Lauren Mastrocola insider trades: Praxis Precision Medicines (PRAX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Lauren reports to the SEC
Open-market buys and sales
3 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 20, 2025 | PRAX | ↓ Sell | 13,600 | $192.08 | $2.6M | Direct | Nov 21, 2025 (1d) |
| Nov 14, 2024 | PRAX | ↓ Sell | 5,188 | $81.78 | $424K | Direct | Nov 15, 2024 (1d) |
| Jun 16, 2022 | PRAX | ↑ Buy | 3,000 | $1.93 | $6K | Direct | Jun 21, 2022 (5d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other PRAX insiders
Open-market trades in the last 12 months
About Lauren Mastrocola's insider trades
Lauren Mastrocola is Principal Accounting Officer at Praxis Precision Medicines (PRAX). Since Jun 16, 2022, Lauren has reported 1 open-market purchase worth $6K and 2 sales worth $3.0M on SEC Form 4. In the last 12 months: 1 sale ($2.6M).
Their filings also include grants and awards (12 filings), shares withheld for taxes (10 filings), option exercises (3 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every PRAX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.