$BDTX

$1.75 +$0.06 (3.55%) Close

$BDTX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 57.5M shares outstanding

Who owns BDTX?

By type of holder

Institutions 60.9% Insiders 21.5% Everyone else 17.6%

Concentration Top 10 holders own 55.9%

T. Rowe Price Investment Management, Inc. 7.0% · Behbahani Ali 15.7%

Institutional ownership

60.9%

-6.1 pts vs last qtr

Institutional holders

-9 vs last qtr

Net shares bought

−3.5M

by institutions in Q2 2026

New / sold out

25 / 34

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +2.8M
Defilade Capital Management, L.P. NEW +1.7M

Biggest sellers in Q2 2026

T. Rowe Price Investment Management, Inc. −6.5M
Mackenzie Financial Corp SOLD OUT −844.8K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Black Diamond Therapeutics Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2020–FY2025

+74.9%

+11.83% a year

Each share's claim on the business

−42.8%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $60.9M

over 6 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years40% 3–5 years13% 1–3 years25% Under 1 year22%

Quarterly turnover

28.6%

of institutional shares changed hands

Top 10 managers, median time held

4.5 years

Super Investors

Investment managers reporting BDTX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
TR T. Rowe Price Investment Management, Inc.	4.0M	7.01%	−6.5M (−61.9%)	2023	0.0%
Shares held by quarter Peak holding12.9M (Q4'25) Change over 8 quarters−6.7M Share of the company7.010% T. Rowe Price Investment Management, Inc.'s full portfolio →
NM NEA Management Company, LLC	4.4M	7.74%	Unchanged	≤2021	0.5%
Shares held by quarter Peak holding4.4M (Q3'24) Change over 8 quarters0 Share of the company7.740% NEA Management Company, LLC's full portfolio →

T. Rowe Price Investment Management, Inc.

4.0M

% of company

7.01%

Change vs last qtr

−6.5M (−61.9%)

Held since

2023

NEA Management Company, LLC

4.4M

% of company

7.74%

Change vs last qtr

Unchanged

Held since

≤2021

28 more super investors behind a free account

See every manager holding Black Diamond Therapeutics Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting BDTX on Form N-PORT; together they hold 27.8% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
TR T. Rowe Price Small-Cap Stock Fund, Inc. T. Rowe Price Small-Cap Stock Fund, Inc.	$5.64M	2.6M	4.61%	0.07%	March 31, 2026
TR T. Rowe Price Small-Cap Value Fund, Inc. T. Rowe Price Small-Cap Value Fund, Inc.	$3.92M	2.1M	3.69%	0.04%	June 30, 2026

T. Rowe Price Small-Cap Stock Fund, Inc.

Position value

$5.64M

% of company

4.61%

% of the fund

0.07%

As of

March 31, 2026

T. Rowe Price Small-Cap Value Fund, Inc.

Position value

$3.92M

% of company

3.69%

% of the fund

0.04%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Black Diamond Therapeutics Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
BA Behbahani Ali Insider	9.0M	15.68%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company15.680% Behbahani Ali's insider activity →
BE Buck Elizabeth Insider	170.2K	0.30%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.300% Buck Elizabeth's insider activity →

Behbahani Ali

Insider

9.0M

% of company

15.68%

Change vs last qtr

—

Held since

—

Buck Elizabeth

Insider

170.2K

% of company

0.30%

Change vs last qtr

—

Held since

—

6 more holders behind a free account

See every insider and 5%+ holder of Black Diamond Therapeutics Inc.

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