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 ($17.9k this quarter). Holder counts are more reliable. Shares outstanding: 103.0m as of 2025-04-30, 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 ≈ $1.79. Options: 5 managers hold calls ($222.9k notional), 3 hold puts ($11.8k).
Trends to Q1 2025
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 63 | 58 |
| Q3 2023 | 58 | 48 |
| Q4 2023 | 52 | 47 |
| Q1 2024 | 46 | 61 |
| Q2 2024 | 55 | 55 |
| Q3 2024 | 60 | 43 |
| Q4 2024 | 53 | 51 |
| Q1 2025 | 58 | 55 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $531.5k | $25.1k | 0.05 |
| Q3 2024 | $47.9k | $24.0k | 0.50 |
| Q4 2024 | $162.2k | $15.8k | 0.10 |
| Q1 2025 | $222.9k | $11.8k | 0.05 |
Biggest buyers
| ARMISTICE CAPITAL, LLC | Added | +1.3m |
| Acuitas Investments, LLC | Added | +711.7k |
| UBS Group AG | Added | +477.7k |
| HEARTLAND ADVISORS INC | Added | +450.0k |
| BlackRock, Inc. | Added | +251.1k |
| Russell Investments Group, Ltd. | Added | +191.9k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +149.1k |
| AQR CAPITAL MANAGEMENT LLC | Added | +144.0k |
| MILLENNIUM MANAGEMENT LLC | Added | +137.5k |
| FMR LLC | Added | +108.9k |
Biggest sellers
| KENNEDY CAPITAL MANAGEMENT LLC | Reduced | -631.7k |
| Archon Capital Management LLC | Reduced | -458.7k |
| Foundry Partners, LLC | Reduced | -387.8k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -256.6k |
| GSA CAPITAL PARTNERS LLP | Sold out | -191.5k |
| CITADEL ADVISORS LLC | Reduced | -161.0k |
| Walleye Capital LLC | Reduced | -95.2k |
| MACKENZIE FINANCIAL CORP | Reduced | -85.2k |
| SILVERBACK ASSET MANAGEMENT LLC | Sold out | -69.1k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -65.0k |
Biggest calls
| PEAK6 LLC | Added | $150.5k84.1k shares |
| CITADEL ADVISORS LLC | Reduced | $26.1k14.6k shares |
| SIMPLEX TRADING, LLC | Added | $24.0k13.8k shares |
| GROUP ONE TRADING LLC | Added | $22.2k12.4k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $6.1k3.4k shares |
| GROUP ONE TRADING LLC | New | $5.7k3.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 in Q1 2025
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 |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 2 | $102.3k | — |
| Q3 2023 | 0 | — | 2 | $88.6k | — |
| Q4 2023 | 0 | — | 6 | $646.8k | — |
| Q1 2024 | 0 | — | 3 | $75.6k | — |
| Q2 2024 | 1 | $156.0k | 1 | $4.6k | — |
| Q3 2024 | 0 | — | 1 | $17.3k | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
None reported in Q1 2025.
Holders, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 8.9m $16.0m | Added +251.1k |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 5.5m $9.9m | Added +4.7k |
| VANGUARD GROUP INC 0.00% of their portfolio | 5.3m $9.5m | Added +5.1k |
| HEARTLAND ADVISORS INC 0.44% of their portfolio | 4.3m $7.7m | Added +450.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 2.7m $4.9m | Reduced -256.6k |
| ARMISTICE CAPITAL, LLC 0.12% of their portfolio | 2.5m $4.5m | Added +1.3m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.2m $4.0m | Added +60.9k |
| STATE STREET CORP 0.00% of their portfolio | 1.9m $3.5m | Added +50 |
| HARBERT FUND ADVISORS, LLC 3.84% of their portfolio | 1.8m $3.3m | Unchanged |
| Foundry Partners, LLC 0.17% of their portfolio | 1.8m $3.2m | Reduced -387.8k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 1.8m $3.2m | Unchanged |
| Acuitas Investments, LLC 2.17% of their portfolio | 1.4m $2.5m | Added +711.7k |
| DAFNA Capital Management LLC 0.62% of their portfolio | 1.2m $2.2m | Unchanged |
| UBS Group AG 0.00% of their portfolio | 1.1m $1.9m | Added +477.7k |
| North Star Investment Management Corp. 0.14% of their portfolio | 1.1m $1.9m | Added +10.0k |
| Kovack Advisors, Inc. 0.18% of their portfolio | 957.5k $1.7m | Reduced -10.4k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 813.3k $1.5m | Added +3.6k |
| FMR LLC 0.00% of their portfolio | 750.2k $1.3m | Added +108.9k |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 733.3k $1.3m | Reduced -85.2k |
| MORGAN STANLEY 0.00% of their portfolio | 577.2k $1.0m | Added +69.5k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 569.1k $1.0m | Reduced -65.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 477.9k $855.5k | Reduced -13.7k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio | 473.0k $846.6k | Added +149.1k |
| Silverberg Bernstein Capital Management LLC 0.75% of their portfolio | 451.4k $807.9k | Added +78.9k |
| Archon Capital Management LLC 0.81% of their portfolio | 430.0k $769.6k | Reduced -458.7k |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 364.3k $652.1k | Added +81.0k |
| Nuveen, LLC 0.00% of their portfolio | 340.3k $609.1k | First filing |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 278.4k $498.3k | Added +14.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 267.6k $479.0k | Added +24.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 260.1k $465.5k | Reduced -11 |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 239.1k $428.0k | Reduced -16.3k |
| Invesco Ltd. 0.00% of their portfolio | 216.5k $387.6k | Reduced -9.2k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 214.4k $383.8k | Added +8.1k |
| TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio | 211.6k $378.8k | Added +103.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 207.1k $370.7k | Reduced -9.4k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 206.3k $369.3k | Added +137.5k |
| BARCLAYS PLC 0.00% of their portfolio | 193.4k $346.2k | Reduced -33.4k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 192.9k $345.3k | Added +191.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 187.8k $336.2k | Added +52.8k |
| GLOBEFLEX CAPITAL L P 0.03% of their portfolio | 183.8k $328.9k | Unchanged |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 165.0k $295.3k | Reduced -47.3k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 162.9k $291.6k | Added +144.0k |
| PRIMECAP MANAGEMENT CO/CA/ 0.00% of their portfolio | 161.2k $288.5k | Reduced -1.1k |
| Bridge City Capital, LLC 0.07% of their portfolio | 136.5k $244.4k | Reduced -4.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 136.5k $244.3k | Reduced -10.3k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio | 131.7k $235.8k | Added +5.8k |
| XTX Topco Ltd 0.01% of their portfolio | 126.1k $225.8k | Added +71.3k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 122.7k $220.8k | Added +16.4k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 111.5k $199.6k | Added +78.7k |
| MARATHON CAPITAL MANAGEMENT 0.05% of their portfolio | 110.0k $196.9k | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 104.2k $187.0k | Added +7.1k |
| Perritt Capital Management Inc 0.09% of their portfolio | 95.0k $170.1k | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 94.2k $168.6k | First filing |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 93.1k $166.7k | Added +75.4k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 91.9k $164.6k | Added +74.6k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 91.7k $164.1k | Reduced -631.7k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 86.3k $154.4k | Reduced -161.0k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 83.1k $148.8k | Added +3.5k |
| Verition Fund Management LLC 0.00% of their portfolio | 81.2k $145.4k | Added +55.2k |
| CITIGROUP INC 0.00% of their portfolio | 69.3k $124.1k | Reduced -8.5k |
| SILVERBACK ASSET MANAGEMENT LLC 0.02% of their portfolio | 69.1k $123.6k | New |
| State of Wyoming 0.02% of their portfolio | 67.5k $120.8k | Reduced -32.2k |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 66.7k $119.4k | Added +20.0k |
| PERKINS CAPITAL MANAGEMENT INC 0.12% of their portfolio | 65.5k $117.2k | Reduced -2.5k |
| ALGERT GLOBAL LLC 0.00% of their portfolio | 60.9k $109.1k | Added +31.2k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 60.6k $108.5k | Added +18.5k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 57.2k $102.4k | Added +2.5k |
| Walleye Capital LLC 0.00% of their portfolio | 56.4k $101.0k | Reduced -95.2k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 55.3k $98.9k | Added +22.5k |
| Williams & Novak, LLC 0.10% of their portfolio | 55.0k $97.8k | Reduced -3.8k |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 50.8k $91.0k | Reduced -19.7k |
| Massar Capital Management, LP 0.10% of their portfolio | 48.5k $86.8k | New |
| WINTON GROUP Ltd 0.01% of their portfolio | 48.0k $85.8k | New |
| Corebridge Financial, Inc. 0.00% of their portfolio | 47.5k $85.0k | Reduced -704 |
| GABELLI FUNDS LLC 0.00% of their portfolio | 45.0k $80.5k | Unchanged |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 44.5k $79.7k | Added +5.3k |
| Teton Advisors, Inc. 0.05% of their portfolio | 43.5k $77.9k | Reduced -1.5k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 38.2k $68.4k | Reduced -10.0k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 37.2k $66.6k | Added +15.5k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 36.4k $65.1k | Reduced -3.2k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 35.0k $62.7k | Reduced -37.5k |
| SG Americas Securities, LLC 0.00% of their portfolio | 33.5k $60.0k | Reduced -11.5k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 31.8k $63.0k | Unchanged |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 30.9k $55.4k | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 29.1k $52.1k | Unchanged |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 28.1k $50.3k | Unchanged |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 26.6k $47.6k | Unchanged |
| CIBC WORLD MARKETS CORP 0.00% of their portfolio | 21.5k $38.5k | New |
| ProShare Advisors LLC 0.00% of their portfolio | 21.0k $37.6k | Reduced -6.3k |
| Squarepoint Ops LLC 0.00% of their portfolio | 20.2k $36.1k | Reduced -41.6k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 19.2k $34.3k | New |
| US BANCORP \DE\ 0.00% of their portfolio | 17.8k $31.9k | Unchanged |
| LPL Financial LLC 0.00% of their portfolio | 16.7k $30.0k | Added +1.7k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.00% of their portfolio | 16.2k $29.0k | Reduced -17.2k |
| R Squared Ltd 0.03% of their portfolio | 15.1k $26.9k | Added +3.7k |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 12.8k $22.9k | Reduced -498 |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 11.8k $21.1k | Added +4 |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 11.2k $20.0k | Reduced -638 |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 11.2k $20.0k | New |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 11.2k $20.0k | Added +8.5k |