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Disclosery

ARTC ART TECHNOLOGY ACQUISITION C

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

37 managers (37 13F filers) reported a position in ARTC shares at 2026-03-31, 18,692,256 shares in all. 37 filers opened a position and 0 filers sold out during the quarter.

Managers
37
13F filers
37
New
37
Added
0
Reduced
0
Sold out
0
Shares held by filers
18,692,256

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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$15.7M0.09%new13F-HRTimelineGroup
Polar Asset Management Partners Inc.1,500,000$14.7M0.35%new13F-HRTimeline
TENOR CAPITAL MANAGEMENT Co., L.P.1,500,000$14.7M0.23%new13F-HRTimeline
HIGHBRIDGE CAPITAL MANAGEMENT LLC1,500,000$14.7M0.93%new13F-HRTimeline
ARISTEIA CAPITAL, L.L.C.1,435,717$14.1M0.32%new13F-HRTimeline
Meteora Capital, LLC1,050,000$10.3M0.76%new13F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC1,045,608$10.2M0.17%new13F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC1,000,000$9.81M0.1%new13F-HRTimelineGroup
Mint Tower Capital Management B.V.1,000,000$9.81M0.91%new13F-HRTimeline
Shaolin Capital Management LLC910,000$8.93M0.37%new13F-HRTimeline
SONA ASSET MANAGEMENT (US) LLCin group SONA ASSET MANAGEMENT (US) LLC750,000$7.36M0.28%new13F-HRTimelineGroup
Alberta Investment Management Corp750,000$7.35M0.05%new13F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.679,564$6.67M0.04%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS604,376$5.92M<0.01%new13F-HRTimelineGroup
Periscope Capital Inc.584,900$5.74M1%new13F-HRTimeline
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC450,000$4.41M0.09%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP398,750$3.91M<0.01%new13F-HRTimelineGroup
Parallax Volatility Advisers, L.P.339,987$3.36M0.15%new13F-HRTimeline
BERKLEY W R CORP247,924$2.43M0.13%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC196,883$1.93M0.04%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…184,872$1.81M0.01%new13F-HRTimelineGroup
Radcliffe Capital Management, L.P.134,252$1.32M0.1%new13F-HRTimeline
WHITEBOX ADVISORS LLC126,066$1.24M0.02%new13F-HRTimeline
Ghisallo Capital Management LLC100,000$982K0.03%new13F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC100,000$981K0.05%new13F-HRTimeline
CSS LLC/IL91,500$898K0.05%new13F-HRTimeline
Logan Stone Capital, LLC74,996$736K0.2%new13F-HRTimeline
First Trust Capital Management L.P.in group FIRST TRUST ADVISORS LP65,940$647K0.03%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC60,120$590K<0.01%new13F-HRTimeline
Warberg Asset Management LLC50,000$491K0.14%new13F-HRTimeline
K2 PRINCIPAL FUND, L.P.50,000$490K0.05%new13F-HRTimeline
ABC ARBITRAGE SAin group ABC ARBITRAGE SA40,000$392K0.05%new13F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC26,607$261K0.01%new13F-HRTimelineGroup
Kepos Capital LPin group Kepos Capital LP25,000$245K0.4%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC10,815$106K<0.01%new13F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC8,367$82.1K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY12$118<0.01%new13F-HRTimelineGroup