Archimedes Tech SPAC Partners II Co
ATII
50 hedge funds and large institutions have $190M invested in Archimedes Tech SPAC Partners II Co in 2026 Q2 according to their latest regulatory filings, with 13 funds opening new positions, 3 increasing their positions, 23 reducing their positions, and 17 closing their positions.
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
7% less funds holding
Funds holding: 54 → 50 (-4)
15.54% less ownership
Funds ownership: 74.98% → 59.44% (-16%)
18% less capital invested
Capital invested by funds: $231M → $190M (-$41.7M)
24% less first-time investments, than exits
New positions opened: 13 | Existing positions closed: 17
87% less repeat investments, than reductions
Existing positions increased: 3 | Existing positions reduced: 23
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
FBCM
Fort Baker Capital Management
Larkspur,
California
|
+$14.5M |
| 2 |
DAM
Decagon Asset Management
London,
United Kingdom
|
+$10.2M |
| 3 |
SC
Shay Capital
New York
|
+$6.78M |
| 4 |
KPF
K2 Principal Fund
Toronto,
Ontario, Canada
|
+$4.76M |
| 5 |
FIA
FNY Investment Advisers
New York
|
+$3.55M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WCMNY
Westchester Capital Management (New York)
Valhalla,
New York
|
-$9.44M |
| 2 |
GCL
Glazer Capital LLC
New York
|
-$7.6M |
| 3 |
Toronto Dominion Bank
Toronto, Ontario,
Ontario, Canada
|
-$6.16M |
| 4 |
PMAM
Picton Mahoney Asset Management
Toronto,
Ontario, Canada
|
-$5.21M |
| 5 |
RCM
Rivernorth Capital Management
West Palm Beach,
Florida
|
-$4.45M |
ATII Hedge Fund Activity: Q2 2026 in Review
50 of the 8,334 institutional investors tracked by Wall St. Rank reported a position in Archimedes Tech SPAC Partners II Co (ATII) for Q2 2026, worth a combined $190M — down 18% from $231M a quarter earlier.
Sellers outnumbered buyers: 17 funds closed out of ATII and 13 opened new positions — a net loss of 4 holders — while 23 trimmed existing stakes and 3 added.
The largest buyer was Fort Baker Capital Management, opening a new position worth an estimated $14.5M. The largest seller was Westchester Capital Management (New York), exiting entirely with an estimated $9.44M sold.
- 50 institutional investors held Archimedes Tech SPAC Partners II Co (ATII) as of Q2 2026, down from 54 in Q1 2026.
- Funds reported $190M of Archimedes Tech SPAC Partners II Co stock for Q2 2026, down 18% quarter-over-quarter.
- 13 funds opened new Archimedes Tech SPAC Partners II Co positions in Q2 2026 and 17 closed out, a net change of -4 holders.
- The largest Archimedes Tech SPAC Partners II Co buyer in Q2 2026 was Fort Baker Capital Management, an estimated $14.5M added.
- The largest Archimedes Tech SPAC Partners II Co seller in Q2 2026 was Westchester Capital Management (New York), an estimated $9.44M sold.
Based on aggregated 13F filings for Q2 2026.