Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

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US · SEC FORM 4

VirnetX Holding Corp

VHC · Nasdaq · CIK 0001082324 · Technology · Software—Infrastructure

INSIDER SIGNAL

No active buy signal

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

16 Form 4 transaction lines observed in the same window
11 sales · 5 option, withholding, award, gift or other lines

Last qualifying purchase2024-05-24 · Larsen Kendall · $4.1K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
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
Larsen KendallPresident & CEO
▼▼▼▼▼▼
Feiner GaryDirector
○▼▼
Angelo Michael FDirector
○▼
O'BRIEN THOMAS MDirector
○
Chow Heidy KingwanDirector
○
Allanson KatherineChief Financial Officer
○
● Purchase▼ Sale○ Other

—

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: 2024-05-24 · Larsen Kendall.

Recent Form 4 activity

0Purchases
13Sales
6Other Form 4 lines
12SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING11 sale line(s) · context only
OTHER5 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
145,302
Previous report
136,645
Avg daily volume
65,252
Days to cover
2.2

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
2024-05-24Larsen KendallPurchase (P)Common Stock1,000USD 4.14USD 4,140SEC filing ↗
2024-05-23Larsen KendallPurchase (P)Common Stock1,875USD 4.65USD 8,719SEC filing ↗
2024-05-22Larsen KendallPurchase (P)Common Stock2USD 4.65USD 9SEC filing ↗
2024-05-21Larsen KendallPurchase (P)Common Stock258USD 4.65USD 1,200SEC filing ↗
2023-06-05Larsen KendallPurchase (P)Common Stock27,974USD 0.38USD 10,630SEC filing ↗
2023-05-26Larsen KendallPurchase (P)Common Stock2,000USD 0.43USD 860SEC filing ↗
2023-05-25Angelo Michael FPurchase (P)Common Stock23,000USD 0.43USD 9,890SEC filing ↗
2023-05-18Larsen KendallPurchase (P)Common Stock104,166USD 0.45USD 46,875SEC filing ↗
2023-05-18O'BRIEN THOMAS MPurchase (P)Common Stock50,000USD 0.42USD 21,000SEC filing ↗
2022-05-25Larsen KendallPurchase (P)Common Stock1,870USD 1.13USD 2,113SEC filing ↗
2022-05-24Larsen KendallPurchase (P)Common Stock13,829USD 1.20USD 16,595SEC filing ↗
2022-05-23Larsen KendallPurchase (P)Common Stock2,431USD 1.20USD 2,917SEC filing ↗
2022-05-20Larsen KendallPurchase (P)Common Stock40,650USD 1.20USD 48,780SEC filing ↗
2021-11-29Larsen KendallPurchase (P)Common Stock5,000USD 2.67USD 13,350SEC filing ↗
2021-11-24Larsen KendallPurchase (P)Common Stock20,000USD 2.92USD 58,400SEC filing ↗

Form 4 evidence

19 transaction lines in the latest 365-day window; 92 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Angelo Michael FSale (S)Common Stock1,000USD 10.26USD 10,255SEC filing ↗
2026-09-14Larsen KendallSale (S)Common Stock4,425USD 11.17USD 49,427SEC filing ↗
2026-09-11Larsen KendallSale (S)Common Stock8,000USD 11.37USD 90,960SEC filing ↗
Show recent Form 4 evidence (17 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Angelo Michael FSale (S)Common Stock1,000USD 10.26USD 10,255SEC filing ↗
2026-09-14Larsen KendallSale (S)Common Stock4,425USD 11.17USD 49,427SEC filing ↗
2026-09-11Larsen KendallSale (S)Common Stock8,000USD 11.37USD 90,960SEC filing ↗
2026-09-10Larsen KendallSale (S)Common Stock8,000USD 11.48USD 91,840SEC filing ↗
2026-09-02Larsen KendallSale (S)Common Stock4,575USD 11.51USD 52,655SEC filing ↗
2026-09-01Larsen KendallSale (S)Common Stock5,000USD 11.00USD 55,000SEC filing ↗
2026-09-01Feiner GarySale (S)Common Stock3,750USD 11.00USD 41,250SEC filing ↗
2026-08-31Larsen KendallSale (S)Common Stock5,000USD 11.17USD 55,850SEC filing ↗
2026-08-31Feiner GarySale (S)Common Stock3,750USD 11.17USD 41,888SEC filing ↗
2026-07-06Allanson KatherineTax withholding (F)Common Stock100USD 11.95USD 1,195SEC filing ↗
2026-06-11O'BRIEN THOMAS MAward / grant (A)Common Stock7,500USD 0.00USD 0SEC filing ↗
2026-06-11Feiner GaryAward / grant (A)Common Stock7,500USD 0.00USD 0SEC filing ↗
2026-06-11Chow Heidy KingwanAward / grant (A)Common Stock7,500USD 0.00USD 0SEC filing ↗
2026-06-11Angelo Michael FAward / grant (A)Common Stock7,500USD 0.00USD 0SEC filing ↗
2025-12-03O'BRIEN THOMAS MOption exercise / conversion (M)Common Stock625USD 10.10USD 6,312SEC filing ↗
2025-11-26Feiner GarySale (S)Common Stock1,875USD 22.70USD 42,562SEC filing ↗
2025-11-24Angelo Michael FSale (S)Common Stock625USD 20.89USD 13,056SEC 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 · —
TickerVHC
CIK0001082324
SectorTechnology
IndustrySoftware—Infrastructure Yahoo Finance
SEC SIC6794 Patent Owners & Lessors
ExchangeNasdaq

Data coverage

Local Form 4 history92 transaction lines from 2020-05-21 to 2026-09-30
17 P purchase lines · 15 S sale lines · 60 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.