Barbara Klencke

Companies

• ALX ONCOLOGY HOLDINGS INCChief Medical Officer Mar 5, 2026 to now¹
• ALX ONCOLOGY HOLDINGS INCBoard member Jan 23, 2025 to now²
• Xencor IncBoard member Sep 19, 2023 to now³
• TScan Therapeutics, Inc.Board member Apr 10, 2023 to now⁴
• eFFECTOR Therapeutics, Inc.Board member Nov 2, 2021 to Jun 13, 2024⁵
• Sierra Oncology, Inc.Chief Development Officer Jul 15, 2015 to Jul 1, 2022⁶

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• XXencor Inc XNCR29,974 shares⁷$720.9K at $24.05Jun 16, 2026
• AOALX ONCOLOGY HOLDINGS INC ALXO120,000 shares⁸$114.4K at $0.95Mar 5, 2026
• TTTScan Therapeutics, Inc. TCRX70,000 shares⁹$16.4K at $0.23Sep 24, 2024
• SOSierra Oncology, Inc.0 shares¹⁰Jul 1, 2022

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 16, 2026Granted 10,302 shares of Xencor Inc⁷
• Jun 12, 2025Granted 13,686 shares of Xencor Inc¹¹
• Sep 23, 2024Bought 5,000 shares at $5.29 of TScan Therapeutics, Inc.⁹
• Aug 26, 2024Bought 5,000 shares at $5.53 of TScan Therapeutics, Inc.¹²
• Aug 23, 2024Bought 5,000 shares at $5.69 of TScan Therapeutics, Inc.¹²
• Jun 13, 2024Granted 5,986 shares of Xencor Inc¹³
• Dec 14, 2023Bought 5,000 shares at $5.08 of TScan Therapeutics, Inc.¹⁴
• Jul 1, 2022Returned to company 5,000 shares at $55.00 of Sierra Oncology, Inc.¹⁰
• Jul 1, 2022Returned to company 10,000 shares at $55.00 of Sierra Oncology, Inc.¹⁰