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Accuray (ARAY) Institutional Ownership

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$0.18 -0.01 (-5.41%)
As of 12:04 PM Eastern
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Institutional Ownership Changes (13F Filings) for Accuray (NASDAQ:ARAY)

Current
Institutional Ownership
Percentage
64.08%
Number of
Institutional Buyers
(last 12 months)
39
Total
Institutional Inflows
(last 12 months)
$19.10M
Number of
Institutional Sellers
(last 12 months)
18
Total
Institutional Outflows
(last 12 months)
$8.81M
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Skip Chart & View Institutional Buying and Selling Data

ARAY Institutional Buying and Selling by Quarter

Accuray Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/9/2026Williams & Novak Wealth Management LLC303,330$82K0.0%+27.3%0.254%
9/9/2026Squarepoint Ops LLC1,448,234$373K0.0%+164.7%1.213%
8/20/2026Susquehanna International Group LLP825,604$213K0.0%+2,344.3%0.694%
8/17/2026Bank of America Corp DE110,614$28K0.0%N/A0.093%
8/14/2026Hsbc Holdings PLC111,442$29K0.0%N/A0.094%
8/13/2026Weber Capital Management LLC ADV4,932,706$1.27M0.0%N/A4.147%
8/12/2026Ieq Capital LLC333,267$86K0.0%N/A0.280%
8/7/2026BlackRock Inc.3,266,185$842K0.0%N/A2.746%
7/8/2026Williams & Novak LLC238,230$61K0.0%+30.9%0.200%
5/21/2026Silverback Asset Management LLC1,650,000$640K0.1%+7.7%1.387%
5/14/2026Renaissance Technologies LLC2,290,984$889K0.0%-6.6%1.926%
5/7/2026Heartland Advisors Inc.1,977,450$767K0.0%-40.6%1.665%
4/23/2026North Star Investment Management Corp.164,620$64K0.0%-75.9%0.139%
2/23/2026Virtu Financial LLC166,673$137K0.0%N/A0.140%
2/19/2026Invesco Ltd.245,000$202K0.0%+52.7%0.216%
2/18/2026Mackenzie Financial Corp1,918,086$1.54M0.0%+76.5%1.692%
2/18/2026TENOR CAPITAL MANAGEMENT Co. L.P.500,000$412K0.0%-50.0%0.441%
2/18/2026Oxford Asset Management LLP53,526$44K0.0%N/A0.047%
2/18/2026Bridgeway Capital Management LLC174,425$144K0.0%+34.8%0.154%
2/18/2026Armistice Capital LLC4,500,000$3.71M0.0%+35.4%3.970%
2/17/2026Schonfeld Strategic Advisors LLC294,720$243K0.0%N/A0.260%
2/17/2026AQR Capital Management LLC42,653$35K0.0%-69.0%0.038%
2/17/2026TCW Group Inc.15,467,952$12.68M0.1%+29.9%13.647%
2/17/2026Kovack Advisors Inc.953,075$786K0.0%-7.1%0.841%
2/17/2026Public Employees Retirement System of Ohio77,600$64K0.0%+267.8%0.068%
2/16/2026Panagora Asset Management Inc.84,989$70K0.0%+33.6%0.075%
2/13/2026Wells Fargo & Company MN220,009$181K0.0%-38.2%0.194%
2/12/2026Jane Street Group LLC328,043$271K0.0%+164.7%0.289%
2/12/2026Renaissance Technologies LLC2,452,607$2.02M0.0%-1.3%2.164%
2/12/2026Dimensional Fund Advisors LP294,963$243K0.0%-13.1%0.260%
2/12/2026Kovack Advisors Inc.953,075$766K0.0%-7.1%0.841%
2/12/2026Nuveen LLC293,679$242K0.0%-73.4%0.259%
2/11/2026Heartland Advisors Inc.3,328,307$2.75M0.1%-33.4%2.937%
2/11/2026Janney Montgomery Scott LLC50,032$41K0.0%N/A0.044%
2/11/2026LPL Financial LLC34,025$28K0.0%-42.3%0.030%
2/10/2026Goldman Sachs Group Inc.773,774$638K0.0%+34.8%0.683%
2/5/2026Williams & Novak LLC118,855$98K0.1%+53.5%0.105%
2/4/2026Perkins Capital Management Inc.86,500$71K0.1%+22.2%0.076%
2/3/2026Mitsubishi UFJ Asset Management Co. Ltd.283,595$241K0.0%+194.2%0.250%
1/30/2026North Star Investment Management Corp.684,320$564K0.0%-41.1%0.604%
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1/29/2026Weber Capital Management LLC ADV5,055,294$4.17M3.9%N/A4.460%
1/12/2026Silverberg Bernstein Capital Management LLC648,548$535K0.3%+2.4%0.572%
1/9/2026Assenagon Asset Management S.A.205,228$169K0.0%-58.4%0.181%
1/1/2026JPMorgan Chase & Co.182,494$305K0.0%+266.0%0.161%
11/18/2025Acuitas Investments LLC2,392,126$4.00M2.6%+67.7%2.111%
11/17/2025Jacobs Levy Equity Management Inc.523,145$874K0.0%+52.3%0.462%
11/17/2025Armistice Capital LLC3,324,000$5.55M0.1%+2.7%2.933%
11/17/2025Susquehanna International Group LLP189,388$316K0.0%-19.8%0.167%
11/17/2025Public Employees Retirement System of Ohio21,100$35K0.0%N/A0.019%
11/17/2025Millennium Management LLC154,415$258K0.0%-65.7%0.136%
11/17/2025Citadel Advisors LLC662,499$1.11M0.0%-9,301.4%0.585%
11/17/2025Ameriprise Financial Inc.43,582$73K0.0%N/A0.038%
11/14/2025TENOR CAPITAL MANAGEMENT Co. L.P.1,000,000$1.67M0.0%-33.3%0.882%
11/14/2025Two Sigma Investments LP263,845$441K0.0%N/A0.233%
11/14/2025Bridgeway Capital Management LLC129,400$216K0.0%-39.6%0.114%
11/14/2025Silverback Asset Management LLC1,066,054$1.78M0.2%-8.6%0.941%
11/13/2025UBS Group AG373,832$624K0.0%-79.0%0.330%
11/13/2025BNP Paribas Financial Markets39,369$66K0.0%+32.4%0.035%
11/13/2025Mackenzie Financial Corp1,086,866$1.82M0.0%-2.6%0.959%
11/13/2025Russell Investments Group Ltd.226,467$378K0.0%+17.7%0.200%
11/12/2025Teton Advisors LLC40,000$67K0.0%N/A0.035%
11/12/2025Dimensional Fund Advisors LP339,293$566K0.0%-21.9%0.299%
11/12/2025R Squared Ltd40,550$68K0.0%+94.0%0.036%
11/12/2025Intech Investment Management LLC48,690$81K0.0%-22.9%0.043%
11/10/2025Kovack Advisors Inc.1,025,875$1.71M0.2%-4.8%0.905%
11/7/2025Heartland Advisors Inc.4,996,500$8.34M0.4%-1.2%4.433%
11/7/2025GSA Capital Partners LLP80,701$135K0.0%N/A0.072%
11/7/2025Vanguard Group Inc.5,476,677$9.15M0.0%+2.0%4.859%
11/7/2025JPMorgan Chase & Co.182,494$305K0.0%+266.0%0.162%
11/5/2025Envestnet Asset Management Inc.59,204$99K0.0%+408.0%0.053%
11/3/2025Acuitas Investments LLC2,392,126$4.00M1.7%+67.7%2.122%
10/30/2025Williams & Novak LLC77,430$129K0.1%+12.3%0.069%
10/22/2025North Star Investment Management Corp.1,162,320$1.94M0.1%-2.6%1.031%
10/9/2025Voya Investment Management LLC21,433$36K0.0%-29.8%0.019%
10/7/2025Silverberg Bernstein Capital Management LLC633,248$1.06M0.6%+9.3%0.562%
10/7/2025Assenagon Asset Management S.A.493,727$825K0.0%+199.2%0.438%
8/15/2025Tower Research Capital LLC TRC 35,177$48K0.0%+604.2%0.031%
8/15/2025BNP Paribas Financial Markets29,736$41K0.0%-68.4%0.026%
8/15/2025Bank of America Corp DE127,849$175K0.0%-6.3%0.114%
8/14/2025Jane Street Group LLC28,779$39K0.0%-68.7%0.026%
8/14/2025TENOR CAPITAL MANAGEMENT Co. L.P.1,500,000$2.06M0.0%N/A1.332%
8/14/2025Globeflex Capital L P248,265$340K0.0%+35.1%0.220%
8/14/2025Armistice Capital LLC3,236,000$4.43M0.1%+27.6%2.873%
8/14/2025Sei Investments Co.93,843$129K0.0%+83.0%0.083%
8/14/2025Marathon Capital Management100,000$137K0.0%-9.1%0.089%
8/13/2025Archon Capital Management LLC297,560$408K0.3%-30.8%0.264%
8/13/2025Marshall Wace LLP598,293$820K0.0%N/A0.531%
8/13/2025Invesco Ltd.175,134$240K0.0%-19.1%0.155%
8/13/2025Silverback Asset Management LLC1,166,054$1.60M0.2%+1,588.4%1.035%
8/12/2025JPMorgan Chase & Co.49,866$68K0.0%-81.4%0.044%
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8/12/2025Dynamic Technology Lab Private Ltd112,072$154K0.0%N/A0.099%
8/11/2025Primecap Management Co. CA33,700$46K0.0%-79.1%0.030%
8/8/2025Geode Capital Management LLC2,421,724$3.32M0.0%+7.8%2.150%
8/7/2025CSM Advisors LLC386,350$527K0.0%N/A0.343%
8/7/2025Connor Clark & Lunn Investment Management Ltd.536,102$734K0.0%+47.2%0.476%
8/7/2025Mitsubishi UFJ Asset Management Co. Ltd.96,099$132K0.0%-27.1%0.085%
8/7/2025Los Angeles Capital Management LLC283,302$388K0.0%+18.5%0.252%
8/4/2025Kovack Advisors Inc.1,077,475$1.48M0.1%+12.5%0.957%
7/24/2025Williams & Novak LLC68,970$94K0.1%+25.5%0.067%
7/15/2025North Star Investment Management Corp.1,192,820$1.63M0.1%+12.7%1.158%


ARAY Institutional Ownership - Frequently Asked Questions

During the previous two years, 95 institutional investors and hedge funds held shares of Accuray. The most heavily invested institutionals were TCW Group Inc. ($12.68M), Vanguard Group Inc. ($9.15M), Acuitas Investments LLC ($4.00M), Armistice Capital LLC ($3.71M), D. E. Shaw & Co. Inc. ($3.55M), State Street Corp ($3.41M), and Royce & Associates LP ($3.39M).Learn more on Accuray's institutional investors.

64.08% of Accuray's stock is owned by institutional investors. Learn more on ARAY's institutional investor holdings.

Of the 81 institutional investors that purchased Accuray's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Weber Capital Management LLC ADV ($9.99M), TCW Group Inc. ($3.56M), BlackRock Inc. ($3.27M), Armistice Capital LLC ($3.26M), Acuitas Investments LLC ($2.64M), Mackenzie Financial Corp ($1.54M), and TENOR CAPITAL MANAGEMENT Co. L.P. ($1.50M).

Institutional investors have bought a total of 26,552,608 shares in the last 24 months. This purchase volume represents approximately $19.10M in transactions.

Of the 18 institutional investors that sold Accuray's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Heartland Advisors Inc. ($3.08M), UBS Group AG ($1.41M), North Star Investment Management Corp. ($1.03M), TENOR CAPITAL MANAGEMENT Co. L.P. ($1M), Nuveen LLC ($810.48K), Millennium Management LLC ($295.29K), and Assenagon Asset Management S.A. ($288.50K).

Institutional investors have sold a total of 8,971,357 shares in the last 24 months. This volume of shares sold represents approximately $8.81M in transactions.


Related Companies

Institutional ownership data for NASDAQ:ARAY is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/9/2026. New 13F filings are added each quarter as they're published.
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