Form 4: Pieris Pharmaceuticals COO Sells Shares
Insider Transaction (Form 4)
Kathleen Goin, Chief Operating Officer of Pieris Pharmaceuticals, Inc., sold 4,302 shares of common stock on September 16, 2026.
Summary
- Option exercise/conversion: acquired 2,154 Common Stock at $7.14 ($15,380) on September 16, 2026; holds 2,154 after (Direct).
- Option exercise/conversion: acquired 2,148 Common Stock at $9.08 ($19,504) on September 16, 2026; holds 4,302 after (Direct).
- Open-market sale: disposed of 1,659 Common Stock at $151.16 ($250,773) on September 16, 2026; holds 2,643 after (Direct).
- Open-market sale: disposed of 989 Common Stock at $152.36 ($150,686) on September 16, 2026; holds 1,654 after (Direct).
- Open-market sale: disposed of 1,654 Common Stock at $153.24 ($253,465) on September 16, 2026 (Direct).
- Option exercise/conversion: disposed of 2,154 Stock Option (Right to Buy) on September 16, 2026; holds 2,165 after (Direct).
- Option exercise/conversion: disposed of 2,148 Stock Option (Right to Buy) on September 16, 2026; holds 2,148 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $654,923 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Kathleen Goin — Officer (Chief Operating Officer)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-16 | Option exercise/conversion | Common Stock | 2,154 | $7 | $15.4K | 2,154 |
| 2026-09-16 | Option exercise/conversion | Common Stock | 2,148 | $9 | $19.5K | 4,302 |
| 2026-09-16 | Open-market sale | Common Stock | 1,659 | $151 | $250.8K | 2,643 |
| 2026-09-16 | Open-market sale | Common Stock | 989 | $152 | $150.7K | 1,654 |
| 2026-09-16 | Open-market sale | Common Stock | 1,654 | $153 | $253.5K | 0 |
| 2026-09-16 | Option exercise/conversion | Stock Option (Right to Buy) | 2,154 | — | — | 2,165 |
| 2026-09-16 | Option exercise/conversion | Stock Option (Right to Buy) | 2,148 | — | — | 2,148 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-16 | Option exercise/conversion (2,154 shares) |
| 2026-09-16 | Option exercise/conversion (2,148 shares) |
| 2026-09-16 | Open-market sale (1,659 shares) |
| 2026-09-16 | Open-market sale (989 shares) |
| 2026-09-16 | Open-market sale (1,654 shares) |
| 2026-09-16 | Option exercise/conversion (2,154 shares) |
| 2026-09-16 | Option exercise/conversion (2,148 shares) |
Keywords
insider transaction, Form 4, PVLA, PALVELLA THERAPEUTICS, INC., bearish, Kathleen Goin
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