John Varian serves as Executive at XOMA Corp, where they oversee executive responsibilities. Since joining the company, John Varian has executed 96 insider transactions totaling $2.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 7, 2026 involved receiving (via award) 50,000 shares valued at $0.
John Varian currently holds 72,900 shares of XOMA Corp (XOMA), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John Varian has been a net seller of XOMA stock. They have purchased $0 and sold $2.6M worth of shares.
John Varian's most recent insider trade was on Jan 7, 2026, when they sold 50,000 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Feb 2, 2023 | SLS | $0 | Award | 2,500 | $N/A | Discretionary |
| Jan 31, 2022 | SLS | $0 | Award | 1,900 | $N/A | Discretionary |
| Dec 20, 2017 | VSAR | $0 | Award | 11,200 | $N/A | Discretionary |
| May 25, 2017 | VSAR | $0 | Award | 3,480 | $N/A | Discretionary |
| May 16, 2017 | XOMA | $246.7K | Sale | 39,540 | $6.24 | Discretionary |
| Dec 21, 2016 | XOMA | $77.9K | Sale | 13,549 | $5.75 | Discretionary |
| Aug 25, 2016 | VSAR | $20.8K | Sale | 1,600 | $12.97 | Discretionary |
| May 18, 2016 | VSAR | $0 | Award | 4,625 | $N/A | Discretionary |
| Mar 22, 2016 | XOMA | $63.2K | Sale | 81,022 | $0.78 | Discretionary |
| Mar 18, 2016 | XOMA | $0 | Option Exercise | 36,907 | $N/A | Discretionary |
| Feb 25, 2016 | XOMA | $0 | Award | 541,600 | $N/A | Discretionary |
| Dec 31, 2015 | XOMA | $12.0K | Other | 8,721 | $1.38 | Discretionary |
| Aug 14, 2015 | XOMA | $0 | Option Exercise | 94,573 | $N/A | Discretionary |
| Aug 14, 2015 | XOMA | $29.7K | Disposition | 35,799 | $0.83 | Discretionary |
| Jul 15, 2015 | XOMA | $44.9K | Sale | 10,000 | $4.49 | Discretionary |
| Jul 15, 2015 | XOMA | $12.4K | Option Exercise | 10,000 | $1.24 | Discretionary |
| Jun 29, 2015 | VSAR | $0 | Award | 4,575 | $N/A | Discretionary |
| Jun 15, 2015 | XOMA | $12.4K | Option Exercise | 10,000 | $1.24 | Discretionary |
| Jun 15, 2015 | XOMA | $36.4K | Sale | 10,000 | $3.64 | Discretionary |
| May 15, 2015 | XOMA | $12.4K | Option Exercise | 10,000 | $1.24 | Discretionary |
| May 15, 2015 | XOMA | $33.4K | Sale | 10,000 | $3.34 | Discretionary |
| Apr 15, 2015 | XOMA | $38.6K | Sale | 10,000 | $3.86 | Discretionary |
| Apr 15, 2015 | XOMA | $12.4K | Option Exercise | 10,000 | $1.24 | Discretionary |
| Mar 18, 2015 | XOMA | $85.9K | Disposition | 21,416 | $4.01 | Discretionary |
| Mar 18, 2015 | XOMA | $94.1K | Disposition | 23,461 | $4.01 | Discretionary |
| Mar 18, 2015 | XOMA | $0 | Option Exercise | 36,907 | $N/A | Discretionary |
| Mar 16, 2015 | XOMA | $12.4K | Option Exercise | 10,000 | $1.24 | Discretionary |
| Mar 16, 2015 | XOMA | $37.2K | Sale | 10,000 | $3.72 | Discretionary |