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ATII

Archimedes Tech SPAC Partners II Co
ATII

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.

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New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding: →

more capital invested

Capital invested by funds: $ → $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

Holders
54
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
–
Puts
–
Net Calls
Net Calls Change

Top Buyers

Rank Fund Capital Flow
1
+$5.25M
2
+$3.88M
3
+$2.99M
4
LPC
Lineage Point Capital
Florida
+$1.01M
5
CS
Clear Street
New York
+$770K

Top Sellers

Rank Fund Capital Flow
1
-$5.94M
2
-$4.44M
3
-$2.99M
4
WAM
Wolverine Asset Management
Illinois
-$2.32M
5
GCL
Glazer Capital LLC
New York
-$1.2M
Name Holding Trade Value Shares
Change 		Change in
Stake
TCM
1
Tenor Capital Management
New York
$15.6M
MF
2
Magnetar Financial
Illinois
$13.6M
D.E. Shaw & Co
3
D.E. Shaw & Co
New York
$11.9M
LA
4
Linden Advisors
New York
$10.4M
AA
5
AQR Arbitrage
Connecticut
$9.58M
WCMNY
6
Westchester Capital Management (New York)
New York
$9.44M
LP
7
LMR Partners
United Kingdom
$8.85M
GCM
8
Ghisallo Capital Management
Massachusetts
$8.35M
GL
9
Governors Lane
New York
$7.93M
AIMCA
10
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$7.84M
GCL
11
Glazer Capital LLC
New York
$7.81M
Two Sigma Investments
12
Two Sigma Investments
New York
$7.55M
Hudson Bay Capital Management
13
Hudson Bay Capital Management
Connecticut
$7.32M
RCM
14
Radcliffe Capital Management
Pennsylvania
$6.9M
Toronto Dominion Bank
15
Toronto Dominion Bank
Ontario, Canada
$6.77M
SC
16
Sculptor Capital
New York
$6.25M
JG
17
Jain Global
New York
$5.22M
PMAM
18
Picton Mahoney Asset Management
Ontario, Canada
$5.21M
MCM
19
Moore Capital Management
New York
$4.68M
RCM
20
Rivernorth Capital Management
Florida
$4.45M
RC
21
RLH Capital
New York
$4.18M
COPPSERS
22
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$4.17M
JGC
23
J. Goldman & Co
New York
$3.85M
PC
24
Periscope Capital
Ontario, Canada
$3.68M
Goldman Sachs
25
Goldman Sachs
New York
$3.41M
1
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ATII Hedge Fund Activity: Q1 2026 in Review

54 of the 8,126 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.