Form 4: Ptc Therapeutics Executive Sells Shares
Insider Transaction (Form 4)
Mark Elliott Boulding, EXEC. VP AND CLO of Ptc Therapeutics, Inc., sold 192 shares of common stock on October 9, 2026 for $64.26 per share.
Summary
- Option exercise/conversion: acquired 192 Common Stock at $39.42 ($7,569) on October 9, 2026; holds 105,464 after (Direct).
- Open-market sale: disposed of 192 Common Stock at $64.26 ($12,338) on October 9, 2026; holds 105,272 after (Direct).
- Option exercise/conversion: disposed of 192 Stock Option (Right to Buy) on October 9, 2026; holds 2,267 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $12,338 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Mark Elliott Boulding — Officer (EXEC. VP AND CLO)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-10-09 | Option exercise/conversion | Common Stock | 192 | $39 | $7.6K | 105,464 |
| 2026-10-09 | Open-market sale | Common Stock | 192 | $64 | $12.3K | 105,272 |
| 2026-10-09 | Option exercise/conversion | Stock Option (Right to Buy) | 192 | — | — | 2,267 |
Key Dates
| Date | Description |
|---|---|
| 2026-10-09 | Option exercise/conversion (192 shares) |
| 2026-10-09 | Open-market sale (192 shares) |
| 2026-10-09 | Option exercise/conversion (192 shares) |
Keywords
insider transaction, Form 4, PTCT, PTC THERAPEUTICS, INC., bearish, Mark Elliott Boulding
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