Mason Stephen M Insider Trading Activity
Mason Stephen M has been net-selling over the last 12 months with 0 purchases and 4 sales across 1 company.
CAH is the most-traded position with 4 trades. The largest single transaction was a sale of CAH for $3.0M on Aug 18, 2026.
Performance Scorecard
Forward stock performance after each transaction by Mason Stephen M. 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 | — | -0.9% | 0% | 3 |
| 90 days | — | -38.7% | 0% | 3 |
| 120 days | — | -33.5% | 0% | 3 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersCAH · CARDINAL HEALTH INC
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Upgrade to ProRecent Trades
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Aug 18, 2026 | CAH | Sell | 3,100 | $234.59 | $727K | −5.8% | CEO | |
Aug 18, 2026 | CAH | Sell | 8,195 | $235.62 | $1.9M | −16.4% | CEO | |
Aug 18, 2026 | CAH | Sell | 10,876 | $236.50 | $2.6M | −26.0% | CEO | |
Aug 18, 2026 | CAH | Sell | 12,829 | $237.26 | $3.0M | −41.5% | CEO | |
Aug 19, 2025 | CAH | Sell | 34,411 | $148.83 | $5.1M | −53.2% | CEO | |
Aug 19, 2025 | CAH | Sell | 4,167 | $149.39 | $623K | −13.8% | CEO | |
Aug 19, 2025 | CAH | Sell | 2,997 | $147.87 | $443K | −4.4% | CEO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| CAH | CARDINAL HEALTH INC | 7 | $14.5M |
Other insiders at CARDINAL HEALTH INC
6 other tracked filers at CAH.