Black Diamond Therapeutics, Inc. (BDTX) Insider Ownership

Historic Insider Ownership Trends

Black Diamond Therapeutics's three largest insider shareholders as of April 17, 2026 are Ali Behbahani (Director, 4.45Mn shares), Venture Capital Vi, L.P. Versant (TenPercentOwner, 3.73Mn shares), Growth N V Biotech (TenPercentOwner, 2.73Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Ali Behbahani - 0 4,448,757 06 Jul, 2023
Venture Capital Vi, L.P. Versant - 3,726,341 0 30 Aug, 2024
Growth N V Biotech - 2,733,547 0 20 Mar, 2025
David M. Epstein - 671,423 0 28 Jun, 2023
Elizabeth Buck Chief Scientific Officer 170,192 0 31 Jan, 2025
Fang Ni - 125,389 0 23 Dec, 2022
Mark A. Velleca President Ceo 121,522 0 31 Jan, 2025
Ali Behbahani - 93,568 0 20 Mar, 2026
Erika Jones - 85,150 0 31 Jan, 2025
Brent Hatzis-Schoch - 83,400 0 31 Jan, 2025
Sergey Yurasov Chief Medical Officer 75,000 0 31 Jan, 2025
Robert Alexander Ingram - 42,854 0 19 Dec, 2022
Wendy L Dixon - 38,054 0 03 Apr, 2024
Prakash Raman - 37,132 0 20 Mar, 2026
Shannon Campbell - 8,865 0 16 Dec, 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
20 Mar, 2026 Prakash Raman Common Stock A 6,105 $2.15 37,132 D A
20 Mar, 2026 Ali Behbahani Common Stock A 6,919 $2.15 93,568 D A
21 Jan, 2026 Elizabeth Buck Stock Option (Right to Buy) A 250,000 $0.00 250,000 D A
21 Jan, 2026 Mark A. Velleca Stock Option (Right to Buy) A 600,000 $0.00 600,000 D A
21 Jan, 2026 Sergey Yurasov Stock Option (Right to Buy) A 250,000 $0.00 250,000 D A
21 Jan, 2026 Erika Jones Stock Option (Right to Buy) A 200,000 $0.00 200,000 D A
21 Jan, 2026 Brent Hatzis-Schoch Stock Option (Right to Buy) A 250,000 $0.00 250,000 D A
12 Dec, 2025 Prakash Raman Common Stock A 4,665 $2.76 31,027 D A
12 Dec, 2025 Ali Behbahani Common Stock A 5,208 $2.76 86,649 D A
19 Sep, 2025 Prakash Raman Common Stock A 3,843 $3.35 26,362 D A
19 Sep, 2025 Ali Behbahani Common Stock A 4,291 $3.35 81,441 D A
20 Jun, 2025 Prakash Raman Common Stock A 5,526 $2.33 22,519 D A
20 Jun, 2025 Ali Behbahani Common Stock A 6,170 $2.33 77,150 D A
12 Jun, 2025 Ali Behbahani Stock Option (Right to Buy) A 30,550 $0.00 30,550 D A
12 Jun, 2025 Kapil Dhingra Stock Option (Right to Buy) A 30,550 $0.00 30,550 D A
12 Jun, 2025 Samarth Kulkarni Stock Option (Right to Buy) A 30,550 $0.00 30,550 D A
12 Jun, 2025 Shannon Campbell Stock Option (Right to Buy) A 30,550 $0.00 30,550 D A
12 Jun, 2025 Prakash Raman Stock Option (Right to Buy) A 30,550 $0.00 30,550 D A
21 Mar, 2025 Ali Behbahani Common Stock A 7,646 $1.88 70,980 D A
21 Mar, 2025 Prakash Raman Common Stock A 6,848 $1.88 16,993 D A