$BCAB

$1.74 +$0.00 (0.0%) Close

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

Ownership

13F as of Q2 2026 · 1.7M shares outstanding

Who owns BCAB?

By type of holder

Institutions 6.5% Insiders 1.3% Everyone else 92.2%

Concentration Top 3 holders own 7.8%

Acorn Capital Advisors, LLC 6.5% · Sievers Eric 0.7%

Institutional ownership

6.5%

-93.5 pts vs last qtr

Institutional holders

-33 vs last qtr

Net shares bought

−15.3M

by institutions in Q2 2026

New / sold out

0 / 33

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

None.

Biggest sellers in Q2 2026

Acorn Capital Advisors, LLC −5.3M
Millennium Management LLC SOLD OUT −2.8M

Who is planning to sell?

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

Is your stake being diluted?

Diluted share count, FY2021–FY2025

+70.2%

+14.22% a year

Each share's claim on the business

−41.3%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $67.6M

over 5 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 years100% Under 1 year0%

Quarterly turnover

49.6%

of institutional shares changed hands

Top 10 managers, median time held

1.5 years

Super Investors

Investment managers reporting BCAB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AC Acorn Capital Advisors, LLC	108.1K	6.51%	−5.3M (−98.0%)	2024	0.1%
Shares held by quarter Peak holding5.4M (Q1'26) Change over 8 quarters+108.1K Share of the company6.510% Acorn Capital Advisors, LLC's full portfolio →
MM Millennium Management LLC	—	—	SOLD OUT	—	0.0%
Shares held by quarter Peak holding2.8M (Q1'26) Change over 8 quarters−2.7M Millennium Management LLC's full portfolio →

Acorn Capital Advisors, LLC

108.1K

% of company

6.51%

Change vs last qtr

−5.3M (−98.0%)

Held since

2024

Millennium Management LLC

—

% of company

—

Change vs last qtr

SOLD OUT

Held since

—

4 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting BCAB on Form N-PORT; together they hold 124.5% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$192K	1.2M	71.72%	0.00%	March 31, 2026
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$73.8K	458.2K	27.59%	0.00%	March 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$192K

% of company

71.72%

% of the fund

0.00%

As of

March 31, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$73.8K

% of company

27.59%

% of the fund

0.00%

As of

March 31, 2026

7 more funds behind a free account

See every fund holding Bioatla 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
SE Sievers Eric Insider	11.3K	0.68%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.680% Sievers Eric's insider activity →
VC Vasquez Christian Insider	10.5K	0.63%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.630% Vasquez Christian's insider activity →

Sievers Eric

Insider

11.3K

% of company

0.68%

Change vs last qtr

—

Held since

—

Vasquez Christian

Insider

10.5K

% of company

0.63%

Change vs last qtr

—

Held since

—

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