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TENB Tenable Holdings, Inc. Insider Trading

Latest: Chief Financial Officer Bought $258K of Shares · May 2026

Multiple insiders have been active at Tenable Holdings, Inc. (TENB): 5 distinct insiders account for 3 buy filings and 2 sell filings as of May 2026. Its highest-significance filing in the last 90 days: Chief Financial Officer Brown Matthew Charles bought $258K, transaction dated May 2026.

5 filings analyzed · Latest 2026-05-05

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Buys
3
Sells
2
Insiders
5
Direction
Net buying

Tenable Holdings, Inc. leadership

CEO
Stephen Vintz And Mark Thurmond — Co-Chief Executive Officer
CFO
Matthew Brown — Chief Financial Officer
General Counsel
Michelle Vonderhaar — Chief Legal Officer and Corporate Secretary
Chair
Jr. Arthur W. Coviello — Chairman of our Board
High conviction

This is a high-conviction signal — the insider is a first-time or occasional buyer, historically the strongest subset. Such buys have outperformed the S&P 500 by a median ~3% over the 30 days after the trade (n ≈ 3,001, 2024-2026). Past results don't predict the future. How we measure this ↗

May 2026
2026-05-05
high
Chief Financial Officer
12,000 shares
$258,480
@ $21.54
Significance 7

CFO Matthew Brown purchases 12,000 shares (65% stake increase) as Tenable trades well below 52-week highs amid improving quarterly profitability.

Matthew Brown, Tenable's CFO, made his first open-market share purchase in the past three years by acquiring 12,000 shares, roughly doubling his existing holdings. This marks a meaningful reversal from his prior pattern: he had sold shares five times over the preceding three years but had never before bought on the open market. The timing is notable—Brown is buying while the stock trades significantly below its 52-week high, yet the company just posted its first profitable quarter after running losses, with revenue growing steadily. This is the kind of trade that tends to draw investor attention: a C-suite executive with intimate knowledge of operations stepping up to own more stock precisely when fundamentals are inflecting positive but the market hasn't fully repriced the shift.

February 2026
2026-02-13
high
4,500 shares
$99,765
@ $22.17
Significance 6

Director Vicks Raymond Jr. buys 4,500 shares of TENB at $22.17; holdings rise to 16,266 shares, a +38.2% increase.

Director Vicks Raymond Jr. purchased 4,500 shares at $22.17 on 2026-02-12, increasing his holdings by 38.2% to 16,266 shares. The transaction occurs at a price that is -44.8% from the company's 52-week high of $40.85, suggesting the purchase was made during a period of significant stock weakness relative to recent performance. The company generated $252.4M in quarterly revenue with 12.7% annual growth, but posted negative full-year net income, indicating profitability challenges despite revenue expansion. The director's substantial equity accumulation at a depressed price level, combined with the company's mixed financial signals—solid growth but continued losses—presents a material data point for investors monitoring insider positioning during a challenging period for the business.

2026-02-09
medium
12,000 shares
$258,000
@ $21.50
Significance 6

Director Coviello buys 12,000 TENB shares at $21.50; now holds 51,731 shares (+30.2%) as stock trades -49.4% from 52-week high.

Director Arthur W. Coviello Jr. purchased 12,000 shares at $21.50, bringing his total holdings to 51,731 shares and increasing his position by 30.2%. The transaction occurs in a notably unfavorable price environment: the stock is currently trading at $21.87, down 49.4% from its 52-week high of $43.21 and down 22.0% over the past 90 days. The company shows mixed financial fundamentals—annual revenue growth of 12.7% and quarterly revenue of $252.4M are offsetting factors, but the company remains unprofitable on a full-year basis despite posting $2.3M in quarterly net income. A director accumulating shares at significantly depressed valuation levels while the company operates at the bottom of its 52-week range warrants close monitoring of underlying business trajectory and any forward guidance changes.

December 2025
2025-12-17
high
115,000 shares
$2,854,300
@ $24.82
Significance 6

Director Seawell A Brooke sold 115,000 shares (100% of holdings) at $24.82 for $2.9M; stock now down -5.4% in 30 days.

Seawell A Brooke, a director at Tenable, executed a complete liquidation of her position, selling all 115,000 shares at $24.82 on 2025-12-15 for $2.9M total value. The timing is notable: the stock has declined -5.4% over the 30 days following the sale and stands -44.6% below its 52-week high of $44.50, suggesting the sale occurred during a period of weakness. Tenable's fundamentals are mixed—revenue grew +12.7% year-over-year to $252.4M last quarter, but the company remains unprofitable on a full-year basis with negative net income. Across her cross-ticker history, Brooke's 20 prior open-market sales show an average 90-day return of +14.9% and a 0.00% well-timed rate, indicating those prior sales were consistently poorly timed (subsequent gains were common). The full exit of board-level holdings warrants attention given the scale and the current valuation pressure, though the pattern does not align with a director signaling conviction.

August 2024
2024-08-01 10b5-1 Plan
low
Yoran Amit Sell
President, CEO and Chairman
40,000 shares
$1,908,614
@ $47.72
Significance 3

Yoran Amit, then-CEO of Tenable Holdings, sold 40,000 shares (9.4% reduction) for $1.9M via scheduled 10b5-1 plan

Yoran Amit executed two separate sales totaling 40,000 shares on 2024-07-30 at blended average price $47.72 under a pre-arranged 10b5-1 trading plan, reducing his holdings from 427,356 shares to 387,356 shares. This represents a 9.4% reduction in his position. The scheduled nature of this transaction means it was pre-determined and not discretionary, limiting inference about current sentiment or timing decisions. Post-transaction, Amit retains substantial holdings at Tenable, indicating continued significant ownership alignment with the company.

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