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

CIENA CORP

CIEN · NYSE · CIK 0000936395 · Technology · Communication Equipment

INSIDER SIGNAL

No active buy signal

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

108 Form 4 transaction lines observed in the same window
36 sales · 72 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
SMITH GARY BPresident & CEO
▼▼▼▼○▼▼▼▼▼▼○▼
Gage BrodieEVP & Chief Product &
▼▼○▼▼▼○
Graff Marc D.SVP & Chief Financial Officer
○▼▼○▼○▼
Rothenstein David MSVP and Chief Strategy Officer
▼▼○▼▼▼○
DiPerna DinoEVP & Chief R&D Officer
○▼▼▼○
Cumello JosephEVP & General Mgr.
○▼○▼
● 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
85Sales
192Other Form 4 lines
119SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING36 sale line(s) · context only
OTHER72 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
3,868,972
Previous report
3,590,902
Avg daily volume
2,681,505
Days to cover
1.4

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

277 transaction lines in the latest 365-day window; 1,910 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01SMITH GARY BSale (S)Common Stock2,952USD 369.66USD 1,091,238SEC filing ↗
2026-10-01Phipps JasonSale (S)Common Stock2,629USD 355.19USD 933,795SEC filing ↗
2026-10-01Kosaraju SheelaSale (S)Common Stock2,101USD 355.19USD 746,254SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01SMITH GARY BSale (S)Common Stock2,952USD 369.66USD 1,091,238SEC filing ↗
2026-10-01Phipps JasonSale (S)Common Stock2,629USD 355.19USD 933,795SEC filing ↗
2026-10-01Kosaraju SheelaSale (S)Common Stock2,101USD 355.19USD 746,254SEC filing ↗
2026-10-01Graff Marc D.Sale (S)Common Stock97USD 355.19USD 34,453SEC filing ↗
2026-09-25Cumello JosephSale (S)Common Stock1,586USD 358.52USD 568,613SEC filing ↗
2026-09-24Claflin Bruce L.Sale (S)Common Stock2,857USD 355.91USD 1,016,835SEC filing ↗
2026-09-24NEVENS THOMAS MICHAELGift (G)Common Stock2,797USD —USD —SEC filing ↗
2026-09-23NEVENS THOMAS MICHAELSale (S)Common Stock3,738USD 359.04USD 1,342,092SEC filing ↗
2026-09-20SMITH GARY BTax withholding (F)Common Stock8,767USD 348.80USD 3,057,930SEC filing ↗
2026-09-20Rothenstein David MTax withholding (F)Common Stock2,350USD 348.80USD 819,680SEC filing ↗
2026-09-20Phipps JasonTax withholding (F)Common Stock2,365USD 348.80USD 824,912SEC filing ↗
2026-09-20Kosaraju SheelaTax withholding (F)Common Stock1,915USD 348.80USD 667,952SEC filing ↗
2026-09-20Hoffman GrantTax withholding (F)Common Stock170USD 348.80USD 59,296SEC filing ↗
2026-09-20Graff Marc D.Tax withholding (F)Common Stock286USD 348.80USD 99,757SEC filing ↗
2026-09-20Gage BrodieTax withholding (F)Common Stock1,934USD 348.80USD 674,579SEC filing ↗
2026-09-20DiPerna DinoTax withholding (F)Common Stock2,053USD 348.80USD 716,086SEC filing ↗
2026-09-20Cumello JosephTax withholding (F)Common Stock1,716USD 348.80USD 598,541SEC filing ↗
2026-09-16DiPerna DinoSale (S)Common Stock249USD 350.00USD 87,150SEC filing ↗
2026-09-15SMITH GARY BSale (S)Common Stock2,952USD 330.18USD 974,691SEC filing ↗
2026-09-15Rothenstein David MSale (S)Common Stock2,500USD 330.48USD 826,200SEC filing ↗
2026-09-15Gage BrodieSale (S)Common Stock1,200USD 324.86USD 389,832SEC filing ↗
2026-09-15DiPerna DinoSale (S)Common Stock249USD 324.86USD 80,890SEC filing ↗
2026-09-01SMITH GARY BSale (S)Common Stock2,952USD 362.90USD 1,071,281SEC filing ↗
2026-08-17SMITH GARY BSale (S)Common Stock2,952USD 447.78USD 1,321,847SEC filing ↗
2026-08-17Gage BrodieSale (S)Common Stock1,200USD 439.24USD 527,088SEC filing ↗
2026-08-14Rothenstein David MSale (S)Common Stock2,500USD 438.10USD 1,095,250SEC filing ↗
2026-08-14Graff Marc D.Sale (S)Common Stock4,995USD 430.72USD 2,151,446SEC filing ↗
2026-08-03SMITH GARY BSale (S)Common Stock2,952USD 379.81USD 1,121,199SEC filing ↗
2026-08-01Graff Marc D.Tax withholding (F)Common Stock14,441USD 377.05USD 5,444,979SEC filing ↗
2026-07-15SMITH GARY BSale (S)Common Stock2,952USD 421.10USD 1,243,087SEC 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 · —
TickerCIEN
CIK0000936395
SectorTechnology
IndustryCommunication Equipment Yahoo Finance
SEC SIC3661 Telephone & Telegraph Apparatus
ExchangeNYSE

Data coverage

Local Form 4 history1,910 transaction lines from 2020-01-03 to 2026-10-01
0 P purchase lines · 572 S sale lines · 1,338 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.