Ambipar Emergency Response
AMBI • AMEX
Ambipar Emergency Response is a waste management company in the industrials sector on AMEX, led by Marco Antonio Zanini, with a market cap of $29.9M.
CEOMarco Antonio Zanini
Overview
Overview of institutional ownership in AMBI as of Q3 2025 with a market cap of $44.3M
All Institutions
- Institutions
- 0
- Value Held
- -
- Shares Held
- -
- Avg Position
- -
- Median Position
- -
Hedge Funds
- Hedge Funds
- 0
- Value Held
- -
- Shares Held
- -
- Avg Position
- -
- Median Position
- -
Ownership Breakdown
Based on market cap of $44.3M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in AMBI as of Q3 2025
| Institution | Position Value |
|---|---|
 Constellation Investimentos e Participacoes Ltda Hedge Fund•Multi-Strategy | - 0.00% of portfolio |
 NORTHERN TRUST CORP Institution | - 0.00% of portfolio |
S SBI Securities Co., Ltd. Institution | - 0.00% of portfolio |
S SPX Equities Gestao de Recursos Ltda Institution | - 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for AMBI in Q3 2025
- Traded
- −$3.0M
- Buyers
- 0
- Sellers
- 4
- Total Bought
- +-
- Total Sold
- −$3.0M
- Avg Position
- -
Biggest Buyers
| Institution | Net Bought | |
|---|---|---|
| No buyers found | ||
Biggest Sellers
| Institution | Net Sold |
|---|---|
Constellation Investimentos e Participacoes Ltda Hedge Fund•Multi-Strategy | −$2.9M −571.1K shares |
NORTHERN TRUST CORP Institution | −$119.5K −23.8K shares |
S SPX Equities Gestao de Recursos Ltda Institution | −$44.9K −8.9K shares |
S SBI Securities Co., Ltd. Institution | −$5.0 −1.0 shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited AMBI in Q3 2025
- New Positions
- 0
- New Value
- -
- Exited Positions
- 4
- Exited Value
- $3.0M
New Positions
| Institution | Position Value |
|---|---|
| No new positions found | |
Exited Positions
| Institution | Previous Position |
|---|---|
Constellation Investimentos e Participacoes Ltda Hedge Fund•Multi-Strategy | $2.9M 571.1K shares |
NORTHERN TRUST CORP Institution | $119.5K 23.8K shares |
S SPX Equities Gestao de Recursos Ltda Institution | $44.9K 8.9K shares |
S SBI Securities Co., Ltd. Institution | $5.0 1.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in AMBI as of Q3 2025
- Call Positions
- 0
- Call Value
- -
- Put Positions
- 0
- Put Value
- -
Call Positions
| Institution | Position Value |
|---|---|
| No call positions found | |
Put Positions
| Institution | Position Value |
|---|---|
| No put positions found | |
Most Committed Institutions
Institutions with AMBI as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
Constellation Investimentos e Participacoes Ltda Hedge Fund•Multi-Strategy | 0.00% - |
NORTHERN TRUST CORP Institution | 0.00% - |
S SBI Securities Co., Ltd. Institution | 0.00% - |
S SPX Equities Gestao de Recursos Ltda Institution | 0.00% - |