Company Analysis

Archimedes Tech SPAC Partners II Co. (ATII)

ATII · Blank Checks · Claymont, DE · filing with the SEC since 2024
Grade5.4
◀ Past 5.3● Present 5.1▶ Future 5.8
8 est.

Who owns Archimedes Tech SPAC Partners II Co.

As filed with the SEC
Holders of 5% or more
0
No Schedule 13D or 13G naming this company is on file.
Directors and officers
0
report now, of 6 people on the record since 2025. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 0 named at left.
Holders of 5% or moreshare of the class, as filed
Tenor Capital Management Company, L.P.
SCHEDULE 13G/A · filed Aug 14, 2026 · Ordinary shares, $0.0001 Par Value · reported falling below 5%, from 5.1% in Nov 7, 2025
under 5%
Sculptor Capital LP
SCHEDULE 13G/A · filed Aug 14, 2025 · Class A Ordinary Shares, par value $0.0001 per share · reported falling below 5%, from 5.05% in Feb 19, 2025
under 5%
Barclays PLC
SCHEDULE 13G/A · filed Feb 11, 2026 · COMMON-STOCK · reported falling below 5%, from 6.3% in Aug 12, 2025
under 5%
What ATII reports owning in othersstakes of 5% or more, and other ties

3 subsidiaries in 1 country, from the list filed with the 10-K filed Mar 4, 2026.

Insider tradesForm 4
0sales
0purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
No open-market trade is on the record for these years.
2025 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window
No one on the roster filed an open-market trade in the window.
SI Assistanton ATII · research, not advice