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ARTC · Art Technology Acquisition Corp. · Holdings

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$10.00 -0.02 (-0.20%) At close · Oct 27
Rebalance outlook locked
Market Cap
$349.03M
Shares
34.83M
Volume · Oct 26 516 Avg daily vol (3M) 58.25K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of ARTC: 13F, 13D and 13G, insiders and funds →
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 55
Total Value: $240,977,368
Total Shares: 29,166,003

Institutional Ownership Trend

3 quarters

Holder Concentration

Across 55 13F filers
Top Holder
6.7%
Mar 2026 → Jun 2026 · range 6.7% – 6.7%
of institutional value
Top 5
31.5%
Mar 2026 → Jun 2026 · range 31.5% – 31.9%
of institutional value
Top 10
52.2%
Mar 2026 → Jun 2026 · range 52.2% – 54.8%
of institutional value
HHI
383
Mar 2026 → Jun 2026 · range 383 – 410
Broadly held

Who Holds ARTC

Last 3 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 55 filers, like-for-like change +2.6%; actively managed books +2.5%; index-like books +93.9%.

Holder type Share Filers Change
Registered adviser 61.1% 31 -0.6%
Exempt adviser 4.3% 2 +1.0%
Adviser 6.8% 3 +43.9%
Bank 3.7% 1 -17.3%
Insurer 0.9% 1 0.0%
Benefit plan 1.5% 1 0.0%
Non-US 6.8% 3 +2.6%
Holding company 0.0% 2 -18.3%
Unknown 14.9% 11 +9.9%

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

47 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
3
6.38% of filers hold it in their top 10
Mar 31, 2026: 3
Holders above 5%
0
median weight 0.145%
Mar 31, 2026: 0
Crowding
—
the issuer has more than one class of common stock, so its count is the total across classes
Private-fund advisers
—
of shares outstanding
Institutional ownership
—
the issuer has more than one class of common stock, so its count is the total across classes
Top 10 holders
57.6%
of 13F shares, Herfindahl 0.044
Active holders
+15.3%
like-for-like share change of active filers
5% stakes on record
4
1 13D, 3 13G (3 institutional, 0 passive, 0 exempt)
How long holders have held it value-weighted 1.9 quarters
Under 1 year 100.0% 1 to 3 years 0.000% 3 years or more 0.000% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost
$9.88
estimated per share
Quarter-end price
$9.93
implied by 13F values
Estimated gain or loss
+0.5%
price against the estimated cost
Estimated at a loss
0.000%
of costed 13F value

Estimated cost covers 14.1% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies ARTC's active holders also own, quarter ended Jun 30, 2026
# Company Shared holders
1 MEVO M Evo Global Acquisition Corp II 14
2 BDCI BTC Development Corp. 11
3 XCBE X3 Acquisition Corp. Ltd. 12
4 TVAI Thayer Ventures Acquisition Corp II 11
5 LWAC LightWave Acquisition Corp. 11
6 PTOR Praetorian Acquisition Corp. 10
7 BIXI Bitcoin Infrastructure Acquisition Corp Ltd 11
8 MESH Meshflow Acquisition Corp 11
9 WENN WEN Acquisition Corp 13
10 BIII Black Spade Acquisition III Co 7

Shareholder Targets

13F filers that own its peers but not ARTC, quarter ended Jun 30, 2026

Found through its holder-overlap peers: MEVO, BDCI, XCBE, TVAI, LWAC, PTOR, BIXI, MESH, WENN, BIII, KFII, AACI, MKLY, CRAN, MBVI, ARCI, RDAG, INAC, XSLL, EVAC. 87 filers in all.

# Filer In peers
1 ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active $149,785,696 9 held
2 D. E. Shaw & Co., Inc. Unknown, Systematic-like $145,109,130 18 held
3 Verition Fund Management LLC Registered adviser, Diversified active $114,734,753 17 held
4 Westchester Capital Management, LLC Registered adviser, Diversified active $75,314,317 16 held
5 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US, Diversified active $70,989,034 13 held
6 Governors Lane LP Registered adviser, Diversified active $66,211,811 11 held
7 Wealthspring Capital LLC Registered adviser, Diversified active $51,141,424 12 held
8 MOORE CAPITAL MANAGEMENT, LP Registered adviser, Systematic-like $49,290,003 15 held
9 Crossingbridge Advisors, LLC Adviser, Diversified active $40,201,611 10 held
10 MIZUHO SECURITIES USA LLC Unknown, Diversified active $39,801,790 14 held

Fund Ownership of ARTC by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.00% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 0.00% 0
Index ETFs 0.00% 0
Active ETFs 0.14% 48,461
Active funds 0.33% 115,940
Unclassified 0.00% 0
All registered funds 0.47% 164,401
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 31 Exempt adviser 2 Adviser 3 Bank 1 Insurer 1 Benefit plan 1 Non-US 3 Holding company 2 Unknown 11
Showing 91 of 91
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Linden Advisors LP $15,888,000 6.59% 1,600,000
Polar Asset Management Partners Inc. $15,326,319 6.36% 1,543,436
HIGHBRIDGE CAPITAL MANAGEMENT LLC $14,895,000 6.18% 1,500,000
TENOR CAPITAL MANAGEMENT Co., L.P. $14,895,000 6.18% 1,500,000
ARISTEIA CAPITAL, L.L.C. $14,256,669 5.92% 1,435,717
AQR Arbitrage LLC $10,382,887 4.31% 1,045,608
Mint Tower Capital Management B.V. $9,930,000 4.12% 1,000,000
Magnetar Financial LLC $9,930,000 4.12% 1,000,000
Karpus Management, Inc. $9,663,876 4.01% 973,200
TORONTO DOMINION BANK ARTCU $9,655,590 4.01% 962,671
WOLVERINE ASSET MANAGEMENT LLC $8,307,169 3.45% 836,573
METEORA CAPITAL, LLC $8,129,244 3.37% 818,655
Alberta Investment Management Corp $7,447,500 3.09% 750,000
SONA ASSET MANAGEMENT (US) LLC $7,447,500 3.09% 750,000
BNP PARIBAS ARBITRAGE, SA $6,001,453 2.49% 604,376
MILLENNIUM MANAGEMENT LLC $5,958,000 2.47% 600,000
Periscope Capital Inc. $5,808,057 2.41% 584,900
LMR Partners LLP ARTCU $5,015,000 2.08% 500,000
CSS LLC/IL $4,843,486 2.01% 487,763
GLAZER CAPITAL, LLC $4,468,331 1.85% 449,983
OMERS ADMINISTRATION Corp ARTCU $4,413,200 1.83% 440,000
TWO SIGMA INVESTMENTS, LP $3,959,587 1.64% 398,750
Shaolin Capital Management LLC $3,877,903 1.61% 390,524
MMCAP International Inc. SPC $3,498,339 1.45% 352,300
Clear Street Group Inc. ARTCU $3,256,660 1.35% 324,692
SkyView Investment Advisors, LLC $2,979,000 1.24% 300,000
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $2,979,000 1.24% 300,000
BERKLEY W R CORP $2,461,885 1.02% 247,924
Radcliffe Capital Management, L.P. $2,119,995 0.88% 213,494
Clear Street Group Inc. $2,109,608 0.88% 212,448
Schonfeld Strategic Advisors LLC $1,986,000 0.82% 200,000
PICTON MAHONEY ASSET MANAGEMENT $1,985,960 0.82% 199,996
Hudson Bay Capital Management LP $1,835,778 0.76% 184,872
WHITEBOX ADVISORS LLC $1,251,835 0.52% 126,066
Parallax Volatility Advisers, L.P. $1,020,704 0.42% 102,790
Lineage Point Capital LP ARTCU $1,003,000 0.42% 100,000
Ghisallo Capital Management LLC $993,000 0.41% 100,000
RLH Capital LLC $993,000 0.41% 100,000
RIVERNORTH CAPITAL MANAGEMENT, LLC $993,000 0.41% 100,000
Logan Stone Capital, LLC $744,710 0.31% 74,996
First Trust Capital Management L.P. $654,784 0.27% 65,940
GLAZER CAPITAL, LLC ARTCU $566,845 0.24% 56,515
K2 PRINCIPAL FUND, L.P. $539,199 0.22% 54,300
PRELUDE CAPITAL MANAGEMENT, LLC ARTCU $501,500 0.21% 50,000
Alyeska Investment Group, L.P. $496,500 0.21% 50,000
Bulldog Investors, LLP $496,500 0.21% 50,000
Quarry LP $496,500 0.21% 50,000
Warberg Asset Management LLC $496,500 0.21% 50,000
Stoic Point Capital Management LLC $496,500 0.21% 50,000
BOOTHBAY FUND MANAGEMENT, LLC $465,548 0.19% 46,883
BOOTHBAY FUND MANAGEMENT, LLC ARTCW $395,691 0.16% 39,848
ABC ARBITRAGE SA $350,350 0.15% 35,000
Kepos Capital LP $239,313 0.10% 24,100
Tuttle Capital Management, LLC $215,595 0.09% 21,538
Linden Advisors LP ARTCW $168,000 0.07% 400,000
Polar Asset Management Partners Inc. ARTCW $150,769 0.06% 381,500
HIGHBRIDGE CAPITAL MANAGEMENT LLC ARTCW $149,430 0.06% 403,864
ARISTEIA CAPITAL, L.L.C. ARTCW $148,955 0.06% 358,927
TENOR CAPITAL MANAGEMENT Co., L.P. ARTCW $148,200 0.06% 375,000
K2 PRINCIPAL FUND, L.P. ARTCW $135,296 0.06% 338,240
Magnetar Financial LLC ARTCW $110,000 0.05% 250,000
AQR Arbitrage LLC ARTCW $96,719 0.04% 261,402
LONGFELLOW INVESTMENT MANAGEMENT CO LLC ARTCU $83,529 0.03% 8,328
Alberta Investment Management Corp ARTCW $74,100 0.03% 187,500
SONA ASSET MANAGEMENT (US) LLC ARTCW $69,375 0.03% 187,500
Shaolin Capital Management LLC ARTCW $64,264 0.03% 162,612
Periscope Capital Inc. ARTCW $63,074 0.03% 159,600
BNP PARIBAS ARBITRAGE, SA ARTCW $59,712 0.02% 151,094
MILLENNIUM MANAGEMENT LLC ARTCW $59,280 0.02% 150,000
Clear Street Group Inc. ARTCW $55,712 0.02% 140,972
TORONTO DOMINION BANK ARTCW $39,461 0.02% 99,900
MMCAP International Inc. SPC ARTCW $34,807 0.01% 88,075
WOLVERINE ASSET MANAGEMENT LLC ARTCW $25,682 0.01% 64,985
PICTON MAHONEY ASSET MANAGEMENT ARTCW $19,760 0.01% 49,999
METEORA CAPITAL, LLC ARTCW $19,760 0.01% 50,000
Schonfeld Strategic Advisors LLC ARTCW $17,784 0.01% 45,000
Radcliffe Capital Management, L.P. ARTCW $12,799 0.01% 30,841
WHITEBOX ADVISORS LLC ARTCW $12,455 0.01% 31,516
RLH Capital LLC ARTCW $9,880 0.00% 25,000
RIVERNORTH CAPITAL MANAGEMENT, LLC ARTCW $8,503 0.00% 25,000
OSAIC HOLDINGS, INC. ARTCU $7,021 0.00% 700
Quarry LP ARTCW $4,940 0.00% 12,500
Bulldog Investors, LLP ARTCW $4,940 0.00% 12,500
MORGAN STANLEY $446 0.00% 45
Mint Tower Capital Management B.V. ARTCW $99 0.00% 250,000
GLAZER CAPITAL, LLC ARTCW $44 0.00% 112,097
Kepos Capital LP ARTCW $2 0.00% 6,025
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS ARTCW — — 62,500
Tuttle Capital Management, LLC ARTCU — — 26,923
SkyView Investment Advisors, LLC ARTCW — — 75,000
Context Capital Management, LLC ARTCW — — 125,000
Key facts CIK 2086545 CUSIP G0579E103 13F (30d) 2 filings 2 filers