Watson David O. Insider Trading Activity
Watson David O. has been net-selling over the last 12 months with 0 purchases and 11 sales across 1 company.
APLS is the most-traded position with 11 trades. The largest single transaction was a sale of APLS for $523K on Sep 10, 2025.
Performance Scorecard
Forward stock performance after each transaction by Watson David O.. 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 | — | -3.0% | 55% | 11 |
| 90 days | — | -23.3% | 36% | 11 |
| 120 days | — | -14.6% | 44% | 9 |
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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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| Jan 22, 2026 | APLS | Sell | 7,832 | $21.77 | $170K | General Counsel |
| Jan 20, 2026 | APLS | Sell | 2,475 | $19.79 | $49K | General Counsel |
| Jan 13, 2026 | APLS | Sell | 5,780 | $22.19 | $128K | General Counsel |
| Dec 16, 2025 | APLS | Sell | 5,000 | $24.49 | $122K | General Counsel |
| Nov 17, 2025 | APLS | Sell | 5,000 | $20.06 | $100K | General Counsel |
| Oct 16, 2025 | APLS | Sell | 5,000 | $25.22 | $126K | General Counsel |
| Sep 16, 2025 | APLS | Sell | 5,000 | $24.34 | $122K | General Counsel |
| Sep 10, 2025 | APLS | Sell | 20,000 | $26.17 | $523K | General Counsel |
| Aug 18, 2025 | APLS | Sell | 5,000 | $27.80 | $139K | General Counsel |
| Jul 16, 2025 | APLS | Sell | 5,000 | $19.55 | $98K | General Counsel |
| Jun 16, 2025 | APLS | Sell | 5,000 | $18.77 | $94K | General Counsel |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| APLS | Apellis Pharmaceuticals, Inc. | 11 | $1.7M |
Other insiders at Apellis Pharmaceuticals, Inc.
8 other tracked filers at APLS.
CEO
8
Trades
CFO
6
Trades
VP
5
Trades
Chief Business & Strat Officer
4
Trades
Chief Technical Officer
3
Trades
Chief Medical Officer
3
Trades
Chief Scientific Officer
3
Trades
Director
3
Trades