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Tenable Holdings stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+54.0% to $42.13
Tenable Holdings (TENB) stock rose 54% over the last 252 sessions, to $42.13. On the way it reported 4 quarters, its insiders filed 10 open-market trades and 5 Form 144 notices of planned sales, and the company filed 3 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 2, 2026 | Form 144 | Form 144: A Brooke Seawell plans to sell $755K | −6.7% (−6.2% vs SPY) | −18.6% (−15.9% vs SPY) | — |
| Nov 2, 2026 | Form 144 | Form 144: Barron Anschutz plans to sell $510K | −6.7% (−6.2% vs SPY) | −18.6% (−15.9% vs SPY) | — |
| Nov 2, 2026 | Form 144 | Form 144: A Brooke Seawell plans to sell $731K | −6.7% (−6.2% vs SPY) | −18.6% (−15.9% vs SPY) | — |
| Nov 2, 2026 | Insider sale | Seawell A Brooke sold $755K | −6.7% (−6.2% vs SPY) | −18.6% (−15.9% vs SPY) | — |
| Nov 2, 2026 | Insider sale | Anschutz Barron sold $510K | −6.7% (−6.2% vs SPY) | −18.6% (−15.9% vs SPY) | — |
| Oct 28, 2026 | Earnings | Earnings: beat the EPS estimate by 24.1% | +0.1% (−0.2% vs SPY) | −3.4% (−1.4% vs SPY) | — |
| Oct 13, 2026 | 8-K | Material definitive agreement | −8.0% (−6.9% vs SPY) | −5.8% (−4.6% vs SPY) | — |
| Oct 6, 2026 | 8-K | Directors and officers: departures, appointments, pay | +2.5% (+1.9% vs SPY) | +5.7% (+5.3% vs SPY) | +20.0% (+22.7% vs SPY) |
| Sep 15, 2026 | 8-K | Material definitive agreement | −4.6% (−4.2% vs SPY) | −5.9% (−8.2% vs SPY) | +0.1% (−1.8% vs SPY) |
| Aug 19, 2026 | Insider sale | Zecher Linda Kay sold $25K | −3.0% (−3.2% vs SPY) | −10.3% (−10.1% vs SPY) | −0.8% (−0.1% vs SPY) |
| Aug 18, 2026 | Form 144 | Form 144: Linda Zecher Higgins plans to sell $52K | +2.9% (+3.6% vs SPY) | −3.9% (−2.7% vs SPY) | +3.0% (+5.5% vs SPY) |
| Aug 18, 2026 | Insider sale | Zecher Linda Kay sold $25K | +2.9% (+3.6% vs SPY) | −3.9% (−2.7% vs SPY) | +3.0% (+5.5% vs SPY) |
| Aug 7, 2026 | Form 144 | Form 144: Raymond Jr. Vicks plans to sell $65K | +0.6% (0.0% vs SPY) | +10.1% (+8.9% vs SPY) | −5.4% (−5.7% vs SPY) |
| Aug 7, 2026 | Insider sale | Zecher Linda Kay sold $20K | +0.6% (0.0% vs SPY) | +10.1% (+8.9% vs SPY) | −5.4% (−5.7% vs SPY) |
| Aug 4, 2026 | Insider sale | Zecher Linda Kay sold $22K | +2.7% (+0.9% vs SPY) | +4.8% (+2.8% vs SPY) | +1.4% (+0.9% vs SPY) |
| Aug 3, 2026 | Insider sale | Zecher Linda Kay sold $50K | +6.9% (+5.5% vs SPY) | +10.9% (+7.4% vs SPY) | +15.6% (+13.0% vs SPY) |
| Jul 29, 2026 | Earnings | Earnings: beat the EPS estimate by 8.6% | +0.4% (+1.9% vs SPY) | +13.6% (+9.6% vs SPY) | +7.1% (+3.7% vs SPY) |
| May 4, 2026 | Insider buy | Brown Matthew Charles bought $258K | −1.9% (−1.5% vs SPY) | +2.8% (+0.5% vs SPY) | +37.5% (+32.3% vs SPY) |
| Apr 29, 2026 | Earnings | Earnings: beat the EPS estimate by 15.0% | +4.9% (+4.9% vs SPY) | +2.8% (+1.1% vs SPY) | +23.9% (+18.0% vs SPY) |
| Feb 12, 2026 | Insider buy | Vicks Raymond Jr. bought $100K | −1.9% (−0.4% vs SPY) | −3.3% (−2.2% vs SPY) | −10.6% (−6.2% vs SPY) |
| Feb 9, 2026 | Insider buy | Coviello Arthur W Jr. bought $258K | +3.0% (+2.5% vs SPY) | +6.0% (+7.3% vs SPY) | −2.6% (−0.6% vs SPY) |
| Feb 4, 2026 | Earnings | Earnings: beat the EPS estimate by 15.9% | −1.7% (−1.2% vs SPY) | +13.3% (+12.9% vs SPY) | +5.5% (+6.7% vs SPY) |
Insiders’ record here
In the year on the chart, Tenable Holdings' insiders reported 3 open-market buys ($616K) and 7 sales ($1.4M). Of the 6 old enough to score, 1 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was −9.1% and after a sale +34.5%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 1.02 Termination of a material agreement | 2,368 | 0.0% | 51% | +1.1% | ±1.5% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Tenable Holdings: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.