Atomera
ATOM
85 hedge funds and large institutions have $46.6M invested in Atomera in 2025 Q3 according to their latest regulatory filings, with 12 funds opening new positions, 20 increasing their positions, 28 reducing their positions, and 16 closing their positions.
3.03% less ownership
Funds ownership: 36.55% → 33.52% (-3%)
4% less funds holding
Funds holding: 89 → 85 (-4)
17% less capital invested
Capital invested by funds: $56.4M → $46.6M (-$9.76M)
25% less first-time investments, than exits
New positions opened: 12 | Existing positions closed: 16
29% less call options, than puts
Call options by funds: $642K | Put options by funds: $898K
29% less repeat investments, than reductions
Existing positions increased: 20 | Existing positions reduced: 28
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$721K |
| 2 |
State Street
Boston,
Massachusetts
|
+$457K |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$383K |
| 4 |
Renaissance Technologies
New York
|
+$248K |
| 5 |
UBS Group
Zurich,
Switzerland
|
+$217K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$1.61M |
| 2 |
Morgan Stanley
New York
|
-$1.07M |
| 3 |
D.E. Shaw & Co
New York
|
-$929K |
| 4 |
Marshall Wace
London,
United Kingdom
|
-$664K |
| 5 |
National Bank of Canada
Montreal,
Quebec, Canada
|
-$328K |
ATOM Hedge Fund Activity: Q3 2025 in Review
85 of the 7,626 institutional investors tracked by Wall St. Rank reported a position in Atomera (ATOM) for Q3 2025, worth a combined $46.6M — down 17% from $56.4M a quarter earlier.
Sellers outnumbered buyers: 16 funds closed out of ATOM and 12 opened new positions — a net loss of 4 holders — while 28 trimmed existing stakes and 20 added.
The largest buyer was BlackRock, adding an estimated $721K. The largest seller was Millennium Management, exiting entirely with an estimated $1.61M sold.
- 85 institutional investors held Atomera (ATOM) as of Q3 2025, down from 89 in Q2 2025.
- Funds reported $46.6M of Atomera stock for Q3 2025, down 17% quarter-over-quarter.
- 12 funds opened new Atomera positions in Q3 2025 and 16 closed out, a net change of -4 holders.
- The largest Atomera buyer in Q3 2025 was BlackRock, an estimated $721K added.
- The largest Atomera seller in Q3 2025 was Millennium Management, an estimated $1.61M sold.
Based on aggregated 13F filings for Q3 2025.