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

Cloudflare, Inc.

NET · NYSE · CIK 0001477333 · Technology · Software—Infrastructure

INSIDER SIGNAL

No active buy signal

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

543 Form 4 transaction lines observed in the same window
470 sales · 73 option, withholding, award, gift or other lines

Last qualifying purchase2022-05-09 · Eitel Maria S · $941.6K

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
Zatlyn MichellePRESIDENT & BOARD CO-CHAIR
○○▼○▼○▼○▼○▼○▼○▼○▼○▼
SEIFERT THOMAS JChief Financial Officer
○○▼○○▼
Starzak Alissa MichelleChief Legal Officer
○○▼▼
Riley JanelChief Accounting Officer
○○▼▼
Ledbetter CarlDirector
▼▼
Prince MatthewCEO & Board Co-Chair
○
● 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: 2022-05-09 · Eitel Maria S.

Recent Form 4 activity

0Purchases
843Sales
141Other Form 4 lines
120SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING470 sale line(s) · context only
OTHER73 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
7,664,139
Previous report
7,703,439
Avg daily volume
3,087,871
Days to cover
2.5

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
2022-05-09Eitel Maria SPurchase (P)Class A Common Stock15,000USD 62.77USD 941,607SEC filing ↗

Form 4 evidence

984 transaction lines in the latest 365-day window; 4,958 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-07Zatlyn MichelleSale (S)Class A Common Stock33,003USD 348.29USD 11,494,572SEC filing ↗
2026-10-07Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-10-06Zatlyn MichelleSale (S)Class A Common Stock33,003USD 366.76USD 12,104,181SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-07Zatlyn MichelleSale (S)Class A Common Stock33,003USD 348.29USD 11,494,572SEC filing ↗
2026-10-07Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-10-06Zatlyn MichelleSale (S)Class A Common Stock33,003USD 366.76USD 12,104,181SEC filing ↗
2026-10-06Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-10-05Zatlyn MichelleSale (S)Class A Common Stock33,003USD 352.60USD 11,636,907SEC filing ↗
2026-10-05Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-09-22Ledbetter CarlSale (S)Class A Common Stock5,000USD 353.15USD 1,765,750SEC filing ↗
2026-09-17SEIFERT THOMAS JSale (S)Class A Common Stock10,000USD 332.46USD 3,324,624SEC filing ↗
2026-09-17SEIFERT THOMAS JC (C)Class A Common Stock10,000USD —USD —SEC filing ↗
2026-09-15SEIFERT THOMAS JTax withholding (F)Class A Common Stock2,944USD 327.23USD 963,365SEC filing ↗
2026-09-14Ledbetter CarlSale (S)Class A Common Stock5,000USD 312.22USD 1,561,083SEC filing ↗
2026-09-08Zatlyn MichelleSale (S)Class A Common Stock33,003USD 277.43USD 9,156,072SEC filing ↗
2026-09-08Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-09-04Zatlyn MichelleSale (S)Class A Common Stock33,003USD 281.67USD 9,295,858SEC filing ↗
2026-09-04Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-09-03Zatlyn MichelleSale (S)Class A Common Stock33,003USD 278.92USD 9,205,159SEC filing ↗
2026-09-03Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-08-21Zatlyn MichelleSale (S)Class A Common Stock33,003USD 277.43USD 9,156,138SEC filing ↗
2026-08-21Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-08-20Zatlyn MichelleSale (S)Class A Common Stock33,003USD 285.06USD 9,407,947SEC filing ↗
2026-08-20Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-08-19Zatlyn MichelleSale (S)Class A Common Stock33,003USD 294.63USD 9,723,555SEC filing ↗
2026-08-19Zatlyn MichelleC (C)Class A Common Stock33,003USD —USD —SEC filing ↗
2026-08-18Starzak Alissa MichelleSale (S)Class A Common Stock2,538USD 304.68USD 773,278SEC filing ↗
2026-08-18Riley JanelSale (S)Class A Common Stock3,481USD 305.27USD 1,062,629SEC filing ↗
2026-08-17Starzak Alissa MichelleSale (S)Class A Common Stock3,333USD 310.15USD 1,033,743SEC filing ↗
2026-08-17Starzak Alissa MichelleOption exercise / conversion (M)Class A Common Stock3,333USD 77.70USD 258,974SEC filing ↗
2026-08-17SEIFERT THOMAS JSale (S)Class A Common Stock10,000USD 307.32USD 3,073,159SEC filing ↗
2026-08-17SEIFERT THOMAS JC (C)Class A Common Stock10,000USD —USD —SEC filing ↗
2026-08-17Riley JanelSale (S)Class A Common Stock1,667USD 310.36USD 517,372SEC 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 · —
TickerNET
CIK0001477333
SectorTechnology
IndustrySoftware—Infrastructure Yahoo Finance
SEC SIC7372 Services-Prepackaged Software
ExchangeNYSE

Data coverage

Local Form 4 history4,958 transaction lines from 2020-02-19 to 2026-10-07
3 P purchase lines · 3,753 S sale lines · 1,202 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.