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Stock Insider Trading Activity of Brown Matthew Charles
Brown Matthew Charles
Buy
Chief Financial Officer
TENB May 4, 2026
Avg Cost/Share
$21.54
Shares
12,000
Total Value
$258,480.00
Owned After
30,541
SEC Form 4
Brown Matthew Charles
Sell
Chief Financial Officer
ALTR Mar 3, 2025
Avg Cost/Share
$111.45
Shares
742
Total Value
$82,695.90
Owned After
68,652
SEC Form 4
Brown Matthew Charles
Sell
Chief Financial Officer
ALTR Feb 26, 2025
Avg Cost/Share
$111.53
Shares
3,811
Total Value
$425,040.83
Owned After
68,652
SEC Form 4
Brown Matthew Charles
Sell
Chief Financial Officer
ALTR Dec 23, 2024
Avg Cost/Share
$108.90
Shares
1,048
Total Value
$114,127.20
Owned After
68,652
SEC Form 4
Brown Matthew Charles
Sell
Chief Financial Officer
ALTR Mar 4, 2024
Avg Cost/Share
$85.32
Shares
883
Total Value
$75,337.56
Owned After
68,652
SEC Form 4
Brown Matthew Charles
Sell
Chief Financial Officer
ALTR Feb 28, 2024
Avg Cost/Share
$83.65
Shares
4,363
Total Value
$364,969.31
Owned After
68,652
SEC Form 4
| Insider | Ticker | Relationship | Date | Transaction | Avg Cost | Shares | Total Value | Owned After | SEC Forms |
|---|---|---|---|---|---|---|---|---|---|
| Brown Matthew Charles | TENB | Chief Financial Officer | May 4, 2026 | Buy | $21.54 | 12,000 | $258,480.00 | 30,541 | |
| Brown Matthew Charles | ALTR | Chief Financial Officer | Mar 3, 2025 | Sell | $111.45 | 742 | $82,695.90 | 68,652 | |
| Brown Matthew Charles | ALTR | Chief Financial Officer | Feb 26, 2025 | Sell | $111.53 | 3,811 | $425,040.83 | 68,652 | |
| Brown Matthew Charles | ALTR | Chief Financial Officer | Dec 23, 2024 | Sell | $108.90 | 1,048 | $114,127.20 | 68,652 | |
| Brown Matthew Charles | ALTR | Chief Financial Officer | Mar 4, 2024 | Sell | $85.32 | 883 | $75,337.56 | 68,652 | |
| Brown Matthew Charles | ALTR | Chief Financial Officer | Feb 28, 2024 | Sell | $83.65 | 4,363 | $364,969.31 | 68,652 |