TENB Tenable Holdings, Inc.

XNAS 51.70 −0.15% Pre-market
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Stock quote, options chain, IV rank, technicals, AI analysis, and institutional ownership. Iron condor setups Expected move IV rank history Fibonacci levels Insider trading

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.

TENB $51.70 ▼ -0.15%
Key stats
$51.78
Pre-market $51.70 -0.15%
52-Week Range
$15.72 – $52.55
YTD
+127.80%
IV Rank (30D)
15.73
Straddle Price
$6.00
P/C Vol Ratio
0.36
Market Cap
$5.4B
Open
$45.73
Day Range
$45.42 – $52.55
Volume
7,170,314
Prev Close
$48.72
Fair Value
MODEL: NEUTRAL

A blended fair-value estimate combining up to six valuation methods. Each method is weighted by how well it fits the company — DCF down-weights for unprofitable names; DDM only fires for steady dividend payers; comparables down-weight when peer multiples disagree.

  • DCF (quality-aware) — projects free cash flow with a horizon that scales to business quality. True compounders (quality 6/6) get 10 years explicit + 10 years fade before terminal; cyclical/struggling names (quality 0-1) get a 5-year terminal cliff. Quality is scored from ROE, gross margin, growth, FCF margin, debt load, and FCF consistency — the same factors that drive market premium for compounders.
  • Market-Implied Growth (in Model Inputs) — reverse-DCF that answers "what growth rate is the market pricing in?". Lets you sanity-check the deviation: if implied growth is plausible for the business, the model's bearish flag may be wrong; if implausible, the market may be over-extrapolating.
  • DDM (Gordon Growth Dividend Model) — values the stream of future dividends. Only used when trailing yield ≥ 2% and dividend payments are stable — below that the dividend is a token payout and Gordon (which values only the dividend stream) systematically underprices growth names, so those route to DCF + comparables + market anchor instead.
  • P/E, EV/EBITDA, P/B, P/S — applies the peer-group median multiple to this company's per-share metric. Peers come from the same set as the "Related symbols" card. Earnings/sales metrics are forward-tilted by the company's recent revenue growth (capped at 25%) so they're comparable to peers' growth-embedded multiples — mimics how analysts use NTM rather than TTM. Per-multiple weights are biased by company quality (e.g. P/B down-weighted for asset-light tech).
  • Market Anchor (SMA50) — the 50-day moving average, weighted by recent trading-range stability (tighter Bollinger bands → higher weight). Captures information fundamentals miss (forward consensus, sentiment, supply/demand) — but only when recent trading is steady enough that the market has converged on a view. During wild breakouts or breakdowns the anchor's weight collapses.
  • Options Expected (B-L 30d) — the risk-neutral expected stock price at 30-day options expiration, derived from the full implied-volatility surface via Breeden-Litzenberger (second derivative of call price wrt strike → implied PDF, then E[S_T]). Forward-looking, captures all options-implied information (smile, skew, term structure) in one number. Weighted by chain liquidity. SP500-only at present (pre-computed daily). Backtest evidence: adds modest alpha across most bucket × holding combos.
  • Blended value — weighted average. Confidence reflects how many methods fired and how tight peer dispersion is.
  • Deviation pill — green when blended FV ≥ 10% above current price (undervalued); red when ≥ 10% below; grey otherwise.
10-yr Treasury (rf)4.99%
Beta vs SPY1.13
Cost of Equity (CAPM)11.23% (VRP-adj)
WACC10.75%
Volatility Risk Premium+39.4pp (IV − HV30), ERP adj +50bps
Effective Tax Rate21.0%
Rev. Growth (YoY, DCF input)+6.4%
DCF Horizon10 years explicit + fade
Forward Tilt (NTM/TTM)×1.06 (applied to P/E, EV/EBITDA, P/S)
Free Cash Flow (TTM)$0.3B
Return on Equity (TTM)3.4%
Book / Price3.2%
Gross Margin (TTM)78.1%
FCF Margin (TTM)25.3%
Debt / Equity1.78
Quality Score3/6 — normal (10y DCF)
Market-Implied Growth+14.3% (reverse-DCF on current price)
SMA 50$37.69 (Market Anchor value)
SMA 20 / Bollinger Mid$41.68
Bollinger Width / SMA2097.6% (drives anchor stability)
Net Debt$0.2B
Market Cap$6B
Peers used for multiples: CRWD, FTNT, OKTA, PANW, QLYS, RBRK, S, ZS
60-Day Conviction
30%
20-Day Fair Value
≈ by Nov 30, 2026
$51.84
α +0.1% rank 46%
conviction
7%
40-Day Fair Value
≈ by Dec 29, 2026
$52.44
α +1.3% rank 44%
conviction
42%
60-Day Fair Value
≈ by Jan 27, 2027
$52.22
α +0.9% rank 42%
conviction
30%
MethodImplied PriceWeightDetail
DCF $32.58 22%
DDM (Gordon) n/a 0%
Peer P/E $6.99 5% median 131.5× · 5 peers
Peer EV/EBITDA $123.06 7% median 163.4× · 6 peers
Peer P/B $23.04 9% median 13.8× · 7 peers
Peer P/S $138.95 9% median 14.8× · 8 peers
Market Anchor (SMA50) $37.69 27% stability 62% (BB-width)
Options Expected (B-L 30d) $53.49 22% 28 strikes · skew +0.34
As of 2026-10-30 · updated
About
Industry (SIC)
SERVICES-PREPACKAGED SOFTWARE (7372) · industry map
Exchange
XNAS
Market Cap
$5.4B
Employees
1,995
List Date
2018-07-26
CIK
0001660280
Headquarters
Columbia, MD
Homepage
https://www.tenable.com

Founded in 2002, Tenable is a cybersecurity company that began providing vulnerability management solutions under its Nessus software. In recent years, Tenable has expanded its portfolio to provide a broader range of exposure management modules. Solutions include cloud security and compliance, active directory management, operational technology security and advanced vulnerability analytics. The Maryland-based company went public in 2018.

Summary
—
composite
—
No summary data available for this symbol yet.

Each spoke is this symbol's rank within its sector (0–100; the dotted ring marks the sector median at 50). Higher is more constructive for a long. One spoke — News sentiment — is an absolute reading, not a sector rank. Grayed spokes have no data. A fuller shape is a summary, not a recommendation.

Chart
Seasonality
'21'22'23'24'25'26Avg
Jan-5.26%-4.27%6.15%7.12%10.57%-2.95%1.89%
Feb-19.42%6.63%-0.09%1.24%-11.88%-12.67%-6.03%
Mar-12.66%2.85%7.63%2.77%-7.09%-13.87%-3.39%
Apr0.09%-6.01%-19.41%-8.86%-13.08%22.52%-4.12%
May10.67%-10.74%12.80%-6.31%4.81%32.97%7.37%
Jun0.29%-10.01%6.53%6.09%4.91%25.78%5.60%
Jul5.16%-16.27%13.90%7.06%-6.76%-15.54%-2.07%
Aug-1.40%3.69%-7.78%-2.82%1.14%9.09%0.32%
Sep2.19%-6.43%-1.10%1.12%-4.36%2.59%-1.00%
Oct14.20%13.84%-7.80%-2.96%0.52%43.40%*10.20%
Nov-7.70%-4.29%-1.38%8.25%-8.61%---2.75%
Dec17.97%-3.86%12.98%-6.37%-10.43%--2.06%
Total-2.41%-32.55%17.97%4.47%-35.79%102.76%9.08%
Technical Indicators

Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.

Trend Indicators
  • SMA 20 / 50 / 200 — price above = uptrend, below = downtrend. SMA 50 crossing SMA 200 is the golden/death cross.
  • EMA 12 / 26 — faster-reacting averages; 12 above 26 is short-term bullish.
  • MACD — bullish when MACD > signal (green badge), bearish when below. Divergence from price often precedes reversals.
  • ADX (14) — trend strength regardless of direction. <20 range, 20–25 weak trend, 25–50 trend, >50 strong trend.
  • +DI / −DI — +DI > −DI favors bulls; the reverse favors bears. Read alongside ADX.
Momentum Oscillators
  • RSI (14) — <30 oversold, >70 overbought. 40–60 is neutral; trending names can stay extreme.
  • Stochastic %K / %D — <20 oversold, >80 overbought. %K crossing %D is an early momentum signal.
  • Williams %R — inverted scale: <−80 oversold, >−20 overbought.

Oscillators work best in range-bound markets; in strong trends they give premature reversal signals.

Volume & Volatility
  • Bollinger Bands — price at upper band = overbought, lower = oversold. Narrow bands (squeeze) often precede expansion.
  • OBV — cumulative volume; rising OBV confirms uptrend, falling OBV confirms downtrend. Divergence from price is a warning.
  • Vol SMA 20 / Vol ROC — today's volume vs. 20-day average. Positive ROC with price move = conviction.
  • ATR / True Range — average daily $ move; sizing and stop-loss reference.
  • HV 20 / 30 / 60 — realized (historical) volatility. Compare to IV on the options cards: IV > HV = rich premium.

Confluence matters: trend + momentum + volume agreeing carries far more weight than any single indicator. For how these feed the spread scanner score, see the algorithm docs →

Trend Indicators

SMA 20: $41.68
SMA 50: $37.69
SMA 200: $28.62
Current: $51.78
EMA 12: $44.79
EMA 26: $41.56
MACD: 3.2280 | Signal: 1.1425
BULLISH
ADX (14): 21.85
WEAK TREND
+DI: 32.21
−DI: 16.70

Momentum Oscillators

RSI (14): 77.34
OVERBOUGHT
Stoch %K: 93.42
Stoch %D: 95.45
Williams %R: -4.76

Volume & Volatility

BB Upper: $50.16
BB Lower: $33.20
OVERBOUGHT
OBV: 93,693,120
Vol SMA 20: 4,091,462
Vol ROC: 47.01%
ATR: $2.68
True Range: $7.12
HV 20: 63.2%
HV 30: 59.4%
HV 60: 72.3%

Data Summary

Data Points: 500
Last Updated:
Date Range: 2024-10-31T00:00:00 – 2026-10-29T00:00:00
AI Analysis

LLM Stock Analysis Report

Executive Summary Overall Assessment: BULLISH (Confidence Level: 7/10)

Key Drivers:

  • Recent news headlines highlighting positive partnerships and market trends
  • Technical indicators pointing to a possible uptrend

Primary Risks:

  • Volatility risk due to the stock's beta above 1.0
  • Potential pullback if momentum slows down or negative news emerges

Investment Thesis: Tenable Holdings (TENB) is likely to continue its upward trajectory, driven by positive market trends and recent partnerships.

Recent News Sentiment Impact: The recent news headlines have been overwhelmingly positive, which has contributed to the stock's upward movement. This sentiment aligns with the technical indicators' bullish signals.

Technical Analysis Trend Direction:

  • Short-term (1-4 weeks): Uptrend
  • Medium-term (1-3 months): Bullish momentum
  • Long-term (3-12 months): Neutral

Support/Resistance Levels:

  • Key resistance: $42.19 (Bollinger Bands' upper band)
  • Support: $35.46 (SMA 20)

Momentum Signals:

  • RSI interpretation: Neutral (57.59) - indicates no strong buying or selling pressure
  • MACD signal: Bullish (0.40 / Signal: -0.01 / Histogram: 0.41) - suggests a potential uptrend
  • Bollinger Bands position: Neutral (price touching middle band)

Volume Analysis:

  • Volume SMA 20: 3610452.85 - indicates above-average trading volume
  • On-Balance Volume (OBV): 27458119.49 - shows increasing buying pressure
  • Volume Rate of Change: 72.04% - suggests a potentially strong trend

News & Sentiment Analysis Recent Headlines Summary: The recent news headlines highlight Tenable's positive partnerships and market trends, which have contributed to the stock's upward movement.

Sentiment Assessment: Positive (aggregate sentiment from last 10 news articles)

Catalyst Identification: Upcoming earnings reports and product launches may continue to drive the stock's momentum.

Market Narrative: The news sentiment aligns with the technical indicators' bullish signals, indicating a potential uptrend.

Risk & Volatility Assessment Risk Interpretation:

  • Beta: 1.10 (above average) - suggests the stock is more volatile than the market
  • Stock Volatility: 0.52 - above-average volatility

Volatility Regime:

  • Current vs historical volatility levels: Higher than usual

Options Market Signals:

  • IV Rank: 60.6% (Medium) - indicates historically medium-high volatility
  • Put/Call Volume Ratio: 8.26 (Bearish sentiment) - suggests caution in the options market

Downside Protection:

  • Support levels: $35.46 (SMA 20), $28.74 (Bollinger Bands' lower band)
  • Risk management considerations: Stop-loss at $34.50 and position sizing to manage risk

Market Context & Positioning Sector Performance: Tenable's sector, cybersecurity, has been performing well recently.

Institutional Activity: Above-average institutional interest has contributed to the stock's upward movement.

Correlation Analysis: The stock moves relatively strongly with the market (R-squared interpretation: 0.27)

Relative Valuation: Tenable is positioned within a trading range, indicating potential support and resistance levels.

Key Levels & Action Items Critical Price Levels:

  • Resistance: $42.19 (Bollinger Bands' upper band)
  • Support: $35.46 (SMA 20), $28.74 (Bollinger Bands' lower band)

Breakout/Breakdown Levels:

  • Breakout above $42.19 to confirm the uptrend
  • Breakdown below $28.74 to indicate a potential downtrend

Time-Sensitive Catalysts:

  • Earnings reports: Potential for increased volatility and stock price movement
  • Product launches: May continue to drive the stock's momentum

Risk Management: Stop-loss at $34.50 and position sizing to manage risk.

By analyzing the technical indicators, recent news headlines, and market context, it appears that Tenable Holdings (TENB) is likely to continue its upward trajectory. However, the high volatility and potential risks should be considered when making investment decisions.

Generated
News
All TENB news →
Earnings History
20 of 24 under expected move
Avg Expected Move
13.04%
Avg Actual Move
6.45%
Each row pairs the pre-earnings straddle-implied expected move with the realized close-to-close move. Sorted oldest first.
Earnings Date Timing Expected Move Actual Move Ratio Outcome
2021-02-02 After-Close 13.56% 11.56% 0.85x Within
2021-04-27 After-Close 12.59% 5.01% 0.40x Within
2021-07-27 After-Close 11.77% 0.99% 0.08x Within
2021-10-26 After-Close 10.57% 1.12% 0.11x Within
2022-02-01 After-Close 12.71% 2.81% 0.22x Within
2022-04-26 After-Close 14.01% 2.14% 0.15x Within
2022-07-26 After-Close 13.38% 15.59% 1.17x Exceeded
2022-10-25 After-Close 13.58% 14.99% 1.10x Exceeded
2023-02-07 After-Close 11.17% 5.11% 0.46x Within
2023-04-24 After-Close 11.26% 19.14% 1.70x Exceeded
2023-07-25 After-Close 14.80% 10.19% 0.69x Within
2023-11-01 After-Close 11.68% 15.82% 1.35x Exceeded
2024-02-06 After-Close 13.71% 5.29% 0.39x Within
2024-05-01 After-Close 12.17% 0.40% 0.03x Within
2024-07-31 After-Close 17.31% 7.49% 0.43x Within
2024-10-30 After-Close 11.10% 3.93% 0.35x Within
2025-02-05 After-Close 10.88% 7.78% 0.72x Within
2025-04-29 After-Close 9.43% 9.23% 0.98x Within
2025-07-30 After-Close 11.63% 2.88% 0.25x Within
2025-10-29 After-Close 12.48% 0.72% 0.06x Within
2026-02-04 After-Close 12.68% 0.20% 0.02x Within
2026-04-29 After-Close 16.19% 2.70% 0.17x Within
2026-07-29 After-Close 17.07% 3.40% 0.20x Within
2026-10-28 After-Close 17.24% 6.28% 0.36x Within

Earnings calendar: this week’s reports with expected vs actual moves →

TENB Options Activity & IV Rank

TENB IV rank history, 52-week IV rank and IV percentile →

Volatility Metrics

Current IV: 58.5%
7-DTE IV: —
Expected Move: $6.00
7-DTE Move: $6.00
Days to Exp: 22 (2026-11-20)

Options Flow

Call Volume: 619
Put Volume: 224
P/C Volume: 0.362
BULLISH
Call OI: 17,871
Put OI: 668
P/C OI: 0.037
Total OI: 18,539

ATM Options Pricing

ATM Call: $4.00
ATM Put: $2.00
Call %: 7.7%
Put %: 3.9%

Chain Summary

Chain Volume: 4,144
Chain OI: 32,611
Last Updated: 10/29/2026
Spread Scanner GPU
Full Algorithm Docs ↗

Each spread is ranked by a composite score built in three stages. Full documentation →

Stage 1 — Base Score (GPU scanner)

score = P(profit) × (credit / spread_width)
P(profit) from short leg delta (1 − |delta|), penalised above 85%. Credit uses mid-price to handle illiquid chains fairly.

Stage 2 — Skew Adjustment (±25% cap)

RR and BF (30-delta) from the persisted per-symbol skew snapshot — wing strikes picked by real greeks.delta, not a moneyness proxy. Put skew boosts bull puts, penalises bear calls. High butterfly boosts iron condors. Calendars are skew-neutral.

Stage 3 — Technical Overlay (±50% cap, 5 groups)
Group 1 · Directional Bias (±0.25)
  • RSI <40 bullish / >60 bearish
  • MACD crossover + histogram trend
  • Price vs SMA 50 & SMA 200
Group 2 · Momentum (±0.10)
  • Stochastic %K <20 / >80
  • Williams %R <−80 / >−20
Group 3 · Volatility (up to −0.25 / +0.15)
  • Blended ATR + straddle expected-move penalty
  • Bollinger Band signal (+ counter-trend penalty)
  • BB width — vol contraction boost for ICs
Group 4 · IV Regime (±0.15)
  • IV rank ≥ 75 → strong boost for credit spreads
  • IV rank < 25 → penalty (selling cheap vol)
Group 5 · Liquidity (penalty up to −0.10)
  • Min open interest across all legs
  • OI < 100 → −0.10 · OI < 500 → −0.05

score = base_score × skew_multiplier × tech_multiplier
Both multipliers are shown per spread. Beta is informational only — ATR already captures realized vol. Full algorithm documentation →

Enter a ticker to scan for optimal spread opportunities.

Evaluates all bull put, bear call, iron condor, and calendar spread combinations using GPU-accelerated analysis.

Dealer Positioning
HIGH γ vs HISTORY

Estimated net dealer gamma is at the 99th percentile of this name's own daily history, near the high end of its range. This describes current positioning; it is not a forecast or a trading signal.

Gamma percentile
99%
vs own history
GEX tilt
+0.99
OI-weighted, today
Vanna tilt
+0.68
δ-sensitivity to IV
Charm tilt
-0.82
δ-decay vs time
Vanna tilt +0.68: the estimated dealer exposure leans positive, so the modeled hedge would shift noticeably if implied volatility changed.
Charm tilt -0.82: the estimated dealer exposure leans negative, so the modeled hedge would shift noticeably as time passes and options approach expiry.

Net dealer gamma is an estimate of the aggregate gamma held by options market makers across this name's option chain, weighted by open interest. Dealer positions aren't public, so it uses a standard simplifying assumption: dealers are treated as long the calls and short the puts that are open. Actual dealer books can differ.

Gamma percentile ranks today's estimate against this name's own daily history, from 0% (the lowest reading on record) to 100% (the highest). Raw gamma scales with how much open interest a chain carries, so it isn't comparable across names; the percentile is. The badge marks the bottom 20% as low and the top 20% as high.

Tilts run from −1 to +1 and show how lopsided the estimated dealer exposure is. GEX tilt compares call gamma with put gamma. Vanna tilt describes how the hedge would shift if implied volatility changed, and charm tilt how it would shift with the passage of time.

This card describes estimated positioning and where it sits historically. It is not a forecast of price direction or volatility and not a trading signal. Market-wide view: Dealer positioning screener.

· 18 ATM contracts, 18k total OI
Skew (Wing IV − ATM IV)
DTE:
Wing Δ:
Metric:
Wing vs ATM
IV(put wing) − IV(ATM), in vol points

How much the OTM put trades above (or below) the at-the-money strike. Measures the height of the put-side tail relative to ATM — i.e. how expensive crash insurance is on this name.

  • Positive (typical) — wing IV > ATM IV. Standard equity put skew: portfolios bid up crash protection, so OTM puts trade richer than ATM.
  • Near zero or negative (unusual) — wing IV ≤ ATM IV. Flat or inverted put side. Common when there's no fear demand, in tightly mean-reverting names, or right after an earnings catalyst clears.
  • Percentile vs own 3-yr history: high = wings rich (good time to sell wing premium); low = wings cheap (good time to buy protection).
  • Not directional — high or low wings don't predict up or down moves. It's a price tag on tail insurance, not a forecast.
Risk Reversal
IV(call wing) − IV(put wing), equal delta on each side

Which side of the smile is the market paying up for? Measures the tilt of the surface — call skew vs put skew at matched deltas.

  • Negative (typical) — puts richer than calls. Standard equity behavior: hedging demand makes puts carry a premium. Most large-caps sit in the −1 to −5 vol-point range.
  • Strongly negative (< −5 pts) — heavy downside hedging, elevated fear, or an upcoming catalyst (earnings, FDA, macro event). Worth flagging.
  • Positive — calls richer than puts. Unusual for equities; signals bullish momentum, short-squeeze positioning, or takeover/M&A speculation.
  • Near zero — symmetric surface. Market sees roughly equal up/down risk. Rare for large-caps; more common in commodities and FX.
Reading them together

Wing-vs-ATM tells you how expensive the tails are. Risk Reversal tells you which side is favored. Combined:

  • High wing percentile + deeply negative RR → strong put bid; stress or major event priced in. Owning protection costs a premium; selling put premium is dangerous.
  • Low wing percentile + near-zero RR → complacency; insurance cheap and balanced. Good environment to add cheap downside hedges.
  • Positive RR + elevated wings → call-side fear-of-missing-out; common in squeeze setups. Upside calls expensive, downside puts not bid.
14 DTE / 10d —
— pts EXTREME
as of Oct 29 · No data
30 DTE / 10d —
— pts EXTREME
as of Oct 29 · No data

Percentile is the rank of today's reading within ~3 years of this symbol's own history. High percentile = wings are rich relative to history; not a directional signal. Skew is read off the chain in real time, not from CBOE SKEW.

Volatility Surface

Enter a ticker to render the implied volatility surface.

Volatility Smile

Enter a ticker to render the implied volatility smile.

IV Rank (7 DTE)
IV Rank (30 DTE)15.7LowOct 29
Straddle Price (30 DTE)$6.00Oct 29
Beta Analysis

Risk Metrics

Beta: 1.1681
Alpha: 63.79%
Correlation: 0.2430
R-Squared: 5.9%
Stock Volatility: 61.1%
Market Volatility: 12.7%

Analysis Details

Benchmark: SPY
Data Points: 251
Period: 252 trading days
Interpretation:
Above average volatility - stock moves with market amplification
Beta & Alpha Over Time
Notable investors who own TENB
5 of 37 tracked investors
InvestorValueShare of their portfolioRankQ/Q sharesSource
Millennium Management Hedge fund
Izzy Englander
$35.9M
0.02%
#786 of 3716+69.7%13F
Renaissance Technologies Hedge fund
Jim Simons
$35.8M
0.05%
#453 of 3138-23.0%13F
Point72 Hedge fund
Steve Cohen
$20.9M
0.03%
#575 of 1945+422.4%13F
Citadel Hedge fund
Ken Griffin
$17.0M
0.01%
#1244 of 6285-38.7%13F
Rockefeller Capital Management Family office
Rockefeller family
$64K
0.00%
#3233 of 4729+24.6%13F

Hedge funds, activists, holding companies and family offices we track, from their latest 13F (quarter-end value) and Form 4 filings in the last 3 years. Family offices · all institutions

TENB Institutional Ownership (13F)

Latest filings — 2026-09-30
Diluted shares outstanding: 118,384,000 (as of 2026-06-30)

Institutional managers with $100M+ AUM file Form 13F-HR quarterly, due 45 days after quarter end. Holdings are reported gross at quarter-end market value — they are a snapshot, not a real-time position.

  • Shares — long equity positions in this name, aggregated across share classes.
  • Calls / Puts — notional value of long call / put exposure where this ticker is the underlying.
  • % of Float — holder's reported shares divided by the latest diluted shares outstanding. Sums above 100% indicate large custodian / prime broker positions where the same shares are reported by multiple filers.
  • Custodian badge — filers with more than 5,000 holdings are typically broker-dealers / custodians reporting customer-held shares, not active managers.

Each filer is counted once at its latest 13F-HR filing. New filings are ingested on a weekly cadence.

339 filers132,214,269 shares$4.66B value111.68% of float
# Filer Shares Value % of Total % of Float Period
1 Ameriprise Financial, Inc. Custodian 15,226,424 $561.65M 12.06% 12.86% 2026-06-30
2 BlackRock, Inc. Custodian 13,513,760 $498.39M 10.70% 11.42% 2026-06-30
3 Vanguard Portfolio Management LLC 10,236,092 $377.51M 8.11% 8.65% 2026-06-30
4 Vanguard Group Inc Custodian 15,427,510 $363.01M 7.79% 13.03% 2025-12-31
5 Vanguard Capital Management LLC 4,996,097 $184.26M 3.96% 4.22% 2026-06-30
6 Arrowstreet Capital, Limited Partnership 4,406,990 $162.53M 3.49% 3.72% 2026-06-30
7 FMR LLC Custodian 4,138,168 $152.62M 3.28% 3.50% 2026-06-30
8 State Street Corp 3,236,610 $119.37M 2.56% 2.73% 2026-06-30
9 First Trust Advisors LP 2,973,863 $109.68M 2.35% 2.51% 2026-06-30
10 Geode Capital Management, LLC Custodian 2,961,886 $109.25M 2.35% 2.50% 2026-06-30
11 Penserra Capital Management LLC 2,952,670 $108.89M 2.34% 2.49% 2026-06-30
12 SHAPIRO CAPITAL MANAGEMENT LLC 2,883,052 $106.33M 2.28% 2.44% 2026-06-30
13 Goldman Sachs Group Inc Custodian 2,447,318 $90.26M 1.94% 2.07% 2026-06-30
14 Morgan Stanley Custodian 2,250,650 $83.00M 1.78% 1.90% 2026-06-30
15 The Manufacturers Life Insurance Company 2,081,312 $76.76M 1.65% 1.76% 2026-06-30
16 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 2,018,248 $74.32M 1.60% 1.70% 2026-06-30
17 AQR Capital Management, LLC Custodian 1,796,634 $66.26M 1.42% 1.52% 2026-06-30
18 Jane Street Group, LLC Custodian 1,780,120 $65.65M 1.41% 1.50% 2026-06-30
19 VOYA INVESTMENT MANAGEMENT LLC 1,606,839 $59.26M 1.27% 1.36% 2026-06-30
20 Barclays PLC Custodian 1,335,118 $49.24M 1.06% 1.13% 2026-06-30
21 Freestone Grove Partners LP 1,152,100 $42.49M 0.91% 0.97% 2026-06-30
22 Northern Trust Corp Custodian 1,100,979 $40.60M 0.87% 0.93% 2026-06-30
23 LSV ASSET MANAGEMENT 1,086,700 $40.08M 0.86% 0.92% 2026-06-30
24 Dimensional Fund Advisors LP Custodian 1,081,767 $39.90M 0.86% 0.91% 2026-06-30
25 Charles Schwab Investment Management, Inc. 1,057,622 $39.01M 0.84% 0.89% 2026-06-30
13 filers$33.27M notional
# Filer Notional Value % of Total Period
1 PEAK6 LLC $11.07M 33.28% 2026-06-30
2 Citadel Advisors LLC Custodian $6.87M 20.64% 2026-06-30
3 Susquehanna International Group, LLP Custodian $3.79M 11.41% 2026-06-30
4 IMC-Chicago, LLC Custodian $3.51M 10.55% 2026-06-30
5 Jane Street Group, LLC Custodian $2.13M 6.40% 2026-06-30
6 Caption Management, LLC $1.84M 5.54% 2026-06-30
7 DRW Securities, LLC $1.59M 4.78% 2026-06-30
8 GROUP ONE TRADING LLC Custodian $1.15M 3.47% 2026-06-30
9 Simplex Trading, LLC Custodian $593.77K 1.78% 2026-06-30
10 Walleye Trading LLC $324.54K 0.98% 2026-06-30
11 Wolverine Trading, LLC Custodian $244.77K 0.74% 2025-09-30
12 Tidal Investments LLC $143.83K 0.43% 2026-06-30
13 CAPTRUST FINANCIAL ADVISORS $3.69K 0.01% 2026-06-30
5 filers$5.31M notional
# Filer Notional Value % of Total Period
1 Jane Street Group, LLC Custodian $1.78M 33.52% 2026-06-30
2 PEAK6 LLC $1.60M 30.12% 2026-06-30
3 Citadel Advisors LLC Custodian $1.49M 28.11% 2026-06-30
4 Walleye Trading LLC $236.03K 4.44% 2026-06-30
5 Susquehanna International Group, LLP Custodian $202.84K 3.82% 2026-06-30

TENB Insider Trading (Form 4)

Latest: 2026-10-06
Form 4 filings — insider beneficial-ownership changes by officers, directors, and 10%+ holders. Filed within 2 business days of transaction.
Filed Reporter Role Action Shares Avg Price Net $ Link
2026-10-06 Charles H Bell Director Grant (A) +10,386 RSU — EDGAR
2026-08-25 Matthew Charles Brown Chief Financial Officer Mixed +7,144 $34.38 -$254.4K EDGAR
2026-08-25 Stephen A Vintz Co-Chief Executive Officer Mixed +14,292 $33.94 -$445.3K EDGAR
2026-08-25 Barron Anschutz Mixed +2,202 $33.94 -$68.6K EDGAR
2026-08-25 Mark C. Thurmond Co-Chief Executive Officer Mixed +13,101 $33.94 -$416.4K EDGAR
2026-08-20 Linda Kay Zecher Director Sell (S) −1,390 $35.61 -$49.5K EDGAR
2026-08-11 Linda Kay Zecher Director Sell (S) −2,620 $34.98 -$91.7K EDGAR
2026-08-11 Raymond Vicks Jr. Director Sell (S) −1,819 $35.94 -$65.4K EDGAR
2026-08-07 Stephen A Vintz Co-Chief Executive Officer Mixed +122,698 $24.63 -$4.11M EDGAR
2026-08-07 Stephen A Vintz Co-Chief Executive Officer Mixed +122,698 $24.63 -$4.11M EDGAR
2026-06-17 Margaret M Keane Director Exer (M) +3,188 — EDGAR
2026-05-26 Matthew Charles Brown Chief Financial Officer Mixed +9,325 $25.17 -$131.4K EDGAR
2026-05-26 Mark C. Thurmond Co-Chief Executive Officer Mixed +13,101 $25.45 -$312.2K EDGAR
2026-05-26 Stephen A Vintz Co-Chief Executive Officer Mixed +14,292 $25.45 -$333.9K EDGAR
2026-05-26 Barron Anschutz Mixed +2,202 $25.45 -$51.4K EDGAR
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (described in filing footnote — typically 401(k), trust, inheritance) · W = will/inheritance. Only P / S codes carry directional signal.

TENB Insider Holdings

13 insiders · @ $51.78
Officers, directors, and 10%+ owners who have filed a Form 4 in the past two years, ranked by current disclosed exposure (shares × today's price). Shares are direct + indirect (via trusts / LLCs / spouse). Excludes unvested RSU and option grants — those aren't beneficially owned until vest.
# Insider Role Shares Disclosed Exposure Lifetime OM Net Filings Last Filed
1 Stephen A Vintz Co-Chief Executive Officer 626,176 $32.42M -$49.92M 70 2026-08-25
2 Amit Yoran President, CEO and Chairman 292,638 $15.15M -$98.11M 99 2024-11-26
3 Mark C. Thurmond Co-Chief Executive Officer 197,401 $10.22M -$9.12M 50 2026-08-25
4 Barron Anschutz 75,212 $3.89M -$345.3K 16 2026-08-25
5 Arthur W Coviello Jr Director 57,793 $2.99M -$9.47M 22 2026-05-15
6 Matthew Charles Brown Chief Financial Officer 54,410 $2.82M $258.5K 7 2026-08-25
7 John C Huffard Jr Director 37,909 $1.96M -$10.79M 26 2026-05-15
8 George Alex Tosheff Director 31,344 $1.62M -$254.9K 9 2026-05-15
9 A Brooke Seawell Director 30,292 $1.57M -$3.50M 17 2026-05-15
10 Niloofar Razi Howe Director 29,839 $1.55M $0 7 2026-05-15
Lifetime OM Net = signed sum of open-market buys (P) and sells (S) over their career; excludes grants, tax withholdings, and dispositions to issuer. A large negative number is normal for long-tenured executives — they've sold compensation grants over many years.

TENB Board & Officers

As of SEC filings through Oct 6, 2026

Directors 11

Officers 3

Changes in the last 10 years (80)
Oct 5, 2026Charles H Bell became a director
Aug 21, 2025Matthew Charles Brown became Chief Financial Officer
May 27, 2025Stephen A Vintz listed as Co-Chief Executive Officer (previously Co-CEO,Chief Financial Officer) in SEC filings
May 27, 2025Stephen A Vintz first listed as a director in an SEC filing
May 27, 2025Mark C. Thurmond listed as Co-Chief Executive Officer (previously Co-CEO,Chief Operating Officer) in SEC filings
May 27, 2025Mark C. Thurmond first listed as a director in an SEC filing
Feb 18, 2025Stephen A Vintz listed as Co-CEO,Chief Financial Officer (previously Chief Financial Officer) in SEC filings
Feb 18, 2025Mark C. Thurmond listed as Co-CEO,Chief Operating Officer (previously Chief Operating Officer) in SEC filings
Jan 4, 2025The company announced the departure of Amit Yoran from the board in an SEC filing
Jan 4, 2025The company announced the departure of Amit Yoran as President, CEO and Chairman in an SEC filing
Jun 13, 2023Margaret M Keane became a director
Nov 9, 2022Mark C. Thurmond became Chief Operating Officer
Sep 28, 2022George Alex Tosheff became a director
Sep 8, 2022The company announced the departure of Stephen A Riddick as General Counsel & Secretary in an SEC filing
Aug 22, 2022The company announced the departure of Jerry M Kennelly from the board in an SEC filing
Jan 7, 2022The company announced the departure of Richard Wells from the board in an SEC filing
Jan 7, 2022Raymond Vicks Jr. became a director
May 25, 2021Niloofar Razi Howe became a director
Feb 19, 2021Insight Venture Partners IX, L.P. reported in an SEC filing no longer being a 10% owner
Feb 19, 2021Insight Venture Partners IX (Co-Investors), L.P. reported in an SEC filing no longer being a 10% owner
Not reported recently (13)
Compiled from SEC filings by the company and its directors and officers. Dates are as stated in those filings. Where no filing says when someone left, we show the last filing that listed them.

TENB Proposed Insider Sales (Form 144)

Latest: 2026-08-18
Last 30d: 0 filings  ·  Last 90d: 2 filings · $118K notice value · 2 unique filers · 50% under 10b5-1 plans

What is Form 144? A notice of intent to sell restricted or control stock under Rule 144. Affiliates (officers, directors, 10%+ owners) and holders of restricted shares must file Form 144 when planning to sell more than 5,000 shares or $50,000 in any 3-month rolling window.

How it relates to Form 4: Form 144 is filed before the trade (up to 90 days in advance); Form 4 is filed within 2 business days after the trade executes. Not every Form 144 results in a sale — the filer may cancel or delay. Look for the corresponding Form 4 on the Insider Activity card to confirm a sale actually happened.

10b5-1 plans: Trades made under a pre-scheduled Rule 10b5-1 plan are not discretionary — they execute automatically on dates set months earlier, regardless of news. High 10b5-1 percentages mean less per-filing signal value, though cumulative selling volume still matters.

"Notice value": Aggregate market value the filer wrote into the Form 144 — i.e. the size of the planned sale, not necessarily the executed dollars. An amended notice (Form 144/A) replaces the original it amends, and cancelled notices are dropped, so neither is double-counted above. A filed value that is clearly inconsistent with the share count at the stock's price (a filer typo) shows as a dash and is left out of the totals.

Source & freshness: Sourced from public Form 144 filings. Refreshed daily; new filings typically appear here the morning after they are filed.

Top 90-day filers: Vicks Raymond Jr. (1, $65K) · Linda Zecher-Higgins (1, $52K)
Filed Filer Role Shares Notice Value Planned Sale Broker Plan Link
2026-08-18 Linda Zecher-Higgins Director 1,400 $52.4K 2026-08-18 J.P. Morgan Securities LLC — EDGAR
2026-08-07 Vicks Raymond Jr. Director 1,819 $65.4K 2026-08-07 Fidelity Brokerage Services LLC 10b5-1 EDGAR
2025-12-15 SEAWELL A BROOKE Director 115,000 $2.85M 2025-12-15 Fidelity Brokerage Services LLC — EDGAR
2025-10-17 Anschutz Barron Officer 976 $28.4K 2025-10-17 Fidelity Brokerage Services LLC — EDGAR
2025-09-09 SEAWELL A BROOKE Director 15,000 $462.0K 2025-09-09 Rockefeller Capital Management — EDGAR
2025-09-04 SEAWELL A BROOKE Director 4,622 $139.2K 2025-09-04 Fidelity Brokerage Services LLC — EDGAR
2025-08-26 Vintz Stephen A Officer 3,464 $103.4K 2025-08-26 Fidelity Brokerage Services LLC — EDGAR
2025-08-26 Anschutz Barron Officer 670 $20.0K 2025-08-26 Fidelity Brokerage Services LLC — EDGAR
2025-08-26 Thurmond Mark C. Officer 2,541 $75.8K 2025-08-26 Fidelity Brokerage Services LLC — EDGAR
2025-08-25 Thurmond Mark C. Officer 28,500 $862.2K 2025-08-25 Fidelity Brokerage Services LLC — EDGAR
Notice value is the aggregate market value the filer states they intend to sell — not a confirmed transaction. Compare to Insider Activity (Form 4) to see which planned sales actually executed. Market-wide feed: Planned sales (Form 144).
ETF Holders
118 ETFs hold TENB
25 shown · $1.71B total exposure · 0.35% AUM-weighted avg weight
# ETF Provider Weight $ Exposure ETF AUM As Of
1 IJR iShares Core S&P Small-Cap ETF iShares (BlackRock) 0.31% $321.6M $106.5B 2026-10-28
2 HACK Amplify Cybersecurity ETF Amplify 4.16% $153.6M $3.7B 2026-10-29
3 BUG Global X Cybersecurity ETF Global X 5.89% $138.2M — 2026-10-29
4 IWM iShares Russell 2000 ETF iShares (BlackRock) 0.18% $137.3M $77.1B 2026-10-28
5 CIBR First Trust Nasdaq Cybersecurity ETF First Trust 0.72% $135.4M $18.7B 2026-10-28
6 VTI Vanguard Morningstar Total Stock Market ETF Vanguard 0.01% $128.3M — 2026-09-30
7 VGT Vanguard Information Technology ETF Vanguard 0.06% $98.8M — 2026-09-30
8 VB Vanguard Morningstar Small-Cap ETF Vanguard 0.05% $90.3M — 2026-09-30
9 IHAK iShares Cybersecurity and Tech ETF iShares (BlackRock) 5.26% $70.8M $1.3B 2026-10-28
10 IWO iShares Russell 2000 Growth ETF iShares (BlackRock) 0.36% $50.7M $14.3B 2026-10-28
11 VBK Vanguard Morningstar Small-Cap Growth ETF Vanguard 0.11% $50.2M — 2026-09-30
12 SPSM State Street® SPDR® Portfolio S&P 600™ Small Cap ETF SPDR (State Street) 0.31% $49.0M $16.0B 2026-10-28
13 VXF Vanguard Extended Market ETF Vanguard 0.05% $45.1M — 2026-09-30
14 DFAS Dimensional US Small Cap ETF Dimensional 0.10% $33.3M — 2026-10-28
15 IGV iShares Expanded Tech-Software Sector ETF iShares (BlackRock) 0.18% $26.1M $14.2B 2026-10-28
16 IJT iShares S&P Small-Cap 600 Growth ETF iShares (BlackRock) 0.34% $25.2M $7.6B 2026-10-28
17 VTWO Vanguard Russell 2000 ETF Vanguard 0.13% $23.4M — 2026-09-30
18 IJS iShares S&P Small-Cap 600 Value ETF iShares (BlackRock) 0.28% $21.3M $7.8B 2026-10-28
19 FESM Fidelity Enhanced Small Cap Core ETF Fidelity 0.29% $19.7M $6.8B 2026-10-28
20 FTEC Fidelity MSCI Information Technology Index ETF Fidelity 0.08% $17.2M $21.9B 2026-10-28
21 SCHA Schwab U.S. Small-Cap ETF Nport 0.07% $16.0M — 2026-05-31
22 SLYG State Street® SPDR® S&P 600™ Small Cap Growth ETF SPDR (State Street) 0.34% $15.8M $4.7B 2026-10-28
23 DFMC Dimensional US Micro Cap ETF Dimensional 0.19% $14.3M — 2026-10-28
24 VIOO Vanguard S&P Small-Cap 600 ETF Vanguard 0.23% $14.2M — 2026-09-30
25 SLYV State Street® SPDR® S&P 600™ Small Cap Value ETF SPDR (State Street) 0.28% $13.6M $4.8B 2026-10-28
Fundamentals

Quarterly filings sourced from SEC 10-Q / 10-K reports. TTM tiles aggregate the most recent four quarters; bars show the last ~12 quarters oldest → newest.

Metrics
  • Revenue — top-line sales. Look for consistent YoY growth; seasonal businesses need same-quarter comparisons (Q4 '24 vs Q4 '23).
  • Net Income — bottom-line profit after all expenses. Can be volatile from one-time items; red bars = net loss.
  • Diluted EPS — net income per share assuming options/converts are exercised. Direct input to the P/E ratio.
  • Operating Cash Flow — cash generated from core operations, before capex and financing. Harder to manipulate than net income; growing OCF is a quality signal.
How to read the bars
  • Sequential growth — quarter-over-quarter trend. Accelerating bars are a momentum signal.
  • YoY growth — compare to the same quarter a year earlier to remove seasonality.
  • Quality — OCF should roughly track Net Income over time. Large divergence (net income ≫ OCF) flags accruals risk.
  • Margins — scan the bar ratios: Net Income / Revenue tells you margin trend without needing a separate chart.

TTM (trailing-twelve-month) smooths seasonality and is used for the P/E calculation. Filings appear 30–90 days after the period closes.

Trailing P/E
—
TTM Diluted EPS
$0.05
TTM Revenue
$1.04B
TTM Net Income
$6.74M
TTM Op. Cash Flow
$269.57M
Quarterly figures (12 quarters)
QuarterPeriod EndRevenueNet IncomeDiluted EPSOp. Cash Flow
Q2 '262026-06-30$268.51M$3.81M$0.03$44.72M
Q1 '262026-03-31$262.06M$1.41M$0.01$87.97M
Q4 '252025-12-31$260.53M$-737.00K$-0.01$83.03M
Q3 '252025-09-30$252.44M$2.26M$0.02$53.85M
Q2 '252025-06-30$247.29M$-14.71M$-0.12$42.46M
Q1 '252025-03-31$239.14M$-22.93M$-0.19$87.41M
Q4 '242024-12-31$235.73M$1.87M$0.01$81.12M
Q3 '242024-09-30$227.09M$-9.21M$-0.08$54.61M
Q2 '242024-06-30$221.24M$-14.57M$-0.12$31.42M
Q1 '242024-03-31$215.96M$-14.39M$-0.12$50.33M
Q4 '232023-12-31$213.31M$-21.65M$-0.19$38.51M
Q3 '232023-09-30$201.53M$-15.56M$-0.13$42.41M
Q2 2026 • period ending 2026-06-30 • filed 2026-08-04
Valuation

Ratios derived from TTM financials and the current market price, sampled daily. History chart shows how expensive the stock is today relative to its own recent past.

Price Multiples
  • P/E — price / TTM earnings. Rough market rule: 10–15 value, 15–25 market, >30 growth/premium. Negative when earnings are negative.
  • P/B — price / book value. Useful for financials and asset-heavy names; meaningless for asset-light software.
  • P/S — price / TTM revenue. Useful when earnings are negative or noisy (early-stage growth).
  • EV/EBITDA — capital-structure-neutral. <10 cheap, 10–15 reasonable, >20 rich. Good for comparing across leverage profiles.
  • EV/Sales — like P/S but accounts for debt + cash. Compare within sector.
Profitability & Yields
  • ROE — return on equity. >15% strong, >25% exceptional. Caution: high leverage inflates ROE.
  • ROA — return on assets. Leverage-neutral; >5% solid, >10% exceptional.
  • Div Yield — annual dividend / price. Compare to 10Y Treasury; sustained yield >6% often signals distress.
  • FCF Yield — free cash flow / market cap. >5% is attractive; negative means burning cash.
Balance Sheet
  • Debt/Equity — leverage. <1 conservative, >2 aggressive. Sector-dependent (utilities naturally high, tech low).
  • Current Ratio — short-term liquidity. >1.5 comfortable, <1 raises short-term solvency flags.
Reading the history chart
  • Compare current level to the 3-year band: near the high end = relatively expensive; near the low = relatively cheap.
  • Multiples expanding while earnings are flat = sentiment-driven rally.
  • Multiples compressing while earnings grow = value coming from fundamentals.
P/E
1035.60
P/B
30.90
P/S
5.87
EV/EBITDA
74.66
EV/Sales
6.09
ROE
3.4%
ROA
0.4%
Div Yield
0.00%
FCF Yield
4.40%
Debt/Equity
1.78
Current Ratio
—
Market Cap
$6.13B
as of 2026-10-29
Short Interest & Float

Regulatory short-interest reports publish on a bi-weekly settlement cadence; short-volume is reported daily by the trade-reporting facilities. Float is derived from insider-ownership filings.

Metric definitions
  • Short Interest — total shares currently sold short as of the settlement date. Lags real time by ~8 business days.
  • SI % of Float — short interest / free float. The key crowding metric.
  • Days to Cover — short interest / avg daily volume. How many full trading days it would take shorts to buy back. High DTC + catalyst = squeeze fuel.
  • Short Vol Ratio — today's short-sale volume / total volume. Intraday selling pressure proxy (not the same as short interest).
  • Free Float — shares available for public trading (total shares minus insider / restricted).
  • Float % — free float / shares outstanding. <50% = tightly held, more prone to squeezes.
How to read the signals
  • SI % of Float < 5% — typical, no particular signal.
  • 5–15% — elevated; watch for catalysts (earnings, guidance, macro).
  • 15–30% — heavily shorted; tight-float names in this range have produced notable squeezes historically.
  • >30% — extreme; borrow is likely expensive and squeeze risk is material.
  • Days to Cover > 5 combined with high SI% amplifies squeeze potential.
History chart
  • Trend matters more than level. Rapidly rising short interest often precedes negative catalysts or heavy hedging.
  • A sudden drop in SI after a rally may indicate a squeeze in progress.

Short interest is reported mid-month and end-of-month; short volume is daily.

Short Interest
15.63M
SI % of Float
14.45%
Days to Cover
4.47
Short Vol Ratio
76.3%
Free Float
108.18M
Float %
98.2%
Short interest 2026-09-30 • Short volume 2026-10-29 • Float 2026-09-22