Tenable Adds Charles Bell to Board, Expanding Board to 11 Directors
Tenable Holdings expanded its Board of Directors from 10 to 11 seats and appointed Charles Bell as a Class III director effective October 5, 2026, with a term ending at the 2027 Annual Meeting of Stockholders. Bell also joins the Board's Cybersecurity Risk Management Committee, and the filing sets out his cash retainers and an equity grant, which matter to shareholders as a governance and board-composition change.
Key points
- Board size increased from 10 to 11 directors, effective October 5, 2026.
- Bell received 10,386 restricted stock units vesting in three equal annual installments, plus a $35,000 Board service retainer and a $5,000 Cybersecurity Committee retainer for 2026, prorated for his service.
- Co-CEO Steve Vintz and Co-CEO Mark Thurmond were quoted in an October 6, 2026 press release announcing the appointment.
The filing
Written by AI on Nov 9, 2026, 8:53 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on October 06, 2026.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.