Form 4: Ptc Therapeutics Director Sells Shares
Insider Transaction (Form 4)
Mary L. Smith, a Director of Ptc Therapeutics, Inc., sold 15,834 shares of common stock on July 9, 2026 for $90.00 per share.
Summary
- Option exercise/conversion: acquired 10,000 Common Stock at $42.95 ($429,500) on July 9, 2026; holds 31,813 after (Direct).
- Open-market sale: disposed of 10,000 Common Stock at $90.00 ($900,000) on July 9, 2026; holds 21,813 after (Direct).
- Option exercise/conversion: acquired 5,834 Common Stock at $42.95 ($250,570) on July 9, 2026; holds 27,647 after (Direct).
- Open-market sale: disposed of 5,834 Common Stock at $90.00 ($525,060) on July 9, 2026; holds 21,813 after (Direct).
- Option exercise/conversion: disposed of 10,000 Stock Option (Right to Buy) on July 9, 2026 (Direct).
- Option exercise/conversion: disposed of 5,834 Stock Option (Right to Buy) on July 9, 2026 (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $1,425,060 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Mary L. Smith — Director
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-07-09 | Option exercise/conversion | Common Stock | 10,000 | $43 | $429.5K | 31,813 |
| 2026-07-09 | Open-market sale | Common Stock | 10,000 | $90 | $900.0K | 21,813 |
| 2026-07-09 | Option exercise/conversion | Common Stock | 5,834 | $43 | $250.6K | 27,647 |
| 2026-07-09 | Open-market sale | Common Stock | 5,834 | $90 | $525.1K | 21,813 |
| 2026-07-09 | Option exercise/conversion | Stock Option (Right to Buy) | 10,000 | — | — | 0 |
| 2026-07-09 | Option exercise/conversion | Stock Option (Right to Buy) | 5,834 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-07-09 | Option exercise/conversion (10,000 shares) |
| 2026-07-09 | Open-market sale (10,000 shares) |
| 2026-07-09 | Option exercise/conversion (5,834 shares) |
| 2026-07-09 | Open-market sale (5,834 shares) |
| 2026-07-09 | Option exercise/conversion (10,000 shares) |
| 2026-07-09 | Option exercise/conversion (5,834 shares) |
Keywords
insider transaction, Form 4, PTCT, PTC THERAPEUTICS, INC., bearish, Mary L. Smith
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