ATIIW · Archimedes Tech SPAC Partners II Co. · Shareholders & Ownership
Substantial doubt about the company's ability to continue as a going concern.
“In connection with the Company's assessment of going concern considerations in accordance with FASB ASC 2014-15, "Disclosures of Uncertainties about an Entity's Ability to Continue as a Going Concern," management has determined that the Company currently lacks the liquidity it needs to sustain operations for a reasonable period of time, which is considered to be at least one year from the date that the unaudited condensed consolidated financial statements are issued as it expects to continue to incur significant costs in pursuit of its acquisition plans. In addition, if the Company is unable to complete an initial business combination by November 12, 2026, then the Company will cease all operations except for the purpose of liquidating. The date for mandatory liquidation and subsequent dissolution and liquidity concerns raise substantial doubt about the Company's ability to continue as a going concern. Management plans to consummate an initial business combination prior to the mandatory liquidation date. No adjustments have been made to the carrying amounts of assets or liabilities should the Company be required to liquidate after November 12, 2026.”View the 10-Q filed Aug 13, 2026
Every disclosed holder of ATIIW 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.
Who Owns ATIIW
13F quarter Jun 30, 2026; this listing alone: insiders and shares outstanding are issuer-wide, so they are left outNo chart: shares outstanding cannot be set against these holders.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 8,366,999 | — |
| Insiders (Forms 3, 4, 5) | 0 | — |
| 13D/G-only blocks | 0 | — |
| Registered funds (N-PORT, not summed) | 0 | — |
% Out is unavailable: shares outstanding is an issuer-wide count, not one listing's.
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 ATIIW
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Harraden Circle Investments, LLC
13F
CIK 1910592 · Registered investment adviser · Jun 30, 2026
|
1,131,600 | ||
| 2 |
ARISTEIA CAPITAL, L.L.C.
13F
CIK 1080171 · Registered investment adviser · Jun 30, 2026
|
788,491 | ||
| 3 |
TENOR CAPITAL MANAGEMENT Co., L.P.
13F
CIK 1346554 · Registered investment adviser · Jun 30, 2026
|
750,000 | ||
| 4 |
LMR Partners LLP
13F
CIK 1578621 · Exempt reporting adviser · Jun 30, 2026
|
613,701 | ||
| 5 |
Linden Advisors LP
13F
CIK 1279396 · Registered investment adviser · Jun 30, 2026
|
504,138 | ||
| 6 |
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
13F
CIK 1535845 · Non-US institution · Jun 30, 2026
|
500,000 | ||
| 7 |
AQR Arbitrage LLC
13F
CIK 1167456 · Registered investment adviser · Jun 30, 2026
|
481,366 | ||
| 8 |
Magnetar Financial LLC
13F
CIK 1352851 · Registered investment adviser · Jun 30, 2026
|
437,600 | ||
| 9 |
Alberta Investment Management Corp
13F
CIK 1463559 · Non-US institution · Jun 30, 2026
|
375,000 | ||
| 10 |
Decagon Asset Management LLP
13F
CIK 1950677 · Unknown · Jun 30, 2026
|
331,302 | ||
| 11 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
|
287,500 | ||
| 12 |
K2 PRINCIPAL FUND, L.P.
13F
CIK 1461790 · Unknown · Jun 30, 2026
|
280,718 | ||
| 13 |
MOORE CAPITAL MANAGEMENT, LP
13F
CIK 1448574 · Registered investment adviser · Jun 30, 2026
|
225,000 | ||
| 14 |
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F
CIK 1447578 · Registered investment adviser · Jun 30, 2026
|
224,942 | ||
| 15 |
Shaolin Capital Management LLC
13F
CIK 1766806 · Registered investment adviser · Jun 30, 2026
|
181,640 | ||
| 16 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
|
161,927 | ||
| 17 |
CSS LLC/IL
13F
CIK 1103646 · Unknown · Jun 30, 2026
|
151,718 | ||
| 18 |
Sculptor Capital LP
13F
CIK 1054587 · Registered investment adviser · Jun 30, 2026
|
150,200 | ||
| 19 |
Mint Tower Capital Management B.V.
13F
CIK 1666606 · Unknown · Jun 30, 2026
|
130,000 | ||
| 20 |
WHITEBOX ADVISORS LLC
13F
CIK 1257391 · Registered investment adviser · Jun 30, 2026
|
125,000 | ||
| 21 |
Alpine Global Management, LLC
13F
CIK 1581655 · Unknown · Jun 30, 2026
|
71,039 | ||
| 22 |
DLD Asset Management, LP
13F
CIK 1578299 · Registered investment adviser · Jun 30, 2026
|
69,400 | ||
| 23 |
MMCAP International Inc. SPC
13F
CIK 1304857 · Unknown · Jun 30, 2026
|
62,500 | ||
| 24 |
Clear Street Group Inc.
13F
CIK 1881567 · Unknown · Jun 30, 2026
|
60,000 | ||
| 25 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
|
48,825 | ||
| 26 |
Fort Baker Capital Management LP
13F
CIK 1688382 · Registered investment adviser · Jun 30, 2026
|
41,177 | ||
| 27 |
Periscope Capital Inc.
13F
CIK 1695320 · Exempt reporting adviser · Jun 30, 2026
|
40,000 | ||
| 28 |
Hudson Bay Capital Management LP
13F
CIK 1393825 · Registered investment adviser · Jun 30, 2026
|
39,994 | ||
| 29 |
Lineage Point Capital LP
13F
CIK 2093311 · Investment adviser · Jun 30, 2026
|
35,771 | ||
| 30 |
Centiva Capital, LP
13F
CIK 1692507 · Registered investment adviser · Jun 30, 2026
|
31,450 | ||
| 31 |
Schonfeld Strategic Advisors LLC
13F
CIK 1665241 · Registered investment adviser · Jun 30, 2026
|
30,000 | ||
| 32 |
Thomas J. Herzfeld Advisors, Inc.
13F
CIK 1509510 · Registered investment adviser · Jun 30, 2026
|
5,000 |
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.