Accuray

ARAY • NASDAQ

Accuray is a medical - specialties company in the healthcare sector on NASDAQ, led by Suzanne Winter, with a market cap of $124.7M. As of Q3 2025, 53% of shares are held by 123 institutional investors, with BlackRock, Inc. as the largest holder at 7.78%.

Chief Executive Officer and PresidentSuzanne Winter

Market Cap$124.7M

Medical - Specialties

Healthcare

Employees1.0K

Websiteaccuray.com

Country

United States of America

Overview

Overview of institutional ownership in ARAY as of Q3 2025 with a market cap of $188.2M

All Institutions

Institutions: 123
Value Held: $100.1M
Shares Held: 60.0M
Avg Position: $813.8K
Median Position: $91.4K

Hedge Funds

Hedge Funds: 16
Value Held: $19.0M
Shares Held: 11.4M
Avg Position: $1.2M
Median Position: $397.0K

Ownership Breakdown

Institutional (non-HF)

43.11%

$81.1M

Hedge Funds

10.09%

$19.0M

Retail & Other

46.8%

$88.1M

Based on market cap of $188.2M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in ARAY as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$14.6M 0.00% of portfolio	7.78% 8.8M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$9.1M 0.00% of portfolio	4.86% 5.5M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
N Neuberger Berman Group LLC Institution	-	$8.8M 0.01% of portfolio	4.69% 5.3M shares	≤ Q2 2013 Held for 12y 5m+	$136.94B
H HEARTLAND ADVISORS INC Long Only Manager	William Richard Nasgovitz CEO	$8.3M 0.44% of portfolio	4.43% 5.0M shares	≤ Q2 2013 Held for 12y 5m+	$1.9B
ARMISTICE CAPITAL, LLC Hedge Fund•Long/Short	Steven Joseph Boyd Managing Partner	$5.6M 0.18% of portfolio	2.95% 3.3M shares	Q2 2024 Held for 1y 5m	$3.2B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$4.2M 0.00% of portfolio	2.21% 2.5M shares	≤ Q2 2013 Held for 12y 5m+	$1.57T
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	Peter Fitzhugh Brown CEO	$4.1M 0.01% of portfolio	2.20% 2.5M shares	Q4 2013 Held for 11y 11m	$75.8B
A Acuitas Investments, LLC Fund of Funds	Lisa Marie Thenell COO	$4.0M 2.56% of portfolio	2.12% 2.4M shares	Q2 2023 Held for 2y 5m	$155.8M
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$3.3M 0.00% of portfolio	1.77% 2.0M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
D D. E. Shaw & Co., Inc. Institution	-	$3.0M 0.00% of portfolio	1.59% 1.8M shares	≤ Q2 2013 Held for 12y 5m+	$115.81B

Net Capital Flow

Institutional buying and selling activity for ARAY in Q3 2025

Traded: −$1.3M
Buyers: 62
Sellers: 57
Total Bought: +$8.5M
Total Sold: −$9.9M
Avg Position: $709.9K

Biggest Buyers

Institution	Net Bought	Current Position
A Acuitas Investments, LLC Fund of Funds	+$1.6M +966.1K shares	$4.0M 2.4M shares
N Nuveen, LLC Institution	+$1.1M +671.5K shares	$1.8M 1.1M shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$1.1M +662.5K shares	$1.1M 662.5K shares
A Assenagon Asset Management S.A. Institution	+$549.0K +328.7K shares	$824.5K 493.7K shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	+$440.6K +263.8K shares	$440.6K 263.8K shares
ACADIAN ASSET MANAGEMENT LLC Long Only Manager	+$368.9K +220.9K shares	$516.3K 309.1K shares
JACOBS LEVY EQUITY MANAGEMENT, INC Hedge Fund•Quant	+$300.2K +179.7K shares	$873.7K 523.1K shares
MORGAN STANLEY RIA/Wealth	+$241.1K +144.4K shares	$1.3M 755.6K shares
JPMORGAN CHASE & CO Institution	+$221.5K +132.6K shares	$304.8K 182.5K shares
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager	+$194.6K +116.5K shares	$637.1K 381.5K shares

Biggest Sellers

Institution	Net Sold	Current Position
UBS Group AG Institution	−$2.4M −1.4M shares	$624.3K 373.8K shares
HARBERT FUND ADVISORS, INC. Hedge Fund•Multi-Strategy	−$2.0M −1.4M shares	Sold Off 0 shares
T TENOR CAPITAL MANAGEMENT Co., L.P. Hedge Fund•Multi-Strategy	−$835.0K −500.0K shares	$1.7M 1.0M shares
C CSM Advisors, LLC Institution	−$529.3K −386.4K shares	Sold Off 0 shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$493.1K −295.3K shares	$257.9K 154.4K shares
B BlackRock, Inc. Institution	−$458.1K −274.3K shares	$14.6M 8.8M shares
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$430.8K −258.0K shares	$229.8K 137.6K shares
Archon Capital Management LLC Hedge Fund•Long/Short	−$407.7K −297.6K shares	Sold Off 0 shares
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC Long Only Manager	−$298.3K −178.6K shares	$174.8K 104.7K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	−$200.6K −120.1K shares	$4.1M 2.5M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited ARAY in Q3 2025

New Positions: 5
New Value: $60.4K
Exited Positions: 17
Exited Value: $3.3M

New Positions

Institution	Position Value
Voleon Capital Management LP Hedge Fund•Quant	$20.0K 12.0K shares
SRS Capital Advisors, Inc. RIA/Wealth	$19.6K 11.7K shares
A Abel Hall, LLC RIA/Wealth	$16.7K 10.0K shares
O Optiver Holding B.V. Institution	$2.9K 1.7K shares
Point72 Ltd RIA/Wealth	$1.3K 754.0 shares

Exited Positions

Institution	Previous Position
HARBERT FUND ADVISORS, INC. Hedge Fund•Multi-Strategy	$2.0M 1.4M shares
C CSM Advisors, LLC Institution	$529.3K 386.4K shares
Archon Capital Management LLC Hedge Fund•Long/Short	$407.7K 297.6K shares
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant	$83.5K 60.9K shares
V Virtu Financial LLC Institution	$51.3K 37.4K shares
PRIMECAP MANAGEMENT CO/CA/ Long Only Manager	$46.2K 33.7K shares
S STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Institution	$36.5K 26.6K shares
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC Hedge Fund•Distressed	$22.2K 16.2K shares
$US BANCORP \DE\ logo$ US BANCORP \DE\ Institution	$20.5K 15.0K shares
W Winton Capital Group Ltd Institution	$19.3K 14.1K shares

Options Activity

Institutions with the largest Call and Put options positions in ARAY as of Q3 2025

Call Positions: 1
Call Value: -
Put Positions: 1
Put Value: -

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	- - contracts

Put Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	- - contracts

Most Committed Institutions

Institutions with ARAY as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
SILVERBACK ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	Elliot Glen Bossen CEO	6.58% $1.8M	0.95% 1.1M shares	Q4 2024 Held for 11 months	$27.0M
A Acuitas Investments, LLC Fund of Funds	Lisa Marie Thenell COO	2.56% $4.0M	2.12% 2.4M shares	Q2 2023 Held for 2y 5m	$155.8M
S Silverberg Bernstein Capital Management LLC RIA/Wealth	Irwin Warren Silverberg Managing Partner	0.65% $1.1M	0.56% 633.2K shares	Q4 2023 Held for 1y 11m	$163.4M
D DAFNA Capital Management LLC Hedge Fund•Event Driven	Nathan Fischel CEO	0.51% $2.0M	1.08% 1.2M shares	Q2 2019 Held for 6y 5m	$397.7M
H HEARTLAND ADVISORS INC Long Only Manager	William Richard Nasgovitz CEO	0.44% $8.3M	4.43% 5.0M shares	≤ Q2 2013 Held for 12y 5m+	$1.9B
T TENOR CAPITAL MANAGEMENT Co., L.P. Hedge Fund•Multi-Strategy	Robin Rajendra Shah CIO	0.21% $1.7M	0.89% 1.0M shares	Q2 2025 Held for 5 months	$806.7M
ARMISTICE CAPITAL, LLC Hedge Fund•Long/Short	Steven Joseph Boyd Managing Partner	0.18% $5.6M	2.95% 3.3M shares	Q2 2024 Held for 1y 5m	$3.2B
Kovack Advisors, Inc. RIA/Wealth	Brian John Kovack President	0.16% $1.7M	0.91% 1.0M shares	Q3 2020 Held for 5y 2m	$1.1B
North Star Investment Management Corp. RIA/Wealth	Peter David Gottlieb President	0.12% $1.9M	1.03% 1.2M shares	Q1 2022 Held for 3y 8m	$1.6B
PERKINS CAPITAL MANAGEMENT INC RIA/Wealth	Harry Allen Lee Lindberg President	0.10% $118.2K	0.06% 70.8K shares	Q2 2022 Held for 3y 5m	$113.5M

Hedge Fund Spotlight

Discover hedge funds investing in ARAY

SILVERBACK ASSET MANAGEMENT LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerElliot Glen Bossen

Portfolio Value: $27.0M
Positions: 9
Last Reported: Q3 2025

Sector Allocation

Position in Accuray

Market Value: $1.8M
Shares Held: 1.1M
Portfolio Weight: 6.58%
Owned Since: 2024-Q4

Top Holding	Sector	Market Value	Weight
1 Vroom, Inc. VRM	Auto - Dealerships Consumer Cyclical	$11.2M	41.47%
2 Harmonic HLIT	Communication Equipment Technology	$6.9M	25.39%
3 Accuray ARAY	Medical - Specialties Healthcare	$1.8M	6.58%