Comparable stake leader
Art Technology Sponsor, LLC
SEC ownership of Art Technology Acquisition Corp.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002086545.
Disclosed value leader
LINDEN ADVISORS LP
Comparable rows
32/50
Latest evidence
31 Mar 2026
- Public ticker
- ARTC, ARTCU, ARTCW on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Art Technology Sponsor, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
32 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Art Technology Sponsor, LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002086545
- Issuer location
- Philadelphia, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Art Technology Acquisition Corp. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Art Technology Sponsor, LLC
Disclosed value leader
LINDEN ADVISORS LP
Comparable rows
32/50
Latest evidence
31 Mar 2026
3/4/5
13D/G
13F
Lead comparable stake: 29%
18 rows are not safely comparable across share classes.
13D/G row: Art Technology Sponsor, LLC
Showing 1-8 of 50 holder rows.
Quick read
Art Technology Sponsor, LLC leads the comparable SEC ownership view at 29%.
32 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Art Technology Sponsor, LLC's linked filing trail.
Comparable ownership
Top 5
Art Technology Sponsor, LLC
29%
Linden Capital L.P.
7%
TENOR CAPITAL MANAGEMENT Co., L.P.
6.6%
HIGHBRIDGE CAPITAL MANAGEMENT LLC
5.7%
Polar Asset Management Partners Inc.
5.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Art Technology Sponsor, LLC |
3/4/5
13D/G
10%+ Owner · Daniel G. Cohen
|
29%
from 13D/G
|
—
530,000 shares
|
— | 05 Jan 2026 |
| Linden Capital L.P. |
13D/G
|
7%
|
—
1,600,000 shares
|
$0 | 08 Jan 2026 |
| TENOR CAPITAL MANAGEMENT Co., L.P. |
13F
13D/G
Company · Tenor Capital Management Company, L.P.
|
6.6%
from 13D/G
|
$14,828,213
1,875,000 shares
mixed-class rows
|
— | 31 Mar 2026 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC |
13F
13D/G
Company
|
5.7%
from 13D/G
|
$15,024,300
1,540,000 shares
mixed-class rows
|
— | 31 Mar 2026 |
| Polar Asset Management Partners Inc. |
13D/G
13F
Company
|
5.7%
|
$14,850,000
1,500,000 shares
|
$0 | 31 Mar 2026 |
| ARISTEIA CAPITAL, L.L.C. |
13D/G
13F
Company
|
5.5%
|
$14,213,598
1,435,717 shares
|
$0 | 31 Mar 2026 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
2.3%
|
$5,940,000
600,000 shares
|
— | 31 Mar 2026 |
| LMR Partners LLP |
13F
Company
|
1.9%
|
$4,950,000
500,000 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 05 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-9 of 9 reporting-owner rows connected to Art Technology Acquisition Corp.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
9
Largest Forms 3/4/5 holder
Katherine E. Fleming
Net 12M change
$0
Latest report
18 Feb 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Katherine E. Fleming | Director | Mixed | 05 Jan 2026 | |||
| Emmanuelle Cohen | Chief Operating Officer | Mixed | 05 Jan 2026 | |||
| Phoebe A. Saatchi | Director | Mixed | 05 Jan 2026 | |||
| Art Technology Sponsor, LLC | 10%+ Owner | Mixed | 05 Jan 2026 | |||
| Daniel G. Cohen | Chief Executive Officer, Director, 10%+ Owner | Mixed | 05 Jan 2026 | |||
| Robert M. Smeal | Chief Financial Officer | Mixed | 05 Jan 2026 | |||
| Beach Walter T | Director | Mixed | 05 Jan 2026 | |||
| Daniella B. Loftus | Director | Mixed | 18 Feb 2026 | |||
| Yassir Benjelloun-Touimi | Director | Mixed | 05 Jan 2026 |
Recent insider transactions for Art Technology Acquisition Corp.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Daniel G. Cohen | ARTC | Class A Ordinary Shares | 0 | 530,000 | 05 Jan 2026 | By Art Technology Sponsor, LLC | ||||
| Art Technology Sponsor, LLC | ARTC | Class A Ordinary Shares | 0 | 530,000 | 05 Jan 2026 | Direct |
* marks a reported price that did not pass the local price check.