XNCR's three largest insider shareholders as of May 30, 2026 are Bassil I Dahiyat (President Ceo, 546.32K shares), John R Desjarlais (Sr. Vice President Cso, 263.83K shares), John J Kuch (Sr. Vice President Cfo, 121.07K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Kevin Charles Gorman | - | 18,905 | 0 | 16 Jun, 2025 |
| Todd E Simpson | - | 13,686 | 0 | 16 Jun, 2025 |
| Richard J Ranieri | - | 19,183 | 0 | 16 Jun, 2025 |
| Alan Bruce Montgomery | - | 20,611 | 0 | 16 Jun, 2025 |
| Kurt A Gustafson | - | 20,183 | 0 | 16 Jun, 2025 |
| John J Kuch | Sr. Vice President Cfo | 121,070 | 0 | 12 Mar, 2024 |
| Bassil I Dahiyat | President Ceo | 546,316 | 0 | 09 Mar, 2026 |
| John R Desjarlais | Sr. Vice President Cso | 263,831 | 0 | 09 Mar, 2026 |
| Dagmar Rosa-Bjorkeson | - | 8,490 | 0 | 01 Oct, 2024 |
| Barbara Klencke | - | 19,672 | 0 | 16 Jun, 2025 |
| Ellen Feigal | - | 19,183 | 0 | 16 Jun, 2025 |
| Celia Eckert | Svp, General Counsel | 76,918 | 0 | 09 Mar, 2026 |
| Allen Yang | Sr. Vice President Cmo | 73,364 | 0 | 13 Mar, 2023 |
| Nancy Valente | Evp, Chief Development Officer | 49,169 | 0 | 06 May, 2025 |
| Bart Jan Cornelissen | Sr. Vice President Cfo | 75,898 | 0 | 13 Apr, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 10 Apr, 2026 | Bart Jan Cornelissen | Common Stock | D | 3,499 | $12.29 | 75,898 | D | S |
| 05 Mar, 2026 | John R Desjarlais | Common Stock | D | 4,118 | $11.25 | 266,333 | D | S |
| 05 Mar, 2026 | Bart Jan Cornelissen | Common Stock | D | 2,517 | $11.25 | 79,397 | D | S |
| 05 Mar, 2026 | Bassil I Dahiyat | Common Stock | D | 14,870 | $11.25 | 552,922 | D | S |
| 05 Mar, 2026 | Celia Eckert | Common Stock | D | 3,244 | $11.25 | 78,685 | D | S |
| 06 Mar, 2026 | John R Desjarlais | Common Stock | D | 2,502 | $11.02 | 263,831 | D | S |
| 06 Mar, 2026 | Bassil I Dahiyat | Common Stock | D | 6,606 | $11.02 | 546,316 | D | S |
| 06 Mar, 2026 | Celia Eckert | Common Stock | D | 1,767 | $11.02 | 76,918 | D | S |
| 02 Mar, 2026 | John R Desjarlais | Common Stock | A | 24,907 | $0.00 | 273,114 | D | A |
| 02 Mar, 2026 | Bassil I Dahiyat | Common Stock | A | 97,291 | $0.00 | 574,550 | D | A |
| 02 Mar, 2026 | Celia Eckert | Common Stock | A | 18,680 | $0.00 | 83,421 | D | A |
| 02 Mar, 2026 | Bart Jan Cornelissen | Common Stock | A | 19,458 | $0.00 | 81,914 | D | A |
| 03 Mar, 2026 | John R Desjarlais | Common Stock | D | 2,663 | $11.90 | 270,451 | D | S |
| 03 Mar, 2026 | Celia Eckert | Common Stock | D | 1,492 | $11.90 | 81,929 | D | S |
| 03 Mar, 2026 | Bassil I Dahiyat | Common Stock | D | 6,758 | $11.90 | 567,792 | D | S |
| 02 Mar, 2026 | Bart Jan Cornelissen | Stock Option (Right to Buy) | A | 116,750 | $0.00 | 116,750 | D | A |
| 02 Mar, 2026 | John R Desjarlais | Stock Option (Right to Buy) | A | 149,440 | $0.00 | 149,440 | D | A |
| 02 Mar, 2026 | Bassil I Dahiyat | Stock Option (Right to Buy) | A | 583,748 | $0.00 | 583,748 | D | A |
| 02 Mar, 2026 | Celia Eckert | Stock Option (Right to Buy) | A | 112,080 | $0.00 | 112,080 | D | A |
| 23 Jan, 2026 | John R Desjarlais | Common Stock | A | 5,322 | $12.51 | 248,207 | D | M |