SITM SEC Filing News — SiTime Corporation

Latest SEC filings for SiTime Corporation (SITM) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-06.

SiTime Corporation engages in the design, development, and sale of silicon timing systems solutions in Hong Kong, Taiwan, the United States, Singapore, and internationally. It offers various types of oscillators, as well as clock integrated circuits, resonators, and synchronization software for use in artificial intelligence systems, data center, communications, enterprise, automotive, industrial, aerospace, defense, mobile, Internet of Things, and consumer markets. The company was incorporated …
Sector: Technology Industry: Semiconductors Market Cap: $14.9B CIK: 1451809
20
Total Filings
0
Bullish Classifications
7
Bearish Classifications
14
Insider Transactions
1
Material Events (8-K)
0
Periodic Reports
Rule-based classifications for SITM currently lean bearish. Of the 20 filing records displayed, 7 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
SITM Filing Activity Snapshot 2026-08-12 — 2026-10-06
Insider Transactions (Form 4)
0 buys vs 6 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$7.24M
VASHIST RAJESH · 2026-09-09
12,000 shares · Form 144
Form 144 Notices
5
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 14 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 14 filings in this group are Form 4s for SiTime Corporation.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 14 insider filings shown, the breakdown is 7 tax withholding, 6 open-market sale and 1 gift. 6 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Tax withholding ×7
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Open-market sale ×6
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Gift ×1
Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.
Form 4 Open-market sale Insider Selling 2026-10-06

SITM insider Assaderaghi Fariborz (See Remarks) sold 1,374 shares (~$963.2K)

Assaderaghi Fariborz, listed as See Remarks at SITIME Corp, reported an open-market sale of 1,374 SITM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1,374 $701.05 $963.2K
Filing: Form 4 (Insider Transaction) Insider: Assaderaghi Fariborz (See Remarks) Shares: 1,374 Est. Value: $963.2K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-14

SITM insider Pangrazio Vincent P (See Remarks) sold 3,000 shares (~$1.88M)

Pangrazio Vincent P, listed as See Remarks at SITIME Corp, reported an open-market sale of 3,000 SITM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 3,000 $625.00 $1.88M
Filing: Form 4 (Insider Transaction) Insider: Pangrazio Vincent P (See Remarks) Shares: 3,000 Est. Value: $1.88M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-10

SITM insider VASHIST RAJESH (Director, Chief Executive Officer) sold 12,000 shares (~$7.24M)

VASHIST RAJESH, listed as Director, Chief Executive Officer at SITIME Corp, reported an open-market sale of 12,000 SITM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 12,000 $603.47 $7.24M
G Gift 0 — —
G Gift 0 — —
Filing: Form 4 (Insider Transaction) Insider: VASHIST RAJESH (Director, Chief Executive Officer) Shares: 12,000 Est. Value: $7.24M
View on SEC EDGAR → Open Filing Document →
Form 4 Gift Tax / Compensation Filing 2026-09-02

SITM insider Form 4 filed for equity award, exercise, or tax withholding

VASHIST RAJESH (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code Nature Shares Price Value
G Gift 1,300 — —
G Gift 650 — —
G Gift 650 — —
Filing: Form 4 (Insider Transaction) Insider: VASHIST RAJESH (Director, Chief Executive Officer) Shares: 2,600
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-24

SITM insider Form 4 filed for equity award, exercise, or tax withholding

Howe Elizabeth A. (EVP, Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
F Tax withholding on vested shares 2,740 $598.81 $1.64M
Filing: Form 4 (Insider Transaction) Insider: Howe Elizabeth A. (EVP, Chief Financial Officer) Shares: 2,740
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-24

SITM insider Form 4 filed for equity award, exercise, or tax withholding

Ahamad Samsheer (See Remarks) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
G Gift 17,167 — —
F Tax withholding on vested shares 1,484 $598.81 $888.6K
Filing: Form 4 (Insider Transaction) Insider: Ahamad Samsheer (See Remarks) Shares: 18,651
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-24

SITM insider Form 4 filed for equity award, exercise, or tax withholding

VASHIST RAJESH (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
F Tax withholding on vested shares 29,054 $598.81 $17.40M
Filing: Form 4 (Insider Transaction) Insider: VASHIST RAJESH (Director, Chief Executive Officer) Shares: 29,054
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-24

SITM insider Form 4 filed for equity award, exercise, or tax withholding

Pangrazio Vincent P (See Remarks) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
F Tax withholding on vested shares 5,419 $598.81 $3.24M
Filing: Form 4 (Insider Transaction) Insider: Pangrazio Vincent P (See Remarks) Shares: 5,419
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-24

SITM insider Form 4 filed for equity award, exercise, or tax withholding

Bonnot Lionel (See Remarks) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
F Tax withholding on vested shares 9,630 $598.81 $5.77M
Filing: Form 4 (Insider Transaction) Insider: Bonnot Lionel (See Remarks) Shares: 9,630
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-24

SITM insider Form 4 filed for equity award, exercise, or tax withholding

Assaderaghi Fariborz (See Remarks) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
F Tax withholding on vested shares 9,701 $598.81 $5.81M
Filing: Form 4 (Insider Transaction) Insider: Assaderaghi Fariborz (See Remarks) Shares: 9,701
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-24

SITM insider Form 4 filed for equity award, exercise, or tax withholding

Sevalia Piyush B (See Remarks) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
F Tax withholding on vested shares 9,701 $598.81 $5.81M
Filing: Form 4 (Insider Transaction) Insider: Sevalia Piyush B (See Remarks) Shares: 9,701
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-19

SITM insider Frank Edward H. (Director) sold 1,000 shares (~$745.0K)

Frank Edward H., listed as Director at SITIME Corp, reported an open-market sale of 1,000 SITM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1,000 $745.00 $745.0K
Filing: Form 4 (Insider Transaction) Insider: Frank Edward H. (Director) Shares: 1,000 Est. Value: $745.0K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-18

SITM insider Kreindl Torsten (Director) sold 695 shares (~$503.8K)

Kreindl Torsten, listed as Director at SITIME Corp, reported an open-market sale of 695 SITM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 350 $700.00 $245.0K
S Open-market sale 345 $750.12 $258.8K
Filing: Form 4 (Insider Transaction) Insider: Kreindl Torsten (Director) Shares: 695 Est. Value: $503.8K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-12

SITM insider SCHUELKE KATHERINE (Director) sold 500 shares (~$349.0K)

SCHUELKE KATHERINE, listed as Director at SITIME Corp, reported an open-market sale of 500 SITM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $698.05 $349.0K
Filing: Form 4 (Insider Transaction) Insider: SCHUELKE KATHERINE (Director) Shares: 500 Est. Value: $349.0K
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 5 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. SiTime Corporation has 5 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-10-02

SITM Form 144 filed for proposed insider sale by FARIBORZ ASSADERAGHI (1,374 shares) ~$932.8K

FARIBORZ ASSADERAGHI filed a Form 144 with the SEC indicating intent to sell SITM (SITIME Corp) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: FARIBORZ ASSADERAGHI Shares: 1,374 Est. Value: $932.8K
View on SEC EDGAR → Open Filing Document →
Form 144 Large Proposed Insider Sale 2026-09-09

SITM Form 144 filed for proposed insider sale by VASHIST RAJESH (12,000 shares) ~$7.24M

VASHIST RAJESH filed a Form 144 with the SEC indicating intent to sell SITM (SITIME Corp) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: VASHIST RAJESH Shares: 12,000 Est. Value: $7.24M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-17

SITM Form 144 filed for proposed insider sale by Frank Edward H. (1,000 shares) ~$745.0K

Frank Edward H. filed a Form 144 with the SEC indicating intent to sell SITM (SITIME Corp) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Frank Edward H. Shares: 1,000 Est. Value: $745.0K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-17

SITM Form 144 filed for proposed insider sale by DR TORSTEN G KREINDL (345 shares) ~$258.8K

DR TORSTEN G KREINDL filed a Form 144 with the SEC indicating intent to sell SITM (SITIME Corp) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: DR TORSTEN G KREINDL Shares: 345 Est. Value: $258.8K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-14

SITM Form 144 filed for proposed insider sale by DR TORSTEN G KREINDL (350 shares) ~$245.0K

DR TORSTEN G KREINDL filed a Form 144 with the SEC indicating intent to sell SITM (SITIME Corp) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: DR TORSTEN G KREINDL Shares: 350 Est. Value: $245.0K
View on SEC EDGAR → Open Filing Document →
Material Events 1 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There is 1 in this period for SiTime Corporation. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K/A Amended Material Company Update 2026-09-09

SITM filed amended 8-K — material company event

SITIME Corp filed an amended 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K/A (Material Event Amendment)
View on SEC EDGAR → Open Filing Document →

How we classify SiTime Corporation's filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on SITM. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — SITM SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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