As of the latest Form 4 filed Jul 8, 2026.
What Praxis Precision Medicines Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 24 most recent filings for PRAX.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-08 | 2026-07-08 | Souza Marcio Chief Executive Officer | GGift | −2.60K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-07-08 | 2026-07-08 | Souza Marcio, Chief Executive Officer | GGift | −20.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill Director | SSale | −837.00 | $315.71 | $264K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −1.28K | $314.90 | $403K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −504.00 | $313.66 | $158K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −1.00K | $312.83 | $314K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −2.85K | $311.91 | $890K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −1.75K | $310.89 | $544K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −999.00 | $309.38 | $309K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −1.24K | $308.24 | $382K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −683.00 | $306.77 | $210K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −320.00 | $305.31 | $97.7K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −120.00 | $303.13 | $36.4K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | SSale | −10.00 | $301.44 | $3.01K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | MExercise | +3.03K | $147.30 | $447K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | DeSimone Jill, Director | MExercise | +8.57K | $44.25 | $379K | Yes (planned) | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Arbuckle Stuart A Director | AAward | +1.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Chodakewitz Jeffrey Director | AAward | +1.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | YOUNG WILLIAM D Director | AAward | +1.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | DeSimone Jill Director | AAward | +1.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Cudkowicz Merit Ester Director | AAward | +1.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | MITCHELL DEAN J Director | AAward | +1.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | KINDLER JEFFREY B Director | AAward | +1.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Norden Gregory Director | AAward | +1.37K | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also PRAX’s full analysis or the market-wide insider trading feed. The tabs above jump to PRAX’s other SEC data.
Source: SEC Form 4 filings for PRAX, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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