Latest Period
Q1 2026
Security Snapshot
Ambipar Emergency Response - Class A Ordinary Shares, par value $0.0001 per share (AMBIQ) Institutional Ownership
CUSIP: G02532102
13F Institutional Holders and Ownership History from Q1 2023 to Q1 2026
Institutions Reporting
1
Shares (Excl. Options)
128,800
Price
$0.05
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- Security type / class
- Equity / Class A Ordinary Shares, par value $0.0001 per share
- Symbol
- AMBIQ on OTC
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 128,800
- Total 13F value
- $6,633
- Share change
- -56,200
- Value change
- -$23,000
- Number of holders
- 1
- Shares outstanding
- 17,405,859
- SEC-reported price per share
- $0.05
Latest holder snapshot
4 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AMBIQ - Ambipar Emergency Response - Class A Ordinary Shares, par value $0.0001 per share is tracked under CUSIP G02532102.
- 1 institution reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 2 to 1 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $100,486 to $6,633.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 1 institution filings for Q1 2026.
Security key
G02532102
Latest holder period
Q1 2026
13F holders
1
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
AMBIQ full holder history
Ambipar Emergency Response SEC filings
Ambipar Emergency Response company facts
Ambipar Emergency Response insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G02532102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
AMBIQ
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Riva Ridge Capital Management LP | 7.1% | $1,557,128 | 1,235,816 | Riva Ridge Capital Management LP | 29 Oct 2025 |
As of 31 Mar 2026, 1 institutional investors reported holding 128,800 shares of Ambipar Emergency Response - Class A Ordinary Shares, par value $0.0001 per share (AMBIQ). This represents 0.74% of the company’s total 17,405,859 outstanding shares.
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
13
Latest
Q1 2026
Rows shown
1-13 of 13
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 128,800 | $6,633 | -$23,000 | $0.05 | 1 |
| 2025 Q4 | 185,000 | $100,486 | -$3,119 | $0.51 | 2 |
| 2025 Q3 | 178,856 | $142,458 | -$2,753,139 | $0.80 | 5 |
| 2025 Q2 | 603,772 | $3,033,834 | -$598,047 | $5.02 | 4 |
| 2025 Q1 | 724,349 | $3,592,771 | +$381,864 | $4.96 | 6 |
| 2024 Q4 | 647,357 | $3,424,518 | +$52,614 | $5.29 | 6 |
| 2024 Q3 | 637,410 | $3,741,597 | -$300,733 | $5.87 | 4 |
| 2024 Q2 | 688,778 | $2,700,010 | -$80,855 | $3.92 | 6 |
| 2024 Q1 | 709,361 | $3,759,614 | -$116,865 | $5.30 | 6 |
| 2023 Q4 | 731,411 | $5,734,262 | +$19,982 | $7.84 | 5 |
| 2023 Q3 | 735,523 | $5,089,820 | -$483,465 | $6.92 | 7 |
| 2023 Q2 | 748,478 | $7,260,280 | +$1,643,888 | $9.70 | 5 |
| 2023 Q1 | 579,872 | $4,772,318 | +$4,772,318 | $8.23 | 3 |