Archimedes Tech SPAC Partners II

ATII · NASDAQ

$9.81+$2.64 (+36.82%)TodayMarket closed ·
Prev close $7.17

Who owns ATII

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 51.9% of ATII’s shares.

  • Archimedes Tech SPAC Sponsors II L.L.C.19.4%
  • Tenor Capital Management Co., L.P.4.6%
  • Fort Baker Capital Management LP4.5%
  • Magnetar Capital Partners LP4.4%
  • Next 6 largest institutions18.9%
  • All other shareholders48.1%
Top institutional holders of ATII
HolderShares% of shares
Archimedes Tech SPAC Sponsors II L.L.C.5.75M19.43%
Tenor Capital Management Co., L.P.1.37M4.62%
Fort Baker Capital Management LP1.33M4.50%
Magnetar Capital Partners LP1.30M4.38%
Barclays, Plc.1.15M3.88%
D. E. Shaw & Co., L.P.1.14M3.85%
Decagon Asset Management LLP937.83K3.17%
Linden Advisors L.P.848.27K2.87%
Ghisallo Capital Management LLC800.00K2.70%
Two Sigma Investments, LP725.00K2.45%

Largest mutual fund holders

Top mutual fund holders of ATII
HolderShares% of shares
Merger Fund789.86K2.67%
PICTON Arbitrage Plus Alternative Fund411.50K1.39%
AQR UCITS Funds-AQR Corporate Arbitrage UCITS Fund37.74K0.13%
PICTON Arbitrage Alternative Fund27.70K0.09%
Virtus Westchester Event Driven Fund25.82K0.09%

Short interest

Settled Sep 30, 2026

Shares short
17.60K
Days to cover
1.00
% of shares outstanding
0.06%
Average daily volume
561.97K
Change since last report
−29.1%

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