Welcome to our dedicated page for Tenable Holdings SEC filings (Ticker: TENB), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Tenable Holdings, Inc. filings document the public-company reporting record for a cybersecurity software issuer focused on exposure management. Its Form 8-K reports furnish quarterly and annual operating results, financial condition updates, and capital actions such as board-approved increases to the company’s share repurchase program.
Proxy materials describe annual meeting matters, director elections, board recommendations, executive compensation, equity awards, and stockholder voting procedures. The filing record also includes material-event and capital-structure disclosures tied to governance, shareholder voting matters, and the company’s ongoing reporting obligations as a Nasdaq-listed operating company.
Tenable Holdings, Inc. (TENB) completed a private offering of $800 million aggregate principal amount of 0.25% Convertible Senior Notes due 2031, including the full exercise of the initial purchasers’ option. The notes are senior unsecured, pay interest semiannually, and mature on September 15, 2031, unless earlier converted, redeemed or repurchased.
The notes are initially convertible at 22.3005 shares per $1,000 principal (an initial conversion price of $44.84 per share), a 40% premium to the $32.03 last reported share price, with customary adjustment and “make-whole” provisions. Based on this rate, they are convertible into 17,840,400 shares, and in limited circumstances up to 24,976,560 shares. Tenable may redeem the notes for cash starting September 20, 2029, subject to a 130% stock-price trigger and a sub‑$80 million cleanup redemption feature, and holders have a repurchase right upon a fundamental change.
Tenable entered into capped call transactions with a cap price of $64.06 (a 100% premium to $32.03), intended to reduce potential dilution or cash outlay upon conversion. Net proceeds were approximately $778.8 million, used to pay about $64.1 million for the capped calls, repurchase about $170.5 million of common stock (roughly 5.3 million shares), repay in full term loans under its 2021 credit agreement, and for general corporate purposes. The credit agreement was terminated effective September 15, 2026.
Tenable Holdings, Inc. (TENB) received an amended Schedule 13G filing showing that Vanguard Portfolio Management reports beneficial ownership of 11,212,876 shares of Tenable common stock, representing 10.18% of the class. Vanguard reports sole voting power over 106,224 shares and sole dispositive power over 11,212,876 shares, with no shared voting or dispositive power.
The filing explains that this ownership reflects securities beneficially owned, or deemed beneficially owned, by Vanguard Portfolio Management LLC together with certain affiliated entities and Vanguard funds or accounts over which they exercise dispositive and/or voting power. Vanguard states that while various clients and funds have rights to dividends or sale proceeds, no other single person has an interest in more than 5% of the class through these holdings.
Tenable Holdings, Inc. (TENB) received an amended Schedule 13G filing showing that BlackRock, Inc., through certain of its business units, reports beneficial ownership of 19,326,921 shares of Tenable common stock, representing 17.5% of the class.
BlackRock reports sole voting power over 19,143,175 shares and sole dispositive power over all 19,326,921 shares, with no shared voting or dispositive power. The filing notes that one underlying holder, iShares Core S&P Small-Cap ETF, has an interest in more than five percent of Tenable’s outstanding common stock.
Tenable Holdings, Inc. (TENB) reported insider equity activity by Co-Chief Executive Officer Mark C. Thurmond. On August 24, 2026, multiple tranches of Performance Restricted Stock Units (PRSUs) and Restricted Stock Units (RSUs) converted into common stock as they vested, reflecting previously granted equity awards.
The filing shows exercises or conversions covering 25,369 shares12,268 shares$33.9493.9%96.4%97.2%
Tenable Holdings, Inc. (TENB) reported insider equity activity by Chief Financial Officer Matthew Charles Brown. On 2026-08-21, 14,544 Restricted Stock Units (RSUs), each representing one share of common stock, were exercised and converted into 14,544 shares of common stock. Following this conversion, Brown held 174,536 RSUs directly.
On the same date, 7,400 shares of common stock were withheld by Tenable at $34.38 per share to satisfy income tax withholding and remittance obligations in connection with the net settlement of the RSUs; the issuer states this does not represent a sale. The RSUs subject to this award will vest in 16 equal quarterly installments over four years starting November 21, 2025, contingent on continued service and with potential accelerated vesting in specified circumstances. The filing indicates the Rule 10b5-1 trading plan checkbox was not selected.
Tenable Holdings, Inc. (TENB) reported insider equity activity by Chief Accounting Officer Barron Anschutz. On August 24, 2026, 4,224 Restricted Stock Units were exercised or converted into 4,224 shares of common stock. In connection with this net settlement, 2,022 shares of common stock were withheld by the issuer at $33.94 per share to satisfy income tax withholding and remittance obligations, and the filing states this withholding "does not represent a sale." The RSUs vest over time in quarterly installments, subject to continued service and potential accelerated vesting in specified circumstances.
Tenable Holdings, Inc. (TENB) reported that Co-Chief Executive Officer Stephen A. Vintz settled multiple tranches of Performance Restricted Stock Units (PRSUs) and Restricted Stock Units (RSUs) into common stock on August 24, 2026. These derivative exercises converted 27,413 shares of stock units into an equal number of shares of common stock. In connection with the net settlement of these RSUs, the issuer withheld 13,121 shares of common stock at $33.94 per share to satisfy income tax withholding and remittance obligations, which the company states does not represent a sale.
Tenable Holdings, Inc. (TENB) director Linda Kay Zecher reported two open-market sales of common stock. On August 18, 2026 she sold 700 shares at a weighted average price of $35.46, with individual trades between $35.38 and $35.54. On August 19, 2026 she sold 690 shares at a weighted average price of $35.76, with trades between $35.74 and $35.99. The Rule 10b5-1 trading-plan box was not checked.
Tenable Holdings, Inc. (TENB) director Linda Zecher-Higgins filed a Rule 144 notice to sell shares of the company’s common stock. The filing lists a proposed sale of 1,400 shares of common stock, with J.P. Morgan Securities LLC acting as agent and attorney-in-fact.
The filing also reports prior sales by Linda Zecher-Higgins during the past three months: 1,470 shares of common stock on August 3, 2026, 600 shares on August 4, 2026, and 550 shares on August 7, 2026.
Tenable Holdings, Inc. director Raymond Jr. Vicks reported an open-market sale of 1,819 shares of common stock on 2026-08-07 at $35.94 per share, executed under a Rule 10b5-1 trading plan. Following the sale, he holds 20,509 shares directly and 4,500 shares indirectly as custodian for his granddaughter under a UTMA custodial account.