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Disclosery

AACB ARTIUS II ACQUISITION INC

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SHS CL A (common)

41 managers (41 13F filers) reported a position in AACB shares at 2025-06-30, 18,992,045 shares in all. 40 filers opened a position and 0 filers sold out during the quarter.

Managers
41
13F filers
41
New
40
Added
0
Reduced
0
Sold out
0
Shares held by filers
18,992,045

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, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, 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
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…2,000,000$20.2M0.04%new13F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC1,502,205$15.2M0.36%new13F-HRTimelineGroup
Sculptor Capital LPin group Sculptor Capital LP1,400,000$14.2M0.23%new13F-HRTimelineGroup
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC1,194,915$12.1M0.43%new13F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP1,000,000$10.1M0.06%new13F-HRTimelineGroup
Polar Asset Management Partners Inc.1,000,000$10.1M0.25%new13F-HRTimeline
Westchester Capital Management, LLCin group Westchester Capital Managemen…995,939$10.1M0.59%new13F-HRTimelineGroup
Alberta Investment Management Corp980,000$9.92M0.08%new13F-HR/ATimeline
PICTON MAHONEY ASSET MANAGEMENT750,000$7.59M0.11%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP725,000$7.34M0.01%new13F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.600,000$6.07M0.01%new13F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC600,000$6.07M0.03%new13F-HRTimelineGroup
HBK INVESTMENTS L P500,000$5.06M0.09%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
MOORE CAPITAL MANAGEMENT, LP500,000$5.06M0.1%new13F-HRTimeline
Jain Global LLC500,000$5.06M0.08%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC462,795$4.68M<0.01%new13F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…400,000$4.05M0.02%new13F-HRTimeline
BERKLEY W R CORP396,960$4.02M0.25%new13F-HRTimeline
First Trust Capital Management L.P.in group FIRST TRUST ADVISORS LP380,000$3.85M0.26%new13F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK362,015$3.66M0.01%new13F-HRTimelineGroup
Alpine Global Management, LLC288,211$2.92M0.69%new13F-HRTimeline
Radcliffe Capital Management, L.P.268,002$2.71M0.21%new13F-HRTimeline
Governors Lane LP250,000$2.53M0.35%new13F-HRTimeline
Schonfeld Strategic Advisors LLC240,000$2.43M0.02%new13F-HRTimeline
Periscope Capital Inc.228,400$2.31M0.87%new13F-HRTimeline
GRITSTONE ASSET MANAGEMENT LLC200,000$2.02M2%new13F-HRTimeline
Context Capital Management, LLC162,191$1.64M0.06%new13F-HRTimeline
OCONNOR, A Distinct Business Unit of UB…160,000$1.62M0.04%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Shaolin Capital Management LLC150,000$1.52M0.07%new13F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC150,018$1.5M0.03%13F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC125,316$1.27M0.04%new13F-HRTimeline
ATW SPAC MANAGEMENT LLC125,316$1.27M1.94%new13F-HRTimeline
K2 PRINCIPAL FUND, L.P.112,006$1.13M0.21%new13F-HRTimeline
Centiva Capital, LP100,000$1.01M0.07%new13F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC63,558$643K0.01%new13F-HRTimelineGroup
DLD Asset Management, LP40,894$414K0.05%new13F-HR/ATimeline
CLEAR STREET LLC32,973$334K<0.01%new13F-HRTimeline
BARDIN HILL MANAGEMENT PARTNERS LP25,027$253K0.16%new13F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC20,139$204K0.01%new13F-HRTimelineGroup
FNY Investment Advisers, LLC102$1K<0.01%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY63$638<0.01%new13F-HRTimelineGroup