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ARCI

Archimedes Tech SPAC Partners III
ARCI

52 hedge funds and large institutions have $203M invested in Archimedes Tech SPAC Partners III in 2026 Q2 according to their latest regulatory filings, with 16 funds opening new positions, 9 increasing their positions, 4 reducing their positions, and 4 closing their positions.

New
Increased
Maintained
Reduced
Closed

300% more first-time investments, than exits

New positions opened: 16 | Existing positions closed: 4

125% more repeat investments, than reductions

Existing positions increased: 9 | Existing positions reduced: 4

32% more capital invested

Capital invested by funds: $153M → $203M (+$49.3M)

30% more funds holding

Funds holding: 40 → 52 (+12)

13.25% more ownership

Funds ownership: 44.14% → 57.39% (+13%)

Holders
52
Holders Change
+12
Holders Change %
+30%
% of All Funds
0.63%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
16
Increased
9
Reduced
4
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
AIMCA
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
+$9.93M
2
AA
AQR Arbitrage
Connecticut
+$7.53M
3
RCM
Rivernorth Capital Management
Florida
+$4.97M
4
BNP Paribas Financial Markets
BNP Paribas Financial Markets
France
+$4.89M
5
COPPSERS
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
+$3.97M

Top Sellers

Rank Fund Capital Flow
1
AGM
Alpine Global Management
New York
-$1.48M
2
CS
Clear Street
New York
-$925K
3
VF
Virtu Financial
New York
-$894K
4
MC
Meteora Capital
Florida
-$589K
5
Parallax Volatility Advisers
Parallax Volatility Advisers
California
-$495K
Name Holding Trade Value Shares
Change 		Change in
Stake
Two Sigma Investments
26
Two Sigma Investments
New York
$2.74M – – –
HI
27
HBK Investments
Texas
$2.5M – – –
GCM
28
Ghisallo Capital Management
Massachusetts
$2.5M – – –
WRBC
29
W.R. Berkley Corp
Connecticut
$2.48M – – –
6CM
30
683 Capital Management
New York
$2M – – –
FTCM
31
First Trust Capital Management
Illinois
$2M – – –
MP
32
Mangrove Partners
Connecticut
$2M +$1.99M +200,000 New
Toronto Dominion Bank
33
Toronto Dominion Bank
Ontario, Canada
$1.76M +$800K +80,518 +84%
DAM
34
DLD Asset Management
New York
$1.7M – – –
WC
35
Wealthspring Capital
New York
$1.61M +$1.6M +160,960 New
MTCM
36
Mint Tower Capital Management
Netherlands
$1.5M – – –
Millennium Management
37
Millennium Management
New York
$1.5M +$1.49M +150,000 New
PMAM
38
Picton Mahoney Asset Management
Ontario, Canada
$1.5M +$1.49M +149,996 New
SG
39
StoneX Group
New York
$1.5M +$403K +40,564 +37%
CS
40
Clear Street
New York
$1.48M -$925K -93,153 -39%
CCM
41
Context Capital Management
California
$1M – – –
WA
42
Whitebox Advisors
Minnesota
$1M – – –
BFM
43
Boothbay Fund Management
New York
$951K +$944K +95,000 New
JP Morgan Chase
44
JP Morgan Chase
New York
$877K – – –
LGM
45
L1 Global Manager
$751K – – –
CC
46
Centiva Capital
New York
$701K +$696K +70,050 New
BI
47
Bulldog Investors
New Jersey
$646K +$641K +64,500 New
DAM
48
Deltec Asset Management
New York
$350K – – –
AA
49
ABC Arbitrage
France
$350K +$348K +35,000 New
WAM
50
Wolverine Asset Management
Illinois
$330K +$227K +22,860 +227%
1
2
3

ARCI Hedge Fund Activity: Q2 2026 in Review

52 of the 8,279 institutional investors tracked by Wall St. Rank reported a position in Archimedes Tech SPAC Partners III (ARCI) for Q2 2026, worth a combined $203M — up 32% from $153M a quarter earlier.

Buyers outnumbered sellers: 16 funds opened new ARCI positions and 4 closed out — a net gain of 12 holders — while 9 added to existing stakes and 4 trimmed.

The largest buyer was Alberta Investment Management Corp (AIMCo), opening a new position worth an estimated $9.93M. The largest seller was Alpine Global Management, exiting entirely with an estimated $1.48M sold.

  • 52 institutional investors held Archimedes Tech SPAC Partners III (ARCI) as of Q2 2026, up from 40 in Q1 2026.
  • Funds reported $203M of Archimedes Tech SPAC Partners III stock for Q2 2026, up 32% quarter-over-quarter.
  • 16 funds opened new Archimedes Tech SPAC Partners III positions in Q2 2026 and 4 closed out, a net change of +12 holders.
  • The largest Archimedes Tech SPAC Partners III buyer in Q2 2026 was Alberta Investment Management Corp (AIMCo), an estimated $9.93M added.
  • The largest Archimedes Tech SPAC Partners III seller in Q2 2026 was Alpine Global Management, an estimated $1.48M sold.

Based on aggregated 13F filings for Q2 2026.