Who
Marcio Souza
Chief Executive Officer
Company insider
Files Form 4 as: Chief Executive Officer, Praxis Precision Medicines; Director, Spyre Therapeutics; Chief Operating Officer, PTC Therapeutics.
In numbers
- Trades disclosed
- 85
- Buys
- 6
- Sells
- 7
- Bought
- $422K
- Sold
- $5.5M
- Companies
- 3
- Companies where not an officer
- 1
- First trade
- 31 May 2017
- Last trade
- 8 Jul 2026
- Last filed
- 8 Jul 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 8 Jul 2026filed 8 Jul 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code G | —20,521 at $0.00 | filing |
| 8 Jul 2026filed 8 Jul 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code G | —2,600 at $0.00 | filing |
| 8 Jul 2026filed 8 Jul 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code G | —20,521 at $0.00 | filing |
| 8 Jul 2026filed 8 Jul 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code G | —2,600 at $0.00 | filing |
| 14 May 2026filed 19 May 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code A | $21K126 at $167.94 | filing |
| 14 May 2026filed 19 May 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code A | $21K126 at $167.94 | filing |
| 10 Jan 2026filed 12 Jan 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code F | $1.2M4,252 at $288.45 | filing |
| 10 Jan 2026filed 12 Jan 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code F | $1.2M4,252 at $288.45 | filing |
| 8 Jan 2026filed 12 Jan 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code A | —27,640 at $0.00 | filing |
| 8 Jan 2026filed 12 Jan 2026 | PRAX Praxis Precision Medicinesoption or derivative · Biotechnology | SEC FORM 4 Code A | —22,110 at $0.00 | filing |
| 8 Jan 2026filed 12 Jan 2026 | PRAX Praxis Precision Medicinesoption or derivative · Biotechnology | SEC FORM 4 Code A | —22,110 at $0.00 | filing |
| 8 Jan 2026filed 12 Jan 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code A | —27,640 at $0.00 | filing |
| 7 Jan 2026filed 9 Jan 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code F | $119K405 at $292.63 | filing |
| 7 Jan 2026filed 9 Jan 2026 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code F | $119K405 at $292.63 | filing |
| 30 Dec 2025filed 31 Dec 2025 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code G | —400 at $0.00 | filing |
| 14 May 2025filed 19 May 2025 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code A | $11K348 at $31.54 | filing |
| 12 Feb 2025filed 14 Feb 2025 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code F | $34K401 at $85.40 | filing |
| 10 Jan 2025filed 14 Jan 2025 | PRAX Praxis Precision Medicinesoption or derivative · Biotechnology | SEC FORM 4 Code A | —75,000 at $0.00 | filing |
| 10 Jan 2025filed 14 Jan 2025 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code A | —37,500 at $0.00 | filing |
| 7 Jan 2025filed 8 Jan 2025 | PRAX Praxis Precision MedicinesBiotechnology | SEC FORM 4 Code F | $34K434 at $77.52 | filing |
News
PTC Therapeutics (NASDAQ:PTCT) & Aktis Oncology (NASDAQ:AKTS) Head to Head ContrastPTCT · dailypolitical.com · 19 Oct 2026Financial Review: Intellia Therapeutics (NASDAQ:NTLA) versus Spyre Therapeutics (NASDAQ:SYRE)SYRE · themarketsdaily.com · 19 Oct 2026Spyre Therapeutics Announces Clinical and Preclinical Data Presentations at United European Gastroenterology Week (UEGW) 2026SYRE · manilatimes.net · 18 Oct 2026PTC Therapeutics (NASDAQ:PTCT) Director Michael Schmertzler Sells 2,500 Shares of Company StockPTCT · tickerreport.com · 16 Oct 2026Avalo Therapeutics (NASDAQ:AVTX) versus Praxis Precision Medicines (NASDAQ:PRAX) Financial AnalysisPRAX · tickerreport.com · 16 Oct 2026Analyzing Lisata Therapeutics (NASDAQ:LSTA) & Praxis Precision Medicines (NASDAQ:PRAX)PRAX · tickerreport.com · 11 Oct 2026PTC Therapeutics (NASDAQ:PTCT) Stock: Insider Mark Elliott Boulding Sells 1,638 SharesPTCT · themarketsdaily.com · 9 Oct 2026
0 headlines in the last 90 days name Marcio Souza; 7 articles from the last 14 days about the 3 companies they traded most, at most three about any one of them.