Praxis Precision Medicines, Inc. (PRAX)

Latest Insider Confidence Score

2026Q1

62.9
Bullish

Company insider confidence (by quarter)

2020Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Adage Capital Management, L.P. 10% Owner 4,421,660 Oct 17, 2025
Atchinson Robert 10% Owner 4,421,660 Oct 17, 2025
Gross Phillip 10% Owner 4,421,660 Oct 17, 2025
Reddy Kiran — 467,289 Oct 15, 2020
Vitorovic Stefan Director 412,081 Feb 16, 2021

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 6, 2026 Feb 10, 2026 Arbuckle Stuart A Director Neutral 90.0 +1,166 100.00% ✗ -
Feb 6, 2026 Feb 10, 2026 KINDLER JEFFREY B Director Neutral 90.0 +1,166 100.00% ✗ -
Jan 12, 2026 Jan 13, 2026 Mastrocola Lauren Principal Accounting Officer Sell 42.5 -344 -2.49% ✗ $94.9K
Jan 12, 2026 Jan 13, 2026 Sniecinski Megan COO Sell 42.5 -885 -3.01% ✗ $244K
Jan 12, 2026 Jan 13, 2026 Nemiroff Alex General Counsel and Secretary Sell 42.5 -768 -2.88% ✗ $211.8K
Jan 12, 2026 Jan 13, 2026 Kelly Timothy Edwin CFO Sell 40.0 -943 -2.95% ✗ $260K
Jan 8, 2026 Jan 12, 2026 Mastrocola Lauren Principal Accounting Officer Sell 95.0 +3,383 32.51% ✗ $105.9K
Jan 8, 2026 Jan 12, 2026 Sniecinski Megan COO Sell 97.5 +8,538 40.90% ✗ $313.5K
Jan 8, 2026 Jan 12, 2026 Nemiroff Alex General Counsel and Secretary Sell 97.5 +5,958 28.72% ✗ $264.5K
Jan 8, 2026 Jan 12, 2026 Kelly Timothy Edwin CFO Sell 97.5 +7,465 30.44% ✗ $385.1K
Jan 8, 2026 Jan 12, 2026 Souza Marcio CEO Sell 100.0 +23,388 41.69% ✗ $1.2M
Jan 12, 2026 Arbuckle Stuart A Director Neutral 52.5 - 0.00% ✗ -
Jan 12, 2026 KINDLER JEFFREY B Director Neutral 52.5 - 0.00% ✗ -
Jan 7, 2026 Jan 9, 2026 Mastrocola Lauren Principal Accounting Officer Sell 51.3 -35 -0.34% ✗ $10.2K
Jan 7, 2026 Jan 9, 2026 Nemiroff Alex General Counsel and Secretary Sell 51.3 -89 -0.43% ✗ $26K
Jan 7, 2026 Jan 9, 2026 Kelly Timothy Edwin CFO Sell 48.8 -139 -0.56% ✗ $40.7K
Jan 7, 2026 Jan 9, 2026 Souza Marcio CEO Sell 45.0 -405 -0.72% ✗ $118.5K
Jan 9, 2026 Sniecinski Megan COO Neutral 52.5 - 0.00% ✗ -
Dec 30, 2025 Dec 31, 2025 Souza Marcio CEO Neutral 37.5 -400 -0.70% ✗ -
Nov 14, 2025 Nov 21, 2025 Kelly Timothy Edwin CFO Neutral 77.5 +384 1.58% ✗ -
Nov 20, 2025 Nov 21, 2025 Nemiroff Alex General Counsel and Secretary Sell 17.5 -25,130 -54.68% ✗ $4.9M
Nov 20, 2025 Nov 21, 2025 Mastrocola Lauren Principal Accounting Officer Sell 17.5 -13,600 -56.57% ✗ $2.6M
Oct 16, 2025 Oct 17, 2025 Adage Capital Management, L.P. 10% Owner Buy 90.0 +313,910 1.44% ✗ $33.2M
Sep 24, 2025 Sep 25, 2025 MITCHELL DEAN J Director Neutral 52.5 - 0.00% ✗ -
Aug 19, 2025 Adage Capital Management, L.P. 10% Owner Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 MITCHELL DEAN J Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 YOUNG WILLIAM D Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Norden Gregory Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 DeSimone Jill Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Chodakewitz Jeffrey Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2025 Jun 27, 2025 Cudkowicz Merit Ester Director Neutral 52.5 - 0.00% ✗ -
May 14, 2025 May 19, 2025 Souza Marcio CEO Neutral 67.5 +348 0.62% ✗ -
May 14, 2025 May 19, 2025 Kelly Timothy Edwin CFO Neutral 77.5 +249 1.04% ✗ -
Feb 12, 2025 Feb 14, 2025 Nemiroff Alex General Counsel and Secretary Sell 52.5 -51 -0.24% ✗ $4.4K
Feb 12, 2025 Feb 14, 2025 Mastrocola Lauren Principal Accounting Officer Sell 52.5 -40 -0.38% ✗ $3.4K
Feb 12, 2025 Feb 14, 2025 Souza Marcio CEO Sell 48.8 -401 -0.70% ✗ $34.2K
Jan 10, 2025 Jan 14, 2025 Mastrocola Lauren Principal Accounting Officer Sell 91.3 +4,610 78.51% ✗ $24.6K
Jan 10, 2025 Jan 14, 2025 Souza Marcio CEO Neutral 90.0 +37,500 192.70% ✗ -
Jan 10, 2025 Jan 14, 2025 Kelly Timothy Edwin CFO Sell 91.3 +11,824 96.87% ✗ $42.7K
Jan 10, 2025 Jan 14, 2025 Nemiroff Alex General Counsel and Secretary Sell 91.3 +10,671 104.50% ✗ $36.6K
Jan 7, 2025 Jan 8, 2025 Souza Marcio CEO Sell 46.3 -434 -2.18% ✗ $33.6K
Jan 7, 2025 Jan 8, 2025 Mastrocola Lauren Principal Accounting Officer Sell 50.0 -35 -0.59% ✗ $2.7K
Jan 7, 2025 Jan 8, 2025 Nemiroff Alex General Counsel and Secretary Sell 50.0 -89 -0.86% ✗ $6.9K
Jan 7, 2025 Jan 8, 2025 Kelly Timothy Edwin CFO Sell 46.3 -139 -1.13% ✗ $10.8K
Nov 14, 2024 Nov 19, 2024 Mastrocola Lauren Principal Accounting Officer Neutral 85.0 +294 5.24% ✗ -
Nov 14, 2024 Nov 19, 2024 Kelly Timothy Edwin CFO Neutral 77.5 +205 1.69% ✗ -
Nov 14, 2024 Nov 15, 2024 Nemiroff Alex General Counsel and Secretary Sell 20.0 -8,239 -44.44% ✗ $660.8K
Nov 14, 2024 Nov 15, 2024 Mastrocola Lauren Principal Accounting Officer Sell 20.0 -5,188 -48.04% ✗ $424.3K
Jul 29, 2024 Jul 31, 2024 Souza Marcio CEO Neutral 52.5 - 0.00% ✗ -
Jul 29, 2024 Jul 31, 2024 Nemiroff Alex General Counsel and Secretary Neutral 90.0 +7,800 247.07% ✗ -
Jul 29, 2024 Jul 31, 2024 Mastrocola Lauren Principal Accounting Officer Neutral 90.0 +4,500 233.52% ✗ -
Jul 29, 2024 Jul 31, 2024 Kelly Timothy Edwin CFO Neutral 90.0 +7,800 179.72% ✗ -
Jun 5, 2024 Jun 6, 2024 DeSimone Jill Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 6, 2024 MITCHELL DEAN J Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 6, 2024 Chodakewitz Jeffrey Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 6, 2024 Cudkowicz Merit Ester Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 6, 2024 YOUNG WILLIAM D Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 6, 2024 Norden Gregory Director Neutral 52.5 - 0.00% ✗ -
May 14, 2024 May 20, 2024 Kelly Timothy Edwin CFO Neutral 90.0 +606 16.23% ✗ -
May 14, 2024 May 20, 2024 Souza Marcio CEO Neutral 85.0 +1,718 9.45% ✗ -
Feb 12, 2024 Feb 14, 2024 Mastrocola Lauren Principal Accounting Officer Sell 47.5 -48 -2.43% ✗ $2.1K
Feb 12, 2024 Feb 14, 2024 Nemiroff Alex General Counsel and Secretary Sell 47.5 -51 -1.59% ✗ $2.3K
Feb 12, 2024 Feb 14, 2024 Souza Marcio CEO Sell 46.3 -271 -1.75% ✗ $12.1K
Jan 12, 2024 Jan 17, 2024 Kelly Timothy Edwin CFO Neutral 52.5 - 0.00% ✗ -
Jan 12, 2024 Jan 17, 2024 Souza Marcio CEO Neutral 52.5 - 0.00% ✗ -
Jan 12, 2024 Jan 17, 2024 Nemiroff Alex General Counsel and Secretary Neutral 52.5 - 0.00% ✗ -
Jan 12, 2024 Jan 17, 2024 Mastrocola Lauren Principal Accounting Officer Neutral 52.5 - 0.00% ✗ -
Jan 7, 2024 Jan 9, 2024 Kelly Timothy Edwin CFO Sell 47.5 -139 -3.59% ✗ $3.5K
Jan 7, 2024 Jan 9, 2024 Nemiroff Alex General Counsel and Secretary Sell 47.5 -89 -2.70% ✗ $2.2K
Jan 7, 2024 Jan 9, 2024 Souza Marcio CEO Sell 46.3 -418 -2.63% ✗ $10.5K
Jan 7, 2024 Jan 9, 2024 Mastrocola Lauren Principal Accounting Officer Sell 47.5 -35 -1.74% ✗ $881.7
Oct 5, 2023 Oct 10, 2023 DeSimone Jill Director Buy 91.3 +14,500 100.00% ✗ $25.4K
Jun 27, 2023 Jun 27, 2023 Souza Marcio CEO Buy 83.8 +10,000 3.66% ✗ $10.6K
Jun 12, 2023 Jun 14, 2023 DeSimone Jill Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2023 Jun 14, 2023 Chodakewitz Jeffrey Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2023 Jun 14, 2023 YOUNG WILLIAM D Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2023 Jun 14, 2023 Cudkowicz Merit Ester Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2023 Jun 14, 2023 Norden Gregory Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2023 Jun 14, 2023 MITCHELL DEAN J Director Neutral 52.5 - 0.00% ✗ -
May 12, 2023 May 18, 2023 Kelly Timothy Edwin CFO Neutral 90.0 +11,683 25.17% ✗ -
May 12, 2023 May 18, 2023 Nemiroff Alex General Counsel and Secretary Neutral 90.0 +11,686 30.94% ✗ -
May 12, 2023 May 18, 2023 Souza Marcio CEO Neutral 85.0 +11,687 5.16% ✗ -
Mar 24, 2023 Apr 6, 2023 Kelly Timothy Edwin CFO Buy 90.0 +8,000 20.82% ✗ $7K
Mar 23, 2023 Mar 27, 2023 Souza Marcio CEO Buy 95.0 +70,001 36.59% ✗ $60.4K
Mar 24, 2023 Mar 27, 2023 MITCHELL DEAN J Director Buy 91.3 +50,000 200.00% ✗ $41.8K
Mar 24, 2023 Mar 27, 2023 Kelly Timothy Edwin CFO Sell 27.5 -8,000 -14.70% ✗ $7K
Feb 12, 2023 Feb 13, 2023 Sweeny Nicole Chief Commercial Officer Sell 47.5 -1,456 -3.63% ✗ $5.7K
Feb 12, 2023 Feb 13, 2023 Nemiroff Alex General Counsel and Secretary Sell 47.5 -920 -2.38% ✗ $3.6K
Feb 12, 2023 Feb 13, 2023 Mastrocola Lauren Principal Accounting Officer Sell 47.5 -711 -2.30% ✗ $2.8K
Jan 12, 2023 Jan 17, 2023 Kelly Timothy Edwin CFO Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 17, 2023 Sweeny Nicole Chief Commercial Officer Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 17, 2023 Souza Marcio CEO Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 17, 2023 Nemiroff Alex General Counsel and Secretary Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 17, 2023 Mastrocola Lauren Principal Accounting Officer Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 13, 2023 Kelly Timothy Edwin CFO Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 13, 2023 Souza Marcio CEO Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 13, 2023 Sweeny Nicole Chief Commercial Officer Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 13, 2023 Mastrocola Lauren Principal Accounting Officer Neutral 52.5 - 0.00% ✗ -
Jan 12, 2023 Jan 13, 2023 Nemiroff Alex General Counsel and Secretary Neutral 52.5 - 0.00% ✗ -
Jan 7, 2023 Jan 9, 2023 Sweeny Nicole Chief Commercial Officer Sell 47.5 -2,079 -4.93% ✗ $5.2K