Stocks › ARCI
Archimedes Tech SPAC Partners III Co.
ARCI·Nasdaq·
United States·USD
United States·USD$10.07
-0.01 (-0.10%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
ARCI
Archimedes Tech SPAC Partners III Co. · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ARCIS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of ARCI by members of U.S. Congress · 2 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Roger MarshallHouse · R · KS |
ARCIArchimedes Tech SPAC Partners III Co. · Stock |
Purchase $1,001 - $15,000 |
Aug 6, 2018 | Aug 21, 2017 | Filing ↗ |
| Roger MarshallHouse · R · KS |
ARCIArchimedes Tech SPAC Partners III Co. · Stock |
Sale $1,001 - $15,000 |
Aug 6, 2018 | Aug 21, 2017 | Filing ↗ |
Whale Activity
Position changes in ARCI reported for 2026-06-30 by 6 tracked institutional filers
- Increased1
- New0
- Held2
- Decreased1
- Closed0
- No prior filing2
| Filer | Shares | Value | Change |
|---|---|---|---|
| D. E. Shaw & Co., Inc. | 1.1M | $12.3M | held |
| TWO SIGMA INVESTMENTS, LP | 725.0K | $7.8M | held |
| CITADEL ADVISORS LLC | 250.3K | $2.7M | increased |
| MILLENNIUM MANAGEMENT LLC | 69.4K | $748K | decreased |
| Mint Tower Capital Management B.V. | 300.0K | $3K | — |
| SkyView Investment Advisors, LLC | 182.5K | $2K | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by ARCI insiders, by quarter · Form 4
Recent Insider Transactions
80 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Archimedes Tech SPAC Sponsors III LLC10% owner | Purchase | +390.0K | — | — | Jan 26, 2026 | Form 4 ↗ |
| Long LongChief Executive Officer · Director · 10% owner | Purchase | +390.0K | — | — | Jan 26, 2026 | Form 4 ↗ |
| Johnson Virland AChief Financial Officer | Sale | −4,112 | $8.65 | $36K | Feb 5, 2021 | Form 4 ↗ |
| Johnson Virland AChief Financial Officer | Sale | −1,469 | $3.61 | $5K | Nov 3, 2020 | Form 4 ↗ |
| Isaac Capital Group, LLC10% owner | Sale Amended | −149.7K | $7.83 | $1.2M | Apr 25, 2019 | Form 4 ↗ |
| Isaac Jon10% owner | Sale | −149.7K | $78.29 | $11.7M | Apr 25, 2019 | Form 4 ↗ |
| Johnson Virland AChief Financial Officer | Purchase | +30.0K | $1.00 | $30K | Aug 29, 2018 | Form 4 ↗ |
| Johnson Virland AChief Financial Officer | Purchase | +15.0K | $0.78 | $12K | Aug 27, 2018 | Form 4 ↗ |
| Johnson Virland AChief Financial Officer | Purchase | +15.0K | $0.71 | $11K | Aug 24, 2018 | Form 4 ↗ |
| MATULA TIMOTHYDirector | Grant / award | +560.0K | $0.00 | $0 | Aug 10, 2018 | Form 4 ↗ |
| Johnson Virland AChief Financial Officer | Grant / award | +200.0K | $0.00 | $0 | Aug 10, 2018 | Form 4 ↗ |
| Isaac AntoniosChief Executive Officer · Director | Grant / award | +410.0K | $0.00 | $0 | Aug 10, 2018 | Form 4 ↗ |
| Butler RichardDirector | Grant / award | +50.0K | $0.00 | $0 | Aug 10, 2018 | Form 4 ↗ |
| Butler RichardDirector | Grant / award | +20.0K | $0.00 | $0 | Oct 3, 2017 | Form 4 ↗ |
| Bremer BradleyPresident of ApplianceSmart | Sale | −475 | $1.25 | $594 | Aug 23, 2017 | Form 4 ↗ |
| Bremer BradleyPresident of ApplianceSmart | Sale | −4,500 | $1.19 | $5K | Aug 23, 2017 | Form 4 ↗ |
| Bremer BradleyPresident of ApplianceSmart | Sale | −4,900 | $1.25 | $6K | May 25, 2016 | Form 4 ↗ |
| Isaac Capital Group, LLC10% owner | Sale | −34.3K | $1.03 | $35K | Oct 2, 2015 | Form 4 ↗ |
| Isaac Capital Group, LLC10% owner | Sale | −6,000 | $1.04 | $6K | Oct 2, 2015 | Form 4 ↗ |
| Isaac Capital Group, LLC10% owner | Sale | −60.0K | $1.15 | $69K | Sep 25, 2015 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding ARCI · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| RiverNorth Opportunities Fund Inc. RIVERNORTH OPPORTUNITIES FUND, INC. (RIV, RIV-PA) | 90.0K | $937K | 0.29% | Mar 31, 2026 |
| Global Multi-Strategy Fund Principal Funds, Inc | 820 | $9K | 0.00% | May 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list ARCI's shares (CUSIP G04537109), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming Archimedes Tech SPAC Partners III Co. as client
No lobbying filings found naming Archimedes Tech SPAC Partners III Co. as the client.
Government Contracts
Federal awards to Archimedes Tech SPAC Partners III Co. · USAspending
No federal contract awards found for Archimedes Tech SPAC Partners III Co..
U.S. Patents
Recent USPTO applications naming Archimedes Tech SPAC Partners III Co.
No USPTO patent applications found for Archimedes Tech SPAC Partners III Co..
Annual Financials
From ARCI's 10-K filings · XBRL
No annual XBRL figures on record for ARCI. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in ARCI's price history.
About Archimedes Tech SPAC Partners III Co.
From SEC EDGAR company records
Industry (SIC 6770)Blank Checks
SectorFinancials
HeadquartersCLAYMONT, DE
IncorporatedE9
SEC CIK0002083910 ↗