| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BARCLAYS PLC | 3.9% | -40% | $11,899,392 | -$7,415,843 | 1,148,590 | -38% | Barclays PLC | 31 Dec 2025 |
As of 31 Dec 2025, 49 institutional investors reported holding 22,244,887 shares of Archimedes Tech SPAC Partners II Co. - COMMON-STOCK (ATII). This represents 75% of the company’s total 29,602,835 outstanding shares.
The largest institutional shareholders of Archimedes Tech SPAC Partners II Co. - COMMON-STOCK (ATII) together control 62% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| TENOR CAPITAL MANAGEMENT Co., L.P. | 5.1% | 1,500,000 | 0% | 0.22% | $15,540,000 |
| Magnetar Financial LLC | 4.4% | 1,300,000 | 0% | 0.13% | $13,468,000 |
| D. E. Shaw & Co., Inc. | 3.8% | 1,138,500 | 0% | 0.01% | $11,794,860 |
| Linden Advisors LP | 3.4% | 1,000,000 | 0% | 0.06% | $10,360,000 |
| AQR Arbitrage LLC | 3.3% | 964,382 | 0% | 0.21% | $9,990,998 |
| Westchester Capital Management, LLC | 3.1% | 907,144 | +0.79% | 0.44% | $9,398,012 |
| Glazer Capital, LLC | 2.9% | 864,303 | -1.2% | 0.24% | $8,954,000 |
| LMR Partners LLP | 2.9% | 850,000 | 0% | 0.08% | $8,806,000 |
| Ghisallo Capital Management LLC | 2.7% | 800,000 | 0% | 0.37% | $8,288,000 |
| Governors Lane LP | 2.6% | 758,617 | +1.1% | 0.73% | $7,859,272 |
| Alberta Investment Management Corp | 2.5% | 750,000 | 0% | 0.05% | $7,770,000 |
| TWO SIGMA INVESTMENTS, LP | 2.4% | 725,000 | 0% | 0.01% | $7,511,000 |
| METEORA CAPITAL, LLC | 2.4% | 718,433 | +11% | 0.62% | $7,442,966 |
| Hudson Bay Capital Management LP | 2.4% | 700,000 | 0% | 0.04% | $7,252,000 |
| Radcliffe Capital Management, L.P. | 2.2% | 658,322 | +7.7% | 0.37% | $6,820,216 |
| Sculptor Capital LP | 2% | 600,646 | -19% | 0.08% | $6,222,693 |
| Driehaus Capital Management LLC | 1.9% | 573,083 | 0% | 0.04% | $5,937,140 |
| PICTON MAHONEY ASSET MANAGEMENT | 1.7% | 500,000 | 0% | 0.06% | $5,180,000 |
| Jain Global LLC | 1.7% | 500,000 | 0% | 0.05% | $5,180,000 |
| MOORE CAPITAL MANAGEMENT, LP | 1.5% | 450,000 | 0% | 0.1% | $4,662,000 |
| Periscope Capital Inc. | 1.5% | 448,100 | -10% | 0.9% | $4,642,316 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 1.5% | 447,750 | +25% | 0.22% | $4,638,690 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 1.4% | 400,000 | 0% | 0.02% | $4,144,000 |
| WOLVERINE ASSET MANAGEMENT LLC | 1.2% | 355,354 | -22% | 0.05% | $3,681,467 |
| GOLDMAN SACHS GROUP INC | 1.1% | 323,854 | 0% | 0% | $3,355,127 |