ARCHIMEDES TECH SPAC PTNRS I (ARCI)
Institutional ownership reported to the SEC as of Q2 2026, across 5 quarters.
Institutions report 21,302,174 shares against 35,262,000 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $18.0M | 1,800,000 | 0.03% | 2q | HELD |
| Verition Fund Management LLC | $16.3M | 1,630,710 | 0.04% | 2q | +117.4%+$8.8M |
| Linden Advisors LP | $12.0M | 1,200,000 | 0.06% | 2q | HELD |
| Magnetar Financial LLC | $12.0M | 1,200,000 | 0.11% | 2q | HELD |
| Governors Lane LP | $11.5M | 1,146,610 | 0.96% | 2q | +14.7%+$1.5M |
| TENOR CAPITAL MANAGEMENT Co., L.P. | $10.0M | 1,000,000 | 0.14% | 2q | HELD |
| Alberta Investment Management Corp | $10.0M | 1,000,000 | 0.06% | new | NEW |
| SONA ASSET MANAGEMENT (US) LLC | $8.0M | 800,000 | 0.17% | 2q | HELD |
| AQR Arbitrage LLC | $7.6M | 757,612 | 0.11% | new | NEW |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $5.5M | 550,000 | 0.01% | 2q | HELD |
| Shaolin Capital Management LLC | $5.1M | 510,386 | 0.24% | 2q | -5.6%-$301.0K |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | $5.1M | 500,000 | 0.24% | new | NEW |
| Radcliffe Capital Management, L.P. | $5.1M | 504,673 | 0.38% | 2q | +21.8%+$904.7K |
| HBK INVESTMENTS L P | $5.0M | 500,008 | 0.02% | 2q | +100.0%+$2.5M |
| Polar Asset Management Partners Inc. | $5.0M | 500,000 | 0.08% | 2q | HELD |
| MOORE CAPITAL MANAGEMENT, LP | $5.0M | 500,000 | 0.07% | 2q | HELD |
| GLAZER CAPITAL, LLC | $5.0M | 496,809 | 0.12% | 2q | -1.5%-$78.0K |
| BNP PARIBAS FINANCIAL MARKETS | $4.9M | 492,372 | 0.00% | new | NEW |
| D. E. Shaw & Co., Inc. | $4.5M | 450,500 | 0.00% | 2q | +6.0%+$255.3K |
| Meteora Capital, LLC | $4.2M | 424,489 | 0.35% | 2q | -12.2%-$593.1K |
| Periscope Capital Inc. | $4.1M | 409,001 | 0.36% | 2q | HELD |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $4.0M | 400,000 | 0.02% | new | NEW |
| K2 PRINCIPAL FUND, L.P. | $3.1M | 308,333 | 0.23% | 2q | +2.9%+$88.1K |
| MMCAP International Inc. SPC | $3.0M | 300,000 | 0.25% | new | NEW |
| Hudson Bay Capital Management LP | $3.0M | 300,000 | 0.01% | 2q | HELD |
| Schonfeld Strategic Advisors LLC | $3.0M | 297,404 | 0.01% | new | NEW |
| TWO SIGMA INVESTMENTS, LP | $2.7M | 273,791 | 0.00% | 2q | HELD |
| Ghisallo Capital Management LLC | $2.5M | 250,000 | 0.05% | 2q | HELD |
| BERKLEY W R CORP | $2.5M | 248,000 | 0.12% | 2q | HELD |
| 683 Capital Management, LLC | $2.0M | 200,000 | 0.10% | 2q | HELD |
| MANGROVE PARTNERS IM, LLC | $2.0M | 200,000 | 0.13% | new | NEW |
| First Trust Capital Management L.P. | $2.0M | 200,000 | 0.12% | 2q | HELD |
| TORONTO DOMINION BANK | $1.8M | 175,916 | 0.00% | 2q | +84.4%+$806.0K |
| DLD Asset Management, LP | $1.7M | 170,000 | 0.11% | 2q | HELD |
| Wealthspring Capital LLC | $1.6M | 160,960 | 0.36% | new | NEW |
| Mint Tower Capital Management B.V. | $1.5M | 150,000 | 0.17% | 2q | HELD |
| MILLENNIUM MANAGEMENT LLC | $1.5M | 150,000 | 0.00% | new | NEW |
| PICTON MAHONEY ASSET MANAGEMENT | $1.5M | 149,996 | 0.01% | new | NEW |
| StoneX Group Inc. | $1.5M | 150,309 | 0.06% | 2q | +37.0%+$404.4K |
| Clear Street Group Inc. | $1.5M | 147,610 | 0.00% | 2q | -38.7%-$932.5K |
| WHITEBOX ADVISORS LLC | $1.0M | 100,000 | 0.01% | 2q | HELD |
| Context Capital Management, LLC | $1.0M | 100,000 | 0.02% | 2q | HELD |
| BOOTHBAY FUND MANAGEMENT, LLC | $951.0K | 95,000 | 0.01% | new | NEW |
| JPMORGAN CHASE & CO | $876.6K | 87,664 | 0.00% | 2q | HELD |
| L1 Global Manager Pty Ltd | $750.8K | 75,000 | 0.53% | 2q | HELD |
| Centiva Capital, LP | $701.2K | 70,050 | 0.01% | new | NEW |
| Bulldog Investors, LLP | $645.6K | 64,500 | 0.14% | new | NEW |
| DELTEC ASSET MANAGEMENT LLC | $350.4K | 35,000 | 0.05% | 2q | HELD |
| ABC ARBITRAGE SA | $350.4K | 35,000 | 0.04% | new | NEW |
| WOLVERINE ASSET MANAGEMENT LLC | $329.8K | 32,947 | 0.00% | 2q | +226.6%+$228.8K |
| Arax Advisory Partners | $15.0K | 1,500 | 0.00% | new | NEW |
| MORGAN STANLEY | $240 | 24 | 0.00% | 2q | +41.2% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 52 | $213.3M | 21,302,174 | 16 | 10 | 4 | 0.0% |
| Q1 2026 | 40 | $153.3M | 15,565,533 | 40 | 0 | 0 | 0.0% |
| Q2 2019 | 7 | $450.0K | 102,084 | 6 | 0 | 1 | 0.0% |
| Q1 2019 | 8 | $116.0K | 263,501 | 3 | 2 | 1 | 0.0% |
| Q4 2018 | 8 | $121.0K | 271,664 | 1 | 0 | 0 | 0.0% |