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

Ceribell, Inc.

CBLL · Nasdaq · CIK 0001861107 · Healthcare · Medical Devices

INSIDER SIGNAL

No active buy signal

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

76 Form 4 transaction lines observed in the same window
41 sales · 35 option, withholding, award, gift or other lines

Last qualifying purchase2024-10-15 · BONDERMAN DAVID; COULTER JAMES G; TPG GP A, LLC; WINKELRIED JON · $6.5M

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
Chao XingjuanPresident and CEO
○▼▼○▼○▼○▼○▼▼▼○▼▼
Blumberg ScottChief Financial Officer
▼○▼○▼▼○▼○▼
Woo RaymondChief Technology Officer
▼▼○▼○▼
Foehr DavidSenior VP, Finance and PAO
▼▼▼▼○▼
Taylor Joseph MichaelDirector
○▼▼
BURKE WILLIAM WDirector
○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 8 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: 2024-10-15 · BONDERMAN DAVID; COULTER JAMES G; TPG GP A, LLC; WINKELRIED JON.

Recent Form 4 activity

0Purchases
100Sales
92Other Form 4 lines
76SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING41 sale line(s) · context only
OTHER35 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
2,017,836
Previous report
1,818,916
Avg daily volume
400,380
Days to cover
5.0

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
2024-10-15BONDERMAN DAVID; COULTER JAMES G; TPG GP A, LLC; WINKELRIED JONPurchase (P)Common Stock380,268USD 17.00USD 6,464,556SEC filing ↗
2024-10-15Tammenoms Bakker JulietPurchase (P)Common Stock237,234USD 17.00USD 4,032,978SEC filing ↗

Form 4 evidence

192 transaction lines in the latest 365-day window; 255 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Woo RaymondSale (S)Common Stock4,887USD 24.38USD 119,145SEC filing ↗
2026-10-01Woo RaymondOption exercise / conversion (M)Common Stock4,887USD 3.65USD 17,862SEC filing ↗
2026-09-15Chao XingjuanSale (S)Common Stock20,846USD 25.03USD 521,775SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Woo RaymondSale (S)Common Stock4,887USD 24.38USD 119,145SEC filing ↗
2026-10-01Woo RaymondOption exercise / conversion (M)Common Stock4,887USD 3.65USD 17,862SEC filing ↗
2026-09-15Chao XingjuanSale (S)Common Stock20,846USD 25.03USD 521,775SEC filing ↗
2026-09-15Blumberg ScottSale (S)Common Stock846USD 25.00USD 21,150SEC filing ↗
2026-09-15Blumberg ScottOption exercise / conversion (M)Common Stock846USD 9.41USD 7,961SEC filing ↗
2026-09-08Woo RaymondSale (S)Common Stock4,887USD 24.33USD 118,901SEC filing ↗
2026-09-08Woo RaymondOption exercise / conversion (M)Common Stock13,276USD 2.76USD 36,653SEC filing ↗
2026-09-08Foehr DavidSale (S)Common Stock9,255USD 24.25USD 224,451SEC filing ↗
2026-09-08Foehr DavidOption exercise / conversion (M)Common Stock7,500USD 4.70USD 35,250SEC filing ↗
2026-09-02Chao XingjuanSale (S)Common Stock39,540USD 24.61USD 973,079SEC filing ↗
2026-09-02Chao XingjuanOption exercise / conversion (M)Common Stock25,000USD 4.70USD 117,500SEC filing ↗
2026-09-02Blumberg ScottSale (S)Common Stock652USD 25.00USD 16,300SEC filing ↗
2026-09-02Blumberg ScottOption exercise / conversion (M)Common Stock652USD 9.41USD 6,135SEC filing ↗
2026-08-24Foehr DavidSale (S)Common Stock859USD 23.95USD 20,573SEC filing ↗
2026-08-21Woo RaymondSale (S)Common Stock1,979USD 24.02USD 47,536SEC filing ↗
2026-08-21Manni Joseph S.Sale (S)Common Stock1,361USD 24.02USD 32,691SEC filing ↗
2026-08-21Foehr DavidSale (S)Common Stock993USD 24.02USD 23,852SEC filing ↗
2026-08-21Chao XingjuanSale (S)Common Stock6,068USD 24.02USD 145,753SEC filing ↗
2026-08-21Blumberg ScottSale (S)Common Stock1,521USD 24.02USD 36,534SEC filing ↗
2026-08-19Chao XingjuanSale (S)Common Stock31,415USD 25.03USD 786,317SEC filing ↗
2026-08-19Blumberg ScottSale (S)Common Stock33,512USD 25.03USD 838,805SEC filing ↗
2026-08-19Blumberg ScottOption exercise / conversion (M)Common Stock33,512USD 8.54USD 286,245SEC filing ↗
2026-08-18Chao XingjuanSale (S)Common Stock2,199USD 25.00USD 54,975SEC filing ↗
2026-08-18Blumberg ScottSale (S)Common Stock990USD 25.00USD 24,750SEC filing ↗
2026-08-18Blumberg ScottOption exercise / conversion (M)Common Stock990USD 6.13USD 6,066SEC filing ↗
2026-08-13Chao XingjuanOption exercise / conversion (M)Common Stock33,096USD 3.31USD 109,385SEC filing ↗
2026-08-13Taylor Joseph MichaelSale (S)Common Stock13,095USD 23.40USD 306,423SEC filing ↗
2026-08-03Chao XingjuanSale (S)Common Stock39,000USD 18.32USD 714,480SEC filing ↗
2026-08-03Chao XingjuanOption exercise / conversion (M)Common Stock25,000USD 4.70USD 117,500SEC filing ↗
2026-07-28West Thomas A.Award / grant (A)Common Stock16,011USD 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 · —
TickerCBLL
CIK0001861107
SectorHealthcare
IndustryMedical Devices Yahoo Finance
SEC SIC3845 Electromedical & Electrotherapeutic Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history255 transaction lines from 2024-10-11 to 2026-10-01
2 P purchase lines · 116 S sale lines · 137 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.