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

Tenable Holdings, Inc.

TENB · Nasdaq · CIK 0001660280 · Technology · Software—Infrastructure

INSIDER SIGNAL

30.1 / 100

1 buyers · 1 purchase transaction lines · $258.5K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleModerate
RecencyLow
ConvictionLow
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+7.0 / 35
Purchase size+5.4 / 25
Role+15.0 / 20
Recency+0.6 / 10
Conviction+2.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Purchase activity is becoming less recent
  • ⚠ Buying conviction is reduced by concurrent selling
  • ✓ Role scores high · most senior buyer: Chief Financial Officer

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Vintz Stephen ACo-Chief Executive Officer
○○○○○○○○
Zecher Linda KayDirector
○▼▼▼▼▼
Brown Matthew CharlesChief Financial Officer
●○○○○
Thurmond Mark C.Co-Chief Executive Officer
○○○○
Anschutz BarronOther
○○○○
KEANE MARGARET MDirector
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Brown Matthew Charles · $258.5K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-04–2026-05-04

Roles in the peak window: Chief Financial Officer. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

30.1 / 100

Latest recorded score

→ +0.0 ptsversus the previous recorded snapshot
  1. 30.3
  2. 30.2
  3. 30.1
  4. 30.1
  5. 30.1

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

3Purchases
7Sales
156Other Form 4 lines
38SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING6 sale line(s) · context only
OTHER77 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 provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
+29.8%
3M
+6.1%
6M
+159.3%
12M
+39.1%

Volatility & liquidity

Volatility
48.0%
Beta
—
Avg daily value
USD 171.7M

Valuation

Market cap
USD 4.6B
P/E
—

Fundamentals

Profit margin
-3.6%
ROE
-11.1%
Industry
Software—Infrastructure

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-07-31 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
15,633,932
Previous report
18,181,258
Avg daily volume
3,495,699
Days to cover
4.5

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
2026-05-04Brown Matthew CharlesPurchase (P)Common Stock12,000USD 21.54USD 258,480SEC filing ↗
2026-02-12Vicks Raymond Jr.Purchase (P)Common Stock4,500USD 22.17USD 99,765SEC filing ↗
2026-02-09COVIELLO ARTHUR W JRPurchase (P)Common Stock12,000USD 21.50USD 258,000SEC filing ↗

Form 4 evidence

166 transaction lines in the latest 365-day window; 1,162 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-24Vintz Stephen AOption exercise / conversion (M)Common Stock27,413USD 0.00USD 0SEC filing ↗
2026-08-24Vintz Stephen ATax withholding (F)Common Stock13,121USD 33.94USD 445,327SEC filing ↗
2026-08-24Thurmond Mark C.Option exercise / conversion (M)Common Stock25,369USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-24Vintz Stephen AOption exercise / conversion (M)Common Stock27,413USD 0.00USD 0SEC filing ↗
2026-08-24Vintz Stephen ATax withholding (F)Common Stock13,121USD 33.94USD 445,327SEC filing ↗
2026-08-24Thurmond Mark C.Option exercise / conversion (M)Common Stock25,369USD 0.00USD 0SEC filing ↗
2026-08-24Thurmond Mark C.Tax withholding (F)Common Stock12,268USD 33.94USD 416,376SEC filing ↗
2026-08-24Anschutz BarronOption exercise / conversion (M)Common Stock4,224USD 0.00USD 0SEC filing ↗
2026-08-24Anschutz BarronTax withholding (F)Common Stock2,022USD 33.94USD 68,627SEC filing ↗
2026-08-21Brown Matthew CharlesOption exercise / conversion (M)Common Stock14,544USD 0.00USD 0SEC filing ↗
2026-08-21Brown Matthew CharlesTax withholding (F)Common Stock7,400USD 34.38USD 254,412SEC filing ↗
2026-08-19Zecher Linda KaySale (S)Common Stock690USD 35.76USD 24,674SEC filing ↗
2026-08-18Zecher Linda KaySale (S)Common Stock700USD 35.46USD 24,822SEC filing ↗
2026-08-07Zecher Linda KaySale (S)Common Stock550USD 36.50USD 20,075SEC filing ↗
2026-08-07Vicks Raymond Jr.Sale (S)Common Stock1,819USD 35.94USD 65,375SEC filing ↗
2026-08-05Vintz Stephen AOption exercise / conversion (M)Common Stock423,434USD 16.21USD 6,863,865SEC filing ↗
2026-08-05Vintz Stephen ATax withholding (F)Common Stock300,736USD 36.48USD 10,970,849SEC filing ↗
2026-08-04Zecher Linda KaySale (S)Common Stock600USD 36.00USD 21,600SEC filing ↗
2026-08-03Zecher Linda KaySale (S)Common Stock1,470USD 34.00USD 49,980SEC filing ↗
2026-06-15KEANE MARGARET MOption exercise / conversion (M)Common Stock3,188USD 0.00USD 0SEC filing ↗
2026-05-22Vintz Stephen AOption exercise / conversion (M)Common Stock27,413USD 0.00USD 0SEC filing ↗
2026-05-22Vintz Stephen ATax withholding (F)Common Stock13,121USD 25.45USD 333,929SEC filing ↗
2026-05-22Thurmond Mark C.Option exercise / conversion (M)Common Stock25,369USD 0.00USD 0SEC filing ↗
2026-05-22Thurmond Mark C.Tax withholding (F)Common Stock12,268USD 25.45USD 312,221SEC filing ↗
2026-05-22Anschutz BarronOption exercise / conversion (M)Common Stock4,223USD 0.00USD 0SEC filing ↗
2026-05-22Anschutz BarronTax withholding (F)Common Stock2,021USD 25.45USD 51,434SEC filing ↗
2026-05-21Brown Matthew CharlesOption exercise / conversion (M)Common Stock14,544USD 0.00USD 0SEC filing ↗
2026-05-21Brown Matthew CharlesTax withholding (F)Common Stock5,219USD 25.17USD 131,362SEC filing ↗
2026-05-13Zecher Linda KayOption exercise / conversion (M)Common Stock6,062USD 0.00USD 0SEC filing ↗
2026-05-13Vicks Raymond Jr.Option exercise / conversion (M)Common Stock6,062USD 0.00USD 0SEC filing ↗
2026-05-13Tosheff George AlexOption exercise / conversion (M)Common Stock6,062USD 0.00USD 0SEC filing ↗
2026-05-13SEAWELL A BROOKEOption exercise / conversion (M)Common Stock6,062USD 0.00USD 0SEC filing ↗
2026-05-13KEANE MARGARET MOption exercise / conversion (M)Common Stock6,062USD 0.00USD 0SEC 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 · —
TickerTENB
CIK0001660280
SectorTechnology
IndustrySoftware—Infrastructure Yahoo Finance
SEC SIC7372 Services-Prepackaged Software
ExchangeNasdaq

Data coverage

Local Form 4 history1,162 transaction lines from 2020-02-03 to 2026-08-24
3 P purchase lines · 580 S sale lines · 579 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.