ARCI
Archimedes Tech SPAC Partners III Co.Company with tickers: ARCI, ARCIU, ARCIW
CIK
2083910
CUSIP
G0453R105
Shares Outstanding
35,262,000
13F Activity (30d)
39 filings
39 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 40
Total Value: $153,320,492
Total Shares: 15,565,533
Holder Concentration
Across 40 13F filersTop Holder
11.6%
of institutional value
Top 5
39.8%
of institutional value
Top 10
60.0%
of institutional value
HHI
501
Broadly held
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Large ADAGE CAPITAL PARTNERS GP, L.L.C. | $17,730,000 | 11.56% | 1,800,000 | Shares | Sole | 2026-05-15 | ||||
| Mid Magnetar Financial LLC | $11,820,000 | 7.71% | 1,200,000 | Shares | Sole | 2026-05-13 | ||||
| Mid Linden Advisors LP | $11,820,000 | 7.71% | 1,200,000 | Shares | Sole | 2026-05-15 | ||||
| Mid Governors Lane LP | $9,850,000 | 6.42% | 1,000,000 | Shares | Sole | 2026-05-15 | ||||
| Mid TENOR CAPITAL MANAGEMENT Co., L.P. | $9,850,000 | 6.42% | 1,000,000 | Shares | Sole | 2026-05-15 | ||||
| Mid SONA ASSET MANAGEMENT (US) LLC | $7,880,000 | 5.14% | 800,000 | Shares | Other | 2026-05-15 | ||||
| Large Verition Fund Management LLC | $7,387,500 | 4.82% | 750,000 | Shares | Sole | 2026-05-15 | ||||
| Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Pension | $5,417,500 | 3.53% | 550,000 | Shares | Sole | 2026-05-14 | ||||
| Small Shaolin Capital Management LLC | $5,323,471 | 3.47% | 540,454 | Shares | Sole | 2026-05-15 | ||||
| Mid GLAZER CAPITAL, LLC | $4,970,329 | 3.24% | 504,602 | Shares | Sole | 2026-05-14 | ||||
| Mid Polar Asset Management Partners Inc. | $4,925,000 | 3.21% | 500,000 | Shares | Sole | 2026-05-15 | ||||
| Mid MOORE CAPITAL MANAGEMENT, LP | $4,925,000 | 3.21% | 500,000 | Shares | Sole | 2026-05-15 | ||||
| Mid METEORA CAPITAL, LLC | $4,764,839 | 3.11% | 483,740 | Shares | Defined | 2026-05-15 | ||||
| Mega D. E. Shaw & Co., Inc. | $4,186,250 | 2.73% | 425,000 | Shares | Defined | 2026-05-15 | ||||
| Small Radcliffe Capital Management, L.P. | $4,080,825 | 2.66% | 414,297 | Shares | Sole | 2026-05-15 | ||||
| Small Periscope Capital Inc. | $4,028,659 | 2.63% | 409,001 | Shares | Sole | 2026-05-14 | ||||
| Large Hudson Bay Capital Management LP | $2,955,000 | 1.93% | 300,000 | Shares | Sole | 2026-05-13 | ||||
| Small K2 PRINCIPAL FUND, L.P. | $2,950,429 | 1.92% | 299,536 | Shares | Sole | 2026-05-14 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $2,696,841 | 1.76% | 273,791 | Shares | Sole | 2026-05-15 | ||||
| Mid HBK INVESTMENTS L P | $2,462,539 | 1.61% | 250,004 | Shares | Sole | 2026-05-15 | ||||
| Mid Ghisallo Capital Management LLC | $2,462,500 | 1.61% | 250,000 | Shares | Sole | 2026-05-15 | ||||
| Mid BERKLEY W R CORP | $2,442,800 | 1.59% | 248,000 | Shares | Sole | 2026-05-15 | ||||
| Large Clear Street Group Inc. | $2,371,515 | 1.55% | 240,763 | Shares | Sole | 2026-05-15 | ||||
| Mid First Trust Capital Management L.P. | $1,970,000 | 1.28% | 200,000 | Shares | Sole | 2026-05-14 | ||||
| Mid 683 Capital Management, LLC | $1,970,000 | 1.28% | 200,000 | Shares | Defined | 2026-05-15 | ||||
| Small DLD Asset Management, LP | $1,674,500 | 1.09% | 170,000 | Shares | Sole | 2026-05-13 | ||||
| Small Mint Tower Capital Management B.V. | $1,477,500 | 0.96% | 150,000 | Shares | Sole | 2026-05-04 | ||||
| Small Alpine Global Management, LLC | $1,477,500 | 0.96% | 150,000 | Shares | Sole | 2026-05-15 | ||||
| Small StoneX Group Inc. | $1,080,988 | 0.71% | 109,745 | Shares | Defined | 2026-05-14 | ||||
| Small Context Capital Management, LLC | $985,000 | 0.64% | 100,000 | Shares | Sole | 2026-05-07 | ||||
| Mid WHITEBOX ADVISORS LLC | $985,000 | 0.64% | 100,000 | Shares | Sole | 2026-05-15 | ||||
| Large TORONTO DOMINION BANK Bank | $939,670 | 0.61% | 95,398 | Shares | Defined | 2026-05-15 | ||||
| Mid Virtu Financial LLC | $893,729 | 0.58% | 90,734 | Shares | Defined | 2026-05-14 | ||||
| Mega JPMORGAN CHASE & CO | $863,490 | 0.56% | 87,664 | Shares | Defined | 2026-05-13 | ||||
| Micro L1 Global Manager Pty Ltd | $738,750 | 0.48% | 75,000 | Shares | Sole | 2026-05-15 | ||||
| Large Parallax Volatility Advisers, L.P. | $492,500 | 0.32% | 50,000 | Shares | Sole | 2026-05-15 | ||||
| Small DELTEC ASSET MANAGEMENT LLC | $344,750 | 0.22% | 35,000 | Shares | Sole | 2026-04-24 | ||||
| Mid WOLVERINE ASSET MANAGEMENT LLC | $99,356 | 0.06% | 10,087 | Shares | Defined | 2026-05-04 | ||||
| Mega ROYAL BANK OF CANADA Bank | $26,595 | 0.02% | 2,700 | Shares | Defined | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $167 | 0.00% | 17 | Shares | Defined | 2026-05-15 | ||||
| No holders match your search. | ||||||||||