ARTC · Art Technology Acquisition Corp. · Shareholders & Ownership

$9.99 -0.02 (-0.20%) At close · Oct 20

Market Cap

$348.68M

34.83M

Volume · Oct 20 1908 Avg daily vol (3M) 57.97K

Every disclosed holder of ARTC in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns ARTC

13F quarter Jun 30, 2026

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	55	28,612,139	82.14%	Yes
Insiders (Forms 3, 4, 5)	0	0	0.00%	No
13D/G-only blocks	1	3,280,000	9.42%	Yes
Remaining	—	2,941,194	8.44%	Rest
Registered funds (N-PORT, not summed)	3	87,478	0.25%	No

Shares outstanding: 34,833,333, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ARTC

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Art Technology Sponsor, LLC 13D CIK 2089315 · Unknown · Jan 5, 2026	3,280,000	9.42%	—	Jan 5, 2026
1.1	Art Technology Sponsor, LLC Insider CIK 2089315 · Jan 5, 2026 10% Owner, issuer-wide, not summed	530,000	1.52%	—	Jan 5, 2026	10% Owner, issuer-wide, not summed
2	Linden Advisors LP 13F CIK 1279396 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	2,000,000	5.74%	0	Jun 30, 2026	Classes ARTC, ARTCW
3	Polar Asset Management Partners Inc. 13F CIK 1326389 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	1,924,936	5.53%	+49,936	Jun 30, 2026	Classes ARTC, ARTCW
4	TENOR CAPITAL MANAGEMENT Co., L.P. 13F CIK 1346554 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	1,875,000	5.38%	0	Jun 30, 2026	Classes ARTC, ARTCW
5	ARISTEIA CAPITAL, L.L.C. 13F CIK 1080171 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	1,794,644	5.15%	0	Jun 30, 2026	Classes ARTC, ARTCW
6	HIGHBRIDGE CAPITAL MANAGEMENT LLC 13F CIK 919185 · Registered investment adviser · Jun 30, 2026	1,500,000	4.31%	-40,000	Jun 30, 2026
7	AQR Arbitrage LLC 13F CIK 1167456 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	1,307,010	3.75%	0	Jun 30, 2026	Classes ARTC, ARTCW
8	Magnetar Financial LLC 13F CIK 1352851 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	1,250,000	3.59%	0	Jun 30, 2026	Classes ARTC, ARTCW
9	Mint Tower Capital Management B.V. 13F CIK 1666606 · Unknown · Jun 30, 2026 Classes ARTC, ARTCW	1,250,000	3.59%	0	Jun 30, 2026	Classes ARTC, ARTCW
10	TORONTO DOMINION BANK 13F CIK 947263 · Bank · Jun 30, 2026 Classes ARTCU, ARTCW	1,062,571	3.05%	-221,507	Jun 30, 2026	Classes ARTCU, ARTCW
11	Karpus Management, Inc. 13F CIK 1048703 · Investment adviser · Jun 30, 2026	973,200	2.79%	+973,200	Jun 30, 2026
12	Alberta Investment Management Corp 13F CIK 1463559 · Non-US institution · Jun 30, 2026 Classes ARTC, ARTCW	937,500	2.69%	0	Jun 30, 2026	Classes ARTC, ARTCW
13	SONA ASSET MANAGEMENT (US) LLC 13F CIK 1856405 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	937,500	2.69%	0	Jun 30, 2026	Classes ARTC, ARTCW
14	WOLVERINE ASSET MANAGEMENT LLC 13F CIK 1279891 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	901,558	2.59%	+627,649	Jun 30, 2026	Classes ARTC, ARTCW
15	METEORA CAPITAL, LLC 13F CIK 1905106 · Investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	868,655	2.49%	-381,142	Jun 30, 2026	Classes ARTC, ARTCW
16	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 Classes ARTC, ARTCW	755,470	2.17%	0	Jun 30, 2026	Classes ARTC, ARTCW
17	Periscope Capital Inc. 13F CIK 1695320 · Exempt reporting adviser · Jun 30, 2026 Classes ARTC, ARTCW	744,500	2.14%	+12,500	Jun 30, 2026	Classes ARTC, ARTCW
18	Clear Street Group Inc. 13F CIK 1881567 · Unknown · Jun 30, 2026 Classes ARTC, ARTCU, ARTCW	678,112	1.95%	-553,749	Jun 30, 2026	Classes ARTC, ARTCU, ARTCW
19	GLAZER CAPITAL, LLC 13F CIK 1076809 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCU, ARTCW	618,595	1.78%	-417	Jun 30, 2026	Classes ARTC, ARTCU, ARTCW
20	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026	600,000	1.72%	0	Jun 30, 2026
21	Shaolin Capital Management LLC 13F CIK 1766806 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	553,136	1.59%	-531,864	Jun 30, 2026	Classes ARTC, ARTCW
22	COHEN DANIEL G Insider CIK 1247745 · Jan 5, 2026 Director, issuer-wide, not summed	530,000	1.52%	—	Jan 5, 2026	Director, issuer-wide, not summed
23	LMR Partners LLP 13F CIK 1578621 · Exempt reporting adviser · Jun 30, 2026	500,000	1.44%	0	Jun 30, 2026
24	CSS LLC/IL 13F CIK 1103646 · Unknown · Jun 30, 2026	487,763	1.40%	+396,263	Jun 30, 2026
25	MMCAP International Inc. SPC 13F CIK 1304857 · Unknown · Jun 30, 2026 Classes ARTC, ARTCW	440,375	1.26%	+88,075	Jun 30, 2026	Classes ARTC, ARTCW
26	OMERS ADMINISTRATION Corp 13F CIK 1053321 · Pension or benefit plan · Jun 30, 2026	440,000	1.26%	0	Jun 30, 2026
27	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026	398,750	1.14%	0	Jun 30, 2026
28	K2 PRINCIPAL FUND, L.P. 13F CIK 1461790 · Unknown · Jun 30, 2026 Classes ARTC, ARTCW	392,540	1.13%	+10,281	Jun 30, 2026	Classes ARTC, ARTCW
29	SkyView Investment Advisors, LLC 13F CIK 1848237 · Unknown · Jun 30, 2026 Classes ARTC, ARTCW	375,000	1.08%	+75,000	Jun 30, 2026	Classes ARTC, ARTCW
30	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 13F CIK 1083190 · Unknown · Jun 30, 2026 Classes ARTC, ARTCW	362,500	1.04%	+362,500	Jun 30, 2026	Classes ARTC, ARTCW
31	PICTON MAHONEY ASSET MANAGEMENT 13F CIK 1539041 · Non-US institution · Jun 30, 2026 Classes ARTC, ARTCW	249,995	0.72%	+49,995	Jun 30, 2026	Classes ARTC, ARTCW
32	BERKLEY W R CORP 13F CIK 11544 · Insurance company · Jun 30, 2026	247,924	0.71%	0	Jun 30, 2026
33	Schonfeld Strategic Advisors LLC 13F CIK 1665241 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	245,000	0.70%	-65,120	Jun 30, 2026	Classes ARTC, ARTCW
34	Radcliffe Capital Management, L.P. 13F CIK 1218275 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	244,335	0.70%	+79,242	Jun 30, 2026	Classes ARTC, ARTCW
35	Hudson Bay Capital Management LP 13F CIK 1393825 · Registered investment adviser · Jun 30, 2026	184,872	0.53%	0	Jun 30, 2026
36	WHITEBOX ADVISORS LLC 13F CIK 1257391 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	157,582	0.45%	0	Jun 30, 2026	Classes ARTC, ARTCW
37	Context Capital Management, LLC 13F CIK 1301396 · Registered investment adviser · Jun 30, 2026	125,000	0.36%	0	Jun 30, 2026
38	RIVERNORTH CAPITAL MANAGEMENT, LLC 13F CIK 1447578 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	125,000	0.36%	0	Jun 30, 2026	Classes ARTC, ARTCW
39	RLH Capital LLC 13F CIK 2008031 · Unknown · Jun 30, 2026 Classes ARTC, ARTCW	125,000	0.36%	+25,000	Jun 30, 2026	Classes ARTC, ARTCW
40	Parallax Volatility Advisers, L.P. 13F CIK 1521001 · Registered investment adviser · Jun 30, 2026	102,790	0.30%	-237,197	Jun 30, 2026
41	Ghisallo Capital Management LLC 13F CIK 1825214 · Registered investment adviser · Jun 30, 2026	100,000	0.29%	0	Jun 30, 2026
42	Lineage Point Capital LP 13F CIK 2093311 · Unknown · Jun 30, 2026	100,000	0.29%	0	Jun 30, 2026
43	BOOTHBAY FUND MANAGEMENT, LLC 13F CIK 1549230 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	86,731	0.25%	-157,019	Jun 30, 2026	Classes ARTC, ARTCW
44	Logan Stone Capital, LLC 13F CIK 1535521 · Registered investment adviser · Jun 30, 2026	74,996	0.22%	0	Jun 30, 2026
45	First Trust Capital Management L.P. 13F CIK 1604488 · Registered investment adviser · Jun 30, 2026	65,940	0.19%	0	Jun 30, 2026
46	Bulldog Investors, LLP 13F CIK 1504304 · Registered investment adviser · Jun 30, 2026 Classes ARTC, ARTCW	62,500	0.18%	+12,500	Jun 30, 2026	Classes ARTC, ARTCW
47	Quarry LP 13F CIK 1965207 · Unknown · Jun 30, 2026 Classes ARTC, ARTCW	62,500	0.18%	+12,500	Jun 30, 2026	Classes ARTC, ARTCW
48	First Trust Merger Arbitrage Fund Fund S000048195 · Registered fund · Jun 30, 2026 INVESTMENT MANAGERS SERIES TRUST II, not summed	57,104	0.16%	0	Jun 30, 2026	INVESTMENT MANAGERS SERIES TRUST II, not summed
49	Alyeska Investment Group, L.P. 13F CIK 1453072 · Registered investment adviser · Jun 30, 2026	50,000	0.14%	+50,000	Jun 30, 2026
50	PRELUDE CAPITAL MANAGEMENT, LLC 13F CIK 1387508 · Registered investment adviser · Jun 30, 2026	50,000	0.14%	+50,000	Jun 30, 2026

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 60 holders

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Key facts CIK 2086545 CUSIP G0579E103