ATII · Insider trading · 13F holders · Congress trades
Archimedes Tech Spac Partner (ATII)
Who is buying and selling ATII: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 9
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
ATII at a glance
- No open-market insider purchases or sales of ATII were filed in the last 90 days.
- 9 13F filers hold ATII among their 50 largest positions, worth $61.1M combined. The biggest bets by portfolio weight are Decagon Asset Management LLP (2.0%), L1 Global Manager Pty Ltd (1.8%) and SkyView Investment Advisors, LLC (1.5%).
- No member of Congress has disclosed a trade in ATII.
ATII insider trading
No open-market insider purchases or sales of ATII were filed in the last 90 days.
Who owns ATII? Hedge funds and superinvestors
9 13F filers hold ATII among their 50 largest positions, worth $61.1M combined. The biggest bets by portfolio weight are Decagon Asset Management LLP (2.0%), L1 Global Manager Pty Ltd (1.8%) and SkyView Investment Advisors, LLC (1.5%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| TENOR CAPITAL MANAGEMENT Co., L.P.Hedge fund | 0.9% | $14.7M | 1,367,830 | -8.8% shares | Q2 2026 |
| Fort Baker Capital Management LPHedge fund | 1.4% | $14.3M | 1,330,746 | — | Q2 2026 |
| Decagon Asset Management LLPAsset manager | 2.0% | $10.1M | 937,829 | — | Q2 2026 |
| Shay Capital LLCAsset manager | 0.7% | $6.7M | 623,687 | — | Q2 2026 |
| K2 Principal Fund, L.P.Asset manager | 1.4% | $5.7M | 526,227 | — | Q2 2026 |
| Mint Tower Capital Management B.V.Asset manager | 0.8% | $3.2M | 300,000 | +0.0% shares | Q2 2026 |
| L1 Global Manager Pty LtdHedge fund | 1.8% | $2.2M | 200,000 | +0.0% shares | Q2 2026 |
| DLD Asset Management, LPHedge fund | 0.6% | $2.1M | 195,453 | — | Q2 2026 |
| SkyView Investment Advisors, LLCInstitutional asset manager | 1.5% | $2.0M | 182,495 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 9). Screen ATII in the grand portfolio →
ATII stock trades by members of Congress
No member of Congress has disclosed a trade in ATII.
ATII questions and answers
Are insiders buying ATII stock?
No open-market insider purchases or sales of ATII were filed in the last 90 days.
Which hedge funds own ATII?
9 13F filers hold ATII among their 50 largest positions, worth $61.1M combined. The biggest bets by portfolio weight are Decagon Asset Management LLP (2.0%), L1 Global Manager Pty Ltd (1.8%) and SkyView Investment Advisors, LLC (1.5%).
Has Congress traded ATII?
No member of Congress has disclosed a trade in ATII.
Who is the largest holder of ATII?
Among 13F filers, TENOR CAPITAL MANAGEMENT Co., L.P. reports the largest ATII position, $14.7M (1,367,830 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Decagon Asset Management LLP's: 2.0% of its portfolio.
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Free to use with a link back. The data updates every filing day.