Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-19 · Built: 2026-10-19 · 中文

← United States · Coverage record

US · SEC FORM 4

CareDx, Inc.

CDNA · Nasdaq · CIK 0001217234 · Healthcare · Diagnostics & Research

INSIDER SIGNAL

No active buy signal

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

49 Form 4 transaction lines observed in the same window
18 sales · 31 option, withholding, award, gift or other lines

Last qualifying purchase2021-11-24 · Dhingra Ankur · $211.7K

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.

Purchase breadth, concentration & cluster buying

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

Insider activity timeline

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

AprMayJunJulAugSepOct
Hanna John Walter JRPresident and CEO
○▼○▼○▼○▼○▼○○▼○
Novack Jeffrey AdamSecretary and General Counsel
○▼○○○▼○
Valantine HannahDirector
○▼○▼
Goldberg MichaelDirector
○○▼○
Kennedy KeithCFO & COO
○○○
Meng JessicaChief Commercial Officer
○○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 additional owner(s) remain in Form 4 evidence.

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: 2021-11-24 · Dhingra Ankur.

Recent Form 4 activity

0Purchases
26Sales
59Other Form 4 lines
56SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING18 sale line(s) · context only
OTHER31 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
6,587,070
Previous report
6,297,191
Avg daily volume
1,444,402
Days to cover
4.6

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
2021-11-24Dhingra AnkurPurchase (P)Common Stock5,000USD 42.34USD 211,700SEC filing ↗
2021-11-05TORRES ARTHUR APurchase (P)Common Stock600USD 47.62USD 28,572SEC filing ↗

Form 4 evidence

85 transaction lines in the latest 365-day window; 755 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Goldberg MichaelAward / grant (A)Common Stock588USD 0.00USD 0SEC filing ↗
2026-10-01Novack Jeffrey AdamTax withholding (F)Common Stock997USD 66.23USD 66,031SEC filing ↗
2026-10-01Meng JessicaTax withholding (F)Common Stock2,619USD 66.23USD 173,456SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Goldberg MichaelAward / grant (A)Common Stock588USD 0.00USD 0SEC filing ↗
2026-10-01Novack Jeffrey AdamTax withholding (F)Common Stock997USD 66.23USD 66,031SEC filing ↗
2026-10-01Meng JessicaTax withholding (F)Common Stock2,619USD 66.23USD 173,456SEC filing ↗
2026-10-01Kennedy KeithTax withholding (F)Common Stock3,018USD 66.23USD 199,882SEC filing ↗
2026-10-01Hanna John Walter JRTax withholding (F)Common Stock8,511USD 66.23USD 563,684SEC filing ↗
2026-09-12Meng JessicaTax withholding (F)Common Stock6,688USD 52.37USD 350,251SEC filing ↗
2026-09-12Kennedy KeithTax withholding (F)Common Stock8,220USD 52.37USD 430,481SEC filing ↗
2026-08-05Novack Jeffrey AdamSale (S)Common Stock2,688USD 46.26USD 124,351SEC filing ↗
2026-08-05Bickerstaff GeorgeSale (S)Common Stock20,000USD 46.29USD 925,800SEC filing ↗
2026-08-04Goldberg MichaelSale (S)Common Stock44,700USD 47.06USD 2,103,582SEC filing ↗
2026-08-04COURNOYER CHRISTINESale (S)Common Stock16,000USD 46.94USD 751,040SEC filing ↗
2026-08-01Novack Jeffrey AdamTax withholding (F)Common Stock2,872USD 47.85USD 137,425SEC filing ↗
2026-07-16Valantine HannahSale (S)Common Stock28,779USD 36.14USD 1,040,114SEC filing ↗
2026-07-16Valantine HannahOption exercise / conversion (M)Common Stock28,779USD 14.76USD 424,895SEC filing ↗
2026-07-16Hanna John Walter JRSale (S)Common Stock118,000USD 37.78USD 4,458,180SEC filing ↗
2026-07-16Hanna John Walter JROption exercise / conversion (M)Common Stock118,000USD 8.20USD 967,600SEC filing ↗
2026-07-02Goldberg MichaelAward / grant (A)Common Stock1,746USD 0.00USD 0SEC filing ↗
2026-07-01Hanna John Walter JRTax withholding (F)Common Stock8,511USD 29.25USD 248,947SEC filing ↗
2026-07-01Novack Jeffrey AdamTax withholding (F)Common Stock997USD 29.25USD 29,162SEC filing ↗
2026-07-01Meng JessicaTax withholding (F)Common Stock2,411USD 29.25USD 70,522SEC filing ↗
2026-07-01Kennedy KeithTax withholding (F)Common Stock2,930USD 29.25USD 85,702SEC filing ↗
2026-06-29Hanna John Walter JRSale (S)Common Stock39,900USD 29.24USD 1,166,676SEC filing ↗
2026-06-29Hanna John Walter JROption exercise / conversion (M)Common Stock39,900USD 8.20USD 327,180SEC filing ↗
2026-06-26Hanna John Walter JRSale (S)Common Stock100USD 29.00USD 2,900SEC filing ↗
2026-06-26Hanna John Walter JROption exercise / conversion (M)Common Stock100USD 8.20USD 820SEC filing ↗
2026-06-15Hanna John Walter JROption exercise / conversion (M)Common Stock15,676USD 8.20USD 128,543SEC filing ↗
2026-06-15Hanna John Walter JRSale (S)Common Stock17,683USD 24.03USD 424,922SEC filing ↗
2026-06-15Valantine HannahSale (S)Common Stock12,103USD 23.11USD 279,700SEC filing ↗
2026-06-12Valantine HannahAward / grant (A)Common Stock9,795USD 0.00USD 0SEC filing ↗
2026-06-12Riggsbee Richard BryanAward / grant (A)Common Stock9,795USD 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 date2026-10-19
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerCDNA
CIK0001217234
SectorHealthcare
IndustryDiagnostics & Research Yahoo Finance
SEC SIC8071 Services-Medical Laboratories
ExchangeNasdaq

Data coverage

Local Form 4 history755 transaction lines from 2020-01-02 to 2026-10-02
2 P purchase lines · 249 S sale lines · 504 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.