According to recent filings covering the 90 days ending December 12, 2025, the three most significant insider holders at Xencor are Sr. Vice President & Cfo Bart Jan Cornelissen (61.35K shares), EVP And Chief Development Officer Nancy Valente (49.17K shares), Director Alan Bruce Montgomery (20.61K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Bassil I Dahiyat | President & CEO | 465,419 | 11 Mar, 2025 |
| John R Desjarlais | Sr. Vice President & Cso | 236,574 | 11 Mar, 2025 |
| John J Kuch | Sr. Vice President & Cfo | 121,070 | 12 Mar, 2024 |
| Allen Yang | Sr. Vice President & Cmo | 73,364 | 13 Mar, 2023 |
| Celia Eckert | SVP And General Counsel | 63,507 | 11 Mar, 2025 |
| Bart Jan Cornelissen | Sr. Vice President & Cfo | 61,348 | 14 Apr, 2025 |
| Nancy Valente | EVP And Chief Development Officer | 49,169 | 06 May, 2025 |
| Alan Bruce Montgomery | 20,611 | 16 Jun, 2025 | |
| Kurt A Gustafson | 20,183 | 16 Jun, 2025 | |
| Barbara Klencke | 19,672 | 16 Jun, 2025 | |
| Richard J Ranieri | 19,183 | 16 Jun, 2025 | |
| Ellen Feigal | 19,183 | 16 Jun, 2025 | |
| Kevin Charles Gorman | 18,905 | 16 Jun, 2025 | |
| Todd E Simpson | 13,686 | 16 Jun, 2025 | |
| Dagmar Rosa-Bjorkeson | 8,490 | 01 Oct, 2024 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 12 Jun, 2025 | Barbara Klencke | Common Stock | A | 13,686 | $0.00 | 19,672 | D | A |
| 12 Jun, 2025 | Kurt A Gustafson | Common Stock | A | 13,686 | $0.00 | 23,176 | D | A |
| 12 Jun, 2025 | Alan Bruce Montgomery | Common Stock | A | 13,686 | $0.00 | 22,826 | D | A |
| 12 Jun, 2025 | Ellen Feigal | Common Stock | A | 13,686 | $0.00 | 22,176 | D | A |
| 12 Jun, 2025 | Richard J Ranieri | Common Stock | A | 13,686 | $0.00 | 22,176 | D | A |
| 12 Jun, 2025 | Todd E Simpson | Common Stock | A | 13,686 | $0.00 | 13,686 | D | A |
| 12 Jun, 2025 | Kevin Charles Gorman | Common Stock | A | 13,686 | $0.00 | 22,078 | D | A |
| 16 Jun, 2025 | Richard J Ranieri | Common Stock | D | 2,993 | $9.22 | 19,183 | D | S |
| 16 Jun, 2025 | Kevin Charles Gorman | Common Stock | D | 3,173 | $9.22 | 18,905 | D | S |
| 16 Jun, 2025 | Ellen Feigal | Common Stock | D | 2,993 | $9.22 | 19,183 | D | S |
| 16 Jun, 2025 | Kurt A Gustafson | Common Stock | D | 2,993 | $9.22 | 20,183 | D | S |
| 16 Jun, 2025 | Alan Bruce Montgomery | Common Stock | D | 2,215 | $9.22 | 20,611 | D | S |
| 02 May, 2025 | Nancy Valente | Common Stock | D | 4,616 | $11.03 | 49,169 | D | S |
| 10 Apr, 2025 | Bart Jan Cornelissen | Common Stock | D | 3,750 | $8.06 | 61,348 | D | S |
| 10 Mar, 2025 | Nancy Valente | Common Stock | D | 2,565 | $13.60 | 53,785 | D | S |
| 10 Mar, 2025 | John R Desjarlais | Common Stock | D | 9,697 | $13.60 | 236,574 | D | S |
| 10 Mar, 2025 | Celia Eckert | Common Stock | D | 5,740 | $13.60 | 63,507 | D | S |
| 10 Mar, 2025 | Bassil I Dahiyat | Common Stock | D | 19,716 | $13.60 | 465,419 | D | S |
| 10 Mar, 2025 | John R Desjarlais | - | - | 236,574 | D | |||
| 04 Mar, 2025 | Celia Eckert | Common Stock | A | 21,949 | $0.00 | 69,247 | D | A |