Archimedes Tech SPAC Partners II Co. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| TENOR CAPITAL MANAGEMENT CO., L.P. | 02/17/2026 | 1.50 M | $15.54 M | 0.00% | 6.52% |
| MAGNETAR FINANCIAL LLC | 02/17/2026 | 1.30 M | $13.47 M | 0.00% | 5.65% |
| D. E. SHAW & CO., INC. | 02/17/2026 | 1.14 M | $11.79 M | 0.00% | 4.95% |
| LINDEN ADVISORS LP | 02/17/2026 | 1.00 M | $10.36 M | 0.00% | 4.35% |
| AQR ARBITRAGE LLC | 02/17/2026 | 964.38 K | $9.99 M | 0.00% | 4.19% |
| WESTCHESTER CAPITAL MANAGEMENT, LLC | 02/13/2026 | 907.14 K | $9.40 M | 0.79% | 3.94% |
| GLAZER CAPITAL, LLC | 02/13/2026 | 864.30 K | $8.95 M | -1.23% | 3.76% |
| LMR PARTNERS LLP | 02/17/2026 | 850.00 K | $8.81 M | 0.00% | 3.70% |
| GHISALLO CAPITAL MANAGEMENT LLC | 02/17/2026 | 800.00 K | $8.29 M | 0.00% | 3.48% |
| GOVERNORS LANE LP | 02/17/2026 | 758.62 K | $7.86 M | 1.15% | 3.30% |
| ALBERTA INVESTMENT MANAGEMENT CORP | 02/19/2026 | 750.00 K | $7.77 M | 0.00% | 3.26% |
| TWO SIGMA INVESTMENTS, LP | 02/17/2026 | 725.00 K | $7.51 M | 0.00% | 3.15% |
| METEORA CAPITAL, LLC | 02/17/2026 | 718.43 K | $7.44 M | 10.55% | 3.12% |
| HUDSON BAY CAPITAL MANAGEMENT LP | 02/13/2026 | 700.00 K | $7.25 M | 0.00% | 3.04% |
| RADCLIFFE CAPITAL MANAGEMENT, L.P. | 02/17/2026 | 658.32 K | $6.82 M | 7.65% | 2.86% |
| SCULPTOR CAPITAL LP | 02/13/2026 | 600.65 K | $6.22 M | -18.83% | 2.61% |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 02/17/2026 | 573.08 K | $5.94 M | 0.00% | 2.49% |
| PICTON MAHONEY ASSET MANAGEMENT | 02/11/2026 | 500.00 K | $5.18 M | 0.00% | 2.17% |
| JAIN GLOBAL LLC | 02/17/2026 | 500.00 K | $5.18 M | 0.00% | 2.17% |
| MOORE CAPITAL MANAGEMENT, LP | 02/17/2026 | 450.00 K | $4.66 M | 0.00% | 1.96% |
| PERISCOPE CAPITAL INC. | 02/10/2026 | 448.10 K | $4.64 M | -10.38% | 1.95% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 02/17/2026 | 447.75 K | $4.64 M | 25.16% | 1.95% |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 02/10/2026 | 400.00 K | $4.14 M | 0.00% | 1.74% |
| WOLVERINE ASSET MANAGEMENT LLC | 02/02/2026 | 355.35 K | $3.68 M | -22.13% | 1.55% |
| GOLDMAN SACHS GROUP INC | 03/25/2026 | 323.85 K | $3.36 M | 0.00% | 1.41% |
| MILLENNIUM MANAGEMENT LLC | 02/17/2026 | 307.99 K | $3.19 M | 1.32% | 1.34% |
| MIZUHO SECURITIES USA LLC | 02/09/2026 | 303.83 K | $3.11 M | -9.33% | 1.32% |
| MINT TOWER CAPITAL MANAGEMENT B.V. | 02/12/2026 | 300.00 K | $3.11 M | 0.00% | 1.30% |
| CENTIVA CAPITAL, LP | 02/13/2026 | 285.52 K | $2.96 M | 0.00% | 1.24% |
| SHAOLIN CAPITAL MANAGEMENT LLC | 02/17/2026 | 270.78 K | $2.81 M | 35.39% | 1.18% |
| ARISTEIA CAPITAL LLC | 02/17/2026 | 250.00 K | $2.59 M | 0.00% | 1.09% |
| WHITEBOX ADVISORS LLC | 02/17/2026 | 250.00 K | $2.59 M | 0.00% | 1.09% |
| VERITION FUND MANAGEMENT LLC | 02/13/2026 | 231.47 K | $2.40 M | -7.95% | 1.01% |
| BERKLEY W R CORP | 02/13/2026 | 228.21 K | $2.36 M | 0.00% | 0.99% |
| UBS OCONNOR LLC | 02/13/2026 | 200.00 K | $2.07 M | 0.00% | 0.87% |
| DLD ASSET MANAGEMENT, LP | 02/13/2026 | 200.00 K | $2.07 M | 33.33% | 0.87% |
| 02/13/2026 | 200.00 K | $2.07 M | 100.00% | 0.87% | |
| SCHONFELD STRATEGIC ADVISORS LLC | 02/17/2026 | 173.52 K | $1.80 M | -21.72% | 0.75% |
| TORONTO DOMINION BANK | 02/17/2026 | 150.00 K | $1.55 M | 0.00% | 0.65% |
| READYSTATE ASSET MANAGEMENT LP | 02/17/2026 | 147.53 K | $1.53 M | 0.00% | 0.64% |
| MMCAP INTERNATIONAL INC. SPC | 02/09/2026 | 125.00 K | $1.30 M | 0.00% | 0.54% |
| GRITSTONE ASSET MANAGEMENT LLC | 01/23/2026 | 99.08 K | $1.03 M | 0.00% | 0.43% |
| K2 PRINCIPAL FUND, L.P. | 02/13/2026 | 87.90 K | $910.64 K | -22.67% | 0.38% |
| BAIRD FINANCIAL GROUP, INC. | 02/13/2026 | 78.50 K | $813.26 K | 100.00% | 0.34% |
| CSS LLC/IL | 02/17/2026 | 57.14 K | $592.00 K | 14.29% | 0.25% |
| STONEX GROUP INC. | 02/12/2026 | 50.61 K | $524.35 K | 100.00% | 0.22% |
| WARBERG ASSET MANAGEMENT LLC | 02/13/2026 | 10.00 K | $103.60 K | 0.00% | 0.04% |
| CLEAR STREET GROUP INC. | 02/13/2026 | 4.20 K | $43.46 K | -85.63% | 0.02% |
| MORGAN STANLEY | 02/13/2026 | 130 | $1.35 K | 154.90% | 0.00% |
| DLD ASSET MANAGEMENT, LP | 02/13/2026 | 0 | $0 | -100.00% | 0.00% |
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Archimedes Tech SPAC Partners II Co. institutional Ownership - FAQ's
During the previous two years, 45 institutional investors and hedge funds held shares of Archimedes Tech SPAC Partners II Co.. The most heavily invested institutionals were:
TENOR CAPITAL MANAGEMENT Co., L.P.: 1.5 M
Magnetar Financial LLC: 1.3 M
D. E. Shaw & Co., Inc.: 1.14 M
LINDEN ADVISORS LP: 1,000,000
AQR Arbitrage LLC: 964,382
Westchester Capital Management, LLC: 907,144
96.72% of Archimedes Tech SPAC Partners II Co. stock is owned by institutional investors.
Institutional investors have bought a total of 20.28 M shares in the last 24 months. This purchase volume represents approximately $211.69 M in transactions.