HolderBook

ARCHIMEDES TECH SPAC PTNRS I (ARCI)

Institutional ownership reported to the SEC as of Q2 2026, across 5 quarters.

50
Reporting holders
$204.3M
Reported value
57.9%
Of shares outstanding
0.0%
Held as options
+13
Holder change

Institutions report 20,405,361 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.

Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.

Holders

FilerValueShares Their book Held Change
ADAGE CAPITAL PARTNERS GP, L.L.C.$18.0M1,800,0000.03%2qHELD
Verition Fund Management LLC$16.3M1,630,7100.04%2q+117.4%+$8.8M
Linden Advisors LP$12.0M1,200,0000.06%2qHELD
Magnetar Financial LLC$12.0M1,200,0000.11%2qHELD
Governors Lane LP$11.5M1,146,6100.96%2q+14.7%+$1.5M
TENOR CAPITAL MANAGEMENT Co., L.P.$10.0M1,000,0000.14%2qHELD
Alberta Investment Management Corp$10.0M1,000,0000.06%newNEW
SONA ASSET MANAGEMENT (US) LLC$8.0M800,0000.17%2qHELD
AQR Arbitrage LLC$7.6M757,6120.11%newNEW
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$5.5M550,0000.01%2qHELD
Shaolin Capital Management LLC$5.1M510,3860.24%2q-5.6%-$301.0K
RIVERNORTH CAPITAL MANAGEMENT, LLC$5.1M500,0000.24%newNEW
Radcliffe Capital Management, L.P.$5.1M504,6730.38%2q+21.8%+$904.7K
Polar Asset Management Partners Inc.$5.0M500,0000.08%2qHELD
MOORE CAPITAL MANAGEMENT, LP$5.0M500,0000.07%2qHELD
BNP PARIBAS FINANCIAL MARKETS$4.9M492,3720.00%newNEW
D. E. Shaw & Co., Inc.$4.5M450,5000.00%2q+6.0%+$255.3K
Meteora Capital, LLC$4.2M424,4890.35%2q-12.2%-$593.1K
Periscope Capital Inc.$4.1M409,0010.36%2qHELD
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS$4.0M400,0000.02%newNEW
K2 PRINCIPAL FUND, L.P.$3.1M308,3330.23%2q+2.9%+$88.1K
MMCAP International Inc. SPC$3.0M300,0000.25%newNEW
Hudson Bay Capital Management LP$3.0M300,0000.01%2qHELD
Schonfeld Strategic Advisors LLC$3.0M297,4040.01%newNEW
TWO SIGMA INVESTMENTS, LP$2.7M273,7910.00%2qHELD
HBK INVESTMENTS L P$2.5M250,0040.02%2qHELD
Ghisallo Capital Management LLC$2.5M250,0000.05%2qHELD
BERKLEY W R CORP$2.5M248,0000.12%2qHELD
683 Capital Management, LLC$2.0M200,0000.10%2qHELD
MANGROVE PARTNERS IM, LLC$2.0M200,0000.13%newNEW
First Trust Capital Management L.P.$2.0M200,0000.12%2qHELD
TORONTO DOMINION BANK$1.8M175,9160.00%2q+84.4%+$806.0K
DLD Asset Management, LP$1.7M170,0000.11%2qHELD
Wealthspring Capital LLC$1.6M160,9600.36%newNEW
MILLENNIUM MANAGEMENT LLC$1.5M150,0000.00%newNEW
PICTON MAHONEY ASSET MANAGEMENT$1.5M149,9960.01%newNEW
StoneX Group Inc.$1.5M150,3090.06%2q+37.0%+$404.4K
Clear Street Group Inc.$1.5M147,6100.00%2q-38.7%-$932.5K
WHITEBOX ADVISORS LLC$1.0M100,0000.01%2qHELD
Context Capital Management, LLC$1.0M100,0000.02%2qHELD
BOOTHBAY FUND MANAGEMENT, LLC$951.0K95,0000.01%newNEW
JPMORGAN CHASE & CO$876.6K87,6640.00%2qHELD
L1 Global Manager Pty Ltd$750.8K75,0000.53%2qHELD
Centiva Capital, LP$701.2K70,0500.01%newNEW
Bulldog Investors, LLP$645.6K64,5000.14%newNEW
DELTEC ASSET MANAGEMENT LLC$350.4K35,0000.05%2qHELD
ABC ARBITRAGE SA$350.4K35,0000.04%newNEW
WOLVERINE ASSET MANAGEMENT LLC$329.8K32,9470.00%2q+226.6%+$228.8K
Arax Advisory Partners$15.0K1,5000.00%newNEW
GLAZER CAPITAL, LLC$5.0K496,8090.12%2q-1.5%
Mint Tower Capital Management B.V.$1.5K150,0000.17%2qHELD
MORGAN STANLEY$240240.00%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.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202650$204.3M20,405,36116930.0%
Q1 202637$146.0M14,820,19737000.0%
Q2 20197$450.0K102,0846010.0%
Q1 20198$116.0K263,5013210.0%
Q4 20188$121.0K271,6641000.0%