Skip to main content
Signal8

Brown Matthew Charles

SEC insider (Form 3/4/5 filer). CIK 0001766979. Chief Financial Officer at Tenable Holdings, Inc. (TENB) and 1 other issuer. 18 reported Form 4/5 transactions since Sep 2024; latest on Aug 21, 2026. Located in COLUMBIA, MD.

Companies Brown Matthew Charles has filed insider reports for

  • Tenable Holdings, Inc. (TENB): Officer, Chief Financial Officer
  • Altair Engineering Inc. (ALTR): Officer, Chief Financial Officer
Brown Matthew Charles profile photo

Brown Matthew Charles

CIK: 0001766979

Transaction Breakdown

Open Market Buys (P)1 (5.6%)

High conviction signal

Open Market Sales (S)3 (16.7%)

Position reduction

Option Exercises (M)4 (22.2%)

Derivative conversions

Awards (A)4 (22.2%)

Compensation grants

Other (G, F, J, C, D, …)6 (33.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

Tenable Holdings, Inc. logo
TENB

Tenable Holdings, Inc.

Officer
Altair Engineering Inc. logo
ALTR

Altair Engineering Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (18 total)

  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    Aug 21, 2026
    Tax Payment
    Direct
    7.4K shares at avg. $34.38$254K
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    Aug 21, 2026
    Exercise
    Direct
    14.5K shares-
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    May 21, 2026
    Exercise
    Direct
    14.5K shares-
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    May 21, 2026
    Tax Payment
    Direct
    5.2K shares at avg. $25.17$131K
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    May 4, 2026
    Purchase
    Direct
    12K shares at avg. $21.54$258K
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    Feb 26, 2026
    Award

    Restricted Stock Units

    Direct
    141.9K shares-
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    Feb 23, 2026
    Exercise
    Direct
    14.5K shares-
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    Feb 23, 2026
    Tax Payment
    Direct
    5.3K shares at avg. $17.55$92K
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    Nov 21, 2025
    Tax Payment
    Direct
    5.3K shares at avg. $26.06$138K
  • Tenable Holdings, Inc. logo
    TENB

    Tenable Holdings, Inc.

    Nov 21, 2025
    Exercise
    Direct
    14.5K shares-

1-10 of 18