Lauren Mastrocola, Principal Accounting Officer at Praxis Precision Medicines ($PRAX), sold about $2.6 million in company shares through two open market transactions over the past year. Her most recent sale occurred on November 20, 2025. These sales rank her 2,967th among 11,678 insiders in our database by total value sold, below the average of $8.6 million across about 6.4 transactions per insider. She made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 12, 2026 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 344 | $275.74 | 13,445.6560 | 25,007,171 | 2.49% | 0.00% |
| Jan. 8, 2026 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Stock Option (Right to Buy) | 7500 | $0.00 | 7,500.0000 | 25,007,171 | 9999.99% | 0.03% |
| Jan. 10, 2026 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 367 | $288.45 | 13,789.6560 | 25,007,171 | 2.59% | 0.00% |
| Jan. 8, 2026 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Common Stock | 3750 | $0.00 | 14,156.6560 | 25,007,171 | 36.03% | 0.01% |
| Jan. 7, 2026 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 35 | $292.63 | 10,406.6560 | 25,007,171 | 0.34% | 0.00% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Common Stock | 2351 | $44.40 | 18,791.6560 | 25,007,171 | 14.30% | 0.01% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Common Stock | 1047 | $49.50 | 11,488.6560 | 25,007,171 | 10.03% | 0.00% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Common Stock | 508 | $83.85 | 11,996.6560 | 25,007,171 | 4.42% | 0.00% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Common Stock | 1557 | $133.65 | 13,553.6560 | 25,007,171 | 12.98% | 0.01% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Common Stock | 2680 | $43.37 | 16,233.6560 | 25,007,171 | 19.77% | 0.01% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Common Stock | 207 | $44.40 | 16,440.6560 | 25,007,171 | 1.28% | 0.00% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Common Stock | 5250 | $56.94 | 24,041.6560 | 25,007,171 | 27.94% | 0.02% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | S | Common Stock | 11455 | $191.96 | 12,586.6560 | 25,007,171 | 47.65% | 0.05% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | S | Common Stock | 2145 | $192.71 | 10,441.6560 | 25,007,171 | 17.04% | 0.01% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Stock Option (Right to Buy) | 1047 | $0.00 | 0.0000 | 25,007,171 | 100.00% | 0.00% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Stock Option (Right to Buy) | 508 | $0.00 | 0.0000 | 25,007,171 | 100.00% | 0.00% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Stock Option (Right to Buy) | 1557 | $0.00 | 0.0000 | 25,007,171 | 100.00% | 0.01% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Stock Option (Right to Buy) | 2680 | $0.00 | 9,320.0000 | 25,007,171 | 22.33% | 0.01% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Stock Option (Right to Buy) | 207 | $0.00 | 0.0000 | 25,007,171 | 100.00% | 0.00% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Stock Option (Right to Buy) | 2351 | $0.00 | 981.0000 | 25,007,171 | 70.56% | 0.01% |
| Nov. 20, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Stock Option (Right to Buy) | 5250 | $0.00 | 11,376.0000 | 25,007,171 | 31.58% | 0.02% |
| Feb. 12, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 40 | $85.40 | 10,441.6560 | 0 | 0.38% | 0.00% |
| Jan. 12, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 390 | $63.15 | 10,481.6560 | 0 | 3.59% | 0.00% |
| Jan. 10, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Common Stock | 5000 | $0.00 | 10,871.6560 | 0 | 85.15% | 0.00% |
| Jan. 10, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Stock Option (Right to Buy) | 10000 | $0.00 | 10,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 7, 2025 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 35 | $77.52 | 5,871.6560 | 0 | 0.59% | 0.00% |
| Nov. 14, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Common Stock | 294 | $37.40 | 5,906.6560 | 0 | 5.24% | 0.00% |
| Nov. 14, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Stock Option (Right to Buy) | 4374 | $0.00 | 16,626.0000 | 0 | 20.83% | 0.00% |
| Nov. 14, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | S | Common Stock | 5188 | $81.78 | 5,612.6560 | 0 | 48.04% | 0.00% |
| Nov. 14, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | M | Common Stock | 4374 | $56.94 | 10,801.0000 | 0 | 68.06% | 0.00% |
| July 29, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Common Stock | 4500 | $0.00 | 6,427.0000 | 0 | 233.52% | 0.00% |
| July 29, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Stock Option (Right to Buy) | 21000 | $0.00 | 21,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 12, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 48 | $44.65 | 1,927.0000 | 0 | 2.43% | 0.00% |
| Jan. 12, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Stock Option (Right to Buy) | 12000 | $0.00 | 12,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 7, 2024 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 35 | $25.19 | 1,975.0000 | 0 | 1.74% | 0.00% |
| Feb. 12, 2023 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 711 | $3.94 | 30,160.0000 | 0 | 2.30% | 0.00% |
| Jan. 12, 2023 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Stock Option (Right to Buy) | 50000 | $0.00 | 50,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 12, 2023 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | A | Stock Option (Right to Buy) | 3110 | $0.00 | 3,110.0000 | 0 | 9999.99% | 0.00% |
| Jan. 7, 2023 | Praxis Precision Medicines, Inc. | $PRAX | Mastrocola Lauren | Principal Accounting Officer | F | Common Stock | 520 | $2.52 | 30,871.0000 | 0 | 1.66% | 0.00% |