$BBOT

$2.69 +$0.05 (1.89%) Close

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

Ownership

13F as of Q2 2026 · 80.2M shares outstanding

Who owns BBOT?

By type of holder

Institutions 73.8% Insiders 26.3% Everyone else 0.0%

Concentration Top 10 holders own 113.4%

Bihua Chen 22.3% · Cormorant Asset Management, LP 22.3%

Institutional ownership

73.8%

+2.1 pts vs last qtr

Institutional holders

-2 vs last qtr

Net shares bought

+1.6M

by institutions in Q2 2026

New / sold out

16 / 18

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Vanguard Capital Management LLC +1.5M
State Street Corp +810.3K

Biggest sellers in Q2 2026

Paradigm Biocapital Advisors LP SOLD OUT −868.2K
Octagon Capital Advisors LP SOLD OUT −719.0K

Who is planning to sell?

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

Is your stake being diluted?

Diluted share count, FY2024–FY2025

+241276.2%

+241276.23% a year

Each share's claim on the business

−100.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $10.3M

over 2 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+ years0% 3–5 years0% 1–3 years49% Under 1 year51%

Quarterly turnover

8.2%

of institutional shares changed hands

Top 10 managers, median time held

3 quarters

Super Investors

Investment managers reporting BBOT on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
CA Cormorant Asset Management, LP	17.9M	22.30%	Unchanged	2024	7.0%
Shares held by quarter Peak holding17.9M (Q3'25) Change over 8 quarters+15.0M Share of the company22.300% Cormorant Asset Management, LP's full portfolio →
DM Deerfield Management Company, L.P.	4.9M	6.09%	Unchanged	Q3 '25	0.4%
Shares held by quarter Peak holding4.9M (Q3'25) Change over 8 quarters+4.9M Share of the company6.090% Deerfield Management Company, L.P.'s full portfolio →

Cormorant Asset Management, LP

17.9M

% of company

22.30%

Change vs last qtr

Unchanged

Held since

2024

Deerfield Management Company, L.P.

4.9M

% of company

6.09%

Change vs last qtr

Unchanged

Held since

Q3 '25

28 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting BBOT on Form N-PORT; together they hold 8.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$10.8M	1.4M	1.77%	0.00%	June 30, 2026
BH BlackRock Health Sciences Opportunities Portfolio BlackRock Funds	$7.77M	883.1K	1.10%	0.12%	August 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$10.8M

% of company

1.77%

% of the fund

0.00%

As of

June 30, 2026

BlackRock Health Sciences Opportunities Portfolio

BlackRock Funds

Position value

$7.77M

% of company

1.10%

% of the fund

0.12%

As of

August 31, 2026

23 more funds behind a free account

See every fund holding BridgeBio Oncology 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
BC Bihua Chen 5%+ holder 13D · 22.3%	17.9M	22.30%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company22.300% Disclosed stake13D · 22.3% View the 13D/G filing →
BP BridgeBio Pharma LLC 5%+ holder 13D · 17.5%	13.9M	17.31%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company17.310% Disclosed stake13D · 17.5% View the 13D/G filing →

Bihua Chen

5%+ holder13D · 22.3%

17.9M

% of company

22.30%

Change vs last qtr

—

Held since

—

BridgeBio Pharma LLC

5%+ holder13D · 17.5%

13.9M

% of company

17.31%

Change vs last qtr

—

Held since

—

13 more holders behind a free account

See every insider and 5%+ holder of BridgeBio Oncology Therapeutics Inc.

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