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ATIIU · Archimedes Tech SPAC Partners II Co. · Shareholders & Ownership

Track ATIIU — free
$8.20 At close · Oct 21
Market Cap
$290.28M
Shares
29.59M
Volume · Oct 21 1443 Avg daily vol (25 sessions) 3506

Every disclosed holder of ATIIU 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 ATIIU

13F quarter Jun 30, 2026; this listing alone: insiders and shares outstanding are issuer-wide, so they are left out

No chart: shares outstanding cannot be set against these holders.

Holder group Shares % Out
Institutional (13F) 110,365 —
Insiders (Forms 3, 4, 5) 0 —
13D/G-only blocks 2,667,830 —
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 ATIIU

# Holder Shares
1
TENOR CAPITAL MANAGEMENT Co., L.P.
13G CIK 1346554 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(c), passive investor
1,367,830
2
Sculptor Capital LP
13G CIK 1054587 · Registered investment adviser · Jun 30, 2025
Rule 13d-1(c), passive investor
1,300,000
3
JPMORGAN CHASE & CO
13F CIK 19617 · Bank · Jun 30, 2026
49,000
4
JANE STREET GROUP, LLC
13F CIK 1595888 · Unknown · Jun 30, 2026
45,049
5
Clear Street Group Inc.
13F CIK 1881567 · Unknown · Jun 30, 2026
14,164
6
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
2,152

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.

Key facts CIK 2028516 CUSIP G04537109 Visit website Investor relations