Birchler Brian Insider Trading Activity
Birchler Brian has been net-selling over the last 12 months with 0 purchases and 6 sales across 1 company.
IONS is the most-traded position with 6 trades. The largest single transaction was a sale of IONS for $897K on Oct 15, 2025.
Performance Scorecard
Forward stock performance after each transaction by Birchler Brian. 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 | — | -1.1% | 67% | 6 |
| 90 days | — | -5.0% | 20% | 5 |
| 120 days | — | -3.0% | 60% | 5 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersIONS · IONIS PHARMACEUTICALS INC
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Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| IONS | IONIS PHARMACEUTICALS INC | 6 | $3.6M |
Other insiders at IONIS PHARMACEUTICALS INC
10 other tracked filers at IONS.