// insider-profile
Mason David W
// activity-summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $3.3M across 2 transactions.
// track-record
$0
Total purchased
$1.5M
Total sold
9
0B · 9S transactions
Net seller
Overall direction
Most active in
Filing history: Nov 2023 — Apr 2026Based on last 21 filings
Transaction History
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Apr 28, 2026 | Mason David W | SEMR | Disposition | 271,248 | $12.00 | $3.25M |
| Apr 28, 2026 | Mason David W | SEMR | Disposition | 144,717 | — | — |
| Mar 5, 2026 | Mason David W | SEMR | Sale | 97,372 | $11.93 | $1.16M |
| Dec 15, 2025 | Mason David W | SEMR | Award | 143,338 | $0.00 | $0K |
| Dec 15, 2025 | Mason David W | SEMR | Tax Withholding | 26,054 | $11.86 | $309K |
16 more transactions hidden
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