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Braskem BAK

US equityMarket cap rank #3459Chemicals
$1.87 +$0.10 (+5.37%)
Market open · Oct 8, 12:30 pm ET · After hours $1.79 +1.13%
Open$1.68
Prev close$1.77
Day range$1.67 – $1.89
Volume2.86M
Market cap$743.17M
P/E (TTM)–
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership99.3%-2.20 pts vs. prior quarter
Institutions holding119-3 vs. prior quarter
Insider trades (recent)0 buys / 0 sellsBalanced
Short interest1.14% of floatDays to cover 2.5 · as of 15 Sep 2026
Short-sale volume share21.8%5-day average of daily volume

Short-sale volume as % of daily volume

3%12%20%28%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: +$682.4K (11 inflow days, 9 outflow days).

Net flow by order size, last 20 sessions

+$2,185Super+$680.2KBig+$232.5KMid+$670.5KSmall

Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.

The five largest holders on file together own 92.9% of shares outstanding.

Largest holders

  • Petróleo Brasileiro S.A. - Petrobras36.16%
  • Shine Fundo De Investimento Em Participações Responsabilidade Limitada34.33%
  • Kieppe Participações e Administração Ltda.18.20%
  • Norges Bank Investment Management2.15%
  • 140 Summer Partners LP2.02%
  • Genial Investimentos Corretora de Valores Mobiliários S.A.0.88%
  • Vanguard Capital Management, LLC0.71%
  • BlackRock0.65%

By investor type

  • Private Company53.29%
  • Public Company36.43%
  • Mutual Fund4.29%
  • Hedge Fund3.11%
  • Sovereign Wealth Fund2.15%
  • Individual/Insider0.13%
  • Family Office/Trust0.01%
  • Others0.01%

Reported short interest has risen from 0.79% to 1.14% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Recent institutional activity

HolderTypePeriodShare changeNew stake
BlackRock Mutual Fund 2026/Q3 +274,798 0.6%
140 Summer Partners LP Hedge Fund 2026/Q3 +8,030,124 2.0%
Barclays Bank Plc Private Company 2026/Q3 +1,519,411 0.4%
Marshall Wace LLP Hedge Fund 2026/Q3 +1,338,983 0.5%
Point72 Asset Management, L.P. Hedge Fund 2026/Q3 +1,182,683 0.3%
UBS Asset Management Mutual Fund 2026/Q3 +314,380 0.2%
Jane Street Group, LLC Private Company 2026/Q3 +301,479 0.2%
Marex Group Limited Public Company 2026/Q3 +300,000 0.1%
Millennium Management LLC Hedge Fund 2026/Q3 +150,636 0.0%
D. E. Shaw & Co., L.P. Hedge Fund 2026/Q3 +78,880 0.0%
Ramsey Quantitative Systems, Inc. Mutual Fund 2026/Q3 +63,373 0.0%
H. M. Payson & Co. Mutual Fund 2026/Q3 +51,915 0.0%
Engineers Gate Manager LP Hedge Fund 2026/Q3 +44,905 0.0%
LPL Financial LLC Mutual Fund 2026/Q3 +44,850 0.2%
Jain Global LLC Hedge Fund 2026/Q3 +42,173 0.0%

Institutional buy/sell activity by reporting period, largest moves first.

Insider transactions

DateInsiderTitleTransactionSharesPriceHeld after
7 Jun 2026 Isabella de Albuquerque Initial Statement of Beneficial +0 – 1
7 Jun 2026 Marcelo Pogliese Director Initial Statement of Beneficial +0 – 250
17 Mar 2026 Mauricio Bezerra Director Initial Statement of Beneficial +0 – 500
16 Mar 2026 Geraldo Magela de Vilaca Netto Executive Officer and Head of Legal, Corporate Governance & Intellectual Property Initial Statement of Beneficial +0 – 33,810
16 Mar 2026 Ana Carolina Carvalho Cerqueyra Initial Statement of Beneficial +0 – 90,210
15 Mar 2026 Roberto Prisco Ramos Former Head of Internationalization Business Unit and Vice President Initial Statement of Beneficial +0 – 105,080
15 Mar 2026 Roberto De Prisco Initial Statement of Beneficial +0 – 9,120
15 Mar 2026 Nir Lander Chief Compliance Officer Initial Statement of Beneficial +0 – 23,725
15 Mar 2026 Ferreira Soller Initial Statement of Beneficial +0 – 117,044
15 Mar 2026 Carlos Friedheim Initial Statement of Beneficial +0 – 3,636
15 Mar 2026 Antonio Benetti Initial Statement of Beneficial +0 – 89,691
12 Mar 2026 Felipe Jens Former Director Initial Statement of Beneficial +0 – 47,458
12 Mar 2026 Stefan Lepecki Executive Officer & Head of South America Business Initial Statement of Beneficial +0 – 62,640
12 Mar 2026 Americo Bartilotti Initial Statement of Beneficial +0 – 53,897

From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 4,538,927 1.1% 2.5
31 Aug 2026 6,059,110 1.5% 1.6
14 Aug 2026 3,422,532 0.9% 2.1
31 Jul 2026 3,922,219 1.0% 2.2
15 Jul 2026 4,652,031 1.2% 2.5
30 Jun 2026 3,158,892 0.8% 1.0

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