XNCR (Xencor, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by XNCR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-08 | Raymond Joseph Deshaies | Director | A | — | — |
| 2026-07-08 | KURT A GUSTAFSON | Director | A | — | — |
| 2026-07-08 | KEVIN CHARLES GORMAN | Director | A | — | — |
| 2026-07-08 | Ellen Feigal | Director | A | — | — |
| 2026-07-08 | RICHARD J RANIERI | Director | A | — | — |
| 2026-07-08 | Barbara Klencke | Director | A | — | — |
| 2026-07-08 | Alan Bruce Montgomery | Director | A | — | — |
| 2026-07-08 | TODD E SIMPSON | Director | A | — | — |
| 2026-06-22 | Ellen Feigal | Director | Sell | — | — |
| 2026-06-17 | Alan Bruce Montgomery | Director | Sell | — | — |
| 2026-06-17 | KURT A GUSTAFSON | Director | Sell | — | — |
| 2026-06-17 | RICHARD J RANIERI | Director | Sell | — | — |
| 2026-06-17 | KEVIN CHARLES GORMAN | Director | Sell | — | — |
| 2026-04-13 | Bart Jan Cornelissen | SR. VICE PRESIDENT & CFO | Sell | — | — |
| 2026-03-09 | Bart Jan Cornelissen | SR. VICE PRESIDENT & CFO | Sell | — | — |
| 2026-03-09 | John R Desjarlais | SR. VICE PRESIDENT & CSO | Sell | — | — |
| 2026-03-09 | Celia Eckert | SVP, GENERAL COUNSEL | Sell | — | — |
| 2026-03-09 | Bassil I Dahiyat | PRESIDENT & CEO | Sell | — | — |
| 2026-03-04 | Celia Eckert | SVP, GENERAL COUNSEL | MIXED | — | — |
| 2026-03-04 | John R Desjarlais | SR. VICE PRESIDENT & CSO | MIXED | — | — |
| 2026-03-04 | Bassil I Dahiyat | PRESIDENT & CEO | MIXED | — | — |
| 2026-03-04 | Bart Jan Cornelissen | SR. VICE PRESIDENT & CFO | A | — | — |
| 2026-01-26 | John R Desjarlais | SR. VICE PRESIDENT & CSO | M | — | — |
| 2025-12-23 | Bassil I Dahiyat | PRESIDENT & CEO | MIXED | — | — |
| 2025-12-23 | John R Desjarlais | SR. VICE PRESIDENT & CSO | MIXED | — | — |
| 2025-07-31 | Raymond Joseph Deshaies | Director | A | — | — |
| 2025-06-16 | TODD E SIMPSON | Director | A | — | — |
| 2025-06-16 | KEVIN CHARLES GORMAN | Director | MIXED | — | — |
| 2025-06-16 | Barbara Klencke | Director | A | — | — |
| 2025-06-16 | RICHARD J RANIERI | Director | MIXED | — | — |
| 2025-06-16 | Ellen Feigal | Director | MIXED | — | — |
| 2025-06-16 | Alan Bruce Montgomery | Director | MIXED | — | — |
| 2025-06-16 | KURT A GUSTAFSON | Director | MIXED | — | — |
| 2025-05-06 | Nancy Valente | EVP, Chief Development Officer | Sell | — | — |
| 2025-04-14 | Bart Jan Cornelissen | SR. VICE PRESIDENT & CFO | Sell | — | — |
| 2025-03-13 | TODD E SIMPSON | Director | A | — | — |
| 2025-03-11 | Bassil I Dahiyat | PRESIDENT & CEO | Sell | — | — |
| 2025-03-11 | Nancy Valente | EVP, Chief Development Officer | Sell | — | — |
| 2025-03-11 | Celia Eckert | SVP, GENERAL COUNSEL | Sell | — | — |
| 2025-03-11 | John R Desjarlais | SR. VICE PRESIDENT & CSO | Sell | — | — |
| 2025-03-05 | John R Desjarlais | SR. VICE PRESIDENT & CSO | A | — | — |
| 2025-03-05 | Bart Jan Cornelissen | SR. VICE PRESIDENT & CFO | A | — | — |
| 2025-03-05 | Celia Eckert | SVP, GENERAL COUNSEL | A | — | — |
| 2025-03-05 | Bassil I Dahiyat | PRESIDENT & CEO | A | — | — |
| 2025-02-03 | Bassil I Dahiyat | PRESIDENT & CEO | M | — | — |
| 2025-02-03 | John R Desjarlais | SR. VICE PRESIDENT & CSO | M | — | — |
| 2024-12-04 | Alan Bruce Montgomery | Director | MIXED | — | — |
| 2024-11-25 | Bassil I Dahiyat | PRESIDENT & CEO | MIXED | — | — |
| 2024-11-14 | Bassil I Dahiyat | PRESIDENT & CEO | MIXED | — | — |
| 2024-11-13 | John R Desjarlais | SR. VICE PRESIDENT & CSO | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 10,102,430 | — |
| — | 10%+ Owner | 3,368,184 | — |
| — | 10%+ Owner | 2,000,000 | — |
| — | Director | 1,319,522 | — |
| — | Director | 1,035,407 | — |
| — | Director | 773,452 | — |
| — | 10%+ Owner | 613,505 | — |
| — | PRESIDENT & CEO | 552,922 | — |
| — | SR. VICE PRESIDENT & CSO | 266,333 | — |
| — | SR. VICE PRESIDENT & CFO | 121,070 | — |
| — | SVP, GENERAL COUNSEL | 78,685 | — |
| — | SR. VICE PRESIDENT & CFO | 75,898 | — |
| — | SR. VICE PRESIDENT & CMO | 73,364 | — |
| — | EVP, Chief Development Officer | 49,169 | — |
| — | Director | 48,880 | — |
| — | Director | 29,974 | — |
| — | Director | 25,849 | — |
| — | Director | 25,011 | — |
| — | Director | 24,011 | — |
| — | Director | 23,988 | — |
| — | Director | 22,642 | — |
| — | Director | 21,680 | — |
| — | Director | 10,302 | — |
| — | Director | 8,490 | — |
| — | Chief Medical Officer | 4,952 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the XNCR quote page; the site-wide leaderboard is on the insider transactions hub.