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AMBWQ AMBIPAR EMERGENCY RESPONSE WT

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*W EXP 03/06/202 (warrant or right)

13 managers (13 13F filers) reported a position in AMBWQ shares at 2025-09-30, 3,943,921 shares in all. 2 filers opened a position and 3 filers sold out during the quarter.

Managers
13
13F filers
13
New
2
Added
1
Reduced
1
Sold out
3
Shares held by filers
3,943,921

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
SPX Gestao de Recursos Ltdain group SPX Gestao de Recursos Ltda1,592,965$66.9K0.01%013F-HRTimelineGroup
Sharp Capital Gestora de Recursos Ltda.1,075,000$45.1K0.04%013F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP200,000$8.4K<0.01%013F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…200,000$8.4K<0.01%013F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.172,590$7.25K<0.01%13F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK162,233$6.81K<0.01%+39,50013F-HRTimelineGroup
TENOR CAPITAL MANAGEMENT Co., L.P.150,000$6.3K<0.01%013F-HRTimeline
Linden Advisors LPin group Linden Advisors LP123,683$6.04K<0.01%013F-HRTimelineGroup
HGC Investment Management Inc.130,905$5.5K<0.01%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…88,174$3.7K<0.01%new13F-HRTimelineGroup
OMERS ADMINISTRATION Corp20,200$3.29K<0.01%013F-HRTimeline
HRT FINANCIAL LP27,557$1K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG614$26<0.01%-71113F-HRTimelineGroup