Who Owns ATII?
Archimedes Tech SPAC Partners II Co. Ordinary Shares — Institutional Ownership & 13F Holdings
$10.57
-0.11 (-1.03%)
Market Cap
$314.2M
Shares Outstanding
29,590,000
Institutional Holders
44
Total Inst. Value
$1.8B
% of Float Held
88.3%
QoQ Holder Change
—
Institutional data as of Q1 2025
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | CLEAR STREET LLC | $1.7B | 166,517 |
| 2 | AQR Arbitrage LLC | $13.1M | 1,303,242 |
| 3 | Magnetar Financial LLC | $13.1M | 1,300,000 |
| 4 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $10.1M | 1,000,000 |
| 5 | LMR Partners LLP | $8.6M | 850,000 |
| 6 | GLAZER CAPITAL, LLC | $8.5M | 839,370 |
| 7 | CSS LLC/IL | $8.3M | 820,803 |
| 8 | Ghisallo Capital Management LLC | $8.1M | 800,000 |
| 9 | Shaolin Capital Management LLC | $6.6M | 650,531 |
| 10 | MIZUHO SECURITIES USA LLC | $6.0M | 600,000 |
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Frequently Asked Questions
How many institutional investors hold ATII?
As of Q1 2025, 44 institutional investors report holding ATII (Archimedes Tech SPAC Partners II Co. Ordinary Shares) in their 13F filings.
What percentage of Archimedes Tech SPAC Partners II Co. Ordinary Shares is owned by institutions?
Institutional investors hold approximately 88.3% of Archimedes Tech SPAC Partners II Co. Ordinary Shares's float as reported in SEC 13F filings.
Which hedge fund owns the most ATII?
The largest institutional holder of ATII is CLEAR STREET LLC with $1.7B in shares.
Are institutions buying or selling ATII?
This quarter, 44 institutions opened new positions in ATII and 0 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.