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

CISCO SYSTEMS, INC.

CSCO · Nasdaq · CIK 0000858877 · Technology · Communication Equipment

INSIDER SIGNAL

No active buy signal

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

86 Form 4 transaction lines observed in the same window
49 sales · 37 option, withholding, award, gift or other lines

Last qualifying purchaseNo qualifying purchase is present in the local Form 4 history.

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
Tuszik OliverEVP, Global Sales
▼○▼○○▼○▼○○
Subaiya Thimaya K.EVP, Operations
○▼○▼○▼○
Patterson MarkEVP and CFO
○▼○▼○▼○
Robbins CharlesChair and CEO
▼○▼○
Fink Nichlas ASVP, Chief Accounting Officer
○○▼○
Stahlkopf Deborah LEVP and Chief Legal Officer
○▼○
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 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.—

Recent Form 4 activity

0Purchases
95Sales
83Other Form 4 lines
104SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING49 sale line(s) · context only
OTHER37 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
51,066,484
Previous report
57,677,354
Avg daily volume
22,106,294
Days to cover
2.3

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

No qualifying code P equity purchase is present in the local Form 4 history.

Form 4 evidence

178 transaction lines in the latest 365-day window; 789 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-10Tuszik OliverTax withholding (F)Common Stock2,260USD 118.39USD 267,513SEC filing ↗
2026-10-09Rishi Girish DAward / grant (A)Common Stock419USD 0.00USD 0SEC filing ↗
2026-09-16Tuszik OliverAward / grant (A)Common Stock69,613USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-10Tuszik OliverTax withholding (F)Common Stock2,260USD 118.39USD 267,513SEC filing ↗
2026-10-09Rishi Girish DAward / grant (A)Common Stock419USD 0.00USD 0SEC filing ↗
2026-09-16Tuszik OliverAward / grant (A)Common Stock69,613USD 0.00USD 0SEC filing ↗
2026-09-16Subaiya Thimaya K.Award / grant (A)Common Stock55,690USD 0.00USD 0SEC filing ↗
2026-09-16Stahlkopf Deborah LAward / grant (A)Common Stock55,690USD 0.00USD 0SEC filing ↗
2026-09-16Robbins CharlesAward / grant (A)Common Stock167,069USD 0.00USD 0SEC filing ↗
2026-09-16Patterson MarkAward / grant (A)Common Stock92,817USD 0.00USD 0SEC filing ↗
2026-09-16Patel Jeetendra IAward / grant (A)Common Stock139,225USD 0.00USD 0SEC filing ↗
2026-09-16Fink Nichlas AAward / grant (A)Common Stock7,826USD 0.00USD 0SEC filing ↗
2026-09-15Weil KevinAward / grant (A)Common Stock274USD 110.07USD 30,159SEC filing ↗
2026-09-15Tessel MariannaAward / grant (A)Common Stock274USD 110.07USD 30,159SEC filing ↗
2026-09-15JOHNSON KRISTINA MAward / grant (A)Common Stock417USD 110.07USD 45,899SEC filing ↗
2026-09-14Tuszik OliverSale (S)Common Stock680USD 110.18USD 74,922SEC filing ↗
2026-09-14Subaiya Thimaya K.Sale (S)Common Stock312USD 110.18USD 34,376SEC filing ↗
2026-09-11Patterson MarkSale (S)Common Stock1,795USD 108.87USD 195,422SEC filing ↗
2026-09-10Tuszik OliverTax withholding (F)Common Stock1,260USD 109.43USD 137,848SEC filing ↗
2026-09-10Subaiya Thimaya K.Tax withholding (F)Common Stock409USD 109.43USD 44,761SEC filing ↗
2026-09-10Patterson MarkTax withholding (F)Common Stock1,553USD 109.43USD 169,961SEC filing ↗
2026-09-08Fink Nichlas ASale (S)Common Stock2,274USD 109.36USD 248,685SEC filing ↗
2026-08-19Subaiya Thimaya K.Sale (S)Common Stock5,832USD 111.46USD 650,056SEC filing ↗
2026-08-14Tuszik OliverSale (S)Common Stock2,760USD 112.46USD 310,390SEC filing ↗
2026-08-14Stahlkopf Deborah LSale (S)Common Stock6,487USD 111.53USD 723,474SEC filing ↗
2026-08-14Robbins CharlesSale (S)Common Stock21,628USD 111.53USD 2,412,250SEC filing ↗
2026-08-14Patterson MarkSale (S)Common Stock5,192USD 111.51USD 578,983SEC filing ↗
2026-08-14Patel Jeetendra ISale (S)Common Stock7,170USD 111.57USD 799,927SEC filing ↗
2026-08-10Tuszik OliverTax withholding (F)Common Stock3,146USD 121.43USD 381,967SEC filing ↗
2026-08-10Subaiya Thimaya K.Tax withholding (F)Common Stock7,646USD 121.43USD 928,462SEC filing ↗
2026-08-10Stahlkopf Deborah LTax withholding (F)Common Stock4,209USD 121.43USD 511,078SEC filing ↗
2026-08-10Robbins CharlesTax withholding (F)Common Stock15,656USD 121.43USD 1,901,102SEC filing ↗
2026-08-10Patterson MarkTax withholding (F)Common Stock4,066USD 121.43USD 493,681SEC 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 · —
TickerCSCO
CIK0000858877
SectorTechnology
IndustryCommunication Equipment Yahoo Finance
SEC SIC3576 Computer Communications Equipment
ExchangeNasdaq

Data coverage

Local Form 4 history789 transaction lines from 2020-01-27 to 2026-10-10
0 P purchase lines · 311 S sale lines · 478 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.