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Accuray
ARAY

127 hedge funds and large institutions have $94.6M invested in Accuray in 2025 Q2 according to their latest regulatory filings, with 17 funds opening new positions, 42 increasing their positions, 41 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more call options, than puts

Call options by funds: $50K | Put options by funds: $25K

15.37% more ownership

Funds ownership: 55.64% → 71.01% (+15%)

6% more first-time investments, than exits

New positions opened: 17 | Existing positions closed: 16

2% more repeat investments, than reductions

Existing positions increased: 42 | Existing positions reduced: 41

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

1% less funds holding

Funds holding: 128 → 127 (-1)

8% less capital invested

Capital invested by funds: $103M → $94.6M (-$7.94M)

Holders
127
Holders Change
-1
Holders Change %
-0.78%
% of All Funds
1.67%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
17
Increased
42
Reduced
41
Closed
16
Calls
$50K
Puts
$25K
Net Calls
+$25K
Net Calls Change
-$186K

Top Buyers

Rank Fund Capital Flow
1
TG
TCW Group
California
+$17.6M
2
TCM
Tenor Capital Management
New York
+$2.22M
3
SAM
Silverback Asset Management
North Carolina
+$1.73M
4
HA
Heartland Advisors
Wisconsin
+$1.16M
5
UBS Group
UBS Group
Switzerland
+$1.04M

Top Sellers

Rank Fund Capital Flow
1
HFA
Harbert Fund Advisors
Alabama
-$593K
2
Neuberger Berman Group
Neuberger Berman Group
New York
-$396K
3
JP Morgan Chase
JP Morgan Chase
New York
-$322K
4
XT
XTX Topco
Cayman Islands
-$226K
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$200K
Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$12.4M +$156K +105,688 +1%
TG
2
TCW Group
California
$10.7M +$17.6M +11,909,357 New
Vanguard Group
3
Vanguard Group
Pennsylvania
$7.36M +$116K +78,554 +1%
Neuberger Berman Group
4
Neuberger Berman Group
New York
$7.2M -$396K -267,632 -5%
HA
5
Heartland Advisors
Wisconsin
$6.93M +$1.16M +783,850 +18%
AC
6
Armistice Capital
New York
$4.43M +$1.04M +700,000 +28%
Renaissance Technologies
7
Renaissance Technologies
New York
$3.57M -$176K -119,000 -4%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$3.32M +$259K +174,703 +8%
State Street
9
State Street
Massachusetts
$2.73M +$83.7K +56,528 +3%
D.E. Shaw & Co
10
D.E. Shaw & Co
New York
$2.46M – – –
UBS Group
11
UBS Group
Switzerland
$2.44M +$1.04M +700,749 +65%
TCM
12
Tenor Capital Management
New York
$2.06M +$2.22M +1,500,000 New
HFA
13
Harbert Fund Advisors
Alabama
$1.98M -$593K -400,364 -22%
AI
14
Acuitas Investments
Washington
$1.95M +$8.62K +5,819 +0.4%
DCM
15
DAFNA Capital Management
California
$1.67M – – –
NSIM
16
North Star Investment Management
Illinois
$1.63M +$199K +134,275 +13%
SAM
17
Silverback Asset Management
North Carolina
$1.6M +$1.73M +1,166,054 New
Mackenzie Financial
18
Mackenzie Financial
Ontario, Canada
$1.53M +$566K +382,214 +52%
KA
19
Kovack Advisors
Florida
$1.48M +$178K +119,925 +13%
Northern Trust
20
Northern Trust
Illinois
$1.11M -$4.19K -2,832 -0.3%
Fidelity Investments
21
Fidelity Investments
Massachusetts
$1.07M +$50.4K +34,045 +5%
Morgan Stanley
22
Morgan Stanley
New York
$837K +$50.4K +34,010 +6%
Marshall Wace
23
Marshall Wace
United Kingdom
$820K +$886K +598,293 New
SBCM
24
Silverberg Bernstein Capital Management
New York
$794K +$189K +127,896 +28%
Connor, Clark & Lunn Investment Management (CC&L)
25
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$734K +$254K +171,826 +47%
1
2 3 4 5

ARAY Hedge Fund Activity: Q2 2025 in Review

127 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Accuray (ARAY) for Q2 2025, worth a combined $94.6M — down 7.7% from $103M a quarter earlier.

Buyers outnumbered sellers: 17 funds opened new ARAY positions and 16 closed out — a net gain of 1 holder — while 42 added to existing stakes and 41 trimmed.

The largest buyer was TCW Group, opening a new position worth an estimated $17.6M. The largest seller was Harbert Fund Advisors, cutting an estimated $593K.

  • 127 institutional investors held Accuray (ARAY) as of Q2 2025, down from 128 in Q1 2025.
  • Funds reported $94.6M of Accuray stock for Q2 2025, down 7.7% quarter-over-quarter.
  • 17 funds opened new Accuray positions in Q2 2025 and 16 closed out, a net change of +1 holder.
  • The largest Accuray buyer in Q2 2025 was TCW Group, an estimated $17.6M added.
  • The largest Accuray seller in Q2 2025 was Harbert Fund Advisors, an estimated $593K sold.

Based on aggregated 13F filings for Q2 2025.