Accuray
ARAY
125 hedge funds and large institutions have $60.5M invested in Accuray in 2025 Q4 according to their latest regulatory filings, with 18 funds opening new positions, 34 increasing their positions, 53 reducing their positions, and 17 closing their positions.
4.57% more ownership
Funds ownership: 63.82% → 68.39% (+4.6%)
6% more first-time investments, than exits
New positions opened: 18 | Existing positions closed: 17
3% less funds holding
Funds holding: 129 → 125 (-4)
36% less repeat investments, than reductions
Existing positions increased: 34 | Existing positions reduced: 53
40% less capital invested
Capital invested by funds: $101M → $60.5M (-$40.8M)
80% less call options, than puts
Call options by funds: $98K | Put options by funds: $490K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TG
TCW Group
Los Angeles,
California
|
+$4.44M |
| 2 |
AC
Armistice Capital
New York
|
+$1.47M |
| 3 |
PHP
Parkman Healthcare Partners
Stamford,
Connecticut
|
+$1.06M |
| 4 |
Mackenzie Financial
Toronto Ontario,
Ontario, Canada
|
+$1.04M |
| 5 |
SAM
Silverback Asset Management
Chapel Hill,
North Carolina
|
+$582K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AI
Acuitas Investments
Seattle,
Washington
|
-$3.99M |
| 2 |
HA
Heartland Advisors
Milwaukee,
Wisconsin
|
-$2.08M |
| 3 |
Nuveen
Charlotte,
North Carolina
|
-$1.01M |
| 4 |
TCM
Tenor Capital Management
New York
|
-$624K |
| 5 |
NSIM
North Star Investment Management
Chicago,
Illinois
|
-$597K |
ARAY Hedge Fund Activity: Q4 2025 in Review
125 of the 8,275 institutional investors tracked by Wall St. Rank reported a position in Accuray (ARAY) for Q4 2025, worth a combined $60.5M — down 40% from $101M a quarter earlier.
Buyers outnumbered sellers: 18 funds opened new ARAY positions and 17 closed out — a net gain of 1 holder — while 34 added to existing stakes and 53 trimmed.
The largest buyer was TCW Group, adding an estimated $4.44M. The largest seller was Acuitas Investments, exiting entirely with an estimated $3.99M sold.
- 125 institutional investors held Accuray (ARAY) as of Q4 2025, down from 129 in Q3 2025.
- Funds reported $60.5M of Accuray stock for Q4 2025, down 40% quarter-over-quarter.
- 18 funds opened new Accuray positions in Q4 2025 and 17 closed out, a net change of +1 holder.
- The largest Accuray buyer in Q4 2025 was TCW Group, an estimated $4.44M added.
- The largest Accuray seller in Q4 2025 was Acuitas Investments, an estimated $3.99M sold.
Based on aggregated 13F filings for Q4 2025.