Tamarly Intelligence

Who Holds Archimedes Tech SPAC Partners II Co. (ATII)? 50 Institutional Holders, Q2 2026

Managers with more than $100 million in US equities report their holdings on Form 13F within 45 days of each quarter end. Quarter ended 30 Jun 2026: 50 holders, $180 million in total.

Largest holders

The 50 largest by value. Change in shares against Q1 2026.

ManagerSharesValueChange
TENOR CAPITAL MANAGEMENT Co., L.P.1,367,830$15 million-9%13F
Fort Baker Capital Management LP1,330,746$14 millionNew13F
Magnetar Financial LLC1,297,302$14 million0%13F
D. E. Shaw & Co., Inc.1,138,500$12 million+0%13F
Decagon Asset Management LLP937,829$10 millionNew13F
Linden Advisors LP848,273$9 million-15%13F
Ghisallo Capital Management LLC800,000$9 million+0%13F
TWO SIGMA INVESTMENTS, LP725,000$8 million+0%13F
Hudson Bay Capital Management LP700,000$8 million+0%13F
Shay Capital LLC623,687$7 millionNew13F
Governors Lane LP604,857$7 million-20%13F
AQR Arbitrage LLC590,262$6 million-36%13F
Sculptor Capital LP552,619$6 million-8%13F
K2 PRINCIPAL FUND, L.P.526,227$6 million+499%13F
LMR Partners LLP478,978$5 million-44%13F
Radcliffe Capital Management, L.P.478,061$5 million-28%13F
MOORE CAPITAL MANAGEMENT, LP450,000$5 million+0%13F
Alberta Investment Management Corp400,000$4 million-47%13F
CITADEL ADVISORS LLC250,266$3 million+2312%13F
WHITEBOX ADVISORS LLC250,000$3 million+0%13F
Harraden Circle Investments, LLC234,661$3 millionNew13F
GOLDMAN SACHS GROUP INC205,090$2 million-37%13F
L1 Global Manager Pty Ltd200,000$2 million+0%13F
ARISTEIA CAPITAL, L.L.C.200,000$2 million-20%13F
DLD Asset Management, LP195,453$2 million+30%13F
Jain Global LLC185,108$2 million-63%13F
Periscope Capital Inc.175,000$2 million-50%13F
Verition Fund Management LLC140,797$2 million-39%13F
MMCAP International Inc. SPC125,000$1 million+0%13F
TUDOR INVESTMENT CORP ET AL123,842$1 millionNew13F
CANTOR FITZGERALD, L. P.88,283$951,691New13F
TORONTO DOMINION BANK82,550$889,889-87%13F
Baird Financial Group, Inc.78,500$846,230+0%13F
Shaolin Capital Management LLC76,171$821,123-72%13F
MILLENNIUM MANAGEMENT LLC69,384$747,960-77%13F
Schonfeld Strategic Advisors LLC50,000$539,000-71%13F
Clear Street Group Inc.25,000$269,500-68%13F
BNP PARIBAS FINANCIAL MARKETS23,790$256,456-37%13F
MIZUHO SECURITIES USA LLC19,469$202,478+0%13F
HIGHBRIDGE CAPITAL MANAGEMENT LLC17,497$189,143New13F
READYSTATE ASSET MANAGEMENT LP12,528$135,052-92%13F
GEODE CAPITAL MANAGEMENT, LLC11,102$119,679+0%13F
EverSource Wealth Advisors, LLC8,500$91,630New13F
UBS Group AG1,658$17,873New13F
FNY Investment Advisers, LLC327,200$3,527New13F
Mint Tower Capital Management B.V.300,000$3,234+0%13F
GLAZER CAPITAL, LLC50,100$540-93%13F
HRT FINANCIAL LP47,190$508New13F
MORGAN STANLEY35$377-44%13F
Caitong International Asset Management Co., Ltd4$43New13F

Questions and answers

How many institutions hold Archimedes Tech SPAC Partners II Co.?
50 managers reported Archimedes Tech SPAC Partners II Co. on Form 13F for the quarter ended 30 June 2026, against 54 the quarter before.
Who is the largest institutional holder of Archimedes Tech SPAC Partners II Co.?
TENOR CAPITAL MANAGEMENT Co., L.P., with 1,367,830 shares worth $15 million on its 13F for Q2 2026.
How many institutions bought or sold out of Archimedes Tech SPAC Partners II Co. in Q2 2026?
12 managers reported a new position and 16 reported none after holding it the quarter before.
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Source: SEC EDGAR, Form 13F (public domain). Counts and values as filed. Cite this page: Tamarly Intelligence, "Who holds Archimedes Tech SPAC Partners II Co., Q2 2026", https://app.tamarly.ai/holders/archimedes-tech-spac-partners-ii, built from SEC EDGAR.

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Who Holds Archimedes Tech SPAC Partners II Co. (ATII)? 50 Institutional Holders, Q2 2026 | Tamarly