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ARCI

Archimedes Tech SPAC Partners III
ARCI

40 hedge funds and large institutions have $153M invested in Archimedes Tech SPAC Partners III in 2026 Q1 according to their latest regulatory filings, with 40 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

44.14% more ownership

Funds ownership: 0% → 44.14% (+44%)

Holders
40
Holders Change
+40
Holders Change %
–
% of All Funds
0.49%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
40
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$17.8M
2
LA
Linden Advisors
New York
+$11.8M
3
MF
Magnetar Financial
Illinois
+$11.8M
4
GL
Governors Lane
New York
+$9.87M
5
TCM
Tenor Capital Management
New York
+$9.87M

Top Sellers

No sellers this quarter

ARCI Hedge Fund Activity: Q1 2026 in Review

40 of the 8,207 institutional investors tracked by Wall St. Rank reported a position in Archimedes Tech SPAC Partners III (ARCI) for Q1 2026, worth a combined $153M.

Buyers outnumbered sellers: 40 funds opened new ARCI positions and 0 closed out — a net gain of 40 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Adage Capital Partners, opening a new position worth an estimated $17.8M.

  • 40 institutional investors held Archimedes Tech SPAC Partners III (ARCI) as of Q1 2026, up from 0 in Q4 2025.
  • Funds reported $153M of Archimedes Tech SPAC Partners III stock for Q1 2026.
  • 40 funds opened new Archimedes Tech SPAC Partners III positions in Q1 2026 and 0 closed out, a net change of +40 holders.
  • The largest Archimedes Tech SPAC Partners III buyer in Q1 2026 was Adage Capital Partners, an estimated $17.8M added.

Based on aggregated 13F filings for Q1 2026.