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

Zoom Communications, Inc.

ZM · Nasdaq · CIK 0001585521 · Technology · Software—Application

INSIDER SIGNAL

No active buy signal

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

126 Form 4 transaction lines observed in the same window
84 sales · 42 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
Yuan Eric S.Chief Executive Officer
○○○○○▼○▼○▼○▼○▼○▼○▼○▼○○
Sankarlingam VelchamyPres. of Engineering & Product
○○○○▼○○▼○○▼
Chang MichelleChief Financial Officer
▼○○▼○○▼
Subotovsky SantiagoDirector
○▼▼▼▼
McGarry Kimberly JChief Accounting Officer
○○○○○
McMaster Herbert RaymondDirector
○▼▼
● 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
183Sales
87Other Form 4 lines
62SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING84 sale line(s) · context only
OTHER42 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
6,237,211
Previous report
7,058,003
Avg daily volume
2,985,075
Days to cover
2.1

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

270 transaction lines in the latest 365-day window; 3,470 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-13McGarry Kimberly JTax withholding (F)Class A Common Stock8,692USD 97.56USD 847,961SEC filing ↗
2026-10-12Sankarlingam VelchamySale (S)Class A Common Stock7,645USD 99.26USD 758,875SEC filing ↗
2026-10-12Chang MichelleSale (S)Class A Common Stock8,489USD 99.46USD 844,341SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-13McGarry Kimberly JTax withholding (F)Class A Common Stock8,692USD 97.56USD 847,961SEC filing ↗
2026-10-12Sankarlingam VelchamySale (S)Class A Common Stock7,645USD 99.26USD 758,875SEC filing ↗
2026-10-12Chang MichelleSale (S)Class A Common Stock8,489USD 99.46USD 844,341SEC filing ↗
2026-10-09Yuan Eric S.Option exercise / conversion (M)Class A Common Stock46,823USD 94.67USD 4,432,733SEC filing ↗
2026-10-09Yuan Eric S.Tax withholding (F)Class A Common Stock23,824USD 85.68USD 2,041,240SEC filing ↗
2026-10-09Sankarlingam VelchamyOption exercise / conversion (M)Class A Common Stock20,752USD 0.00USD 0SEC filing ↗
2026-10-09Sankarlingam VelchamyTax withholding (F)Class A Common Stock10,559USD 94.67USD 999,621SEC filing ↗
2026-10-09McGarry Kimberly JOption exercise / conversion (M)Class A Common Stock3,121USD 0.00USD 0SEC filing ↗
2026-10-09McGarry Kimberly JTax withholding (F)Class A Common Stock1,383USD 94.67USD 130,929SEC filing ↗
2026-10-09Chang MichelleOption exercise / conversion (M)Class A Common Stock22,218USD 0.00USD 0SEC filing ↗
2026-10-09Chang MichelleTax withholding (F)Class A Common Stock8,743USD 94.67USD 827,700SEC filing ↗
2026-10-08McMaster Herbert RaymondSale (S)Class A Common Stock3,000USD 94.71USD 284,120SEC filing ↗
2026-10-06Yuan Eric S.Sale (S)Class A Common Stock12,100USD 94.07USD 1,138,298SEC filing ↗
2026-10-06Yuan Eric S.C (C)Class A Common Stock12,100USD 0.00USD 0SEC filing ↗
2026-10-05Yuan Eric S.Sale (S)Class A Common Stock12,100USD 93.74USD 1,134,303SEC filing ↗
2026-10-05Yuan Eric S.C (C)Class A Common Stock12,100USD 0.00USD 0SEC filing ↗
2026-10-05Subotovsky SantiagoSale (S)Class A Common Stock2,637USD 93.74USD 247,195SEC filing ↗
2026-09-10Sankarlingam VelchamySale (S)Class A Common Stock2,590USD 95.81USD 248,144SEC filing ↗
2026-09-09Sankarlingam VelchamyOption exercise / conversion (M)Class A Common Stock7,031USD 0.00USD 0SEC filing ↗
2026-09-09Sankarlingam VelchamyTax withholding (F)Class A Common Stock3,579USD 96.44USD 345,159SEC filing ↗
2026-09-08Subotovsky SantiagoSale (S)Class A Common Stock2,637USD 96.63USD 254,815SEC filing ↗
2026-09-02Yuan Eric S.Sale (S)Class A Common Stock12,100USD 95.82USD 1,159,440SEC filing ↗
2026-09-02Yuan Eric S.C (C)Class A Common Stock12,100USD 0.00USD 0SEC filing ↗
2026-09-01Yuan Eric S.Sale (S)Class A Common Stock12,100USD 95.34USD 1,153,618SEC filing ↗
2026-09-01Yuan Eric S.C (C)Class A Common Stock12,100USD 0.00USD 0SEC filing ↗
2026-08-06Yuan Eric S.Sale (S)Class A Common Stock12,100USD 100.20USD 1,212,374SEC filing ↗
2026-08-06Yuan Eric S.C (C)Class A Common Stock12,100USD 0.00USD 0SEC filing ↗
2026-08-05Yuan Eric S.Sale (S)Class A Common Stock12,100USD 100.17USD 1,212,096SEC filing ↗
2026-08-05Yuan Eric S.C (C)Class A Common Stock12,100USD 0.00USD 0SEC filing ↗
2026-08-04Subotovsky SantiagoSale (S)Class A Common Stock7,911USD 101.33USD 801,657SEC 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 · —
TickerZM
CIK0001585521
SectorTechnology
IndustrySoftware—Application Yahoo Finance
SEC SIC7370 Services-Computer Programming, Data Processing, Etc.
ExchangeNasdaq

Data coverage

Local Form 4 history3,470 transaction lines from 2020-01-03 to 2026-10-13
0 P purchase lines · 2,570 S sale lines · 900 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.