Which hedge funds own BDTX? BLACK DIAMOND THERAPEUTICS I, Q2 2026 13F holders
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10 of the hedge funds tracked by WhaleCreep disclosed a position in BDTX (BLACK DIAMOND THERAPEUTICS I) in their Q2 2026 13F filings, worth $9.0m in total. The largest holder by portfolio weight is Defilade Capital Management, L.P. at 0.4% of its book. 2 managers opened a new position this quarter: Defilade Capital Management, L.P., Spark Investment Management LLC. 10 exited: 683 Capital Management, LLC, Catalyst Funds Management Pty LTD, Diametric Capital, LP.
Who discovered BDTX first?
Earliest meaningful positions among the 5 tracked managers we observed opening BDTX since Q1 2020.
1 RA Capital Management, L.P. First reported Q1 2020 2.0%initial weight · $64.6m Exitedby Q2 2024 · held 17q -80%stock since Q1 2020
Weight of RA Capital Management, L.P.'s 13F book in BDTX, by quarter
- 2.1% peak weight, Q2 2020
- $109.2m peak reported value
- 17 quarters held
- 13q before the median tracked entry
The stock's split-adjusted price moved -80% between Q1 2020 and Q1 2024, the last quarter this manager reported the position.
19 managers already held BDTX when our coverage of them began
Awm Investment Company, Inc. (Q1 2026), Gsa Capital Partners LLP (Q1 2026), Graham Capital Management, L.P. (Q1 2026), Balyasny Asset Management L.P. (Q1 2026), Marshall Wace, LLP (Q1 2026), Arrowstreet Capital, Limited Partnership (Q1 2026), D. E. Shaw & Co., Inc. (Q1 2026), Two Sigma Investments, LP (Q1 2026), 683 Capital Management, LLC (Q1 2026), Catalyst Funds Management Pty LTD (Q1 2026), Citadel Advisors LLC (Q1 2026), Diametric Capital, LP (Q1 2026), Millennium Management LLC (Q1 2026), Nine Masts Capital LTD (Q1 2026), Oxford Asset Management LLP (Q1 2026), Prelude Capital Management, LLC (Q1 2026), Qube Research & Technologies LTD (Q1 2026), Schonfeld Strategic Advisors LLC (Q1 2026), Squarepoint Ops LLC (Q1 2026).
Their first filing on record already includes BDTX, so when they first bought it is unknown. They are not ranked above.
View discovery timeline
Dots mark the ranked managers' first reported quarters. Price is the quarter-end price implied by 13F filings, split-adjusted, shown from Q1 2026 where the series is continuous. Coverage widened in Q1 2026 from about a hundred managers to over a thousand, so holders and new holders are shown relative to the managers filing each quarter.
How this is calculated
13F filings are quarterly snapshots of long US-listed equity positions. They do not show exact purchase dates, intra-quarter trading, short positions, most derivatives, or a manager's actual performance. "First reported" is the first quarter-end filing that shows the position.
A manager is ranked only if we observed it filing, without BDTX, within two quarters before its first position. Ranking is by the first quarter the position reached 1% of the manager's 13F book in a run of at least 2 filings, then by peak weight. "High conviction" means a peak weight of at least 5%.
Stock changes are the split-adjusted change in the quarter-end price implied by 13F filings, excluding dividends. They describe the stock over the period, not the return any manager earned. Phases are cut where the share of tracked managers holding BDTX passed one third and two thirds of its peak.
Which hedge funds hold BDTX? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Defilade Capital Management, L.P. | Q2 2026 | 0.4% | $3.1m | 1,674,999 | – | new |
| Awm Investment Company, Inc. | Q2 2026 | 0.2% | $1.9m | 1,000,000 | 90% | added |
| Spark Investment Management LLC | Q2 2026 | 0.1% | $28.7k | 15,500 | – | new |
| Gsa Capital Partners LLP | Q2 2026 | 0.0% | $409.0k | 220,907 | 30% | added |
| Graham Capital Management, L.P. | Q2 2026 | 0.0% | $100.3k | 54,232 | -68% | reduced |
| Balyasny Asset Management L.P. | Q2 2026 | 0.0% | $1.0m | 542,172 | 6% | added |
| Marshall Wace, LLP | Q2 2026 | 0.0% | $1.7m | 896,602 | 7% | added |
| Arrowstreet Capital, Limited Partnership | Q2 2026 | 0.0% | $491.3k | 265,562 | -68% | reduced |
| D. E. Shaw & Co., Inc. | Q2 2026 | 0.0% | $291.1k | 157,340 | -57% | reduced |
| Two Sigma Investments, LP | Q2 2026 | 0.0% | $77.7k | 42,000 | -3% | reduced |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| 683 Capital Management, LLC | 0.4% | $528.2k |
| Catalyst Funds Management Pty LTD | 0.0% | $32.4k |
| Diametric Capital, LP | 0.0% | $32.8k |
| Millennium Management LLC | 0.0% | $287.5k |
| Nine Masts Capital LTD | 0.0% | $37.9k |
| Oxford Asset Management LLP | 0.0% | $49.2k |
| Prelude Capital Management, LLC | 0.0% | $29.6k |
| Qube Research & Technologies LTD | 0.0% | $28.6k |
| Schonfeld Strategic Advisors LLC | 0.0% | $40.0k |
| Squarepoint Ops LLC | 0.0% | $32.5k |
Held in a manager's last filing on record
These managers have not filed for the latest quarter; their last disclosure is dated.
| Manager | Last filing | Weight |
|---|---|---|
| renaissance | Q2 2026 | 0.0% |
How has hedge fund ownership of BDTX changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 11 | $12.6m |
| Q1 2026 | 21 | $13.2m |
| Q4 2025 | 2 | $2.8m |
| Q3 2025 | 1 | $2.3m |
| Q2 2025 | 1 | $414.4k |
| Q1 2025 | 1 | $123.8k |
| Q4 2024 | 1 | $1.9m |
| Q3 2024 | 2 | $4.1m |
| Q2 2024 | 1 | $1.2m |
| Q1 2024 | 2 | $19.0m |
| Q4 2023 | 2 | $11.2m |
| Q3 2023 | 4 | $14.3m |
| Q2 2023 | 4 | $29.3m |
| Q1 2023 | 2 | $5.3m |
| Q4 2022 | 2 | $5.1m |
| Q3 2022 | 3 | $4.7m |
Counts every tracked manager that disclosed BDTX in that quarter's filing, including managers that have since stopped filing.