TENB Tenable Holdings, Inc.

NASDAQ
$30.11

Tenable Holdings, Inc. (TENB) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with TENB's own trailing one-year pace, with 2% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 2 sellers in the last 90 days
Insiders buying
3
3 transactions
Insiders selling
4
8 transactions
Purchases
$616.2K
28,500 shares
Sales
$3.1M
121,805 shares
Net activity
-$2.5M
purchases less sales

How much of that selling was preplanned? 2% planned / 98% discretionary

10b5-1 plan sales $65.4K 1 transaction · 1,819 shares
Discretionary sales $3.0M 7 transactions · 119,986 shares

Largest single sale: $2.9M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: May 4, 2026 , by Brown Matthew Charles .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Zecher Linda Kay Director Sell 690 $35.76 $24.7K 7,012 −9% of holding
Zecher Linda Kay Director Sell 700 $35.46 $24.8K 7,702 −8.3% of holding
Vicks Raymond Jr. Director Sell 10b5-1 1,819 $35.94 $65.4K 20,509 −8.1% of holding
Zecher Linda Kay Director Sell 550 $36.50 $20.1K 8,402 −6.1% of holding
Zecher Linda Kay Director Sell 600 $36.00 $21.6K 8,952 −6.3% of holding
Zecher Linda Kay Director Sell 1,470 $34.00 $50.0K 9,552 −13.3% of holding
Brown Matthew Charles Chief Financial Officer Buy 12,000 $21.54 $258.5K 30,541
Vicks Raymond Jr. Director Buy 4,500 $22.17 $99.8K 16,266
COVIELLO ARTHUR W JR Director Buy 12,000 $21.50 $258.0K 51,731
SEAWELL A BROOKE Director Sell 115,000 $24.82 $2.9M None left
Anschutz Barron Other Sell 976 $29.10 $28.4K 61,420 −1.6% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.