John Oyler
Known title: Chief Executive OfficerCIK: 0001042047
Associated companies
Transaction History
| ONC | ▼ Sell | Open Market | 1,980 | $702K | 8/12/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 2,515 | $896K | 8/12/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 15,396 | $5.5M | 8/12/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 20,899 | $7.5M | 8/12/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 14,102 | $5.1M | 8/12/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 13,695 | $4.9M | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 8,081 | $2.9M | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 14,569 | $5.3M | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 11,568 | $4.2M | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 13,403 | $4.9M | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 5,211 | $1.9M | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 3,176 | $1.2M | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,200 | $440K | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 4 | $1K | 8/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 67 | $23K | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 2,813 | $990K | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 3,673 | $1.3M | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 6,717 | $2.4M | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 3,476 | $1.2M | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 12,418 | $4.4M | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 15,869 | $5.7M | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 45,044 | $16.2M | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 21,254 | $7.6M | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 3,680 | $1.3M | 8/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 15,379 | $4.9M | 7/21/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 20,029 | $6.3M | 7/21/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 7,842 | $2.5M | 7/21/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 15,807 | $5.0M | 7/21/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 2,340 | $749K | 7/21/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 5,146 | $1.6M | 7/20/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 6,273 | $1.9M | 7/20/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 2,907 | $906K | 7/20/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 33,990 | $4.1M | 7/20/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 15,499 | $4.8M | 7/20/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 14,326 | $4.5M | 7/20/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,850 | $581K | 7/20/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,512 | $477K | 7/20/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 523 | $165K | 7/20/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 280 | $89K | 7/20/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 64,628 | $7.8M | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,440 | $439K | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 597 | $183K | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 680 | $210K | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 4,833 | $1.5M | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 35,829 | $11.2M | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 14,915 | $4.7M | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 740 | $233K | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 51 | $16K | 7/17/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 5,543 | $1.7M | 7/17/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 96,501 | $15.5M | 7/16/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 70,096 | $8.4M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 233 | $73K | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 4,881 | $1.5M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 9,516 | $3.0M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 19,752 | $6.2M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 32,224 | $10.2M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 42,798 | $13.6M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 6,402 | $2.0M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 15,097 | $4.8M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 20,505 | $6.6M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 13,109 | $4.2M | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,560 | $503K | 7/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 520 | $168K | 7/16/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 35,605 | $3.6M | 7/15/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 76,677 | $13.0M | 7/15/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 4,275 | $686K | 7/15/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 6,067 | $1.9M | 7/15/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 41,336 | $12.9M | 7/15/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 12,857 | $4.0M | 7/15/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 48,657 | $15.2M | 7/15/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 7,640 | $2.4M | 7/15/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 4,139 | $1.3M | 7/14/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 8,122 | $2.5M | 7/14/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 97,282 | $3.6M | 7/14/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 36,318 | $3.6M | 7/14/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 39,090 | $11.9M | 7/14/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 45,895 | $14.1M | 7/14/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 40,781 | $12.5M | 7/14/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 7,834 | $2.4M | 7/14/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 48,520 | $1.8M | 7/13/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 798 | $241K | 7/13/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 4,584 | $1.4M | 7/13/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 26,294 | $8.0M | 7/13/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 8,438 | $2.6M | 7/13/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 846 | $259K | 7/13/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 7,240 | $2.2M | 7/13/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 320 | $98K | 7/13/2026 | View on chart |
| ONC | ▲ Buy | Option Exercise | 11,698 | $432K | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,493 | $442K | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,314 | $391K | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 3,074 | $917K | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 5,143 | $1.5M | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 370 | $111K | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 150 | $45K | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 136 | $41K | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 18 | $5K | 7/10/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,800 | $492K | 6/23/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,290 | $354K | 6/23/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 320 | $88K | 6/23/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,650 | $437K | 6/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,710 | $455K | 6/16/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 333 | $89K | 6/16/2026 | View on chart |
| ONC | ▲ Buy | Grant | 177,931 | $0 | 6/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 741 | $190K | 6/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 859 | $221K | 6/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 200 | $52K | 6/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 149 | $39K | 6/11/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 3,820 | $1.0M | 6/8/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,120 | $304K | 6/8/2026 | View on chart |
| ONC | ▲ Buy | Grant | 326,976 | $0 | 3/6/2026 | View on chart |
| ONC | ▲ Buy | Grant | 117,936 | $0 | 3/6/2026 | View on chart |
| ONC | ▼ Sell | Open Market | 1,877 | $565K | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 600 | $181K | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 2,567 | $775K | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,512 | $457K | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 7,470 | $2.3M | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,633 | $495K | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 5,442 | $1.7M | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,255 | $382K | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,973 | $601K | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 40 | $12K | 12/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,791 | $540K | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 6,389 | $1.9M | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,896 | $576K | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 5,829 | $1.8M | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 3,940 | $1.2M | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 4,949 | $1.5M | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 5,118 | $1.6M | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 14,163 | $4.4M | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 10,650 | $3.3M | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 16,318 | $5.1M | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 2,344 | $730K | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 121 | $38K | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 929 | $291K | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,194 | $376K | 12/15/2025 | View on chart |
| ONC | ▼ Sell | Gift | 858,533 | $0 | 11/12/2025 | View on chart |
| ONC | ▼ Sell | Gift | 151,320 | $0 | 11/11/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 4,066 | $1.3M | 9/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 6,883 | $2.2M | 9/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 12,446 | $4.1M | 9/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 4,008 | $1.3M | 9/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 400 | $131K | 9/16/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 6,703 | $1.7M | 7/9/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 9,292 | $2.4M | 7/9/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 10,254 | $2.6M | 7/9/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,553 | $396K | 7/9/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 3,074 | $804K | 6/23/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 100 | $26K | 6/23/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,460 | $374K | 6/17/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 3,680 | $979K | 6/16/2025 | View on chart |
| ONC | ▲ Buy | Grant | 185,055 | $0 | 6/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,400 | $351K | 6/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,400 | $353K | 6/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,000 | $253K | 6/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 927 | $236K | 6/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 400 | $102K | 6/6/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 4,055,415 | $2.0M | 5/9/2025 | View on chart |
| ONC | ▼ Sell | Tax Withholding | 1,990,603 | $35.5M | 5/9/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 497,822 | $249K | 3/10/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 41,210 | $268K | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,900 | $454K | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 6,800 | $1.6M | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 2,200 | $530K | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 7,069 | $1.7M | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 9,309 | $2.3M | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 5,313 | $1.3M | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 3,006 | $737K | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 4,913 | $1.2M | 3/10/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 700 | $173K | 3/10/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 708,747 | $354K | 3/7/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 58,590 | $381K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,400 | $344K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 2,100 | $517K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,190 | $294K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 13,918 | $3.4M | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 7,600 | $1.9M | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 8,905 | $2.2M | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 12,578 | $3.1M | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 2,300 | $577K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 3,299 | $832K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,100 | $279K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,300 | $330K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 2,400 | $612K | 3/7/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 500 | $128K | 3/7/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 486,161 | $243K | 3/6/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 40,109 | $261K | 3/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 3,500 | $899K | 3/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 13,598 | $3.5M | 3/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 8,200 | $2.1M | 3/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 6,705 | $1.7M | 3/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 2,906 | $759K | 3/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 3,400 | $891K | 3/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 1,700 | $447K | 3/6/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 100 | $26K | 3/6/2025 | View on chart |
| ONC | ▲ Buy | Grant | 201,084 | $0 | 3/5/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 1,220,531 | $610K | 3/3/2025 | View on chart |
| ONC | ▲ Buy | Option Exercise | 101,000 | $657K | 3/3/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 5,956 | $1.4M | 3/3/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 13,816 | $3.3M | 3/3/2025 | View on chart |
| ONC | ▼ Sell | Open Market | 8,192 | $2.0M | 3/3/2025 | View on chart |