Atomera
ATOM
95 hedge funds and large institutions have $22.9M invested in Atomera in 2025 Q4 according to their latest regulatory filings, with 18 funds opening new positions, 32 increasing their positions, 26 reducing their positions, and 7 closing their positions.
157% more first-time investments, than exits
New positions opened: 18 | Existing positions closed: 7
23% more repeat investments, than reductions
Existing positions increased: 32 | Existing positions reduced: 26
16% more call options, than puts
Call options by funds: $217K | Put options by funds: $187K
12% more funds holding
Funds holding: 85 → 95 (+10)
0.9% less ownership
Funds ownership: 33.52% → 32.62% (-0.9%)
51% less capital invested
Capital invested by funds: $46.6M → $22.9M (-$23.8M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
+$542K |
| 2 |
Pathstone Holdings
Englewood,
New Jersey
|
+$507K |
| 3 |
Jane Street
New York
|
+$367K |
| 4 |
XT
XTX Topco
George Town,
Cayman Islands
|
+$291K |
| 5 |
GCP
GSA Capital Partners
London,
United Kingdom
|
+$289K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Baird Financial Group
Milwaukee,
Wisconsin
|
-$2M |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$652K |
| 3 |
BA
Bard Associates
Chicago,
Illinois
|
-$435K |
| 4 |
Citadel Advisors
Miami,
Florida
|
-$315K |
| 5 |
Renaissance Technologies
New York
|
-$267K |
ATOM Hedge Fund Activity: Q4 2025 in Review
95 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in Atomera (ATOM) for Q4 2025, worth a combined $22.9M — down 51% from $46.6M a quarter earlier.
Buyers outnumbered sellers: 18 funds opened new ATOM positions and 7 closed out — a net gain of 11 holders — while 32 added to existing stakes and 26 trimmed.
The largest buyer was Marshall Wace, opening a new position worth an estimated $542K. The largest seller was Baird Financial Group, cutting an estimated $2M.
- 95 institutional investors held Atomera (ATOM) as of Q4 2025, up from 85 in Q3 2025.
- Funds reported $22.9M of Atomera stock for Q4 2025, down 51% quarter-over-quarter.
- 18 funds opened new Atomera positions in Q4 2025 and 7 closed out, a net change of +11 holders.
- The largest Atomera buyer in Q4 2025 was Marshall Wace, an estimated $542K added.
- The largest Atomera seller in Q4 2025 was Baird Financial Group, an estimated $2M sold.
Based on aggregated 13F filings for Q4 2025.