블랙 다이아몬드 테라퓨틱스(Black Diamond Therapeutics)
US ˙ NasdaqGS ˙ US09203E1055

SecurityBDTX / Black Diamond Therapeutics, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership1,643,747 shares
Latest Disclosed Value $ 3,501,181
Renaissance Technologies Llc reports 73.07% increase in ownership of BDTX / Black Diamond Therapeutics, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 1,643,747 shares of Black Diamond Therapeutics, Inc. (US:BDTX) valued at $3,501,181 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 949,735 shares of Black Diamond Therapeutics, Inc.. This represents a change in shares of 73.07% during the quarter. The current value of the position is $3,238,182 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 1,643,747 694,012 73.07 3,501 51.76 0.0055
2026-02-12 2025-12-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 949,735 350,335 58.45 2,308 1.59 0.0036
2025-11-13 2025-09-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 599,400 432,300 258.71 2,272 448.55 0.0030
2025-08-13 2025-06-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 167,100 87,200 109.14 414 236.59 0.0006
2025-05-14 2025-03-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 79,900 -824,100 -91.16 124 -93.64 0.0002
2025-02-13 2024-12-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 904,000 650,200 256.19 1,935 75.18 0.0029
2024-11-13 2024-09-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 253,800 -10,100 -3.83 1,104 -10.17 0.0017
2024-08-09 2024-06-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 263,900 51,300 24.13 1,230 122,800.00 0.0021
2024-05-13 2024-03-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 212,600 -237,800 -52.80 1 0.00 0.0017
2024-02-13 2023-12-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 450,400 121,500 36.94 1 0.0020
2023-11-14 2023-09-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 328,900 108,200 49.03 1 -100.00 0.0016
2023-08-11 2023-06-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 220,700 3,200 1.47 1 0.0016
2023-05-12 2023-03-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 217,500 -3,113 -1.41 0 0.0005
2023-02-13 2022-12-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 220,613 2,913 1.34 0 -100.00 0.0005
2022-11-14 2022-09-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 217,700 -54,302 -19.96 368 -44.99 0.0005
2022-08-12 2022-06-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 272,002 7,511 2.84 669 -8.73 0.0008
2022-05-13 2022-03-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 264,491 -120,909 -31.37 733 -64.31 0.0009
2022-02-11 2021-12-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 385,400 385,400 2,054 0.0026
2021-08-13 2021-06-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 0 -18,600 -100.00 0 -100.00
2021-05-13 2021-03-31 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 18,600 18,600 451 0.0006
2020-11-13 2020-09-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 0 -26,507 -100.00 0 -100.00
2020-08-13 2020-06-30 13F BLACK DIAMOND THERAPEUTICS I COM 09203E105 26,507 26,507 1,118 0.0010
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.