Marcio Souza
CIK 1707657 · Chief Executive Officer · last filed 2026-07-08
Marcio Souza is a Chief Executive Officer who has filed 42 SEC Form 4 insider transactions across 3 companies since 2017. The most recent filing, for PRAX, was dated Jul 8, 2026. Across all open-market trades the lifetime net is −$5.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $24.0M 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.
$24.02M
3
42
-$5.06M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PRAX | Chief Executive Officer | 56,495 | $353.44 | $19.97M | $371.8K | 28 | 2026-07-08 |
| Spyre Therapeutics, Inc. (AGLE) Delisted | Director | 3,600 | $12.01 | $43.2K | $50.5K | 3 | 2022-08-25 |
| PTCT | Chief Operating Officer | 57,466 | $70.56 | $4.05M | -$5.48M | 11 | 2020-02-12 |
Recent Filings
42 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-08 | PRAX | Gift (G) | −23,121 | $0 | EDGAR |
| 2026-05-19 | PRAX | Grant (A) | +126 | $21.2K | EDGAR |
| 2026-01-12 | PRAX | Mixed | +23,388 | -$1.23M | EDGAR |
| 2026-01-09 | PRAX | Tax (F) | −405 | -$118.5K | EDGAR |
| 2025-12-31 | PRAX | Gift (G) | −400 | $0 | EDGAR |
| 2025-05-19 | PRAX | Grant (A) | +348 | $11.0K | EDGAR |
| 2025-02-14 | PRAX | Tax (F) | −401 | -$34.2K | EDGAR |
| 2025-01-14 | PRAX | Grant (A) | +37,500 | $0 | EDGAR |
| 2025-01-08 | PRAX | Tax (F) | −434 | -$33.6K | EDGAR |
| 2024-07-31 | PRAX | Grant (A) | — | $0 | EDGAR |
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.