Form 4 for PTCT PTC THERAPEUTICS, INC.
Accepted 2025-10-07 00:00:00 ET · period of report 2025-10-03 · accession 0001578852-25-000005 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2025-10-07 | 2025-10-03+ | PTCT | Boulding Mark Elliott | EVP AND CLO | M - OptEx | $39.42 | +24.9K | 122.0K | +26% | +$982.4K |
| DM | 2025-10-07 | 2025-10-03+ | PTCT | Boulding Mark Elliott | EVP AND CLO | S - Sale+OE | $65.75 | -24.9K | 103.9K | -19% | -$1.64M |
| DM | 2025-10-07 | 2025-10-03+ | PTCT | Boulding Mark Elliott | EVP AND CLO | M - OptEx | $0.00 | -24.9K | 18.1K | -58% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-10-03 | M | A | 2,266 | $39.42 | 106,167 | D | — | — | |
| 2 | Common | Common Stock | 2025-10-03 | S | D | 536 | $64.43 | 105,631 | D | — | — | (F6) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $64.00 to $64.95 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 3 | Common | Common Stock | 2025-10-03 | S | D | 824 | $65.73 | 104,807 | D | — | — | (F7) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $65.26 to $66.04 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 4 | Common | Common Stock | 2025-10-03 | S | D | 906 | $66.63 | 103,901 | D | — | — | (F8) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $66.42 to $67.08 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 5 | Common | Common Stock | 2025-10-03 | M | A | 2,265 | $39.42 | 106,166 | D | — | — | |
| 6 | Common | Common Stock | 2025-10-03 | S | D | 550 | $64.44 | 105,616 | D | — | — | (F9) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $64.00 to $64.95 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 7 | Common | Common Stock | 2025-10-03 | S | D | 838 | $65.72 | 104,778 | D | — | — | (F10) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $65.26 to $66.08 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 8 | Common | Common Stock | 2025-10-03 | S | D | 877 | $66.67 | 103,901 | D | — | — | (F11) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $66.42 to $67.07 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 9 | Common | Common Stock | 2025-10-06 | M | A | 2,266 | $39.42 | 106,167 | D | — | — | |
| 10 | Common | Common Stock | 2025-10-06 | S | D | 2,266 | $65.07 | 103,901 | D | — | — | (F12) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $64.72 to $65.38 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 11 | Common | Common Stock | 2025-10-03 | M | A | 18,124 | $39.42 | 122,025 | D | — | — | |
| 12 | Common | Common Stock | 2025-10-03 | S | D | 3,100 | $64.43 | 118,925 | D | — | — | (F2) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $64.00 to $64.95 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 13 | Common | Common Stock | 2025-10-03 | S | D | 6,124 | $65.47 | 112,801 | D | — | — | (F3) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $65.00 to $65.99 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 14 | Common | Common Stock | 2025-10-03 | S | D | 7,400 | $66.44 | 105,401 | D | — | — | (F4) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $66.00 to $66.99 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 15 | Common | Common Stock | 2025-10-03 | S | D | 1,500 | $67.15 | 103,901 | D | — | — | (F5) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $67.00 to $67.29 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. |
| 16 | Derivative | Stock Option (Right to Buy) | 2025-10-06 | M | D | 2,266 | $0.00 | 11,329 | D | $39.42 · — to 2033-01-04 | 2,266 Common Stock | (F13) This option was granted on January 5, 2023, and vests over four years, with 25% of the shares underlying the option vesting on January 5, 2024, and an additional 6.25% of the original number of shares underlying the option vesting at the end of each successive three-month period thereafter, beginning on April 5, 2024. |
| 17 | Derivative | Stock Option (Right to Buy) | 2025-10-03 | M | D | 2,265 | $0.00 | 13,595 | D | $39.42 · — to 2033-01-04 | 2,265 Common Stock | (F13) This option was granted on January 5, 2023, and vests over four years, with 25% of the shares underlying the option vesting on January 5, 2024, and an additional 6.25% of the original number of shares underlying the option vesting at the end of each successive three-month period thereafter, beginning on April 5, 2024. |
| 18 | Derivative | Stock Option (Right to Buy) | 2025-10-03 | M | D | 2,266 | $0.00 | 15,860 | D | $39.42 · — to 2033-01-04 | 2,266 Common Stock | (F13) This option was granted on January 5, 2023, and vests over four years, with 25% of the shares underlying the option vesting on January 5, 2024, and an additional 6.25% of the original number of shares underlying the option vesting at the end of each successive three-month period thereafter, beginning on April 5, 2024. |
| 19 | Derivative | Stock Option (Right to Buy) | 2025-10-03 | M | D | 18,124 | $0.00 | 18,126 | D | $39.42 · — to 2033-01-04 | 18,124 Common Stock | (F13) This option was granted on January 5, 2023, and vests over four years, with 25% of the shares underlying the option vesting on January 5, 2024, and an additional 6.25% of the original number of shares underlying the option vesting at the end of each successive three-month period thereafter, beginning on April 5, 2024. |