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ATII

Archimedes Tech SPAC Partners II Co

54 hedge funds and large institutions have $231M invested in Archimedes Tech SPAC Partners II Co in 2026 Q1 according to their latest regulatory filings, with 9 funds opening new positions, 6 increasing their positions, 10 reducing their positions, and 3 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more first-time investments, than exits

New positions opened: 9 | Existing positions closed: 3

10% more funds holding

Funds holding: 4954 (+5)

0% more capital invested

Capital invested by funds: $230M → $231M (+$844K)

40% less repeat investments, than reductions

Existing positions increased: 6 | Existing positions reduced: 10

Holders
54
Holders Change
+5
Holders Change %
+10.2%
% of All Funds
0.66%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
9
Increased
6
Reduced
10
Closed
3
Calls
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
MSU
51
Mizuho Securities USA
New York
$202K -$2.99M -284,358 -94%
Geode Capital Management
52
Geode Capital Management
Massachusetts
$116K +$117K +11,102 New
Citadel Advisors
53
Citadel Advisors
Florida
$108K +$109K +10,377 New
Morgan Stanley
54
Morgan Stanley
New York
$645 -$714 -68 -52%
DCM
55
Driehaus Capital Management
Illinois
-$5.94M -573,083 Closed
SG
56
StoneX Group
New York
-$524K -50,613 Closed
WAM
57
Warberg Asset Management
Illinois
-$104K -10,000 Closed

ATII Hedge Fund Activity: Q1 2026 in Review

54 of the 8,130 institutional investors tracked by Wall St. Rank reported a position in Archimedes Tech SPAC Partners II Co (ATII) for Q1 2026, worth a combined $231M — up 0.37% from $230M a quarter earlier.

Buyers outnumbered sellers: 9 funds opened new ATII positions and 3 closed out — a net gain of 6 holders — while 6 added to existing stakes and 10 trimmed.

The largest buyer was Toronto Dominion Bank, adding an estimated $5.25M. The largest seller was Driehaus Capital Management, exiting entirely with an estimated $5.94M sold.

  • 54 institutional investors held Archimedes Tech SPAC Partners II Co (ATII) as of Q1 2026, up from 49 in Q4 2025.
  • Funds reported $231M of Archimedes Tech SPAC Partners II Co stock for Q1 2026, up 0.37% quarter-over-quarter.
  • 9 funds opened new Archimedes Tech SPAC Partners II Co positions in Q1 2026 and 3 closed out, a net change of +6 holders.
  • The largest Archimedes Tech SPAC Partners II Co buyer in Q1 2026 was Toronto Dominion Bank, an estimated $5.25M added.
  • The largest Archimedes Tech SPAC Partners II Co seller in Q1 2026 was Driehaus Capital Management, an estimated $5.94M sold.

Based on aggregated 13F filings for Q1 2026.