Matthew Rabinowitz
CIK 1646382 · EXECUTIVE CHAIRMAN · last filed 2026-08-07
"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.
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Disclosed Exposure
$730.50M
Companies
1
Total Filings
127
Lifetime Open-Market Net
-$226.70M
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 | EXECUTIVE CHAIRMAN | 2,277,394 | $320.76 | $730.50M | -$226.70M | 108 | 2026-08-07 |
Recent Filings · Page 6 of 13
127 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 |
|---|---|---|---|---|---|
| 2024-02-23 | NTRA | Exer (M) | +380,036 | $1.01M | EDGAR |
| 2024-01-30 | NTRA | Mixed | +68,976 | $0 | EDGAR |
| 2023-03-24 | NTRA | Mixed | −2,203 | -$146.6K | EDGAR |
| 2023-03-21 | NTRA | Grant (A) | +2,484 | $0 | EDGAR |
| 2023-01-31 | NTRA | Grant (A) | — | $0 | EDGAR |
| 2023-01-04 | NTRA | Mixed | +4,057 | -$107.0K | EDGAR |
| 2022-12-27 | NTRA | Exer (M) | +400 | $0 | EDGAR |
| 2022-09-26 | NTRA | Exer (M) | +400 | $0 | EDGAR |
| 2022-06-24 | NTRA | Exer (M) | +400 | $0 | EDGAR |
| 2022-05-17 | NTRA | Grant (A) | — | $0 | 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.