Arbuckle Stuart A has filed 35 insider transactions across 4 companies since June 2023.
Most recent transaction: a grant/award of 224 shares of Praxis Precision Medicines, Inc. ($PRAX) on February 06, 2026.
Activity breakdown: 0 open-market purchases and 5 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 6, 2026 | Praxis Precision Medicines, Inc. | $PRAX | Arbuckle Stuart A | Director | A | Stock Option (Right to Buy) | 224 | $0.00 | 224.0000 | 25,007,171 | 9999.99% | 0.00% |
| Feb. 6, 2026 | Praxis Precision Medicines, Inc. | $PRAX | Arbuckle Stuart A | Director | A | Common Stock | 478 | $0.00 | 1,166.0000 | 25,007,171 | 69.48% | 0.00% |
| Feb. 6, 2026 | Praxis Precision Medicines, Inc. | $PRAX | Arbuckle Stuart A | Director | A | Common Stock | 688 | $0.00 | 688.0000 | 25,007,171 | 9999.99% | 0.00% |
| Jan. 5, 2026 | ALNYLAM PHARMACEUTICALS, INC. | $ALNY | Arbuckle Stuart A | Director | A | Stock Option (right to buy) | 3279 | $0.00 | 3,279.0000 | 134,684,000 | 9999.99% | 0.00% |
| July 1, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 37243 | $450.23 | 63,508.0000 | 257,899,999 | 36.97% | 0.01% |
| June 24, 2025 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | A | Stock Option (right to buy) | 7037 | $0.00 | 7,037.0000 | 63,059,165 | 9999.99% | 0.01% |
| June 24, 2025 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | A | Restricted Stock Units | 4712 | $0.00 | 4,712.0000 | 63,059,165 | 9999.99% | 0.01% |
| June 18, 2025 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | M | Restricted Stock Units | 4000 | $0.00 | 0.0000 | 63,059,165 | 100.00% | 0.01% |
| June 18, 2025 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | M | Common Stock | 4000 | $0.00 | 7,000.0000 | 63,059,165 | 133.33% | 0.01% |
| May 13, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | A | Common Stock | 37622 | $0.00 | 100,751.0000 | 257,899,999 | 59.60% | 0.01% |
| Feb. 26, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 7071 | $479.61 | 63,075.0000 | 257,899,999 | 10.08% | 0.00% |
| Feb. 24, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 4716 | $483.28 | 70,146.0000 | 257,899,999 | 6.30% | 0.00% |
| Feb. 14, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 2724 | $463.46 | 74,862.0000 | 257,899,999 | 3.51% | 0.00% |
| Feb. 12, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | A | Common Stock | 7903 | $0.00 | 77,586.0000 | 257,899,999 | 11.34% | 0.00% |
| Feb. 10, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 3220 | $467.98 | 69,683.0000 | 257,899,999 | 4.42% | 0.00% |
| Feb. 4, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | A | Common Stock | 8448 | $0.00 | 72,903.0000 | 257,899,999 | 13.11% | 0.00% |
| Feb. 4, 2025 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | A | Common Stock | 14624 | $0.00 | 64,455.0000 | 257,899,999 | 29.35% | 0.01% |
| June 21, 2024 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | M | Common Stock | 3000 | $0.00 | 3,000.0000 | 60,143,558 | 9999.99% | 0.00% |
| June 21, 2024 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | M | Restricted Stock Units | 3000 | $0.00 | 0.0000 | 60,143,558 | 100.00% | 0.00% |
| June 18, 2024 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | A | Restricted Stock Units | 4000 | $0.00 | 4,000.0000 | 60,143,558 | 9999.99% | 0.01% |
| June 18, 2024 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | A | Stock Option (right to buy) | 14000 | $0.00 | 14,000.0000 | 60,143,558 | 9999.99% | 0.02% |
| May 15, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | S | Common Stock | 69 | $430.93 | 49,831.0000 | 260,500,000 | 0.14% | 0.00% |
| Feb. 23, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 4714 | $431.79 | 54,865.0000 | 260,500,000 | 7.91% | 0.00% |
| Feb. 26, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | S | Common Stock | 5034 | $425.70 | 49,831.0000 | 260,500,000 | 9.18% | 0.00% |
| Feb. 21, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | S | Common Stock | 3603 | $421.77 | 59,579.0000 | 260,500,000 | 5.70% | 0.00% |
| Feb. 16, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 4499 | $424.01 | 71,359.0000 | 260,500,000 | 5.93% | 0.00% |
| Feb. 20, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 3373 | $420.58 | 67,986.0000 | 260,500,000 | 4.73% | 0.00% |
| Feb. 20, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | S | Common Stock | 4804 | $420.79 | 63,182.0000 | 260,500,000 | 7.07% | 0.00% |
| Feb. 12, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | S | Common Stock | 4295 | $420.24 | 75,858.0000 | 260,500,000 | 5.36% | 0.00% |
| Feb. 9, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | F | Common Stock | 3177 | $422.74 | 80,153.0000 | 260,500,000 | 3.81% | 0.00% |
| Feb. 6, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | A | Common Stock | 6976 | $0.00 | 63,672.0000 | 260,500,000 | 12.30% | 0.00% |
| Feb. 6, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | A | Common Stock | 11210 | $0.00 | 74,882.0000 | 260,500,000 | 17.61% | 0.00% |
| Feb. 7, 2024 | VERTEX PHARMACEUTICALS INC / MA | $VRTX | Arbuckle Stuart A | EVP, COO | A | Common Stock | 8448 | $0.00 | 83,330.0000 | 260,500,000 | 11.28% | 0.00% |
| June 21, 2023 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | A | Stock Option (right to buy) | 14000 | $0.00 | 14,000.0000 | 56,708,975 | 9999.99% | 0.02% |
| June 21, 2023 | RHYTHM PHARMACEUTICALS, INC. | $RYTM | Arbuckle Stuart A | Director | A | Restricted Stock Units | 3000 | $0.00 | 3,000.0000 | 56,708,975 | 9999.99% | 0.01% |