Michael Burkes Brophy
CIK 1697362 · CHIEF FINANCIAL OFFICER · last filed 2026-08-05
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Loading insider history…
Disclosed Exposure
$16.56M
Companies
1
Total Filings
195
Lifetime Open-Market Net
-$83.64M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NTRA | CHIEF FINANCIAL OFFICER | 51,637 | $320.76 | $16.56M | -$83.64M | 150 | 2026-08-05 |
Recent Filings · Page 4 of 20
195 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-07-30 | NTRA | Sell (S) | −5,064 | -$700.7K | EDGAR |
| 2025-07-29 | NTRA | Notice (144) | −3,045 | -$420.2K | EDGAR |
| 2025-07-24 | NTRA | Notice (144) | −755 | -$104.1K | EDGAR |
| 2025-07-24 | NTRA | Mixed | −920 | -$303.7K | EDGAR |
| 2025-07-22 | NTRA | Notice (144) | −920 | -$129.4K | EDGAR |
| 2025-07-22 | NTRA | Mixed | +920 | -$83.9K | EDGAR |
| 2025-04-30 | NTRA | Sell (S) | −5,063 | -$776.6K | EDGAR |
| 2025-04-29 | NTRA | Notice (144) | −3,045 | -$465.9K | EDGAR |
| 2025-04-24 | NTRA | Notice (144) | −755 | -$112.2K | EDGAR |
| 2025-04-24 | NTRA | Mixed | −911 | -$321.8K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.