Waddill William D. Insider Trading Activity
Waddill William D. has been net-selling over the last 12 months with 0 purchases and 8 sales across 2 different companies.
PTGX is the most-traded position with 5 trades. The largest single transaction was a sale of PTGX for $1.7M on Feb 6, 2026.
Performance Scorecard
Forward stock performance after each transaction by Waddill William D.. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -6.0% | 50% | 8 |
| 90 days | — | -8.2% | 50% | 8 |
| 120 days | — | -14.5% | 14% | 7 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| Feb 6, 2026 | PTGX | Sell | 20,000 | $83.68 | $1.7M | Director |
| Dec 19, 2025 | ARWR | Sell | 2,416 | $66.66 | $161K | Director |
| Dec 19, 2025 | ARWR | Sell | 5,451 | $68.01 | $371K | Director |
| Dec 19, 2025 | ARWR | Sell | 500 | $68.53 | $34K | Director |
| Oct 10, 2025 | PTGX | Sell | 4,000 | $69.25 | $277K | Director |
| Oct 10, 2025 | PTGX | Sell | 8,000 | $87.81 | $702K | Director |
| Sep 22, 2025 | PTGX | Sell | 4,000 | $64.25 | $257K | Director |
| Aug 27, 2025 | PTGX | Sell | 4,000 | $59.25 | $237K | Director |
Top Companies Traded
Other insiders at Protagonist Therapeutics, Inc
4 other tracked filers at PTGX.