
The filing also discloses 280,158 unvested restricted stock units (including 202,553 performance-based units and 77,605 time-based units) that remain outstanding and could dilute or convert to shares upon vesting when performance or time conditions are met.