Welcome to our dedicated page for SITIME SEC filings (Ticker: SITM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Tracking how SiTime’s MEMS timing chips disrupt legacy quartz is exciting—digging that insight out of a 300-page 10-K is not. SiTime’s reports are packed with wafer-level yield data, supply-chain concentration tables, and market-share analyses that most investors gloss over. If you have ever searched “SiTime SEC filings explained simply,” this page answers that need.
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- Comparing MEMS unit shipments quarter-over-quarter with our AI-annotated tables
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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.
SITime Corp (SITM) filed a Form 144 notifying the proposed sale of 2,000 common shares acquired as RSUs on 11/20/2024. The transaction lists Stifel Nicolaus as the broker, an approximate aggregate market value of $588,000, and an approximate sale date of 10/01/2025 on NASDAQ.
The filing also discloses prior sales by the same seller within the past three months: sales on 07/18/2025, 08/07/2025, 09/02/2025 and 09/15/2025 totaling 16,000 common shares for gross proceeds of $4,093,900.00. The 2,000 shares to be sold were reported as net-exercised RSUs from SITime Corp.
Elizabeth A. Howe, EVP and Chief Financial Officer of SITIME Corp (SITM), reported a sale of 901 shares of common stock on 09/24/2025 at a price of $319 per share. After the transaction she beneficially owns 64,169 shares in total.
The reported beneficial ownership includes an aggregate of 56,597 shares issuable under previously reported restricted stock units that have not vested: 40,008 time‑vesting restricted stock units and 16,589 performance‑based restricted stock units that vest based on specified absolute and relative price performance conditions over various performance periods. The Form 4 was signed by an attorney‑in‑fact on 09/26/2025.
Form 144 notice for SiTime Corp (SITM): The filer notifies a proposed sale of 901 common shares through Stifel Nicolaus on 09/24/2025 with an aggregate market value of $287,400. The shares were acquired on 05/20/2025 as RSUs from SiTime Corp and paid via net exercise on the same date. The filing also discloses recent sales by the same person, Elizabeth Howe: 1,000 shares on 09/18/2025 for $298,000, 2,500 shares on 09/15/2025 for $678,400, and 1,500 shares on 08/06/2025 for $312,000. The form includes the standard representation that the seller is not aware of undisclosed material adverse information.
Insider transaction summary for SITM: Elizabeth A. Howe, Executive Vice President and Chief Financial Officer, reported a sale of 1,000 shares of SITIME Corp common stock on 09/18/2025 at a reported price of $298 per share.
After the sale she beneficially owns 65,070 shares, which includes 56,597 unvested restricted stock units and performance-based restricted stock units (40,008 time-vesting RSUs and 16,589 performance-based RSUs). The Form 4 was filed individually and indicates the transaction may have been made pursuant to a Rule 10b5-1 plan.
Form 144 notice for SITM: The filer intends to sell 1,000 common shares of SiTime Corp via Stifel Nicolaus (broker) with an approximate aggregate market value of $298,000 and an approximate sale date of 09/18/2025. The securities were acquired as RSUs on 11/28/2024 from SiTime Corp and were exercised via net exercise on 11/28/2024. The filing also reports prior sales by the same seller: 2,500 shares on 09/15/2025 for $678,000 and 1,500 shares on 08/06/2025 for $312,000. The filer certifies no undisclosed material adverse information.
Elizabeth A. Howe, EVP and Chief Financial Officer of SITIME Corp (SITM), reported two open-market sales on 09/15/2025: 1,500 shares at $269 and 1,000 shares at $275. Following those transactions the filing shows beneficial ownership levels of 67,070 and 66,070 shares respectively. The filing discloses an aggregate of 56,597 unvested restricted stock units, of which 40,008 vest over time and 16,589 are performance-based and vest only if specified stock-price performance conditions are met. The form was signed by an attorney-in-fact on behalf of the reporting person on 09/17/2025.
Rajesh Vashist, SITIME Corp's Chief Executive Officer and a director, reported a sale of 10,000 shares of common stock on 09/15/2025 at $277 per share and continues to beneficially own 453,208 shares following the transaction. The total holdings reported include 280,158 shares issuable under previously reported restricted stock units that remain unvested, comprised of 77,605 time‑vesting RSUs and 202,553 performance‑based RSUs tied to absolute and relative stock price performance. Additional indirect holdings are reported through family trusts and an LLC for amounts described in the footnotes.
SITME Corp (SITM) Form 144 notice: The filer proposes to sell 2,500 shares of common stock through Stifel Nicolaus with an aggregate market value of $678,400, approximately on 09/15/2025 on NASDAQ. The shares were acquired as RSUs from SiTime Corp on 05/20/2025 with a net exercise payment on that date. The filing also discloses a prior sale of 1,500 shares on 08/06/2025 that generated $312,000 in gross proceeds. The signer certifies no undisclosed material adverse information and includes the standard Rule 10b5-1/representation language.
Vincent P. Pangrazio, EVP, Chief Legal Officer & Corporate Secretary of SiTime Corporation (SITM), reported the sale of 6,443 shares of common stock on 09/09/2025 under code S at a weighted average price of $246.16 per share (individual trade prices ranged from $245.00 to $249.50). After the sale he beneficially owns 52,612 shares, which include 42,868 shares issuable under previously reported unvested restricted stock units and performance-based restricted stock units. The filing indicates the transaction was covered by a Rule 10b5-1 plan.
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