Insider · CIK 0001707657
Marcio Souza
Files at PRAX (Praxis Precision Medicines, Inc.). First filing Mar 27, 2023, latest Jun 27, 2023.
In brief
Marcio Souza files SEC Form 4 as CEO and director at PRAX (Praxis Precision Medicines, Inc.). Since Mar 27, 2023, Marcio Souza has reported 2 open-market buys worth $71k and 0 open-market sells worth $0, the latest filed on Jun 27, 2023.
A track record needs three past buys with six months of prices behind them; Marcio Souza has 0, so none is measured yet.
The newest scored trade: bought $11k of PRAX on Jun 27, 2023, filed Jun 27, 2023, scored 39 (weak).
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
PRAX: Praxis Precision Medicines, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 39Weak | PRAXbuy Praxis Precision Medicines, Inc. | $11k 10,000 shares | +29% | +33% from low-79% from high | |
| 71Notable | Praxis Precision Medicines, Inc. | $60k 70,002 shares | +37% | 0% from low-93% from high |
Transactions
Every row this insider has filed, 21 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 8, 2026 | PRAX Praxis Precision Medicines, Inc. | GGift Common Stock | -20,521 | $0.00 | $0 | 56,495 | Jul 8, 2026 |
| Jul 8, 2026 | PRAX Praxis Precision Medicines, Inc. | GGift Common Stockindirect: Held by spouse | -2,600 | $0.00 | $0 | 0 | Jul 8, 2026 |
| May 14, 2026 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Common Stock | +126 | $167.94 | $21k | 77,016 | May 19, 2026 |
| Jan 8, 2026 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Common Stock | +27,640 | $0.00 | $0 | 81,142 | Jan 12, 2026 |
| Jan 10, 2026 | PRAX Praxis Precision Medicines, Inc. | FTax withholding Common Stock | -4,252 | $288.45 | $1.2M | 76,890 | Jan 12, 2026 |
| Jan 8, 2026 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +22,110 | $0.00 | $0 | 22,110 | Jan 12, 2026 |
| Jan 7, 2026 | PRAX Praxis Precision Medicines, Inc. | FTax withholding Common Stock | -405 | $292.63 | $119k | 53,502 | Jan 9, 2026 |
| Dec 30, 2025 | PRAX Praxis Precision Medicines, Inc. | GGift Common Stockindirect: Held by spouse | -400 | $0.00 | $0 | 2,600 | Dec 31, 2025 |
| May 14, 2025 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Common Stock | +348 | $31.54 | $11k | 53,907 | May 19, 2025 |
| Jul 29, 2024 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +185,000 | $0.00 | $0 | 185,000 | Jul 31, 2024 |
| May 14, 2024 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Common Stock | +1,718 | $12.37 | $21k | 16,894 | May 20, 2024 |
| Feb 12, 2024 | PRAX Praxis Precision Medicines, Inc. | FTax withholding Common Stock | -271 | $44.65 | $12k | 15,176 | Feb 14, 2024 |
| Jan 12, 2024 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +100,000 | $0.00 | $0 | 100,000 | Jan 17, 2024 |
| Jan 7, 2024 | PRAX Praxis Precision Medicines, Inc. | FTax withholding Common Stock | -418 | $25.19 | $11k | 15,447 | Jan 9, 2024 |
| Jun 27, 2023 | PRAX Praxis Precision Medicines, Inc. | POpen-market purchase Common Stockindirect: Held by spouse | +10,000 | $1.06 | $11k | 45,002 | Jun 27, 2023 |
| May 12, 2023 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Common Stock | +11,687 | $0.88 | $10k | 237,986 | May 18, 2023 |
| Mar 23, 2023 | PRAX Praxis Precision Medicines, Inc. | POpen-market purchase Common Stock | +35,000 | $0.86 | $30k | 226,299 | Mar 27, 2023 |
| Mar 23, 2023 | PRAX Praxis Precision Medicines, Inc. | POpen-market purchase Common Stockindirect: Held by spouse | +35,002 | $0.86 | $30k | 35,002 | Mar 27, 2023 |
| Jan 12, 2023 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +425,000 | $0.00 | $0 | 425,000 | Jan 17, 2023 |
| Jan 12, 2023 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +213,975 | $0.00 | $0 | 213,975 | Jan 13, 2023 |
| Nov 14, 2022 | PRAX Praxis Precision Medicines, Inc. | AGrant or award Common Stock | +2,115 | $1.81 | $3,830 | 191,299 | Nov 21, 2022 |
Questions about Marcio Souza
Answered from the filings on this page, as of the latest one.
Is Marcio Souza buying or selling?
Not in the last 12 months. Marcio Souza's latest open-market trade on SEC Form 4 was bought $11k of PRAX on Jun 27, 2023.
How did Marcio Souza's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Marcio Souza has 0.
Where does Marcio Souza file Form 4?
Marcio Souza has filed Form 4 at PRAX (Praxis Precision Medicines, Inc.) as Chief Executive Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.