Xencor Inc (XNCR) Insider Ownership

Historic Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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