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

Natera, Inc.

NTRA · Nasdaq · CIK 0001604821 · Healthcare · Diagnostics & Research

INSIDER SIGNAL

No active buy signal

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

315 Form 4 transaction lines observed in the same window
282 sales · 33 option, withholding, award, gift or other lines

Last qualifying purchase2022-05-12 · Rabinowitz Matthew · $6.3M

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
Rabinowitz MatthewEXECUTIVE CHAIRMAN
▼▼▼▼▼▼▼○○▼▼
Sheena JonathanDirector,Other
▼▼▼▼▼▼▼▼▼▼
Moshkevich SolomonPRESIDENT, CLINICALDIAGNOSTICS
▼▼▼▼▼▼○▼
Chapman Steven LeonardCEO AND PRESIDENT
▼▼▼▼▼
Fesko JohnPRESIDENT, CHIEF BUS. OFFICER
▼▼▼○▼
Brophy Michael BurkesCHIEF FINANCIAL OFFICER
▼▼▼▼▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 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: 2022-05-12 · Rabinowitz Matthew.

Recent Form 4 activity

0Purchases
504Sales
98Other Form 4 lines
173SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING282 sale line(s) · context only
OTHER33 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
6,355,450
Previous report
4,797,175
Avg daily volume
1,983,053
Days to cover
3.2

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
2022-05-12Rabinowitz MatthewPurchase (P)Common Stock219,820USD 28.74USD 6,317,734SEC filing ↗
2022-03-16BOTHA ROELOFPurchase (P)Common Stock153,000USD 32.71USD 5,005,206SEC filing ↗
2021-07-22HEALY JAMESPurchase (P)Common Stock2,400USD 113.00USD 271,200SEC filing ↗

Form 4 evidence

602 transaction lines in the latest 365-day window; 2,649 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15Rabinowitz MatthewSale (S)Common Stock49,400USD 402.70USD 19,893,174SEC filing ↗
2026-10-15Rabinowitz MatthewSale (S)Common Stock600USD 398.09USD 238,854SEC filing ↗
2026-10-15Rabinowitz MatthewOption exercise / conversion (M)Common Stock50,000USD 10.41USD 520,500SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15Rabinowitz MatthewSale (S)Common Stock49,400USD 402.70USD 19,893,174SEC filing ↗
2026-10-15Rabinowitz MatthewSale (S)Common Stock600USD 398.09USD 238,854SEC filing ↗
2026-10-15Rabinowitz MatthewOption exercise / conversion (M)Common Stock50,000USD 10.41USD 520,500SEC filing ↗
2026-10-07Rabinowitz MatthewGift (G)Common Stock6,000USD 0.00USD 0SEC filing ↗
2026-10-01Moshkevich SolomonSale (S)Common Stock3,000USD 414.22USD 1,242,645SEC filing ↗
2026-10-01Chapman Steven LeonardSale (S)Common Stock1,273USD 413.31USD 526,144SEC filing ↗
2026-09-23Sheena JonathanSale (S)Common Stock18,064USD 388.01USD 7,008,974SEC filing ↗
2026-09-16Moshkevich SolomonGift (G)Common Stock945USD 0.00USD 0SEC filing ↗
2026-09-16Sheena JonathanSale (S)Common Stock3,150USD 354.20USD 1,115,716SEC filing ↗
2026-09-15Sheena JonathanSale (S)Common Stock6,000USD 350.07USD 2,100,420SEC filing ↗
2026-09-15Rabinowitz MatthewSale (S)Common Stock52,000USD 347.30USD 18,059,409SEC filing ↗
2026-09-14Rabinowitz MatthewSale (S)Common Stock50,000USD 334.76USD 16,738,080SEC filing ↗
2026-09-11Rabinowitz MatthewSale (S)Common Stock50,000USD 327.96USD 16,398,181SEC filing ↗
2026-09-02Moshkevich SolomonSale (S)Common Stock15,160USD 326.89USD 4,955,652SEC filing ↗
2026-09-01Moshkevich SolomonSale (S)Common Stock3,000USD 320.73USD 962,194SEC filing ↗
2026-09-01Chapman Steven LeonardSale (S)Common Stock1,698USD 320.99USD 545,041SEC filing ↗
2026-08-10Fesko JohnSale (S)Common Stock6,517USD 321.53USD 2,095,411SEC filing ↗
2026-08-10Sheena JonathanSale (S)Common Stock6,000USD 325.32USD 1,951,920SEC filing ↗
2026-08-07Sheena JonathanSale (S)Common Stock9,150USD 315.66USD 2,888,322SEC filing ↗
2026-08-07Rabinowitz MatthewSale (S)Common Stock2,000USD 320.90USD 641,800SEC filing ↗
2026-08-06Fesko JohnAward / grant (A)Common Stock20,000USD 0.00USD 0SEC filing ↗
2026-08-04Brophy Michael BurkesSale (S)Common Stock478USD 274.22USD 131,077SEC filing ↗
2026-08-03Sheena JonathanSale (S)Common Stock109USD 267.99USD 29,211SEC filing ↗
2026-08-03Rabinowitz MatthewSale (S)Common Stock731USD 267.99USD 195,901SEC filing ↗
2026-08-03RABINOWITZ DANIELSale (S)Common Stock334USD 267.99USD 89,509SEC filing ↗
2026-08-03Moshkevich SolomonSale (S)Common Stock3,410USD 265.58USD 905,632SEC filing ↗
2026-08-03Fesko JohnSale (S)Common Stock295USD 267.99USD 79,057SEC filing ↗
2026-08-03Chapman Steven LeonardSale (S)Common Stock3,076USD 266.39USD 819,430SEC filing ↗
2026-08-03Brophy Michael BurkesSale (S)Common Stock317USD 267.99USD 84,953SEC filing ↗
2026-07-29Brophy Michael BurkesSale (S)Common Stock1,863USD 249.38USD 464,595SEC 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 · —
TickerNTRA
CIK0001604821
SectorHealthcare
IndustryDiagnostics & Research Yahoo Finance
SEC SIC8071 Services-Medical Laboratories
ExchangeNasdaq

Data coverage

Local Form 4 history2,649 transaction lines from 2020-01-02 to 2026-10-15
7 P purchase lines · 1,657 S sale lines · 985 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.