Delong Mark Jeffrey Insider Trading Activity
Delong Mark Jeffrey has been net-selling over the last 12 months with 0 purchases and 4 sales across 1 company.
APLS is the most-traded position with 4 trades. The largest single transaction was a sale of APLS for $73K on Jan 22, 2026.
Performance Scorecard
Forward stock performance after each transaction by Delong Mark Jeffrey. 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 | — | -0.8% | 50% | 4 |
| 90 days | — | -91.0% | 0% | 4 |
| 120 days | — | -84.9% | 0% | 1 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersAPLS · Apellis Pharmaceuticals, Inc.
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Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| APLS | Apellis Pharmaceuticals, Inc. | 4 | $147K |
Other insiders at Apellis Pharmaceuticals, Inc.
8 other tracked filers at APLS.