Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

SITIME Corp

SITM · Nasdaq · CIK 0001451809 · Technology · Semiconductors

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

54 Form 4 transaction lines observed in the same window
27 sales · 27 option, withholding, award, gift or other lines

Last qualifying purchase2021-12-06 · Heckart Christine · $109.2K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
VASHIST RAJESHChief Executive Officer
○○▼▼○○○▼
Assaderaghi FariborzSee Remarks
○▼▼▼▼○▼
Bonnot LionelSee Remarks
○▼▼▼○
Kreindl TorstenDirector
▼○▼▼▼
Pangrazio Vincent PSee Remarks
○▼○▼
Heckart ChristineDirector
○○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 10 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2021-12-06 · Heckart Christine.

Recent Form 4 activity

0Purchases
51Sales
70Other Form 4 lines
81SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING27 sale line(s) · context only
OTHER27 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
1,505,923
Previous report
1,210,209
Avg daily volume
527,840
Days to cover
2.9

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2021-12-06Heckart ChristinePurchase (P)Common Stock400USD 273.03USD 109,212SEC filing ↗

Form 4 evidence

121 transaction lines in the latest 365-day window; 788 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Assaderaghi FariborzSale (S)Common Stock1,374USD 701.05USD 963,243SEC filing ↗
2026-09-11Pangrazio Vincent PSale (S)Common Stock3,000USD 625.00USD 1,875,000SEC filing ↗
2026-09-09VASHIST RAJESHSale (S)Common Stock12,000USD 603.47USD 7,241,640SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Assaderaghi FariborzSale (S)Common Stock1,374USD 701.05USD 963,243SEC filing ↗
2026-09-11Pangrazio Vincent PSale (S)Common Stock3,000USD 625.00USD 1,875,000SEC filing ↗
2026-09-09VASHIST RAJESHSale (S)Common Stock12,000USD 603.47USD 7,241,640SEC filing ↗
2026-09-09VASHIST RAJESHGift (G)Common Stock—USD —USD —SEC filing ↗
2026-08-31VASHIST RAJESHGift (G)Common Stock1,950USD 0.00USD 0SEC filing ↗
2026-08-20VASHIST RAJESHTax withholding (F)Common Stock29,054USD 598.81USD 17,397,826SEC filing ↗
2026-08-20Sevalia Piyush BTax withholding (F)Common Stock9,701USD 598.81USD 5,809,056SEC filing ↗
2026-08-20Pangrazio Vincent PTax withholding (F)Common Stock5,419USD 598.81USD 3,244,951SEC filing ↗
2026-08-20Howe Elizabeth A.Tax withholding (F)Common Stock2,740USD 598.81USD 1,640,739SEC filing ↗
2026-08-20Bonnot LionelTax withholding (F)Common Stock9,630USD 598.81USD 5,766,540SEC filing ↗
2026-08-20Assaderaghi FariborzTax withholding (F)Common Stock9,701USD 598.81USD 5,809,056SEC filing ↗
2026-08-20Ahamad SamsheerTax withholding (F)Common Stock1,484USD 598.81USD 888,634SEC filing ↗
2026-08-17Frank Edward H.Sale (S)Common Stock1,000USD 745.00USD 745,000SEC filing ↗
2026-08-17Kreindl TorstenSale (S)Common Stock345USD 750.12USD 258,791SEC filing ↗
2026-08-14Kreindl TorstenSale (S)Common Stock350USD 700.00USD 245,000SEC filing ↗
2026-08-11SCHUELKE KATHERINESale (S)Common Stock500USD 698.05USD 349,025SEC filing ↗
2026-08-10Bonnot LionelSale (S)Common Stock1,500USD 725.00USD 1,087,500SEC filing ↗
2026-08-07Kreindl TorstenSale (S)Common Stock1,050USD 721.67USD 757,750SEC filing ↗
2026-06-15VASHIST RAJESHSale (S)Common Stock20,000USD 750.15USD 15,003,000SEC filing ↗
2026-06-15Bonnot LionelSale (S)Common Stock500USD 736.02USD 368,010SEC filing ↗
2026-06-12Pangrazio Vincent PSale (S)Common Stock2,000USD 725.32USD 1,450,640SEC filing ↗
2026-06-12Chitkara RamanSale (S)Common Stock2,000USD 727.38USD 1,454,760SEC filing ↗
2026-06-11Bonnot LionelSale (S)Common Stock1,000USD 700.00USD 700,000SEC filing ↗
2026-06-04Assaderaghi FariborzSale (S)Common Stock1,000USD 710.79USD 710,794SEC filing ↗
2026-06-03VASHIST RAJESHSale (S)Common Stock40,000USD 701.13USD 28,045,200SEC filing ↗
2026-06-03Assaderaghi FariborzSale (S)Common Stock1,000USD 702.90USD 702,900SEC filing ↗
2026-06-02Heckart ChristineSale (S)Common Stock1,290USD 700.00USD 903,000SEC filing ↗
2026-06-01Takata AkiraAward / grant (A)Common Stock390USD 0.00USD 0SEC filing ↗
2026-06-01SCHUELKE KATHERINEAward / grant (A)Common Stock390USD 0.00USD 0SEC filing ↗
2026-06-01MOORTHY GANESHAward / grant (A)Common Stock390USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerSITM
CIK0001451809
SectorTechnology
IndustrySemiconductors Yahoo Finance
SEC SIC3674 Semiconductors & Related Devices
ExchangeNasdaq

Data coverage

Local Form 4 history788 transaction lines from 2020-01-21 to 2026-10-02
1 P purchase lines · 445 S sale lines · 342 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.