Gail Boxer Marcus
CIK 1702176 · last filed 2026-06-09
Gail Boxer Marcus is a corporate insider who has filed 63 SEC Form 4 insider transactions across 2 companies since 2017. The most recent filing, for NTRA, was dated Jun 9, 2026. Across all open-market trades the lifetime net is −$10.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.3M across reported positions.
"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.
$1.31M
2
63
-$10.06M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NTRA | Director | 6,183 | $212.07 | $1.31M | -$10.06M | 57 | 2026-06-09 |
| TRIPLE-S MANAGEMENT CORP (GTS) Delisted | Director | — | $35.99 | — | $0 | 5 | 2021-05-05 |
Recent Filings
63 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-09 | NTRA | Mixed | — | -$2.14M | EDGAR |
| 2026-04-28 | NTRA | Grant (A) | +330 | $0 | EDGAR |
| 2026-02-03 | NTRA | Grant (A) | +91 | $0 | EDGAR |
| 2025-11-04 | NTRA | Mixed | −1 | -$24.2K | EDGAR |
| 2025-08-05 | NTRA | Sell (S) | −2,496 | -$332.4K | EDGAR |
| 2025-07-29 | NTRA | Grant (A) | +141 | $0 | EDGAR |
| 2025-07-03 | NTRA | Mixed | — | -$614.5K | EDGAR |
| 2025-07-01 | NTRA | Grant (A) | +2,414 | $0 | EDGAR |
| 2025-06-11 | NTRA | Sell (S) | −4,000 | -$657.8K | EDGAR |
| 2025-05-02 | NTRA | Mixed | — | -$508.8K | EDGAR |