$BAK

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

Ownership

13F as of Q2 2026 · 451.7M shares outstanding

Who owns BAK?

By type of holder

Institutions 4.1% Insiders 0.0% Everyone else 95.9%

Concentration Top 10 holders own 3.7%

140 Summer Partners LP 1.8% · Marshall Wace, LLP 0.5%

Institutional ownership

4.1%

+2.5 pts vs last qtr

Institutional holders

-2 vs last qtr

Net shares bought

+11.4M

by institutions in Q2 2026

New / sold out

14 / 16

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

140 Summer Partners LP NEW +8.0M
Barclays PLC NEW +1.5M

Biggest sellers in Q2 2026

Brooklands Fund Management Ltd SOLD OUT −550.0K
Lonestar Capital Management LLC SOLD OUT −500.0K

Who is planning to sell?

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

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Braskem SA.

How patient are the owners?

Institutional shares by how long they've been held

5+ years6% 3–5 years1% 1–3 years23% Under 1 year71%

Quarterly turnover

108.3%

of institutional shares changed hands

Top 10 managers, median time held

2.3 years

Super Investors

Investment managers reporting BAK on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
1S 140 Summer Partners LP	8.0M	1.78%	NEW	Q2 '26	1.4%
Shares held by quarter Peak holding8.0M (Q2'26) Change over 8 quarters+8.0M Share of the company1.780% 140 Summer Partners LP's full portfolio →
MW Marshall Wace, LLP	2.0M	0.45%	+1.3M (+196.8%)	Q4 '25	0.0%
Shares held by quarter Peak holding2.0M (Q2'26) Change over 8 quarters+1.3M Share of the company0.450% Marshall Wace, LLP's full portfolio →

140 Summer Partners LP

8.0M

% of company

1.78%

Change vs last qtr

NEW

Held since

Q2 '26

Marshall Wace, LLP

2.0M

% of company

0.45%

Change vs last qtr

+1.3M (+196.8%)

Held since

Q4 '25

28 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting BAK on Form N-PORT; together they hold 0.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
SS State Street(R) SPDR(R) Portfolio Emerging Markets ETF SPDR Index Shares Funds	$779K	319.4K	0.07%	0.00%	June 30, 2026
AE Avantis Emerging Markets Equity ETF American Century ETF Trust	$154K	90.6K	0.02%	0.00%	August 31, 2026

State Street(R) SPDR(R) Portfolio Emerging Markets ETF

SPDR Index Shares Funds

Position value

$779K

% of company

0.07%

% of the fund

0.00%

As of

June 30, 2026

Avantis Emerging Markets Equity ETF

American Century ETF Trust

Position value

$154K

% of company

0.02%

% of the fund

0.00%

As of

August 31, 2026

5 more funds behind a free account

See every fund holding Braskem SA 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
DA de Albuquerque Isabella Saboya Insider	1	0.00%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.000% de Albuquerque Isabella Saboya's insider activity →

de Albuquerque Isabella Saboya

Insider

% of company

0.00%

Change vs last qtr

—

Held since

—

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