John Oyler Insider Trading Activity
John Oyler has been net-selling over the last 12 months with 0 purchases and 41 sales across 1 company.
ONC is the most-traded position with 41 trades. The largest single transaction was a sale of ONC for $11.2M on Jul 17, 2026.
Performance Scorecard
Forward stock performance after each transaction by John Oyler. 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 | — | -9.5% | 20% | 44 |
| 90 days | — | -5.0% | 71% | 41 |
| 120 days | — | -11.0% | 12% | 41 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersONC · BeOne Medicines Ltd.
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Showing the 50 most recent of 53 disclosed trades.
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Jul 17, 2026 | ONC | Sell | 597 | $306.96 | $183K | −0.9% | CEO | |
Jul 17, 2026 | ONC | Sell | 1,440 | $305.20 | $439K | −2.2% | CEO | |
Jul 17, 2026 | ONC | Sell | 51 | $315.06 | $16K | −100.0% | CEO | |
Jul 17, 2026 | ONC | Sell | 740 | $314.32 | $233K | −93.6% | CEO | |
Jul 17, 2026 | ONC | Sell | 14,915 | $313.19 | $4.7M | −95.0% | CEO | |
Jul 17, 2026 | ONC | Sell | 35,829 | $312.17 | $11.2M | −69.5% | CEO | |
Jul 17, 2026 | ONC | Sell | 5,543 | $311.42 | $1.7M | −9.7% | CEO | |
Jul 17, 2026 | ONC | Sell | 4,833 | $310.37 | $1.5M | −7.8% | CEO | |
Jul 17, 2026 | ONC | Sell | 680 | $309.05 | $210K | −1.1% | CEO | |
Jun 23, 2026 | ONC | Sell | 320 | $275.10 | $88K | −100.0% | CEO | |
Jun 23, 2026 | ONC | Sell | 1,800 | $273.30 | $492K | −52.8% | CEO | |
Jun 23, 2026 | ONC | Sell | 1,290 | $274.12 | $354K | −80.1% | CEO | |
Dec 16, 2025 | ONC | Sell | 1,255 | $304.13 | $382K | −38.4% | CEO | |
Dec 16, 2025 | ONC | Sell | 40 | $305.24 | $12K | −100.0% | CEO | |
Dec 16, 2025 | ONC | Sell | 1,877 | $300.80 | $565K | −7.7% | CEO | |
Dec 16, 2025 | ONC | Sell | 600 | $300.98 | $181K | −2.7% | CEO | |
Dec 16, 2025 | ONC | Sell | 2,567 | $301.79 | $775K | −11.7% | CEO | |
Dec 16, 2025 | ONC | Sell | 1,512 | $302.31 | $457K | −7.8% | CEO | |
Dec 16, 2025 | ONC | Sell | 7,470 | $302.74 | $2.3M | −41.9% | CEO | |
Dec 16, 2025 | ONC | Sell | 1,633 | $303.13 | $495K | −15.8% | CEO | |
Dec 16, 2025 | ONC | Sell | 5,442 | $303.72 | $1.7M | −62.5% | CEO | |
Dec 16, 2025 | ONC | Sell | 1,973 | $304.36 | $601K | −98.0% | CEO | |
Dec 15, 2025 | ONC | Sell | 929 | $313.52 | $291K | −3.5% | CEO | |
Dec 15, 2025 | ONC | Sell | 6,389 | $302.29 | $1.9M | −6.5% | CEO | |
Dec 15, 2025 | ONC | Sell | 1,896 | $303.60 | $576K | −2.1% | CEO | |
Dec 15, 2025 | ONC | Sell | 5,829 | $304.37 | $1.8M | −6.5% | CEO | |
Dec 15, 2025 | ONC | Sell | 3,940 | $305.55 | $1.2M | −4.7% | CEO | |
Dec 15, 2025 | ONC | Sell | 4,949 | $306.39 | $1.5M | −6.2% | CEO | |
Dec 15, 2025 | ONC | Sell | 5,118 | $307.38 | $1.6M | −6.8% | CEO | |
Dec 15, 2025 | ONC | Sell | 14,163 | $308.41 | $4.4M | −20.2% | CEO | |
Dec 15, 2025 | ONC | Sell | 10,650 | $309.37 | $3.3M | −19.0% | CEO | |
Dec 15, 2025 | ONC | Sell | 16,318 | $310.48 | $5.1M | −36.0% | CEO | |
Dec 15, 2025 | ONC | Sell | 2,344 | $311.33 | $730K | −8.1% | CEO | |
Dec 15, 2025 | ONC | Sell | 121 | $311.93 | $38K | −0.5% | CEO | |
Dec 15, 2025 | ONC | Sell | 1,791 | $301.58 | $540K | −1.8% | CEO | |
Dec 15, 2025 | ONC | Sell | 1,194 | $314.92 | $376K | −4.7% | CEO | |
Sep 16, 2025 | ONC | Sell | 400 | $327.78 | $131K | −100.0% | CEO | |
Sep 16, 2025 | ONC | Sell | 4,066 | $324.12 | $1.3M | −14.6% | CEO | |
Sep 16, 2025 | ONC | Sell | 6,883 | $325.06 | $2.2M | −29.0% | CEO | |
Sep 16, 2025 | ONC | Sell | 12,446 | $326.14 | $4.1M | −73.8% | CEO | |
Sep 16, 2025 | ONC | Sell | 4,008 | $326.90 | $1.3M | −90.9% | CEO | |
Jul 9, 2025 | ONC | Sell | 1,553 | $254.83 | $396K | −100.0% | CEO | |
Jul 9, 2025 | ONC | Sell | 10,254 | $254.10 | $2.6M | −86.8% | CEO | |
Jul 9, 2025 | ONC | Sell | 9,292 | $253.18 | $2.4M | −44.0% | CEO | |
Jul 9, 2025 | ONC | Sell | 6,703 | $252.23 | $1.7M | −24.1% | CEO | |
Jun 23, 2025 | ONC | Sell | 100 | $262.90 | $26K | −100.0% | CEO | |
Jun 23, 2025 | ONC | Sell | 3,074 | $261.57 | $804K | −96.8% | CEO | |
Jun 17, 2025 | ONC | Sell | 1,460 | $256.49 | $374K | −100.0% | CEO | |
Jun 16, 2025 | ONC | Sell | 3,680 | $266.05 | $979K | −71.6% | CEO | |
Jun 6, 2025 | ONC | Sell | 400 | $255.74 | $102K | −100.0% | CEO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| ONC | BeOne Medicines Ltd. | 53 | $71.0M |
Other insiders at BeOne Medicines Ltd.
5 other tracked filers at ONC.