Lauren Mastrocola
CIK: 0001827639
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Praxis Precision Medicines, Inc.
Discretionary Trading P&L
Holdings
Transaction History (21 total)
- May 14, 2026PRAX
Praxis Precision Medicines, Inc.
Award(A)Direct127 shares at avg. $167.94$21K - Jan 12, 2026PRAX
Praxis Precision Medicines, Inc.
Tax Payment(F)Direct344 shares at avg. $275.74$95K - Jan 10, 2026PRAX
Praxis Precision Medicines, Inc.
Tax Payment(F)Direct367 shares at avg. $288.45$106K - Jan 8, 2026PRAX
Praxis Precision Medicines, Inc.
Award(A)Direct3.8K shares- - Jan 7, 2026PRAX
Praxis Precision Medicines, Inc.
Tax Payment(F)Direct35 shares at avg. $292.63$10K - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Exercise(M)Direct207 shares at avg. $44.40$9K - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Exercise(M)Direct2.4K shares at avg. $44.40$104K - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Exercise(M)Direct5.3K shares at avg. $56.94$299K - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Sale(S)Direct11.5K shares at avg. $191.96$2.2M - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Sale(S)Direct2.1K shares at avg. $192.71$413K - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Exercise(M)Direct2.7K shares at avg. $43.37$116K - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Exercise(M)Direct1.6K shares at avg. $133.65$208K - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Exercise(M)Direct508 shares at avg. $83.85$43K - Nov 20, 2025PRAX
Praxis Precision Medicines, Inc.
Exercise(M)Direct1K shares at avg. $49.50$52K - Feb 12, 2025PRAX
Praxis Precision Medicines, Inc.
Tax Payment(F)Direct40 shares at avg. $85.40$3K - Jan 12, 2025PRAX
Praxis Precision Medicines, Inc.
Tax Payment(F)Direct390 shares at avg. $63.15$25K - Jan 10, 2025PRAX
Praxis Precision Medicines, Inc.
Award(A)Direct5K shares- - Jan 7, 2025PRAX
Praxis Precision Medicines, Inc.
Tax Payment(F)Direct35 shares at avg. $77.52$3K - Nov 14, 2024PRAX
Praxis Precision Medicines, Inc.
Award(A)Direct294 shares at avg. $37.40$11K - Nov 14, 2024PRAX
Praxis Precision Medicines, Inc.
Sale(S)Direct5.2K shares at avg. $81.78$424K - Nov 14, 2024PRAX
Praxis Precision Medicines, Inc.
Exercise(M)Direct4.4K shares at avg. $56.94$249K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| May 14, 2026 | PRAX Praxis Precision Medicines, Inc. | Award(A) | 127 | $167.94 | $21,329 | Direct |
| Jan 12, 2026 | PRAX Praxis Precision Medicines, Inc. | Tax Payment(F) | 344 | $275.74 | $94,855 | Direct |
| Jan 10, 2026 | PRAX Praxis Precision Medicines, Inc. | Tax Payment(F) | 367 | $288.45 | $105,861 | Direct |
| Jan 8, 2026 | PRAX Praxis Precision Medicines, Inc. | Award(A) | 3,750 | - | $0 | Direct |
| Jan 7, 2026 | PRAX Praxis Precision Medicines, Inc. | Tax Payment(F) | 35 | $292.63 | $10,242 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Exercise(M) | 207 | $44.40 | $9,191 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Exercise(M) | 2,351 | $44.40 | $104,384 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Exercise(M) | 5,250 | $56.94 | $298,935 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Sale(S) | 11,455 | $191.96 | $2,198,879 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Sale(S) | 2,145 | $192.71 | $413,365 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Exercise(M) | 2,680 | $43.37 | $116,232 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Exercise(M) | 1,557 | $133.65 | $208,093 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Exercise(M) | 508 | $83.85 | $42,596 | Direct |
| Nov 20, 2025 | PRAX Praxis Precision Medicines, Inc. | Exercise(M) | 1,047 | $49.50 | $51,827 | Direct |
| Feb 12, 2025 | PRAX Praxis Precision Medicines, Inc. | Tax Payment(F) | 40 | $85.40 | $3,416 | Direct |
| Jan 12, 2025 | PRAX Praxis Precision Medicines, Inc. | Tax Payment(F) | 390 | $63.15 | $24,629 | Direct |
| Jan 10, 2025 | PRAX Praxis Precision Medicines, Inc. | Award(A) | 5,000 | - | $0 | Direct |
| Jan 7, 2025 | PRAX Praxis Precision Medicines, Inc. | Tax Payment(F) | 35 | $77.52 | $2,713 | Direct |
| Nov 14, 2024 | PRAX Praxis Precision Medicines, Inc. | Award(A) | 294 | $37.40 | $10,996 | Direct |
| Nov 14, 2024 | PRAX Praxis Precision Medicines, Inc. | Sale(S) | 5,188 | $81.78 | $424,318 | Direct |
| Nov 14, 2024 | PRAX Praxis Precision Medicines, Inc. | Exercise(M) | 4,374 | $56.94 | $249,056 | Direct |
1-21 of 21 transactions
About Mastrocola Lauren
Mastrocola Lauren (SEC CIK 0001827639) files insider reports with the SEC as Principal Accounting Officer of Praxis Precision Medicines, Inc. (PRAX).
Signal8 holds 10 ownership filings by Mastrocola Lauren, all Form 4s, filed between Nov 15, 2024 and May 19, 2026. Those filings report 21 transactions, from Nov 14, 2024 to May 14, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Mastrocola Lauren's filings is in BOSTON, MA.
Recent filings by Mastrocola Lauren
- May 14, 2026: Grant or award of PRAX shares (Form 4, code A).
- Jan 12, 2026: Tax withholding of PRAX shares (Form 4, code F).
- Jan 10, 2026: Tax withholding of PRAX shares (Form 4, code F).
- Jan 8, 2026: Grant or award of PRAX shares (Form 4, code A).
- Jan 7, 2026: Tax withholding of PRAX shares (Form 4, code F).
Other insiders filing for Praxis Precision Medicines, Inc. (PRAX)
- Souza Marcio, Chief Executive Officer
- DeSimone Jill, Director
- Arbuckle Stuart A, Director
- Chodakewitz Jeffrey, Director
- YOUNG WILLIAM D, Director
- Cudkowicz Merit Ester, Director