THURMOND MARK C.

PrivateCIK: 1651579
Location

COLUMBIA, MD

THURMOND MARK C. (Co-Chief Executive Officer) sold 2.4% of their position (2.54K shares) of TENABLE HOLDINGS, INC. on the open market

Open‑market sale worth $75.8K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderTHURMOND MARK C.CIK 1651579
IssuerTENABLE HOLDINGS, INC.CIK 1660280
DirectorOfficer· Co-Chief Executive Officer
Since Feb 2026
-2.54K
Net shares
Net seller
$75.8K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
2.54K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

2.54K

Price / share

$29.84

Trade value

$75.82K

% of position

2.4%
8/26/2025
107.54K105K
Total

Net shares

2.54K

Net value

-$75.82K

Derivative Transactions0
No derivative transactions reported
THURMOND MARK C. — Insider Transaction (Form 4) Filed Aug 27, 2025 | Finecho