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Disclosery

ARTC ART TECHNOLOGY ACQUISITION C

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USD CL A ORD SHS (common), issuer CIK 2086545

46 managers (46 13F filers) reported a position in ARTC shares at 2026-06-30, 21,282,177 shares in all. 11 filers opened a position and 2 filers sold out during the quarter.

Managers
46
13F filers
46
New
11
Added
7
Reduced
8
Sold out
2
Shares held by filers
21,282,177

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 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
Linden Advisors LPin group Linden Advisors LP1,600,000$15.9M0.08%013F-HRTimelineGroup
Polar Asset Management Partners Inc.1,543,436$15.3M0.28%+43,43613F-HRTimeline
TENOR CAPITAL MANAGEMENT Co., L.P.1,500,000$14.9M0.21%013F-HRTimeline
HIGHBRIDGE CAPITAL MANAGEMENT LLC1,500,000$14.9M0.51%013F-HRTimeline
ARISTEIA CAPITAL, L.L.C.1,435,717$14.3M0.22%013F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC1,045,608$10.4M0.15%013F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC1,000,000$9.94M0.09%013F-HRTimelineGroup
Mint Tower Capital Management B.V.1,000,000$9.93M1.17%013F-HRTimeline
Karpus Management, Inc.973,200$9.66M0.28%new13F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC836,573$8.31M0.11%+828,20613F-HRTimelineGroup
Meteora Capital, LLC818,655$8.13M0.67%-231,34513F-HRTimeline
Alberta Investment Management Corp750,000$7.46M0.04%013F-HRTimeline
SONA ASSET MANAGEMENT (US) LLCin group SONA ASSET MANAGEMENT (US) LLC750,000$7.45M0.28%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS604,376$6.01M<0.01%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC600,000$5.96M<0.01%new13F-HRTimelineGroup
Periscope Capital Inc.584,900$5.81M0.92%013F-HRTimeline
CSS LLC/IL487,763$4.84M0.21%+396,26313F-HRTimeline
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC449,983$4.47M0.11%-1713F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP398,750$3.96M<0.01%013F-HRTimelineGroup
Shaolin Capital Management LLC390,524$3.88M0.22%-519,47613F-HRTimeline
MMCAP International Inc. SPCin group MMCAP352,300$3.5M0.3%new13F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…300,000$2.98M0.01%new13F-HRTimeline
BERKLEY W R CORP247,924$2.46M0.12%013F-HRTimeline
Radcliffe Capital Management, L.P.213,494$2.12M0.16%+79,24213F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.212,448$2.11M0.01%-467,11613F-HRTimelineGroup
Schonfeld Strategic Advisors LLC200,000$1.99M0.01%+139,88013F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT199,996$1.99M0.02%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…184,872$1.84M0.01%013F-HRTimelineGroup
WHITEBOX ADVISORS LLC126,066$1.25M0.02%013F-HRTimeline
Parallax Volatility Advisers, L.P.102,790$1.02M0.04%-237,19713F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC100,000$996K0.05%013F-HRTimeline
Ghisallo Capital Management LLC100,000$994K0.02%013F-HRTimeline
RLH Capital LLC100,000$993K0.48%new13F-HRTimeline
Logan Stone Capital, LLC74,996$745K0.16%013F-HRTimeline
First Trust Capital Management L.P.65,940$655K0.04%013F-HRTimeline
K2 PRINCIPAL FUND, L.P.54,300$539K0.05%+4,30013F-HRTimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.50,000$502K<0.01%new13F-HRTimelineGroup
Stoic Point Capital Management LLC50,000$502K0.42%new13F-HRTimeline
Bulldog Investors, LLP50,000$496K0.11%new13F-HRTimeline
Warberg Asset Management LLC50,000$496K0.15%013F-HRTimeline
Quarry LP50,000$496K0.08%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC46,883$466K0.01%-150,00013F-HRTimeline
ABC ARBITRAGE SAin group ABC ARBITRAGE SA35,000$348K0.04%-5,00013F-HRTimelineGroup
Kepos Capital LPin group Kepos Capital LP24,100$239K0.33%-90013F-HRTimelineGroup
Tuttle Capital Management, LLC21,538$214K0.14%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY45$447<0.01%+3313F-HRTimelineGroup