ACCURAY INC ARAY
COM · Common Stock · CUSIP 004397105
American radiation therapy company
- SectorHealth care
- IndustrySurgical & Medical Instruments & Apparatus
- HeadquartersMadison, WI
- Websiteaccuray.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($9.2k this quarter). Holder counts are more reliable. Shares outstanding: 119.4m as of 2026-08-21, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $0.25. Options: 2 managers hold calls ($8.2k notional), 1 hold puts ($516).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 106 |
| Q4 2022 | 109 |
| Q1 2023 | 115 |
| Q2 2023 | 117 |
| Q3 2023 | 115 |
| Q4 2023 | 128 |
| Q1 2024 | 118 |
| Q2 2024 | 116 |
| Q3 2024 | 127 |
| Q4 2024 | 133 |
| Q1 2025 | 130 |
| Q2 2025 | 128 |
| Q3 2025 | 129 |
| Q4 2025 | 125 |
| Q1 2026 | 125 |
| Q2 2026 | 111 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 60 | 43 |
| Q4 2024 | 53 | 51 |
| Q1 2025 | 58 | 55 |
| Q2 2025 | 57 | 59 |
| Q3 2025 | 63 | 58 |
| Q4 2025 | 50 | 70 |
| Q1 2026 | 66 | 57 |
| Q2 2026 | 61 | 67 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $114.6k | $1.0k | 0.01 |
| Q4 2025 | $97.7k | $490.2k | 5.02 |
| Q1 2026 | $15.9k | $11.1k | 0.70 |
| Q2 2026 | $8.2k | $516 | 0.06 |
Biggest buyers
| TCW GROUP INC | Added | +3.5m |
| JANE STREET GROUP, LLC | New | +2.1m |
| AQR CAPITAL MANAGEMENT LLC | Added | +2.1m |
| MILLENNIUM MANAGEMENT LLC | New | +1.6m |
| Squarepoint Ops LLC | Added | +901.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +791.8k |
| Qube Research & Technologies Ltd | New | +347.5k |
| Kovack Advisors, Inc. | Added | +312.8k |
| JPMORGAN CHASE & CO | Added | +296.9k |
| IEQ CAPITAL, LLC | Added | +289.8k |
Biggest sellers
| BlackRock, Inc. | Reduced | -5.2m |
| MACKENZIE FINANCIAL CORP | Sold out | -2.3m |
| HEARTLAND ADVISORS INC | Sold out | -2.0m |
| STATE STREET CORP | Reduced | -1.5m |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | -1.2m |
| Parkman Healthcare Partners LLC | Sold out | -884.6k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Sold out | -595.2k |
| NORTHERN TRUST CORP | Reduced | -453.5k |
| ACADIAN ASSET MANAGEMENT LLC | Sold out | -394.3k |
| Mitsubishi UFJ Asset Management Co., Ltd. | Sold out | -334.0k |
Biggest calls
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | New | $5.2k20.0k shares |
| JANE STREET GROUP, LLC | New | $3.1k12.0k shares |
Biggest puts
| SIMPLEX TRADING, LLC | New | $5162.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
TCW GROUP INC
13D · may seek influence
+5.0 pts · filed 2026-09-02
Stated purposeThe disclosure in Item 4 is supplemented by adding the following: Reference is made to the disclosure set forth in Items 3, 5, and 6 of this Amendment No. 3, which is incorporated herein by reference. The purpose of the issuance of the July Penny Warrants was to incentivize the holders thereof (or their affiliates) to invest in the Issuer pursuant to the Purchase Agreement and to enter into the Limited Waiver and Amendment No. 3 to Financing Agreement (the "Third Amendment") in respect of the Financing Agreement, dated as of June 6, 2025 (as amended by the Third Amendment, and as further amended, amended and restated, supplemented, revised, or otherwise modified from time to time, the "Financing Agreement"), by and among the Issuer, the guarantors party thereto, and TCW Asset Management … Full filing |
18.7% |
Fell to 5% or below in the last year: Neuberger Berman Group LLC (4.6%, 2026-08-05), BlackRock, Inc. (1.7%, 2026-07-27), VANGUARD GROUP INC (0.0%, 2026-03-26)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 1 | $62.5k | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 1 | $19.4k | 0 | — | — |
| Q1 2026 | 1 | $134.1k | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| TCW GROUP INC 0.03% of their portfolio | 18.9m $4.1m | Added +3.5m |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 6.1m $1.6m | Added +218.6k |
| ARMISTICE CAPITAL, LLC 0.04% of their portfolio | 5.7m $1.5m | Added +100.0k |
| WEBER CAPITAL MANAGEMENT LLC /ADV 1.08% of their portfolio | 4.9m $1.3m | Reduced -122.6k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 4.4m $1.1m | Added +7.4k |
| BlackRock, Inc. 0.00% of their portfolio | 3.3m $842.0k | Reduced -5.2m |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 2.7m $701.0k | Added +2.1m |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 2.1m $551.6k | New |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 2.1m $532.4k | Reduced -225.7k |
| DAFNA Capital Management LLC 0.08% of their portfolio | 1.7m $433.2k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 1.6m $419.0k | Added +222.2k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 1.6m $409.7k | New |
| SILVERBACK ASSET MANAGEMENT LLC 0.05% of their portfolio | 1.4m $373.8k | Reduced -200.0k |
| Squarepoint Ops LLC 0.00% of their portfolio | 1.4m $373.4k | Added +901.2k |
| FMR LLC 0.00% of their portfolio | 1.4m $354.7k | Added +87.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.2m $306.7k | Reduced -1.2m |
| Kovack Advisors, Inc. 0.01% of their portfolio | 1.1m $272.7k | Added +312.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 825.6k $212.8k | Added +791.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 803.0k $207.0k | Reduced -58.7k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 685.3k $176.8k | Reduced -80.2k |
| Silverberg Bernstein Capital Management LLC 0.07% of their portfolio | 658.9k $169.9k | Added +3.2k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 649.4k $167.4k | Reduced -194.3k |
| TENOR CAPITAL MANAGEMENT Co., L.P. 0.00% of their portfolio | 500.0k $128.9k | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 485.9k $125.3k | Reduced -1.5m |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 408.0k $105.2k | Added +204.0k |
| TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio | 392.2k $101.1k | Added +180.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 376.7k $97.8k | Added +296.9k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 347.5k $89.6k | New |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 333.3k $85.9k | Added +289.8k |
| North Star Investment Management Corp. 0.00% of their portfolio | 264.6k $68.2k | Added +100.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 263.6k $67.9k | Reduced -453.5k |
| MORGAN STANLEY 0.00% of their portfolio | 257.0k $66.3k | Reduced -31.8k |
| Williams & Novak, LLC 0.04% of their portfolio | 238.2k $61.4k | Added +56.2k |
| BARCLAYS PLC 0.00% of their portfolio | 172.6k $44.5k | Reduced -12.0k |
| XTX Topco Ltd 0.00% of their portfolio | 160.9k $41.5k | New |
| Mariner, LLC 0.00% of their portfolio | 127.4k $32.9k | Added +78.2k |
| Invesco Ltd. 0.00% of their portfolio | 118.7k $30.6k | Reduced -209.5k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 111.5k $28.7k | Reduced -36.0k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 111.4k $29.0k | Unchanged |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 110.6k $28.4k | Reduced -61.5k |
| Cerity Partners LLC 0.00% of their portfolio | 104.7k $27.0k | Added +69.3k |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 95.0k $19.1k | Added +80.3k |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 87.7k $22.6k | Reduced -44.6k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 54.6k $14.1k | Added +23.7k |
| Virtu Financial LLC 0.00% of their portfolio | 54.5k $14.0k | New |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 52.3k $13.5k | Added +35.4k |
| Janney Montgomery Scott LLC 0.00% of their portfolio | 50.0k $13.0k | Unchanged |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 47.6k $12.3k | New |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio | 43.9k $11.3k | Reduced -118.6k |
| GABELLI FUNDS LLC 0.00% of their portfolio | 43.8k $11.3k | Unchanged |
| Creative Planning 0.00% of their portfolio | 42.7k $11.0k | Added +28.6k |
| Callan Family Office, LLC 0.00% of their portfolio | 42.4k $10.9k | New |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 41.2k $10.6k | Unchanged |
| CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio | 38.6k $10.0k | New |
| Arax Advisory Partners 0.00% of their portfolio | 36.6k $9.4k | Added +36.5k |
| LPL Financial LLC 0.00% of their portfolio | 34.5k $8.9k | Added +20.0k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 34.1k $9.0k | Unchanged |
| StoneX Group Inc. 0.00% of their portfolio | 33.1k $12.1k | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 31.6k $8.1k | New |
| BRIGHTON JONES LLC 0.00% of their portfolio | 27.6k $7.1k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 24.7k $6.4k | Reduced -26.1k |
| Pallas Capital Advisors LLC 0.00% of their portfolio | 24.6k $6.3k | New |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 23.4k $6.0k | Unchanged |
| HARBOUR INVESTMENTS, INC. 0.00% of their portfolio | 23.3k $6.0k | Reduced -32 |
| Merit Financial Group, LLC 0.00% of their portfolio | 22.4k $5.8k | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 22.0k $5.7k | Reduced -66.9k |
| OPPENHEIMER & CO INC 0.00% of their portfolio | 21.0k $5.4k | Unchanged |
| PERKINS CAPITAL MANAGEMENT INC 0.00% of their portfolio | 20.0k $5.2k | Reduced -32.5k |
| R Squared Ltd 0.00% of their portfolio | 19.4k $5.0k | Reduced -1.1k |
| Corient Private Wealth LP 0.00% of their portfolio | 18.6k $4.8k | New |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 18.3k $4.7k | Reduced -276.6k |
| Teton Advisors, LLC 0.00% of their portfolio | 18.0k $4.6k | Unchanged |
| SG Americas Securities, LLC 0.00% of their portfolio | 16.0k $4.0k | New |
| Focus Partners Wealth 0.00% of their portfolio | 15.9k $4.1k | New |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 15.0k $3.9k | New |
| NorthCrest Asset Manangement, LLC 0.00% of their portfolio | 14.3k $3.8k | New |
| Associated Banc-Corp 0.00% of their portfolio | 13.7k $3.5k | Unchanged |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 13.3k $3.4k | Unchanged |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 13.0k $3.4k | New |
| Krilogy Financial LLC 0.00% of their portfolio | 11.7k $3.0k | New |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 10.9k $2.8k | Added +483 |
| Algorithmic Investment Models, LLC 0.00% of their portfolio | 10.6k $2.7k | New |
| Proficio Capital Partners LLC 0.00% of their portfolio | 10.5k $2.7k | New |
| MML INVESTORS SERVICES, LLC 0.00% of their portfolio | 10.0k $2.6k | Unchanged |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 9.3k $2.4k | Added +6.4k |
| Allworth Financial LP 0.00% of their portfolio | 7.8k $2.0k | Added +3.9k |
| Essential Partners LLC 0.00% of their portfolio | 7.4k $1.9k | Added +7.1k |
| Global Retirement Partners, LLC 0.00% of their portfolio | 5.3k $1.4k | First filing |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 4.8k $1.2k | Added +3.5k |
| Optiver Holding B.V. 0.00% of their portfolio | 3.4k $875 | Added +1.7k |
| True Wealth Design, LLC 0.00% of their portfolio | 1.7k $428 | Added +1.6k |
| FIFTH THIRD BANCORP 0.00% of their portfolio | 1.6k $410 | Reduced -2.7k |
| Crews Bank & Trust 0.00% of their portfolio | 1.5k $387 | Unchanged |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 1.5k $385 | Added +1.1k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 1.0k $260 | Unchanged |
| Larson Financial Group LLC 0.00% of their portfolio | 920 $237 | Unchanged |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 882 $227 | Reduced -564 |
| ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio | 748 $193 | Added +502 |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 682 $175 | Reduced -68.7k |
| Fortitude Family Office, LLC 0.00% of their portfolio | 639 $165 | New |