ACCURAY INC (ARAY) Institutional Ownership Changes & 13F Activity

ACCURAY INC (ARAY). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Armistice Capital, Llc, Mackenzie Financial Corp, D. E. Shaw & Co., Inc., Silverback Asset Management Llc, and Dafna Capital Management Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Hsbc Holdings PlcBuy+111,442—111,442$93.84KQ4 2025Mar 06, 2026
Virtu Financial LlcBuy+166,673—166,673$137.00KQ4 2025Feb 23, 2026
Mackenzie Financial CorpBuy+1,918,086—1,918,086$1.54MQ4 2025Feb 18, 2026
Armistice Capital, LlcBuy+4,500,000—4,500,000$3.71MQ4 2025Feb 17, 2026
D. E. Shaw & Co., Inc.Buy+1,683,269—1,683,269$1.39MQ4 2025Feb 17, 2026
Silverback Asset Management LlcBuy+1,532,519—1,532,519$1.26MQ4 2025Feb 17, 2026
Dafna Capital Management LlcBuy+1,395,508—1,395,508$1.15MQ4 2025Feb 17, 2026
Fmr LlcBuy+1,063,632—1,063,632$877.07KQ4 2025Feb 17, 2026
Citadel Advisors LlcBuy+892,328—892,328$735.81KQ4 2025Feb 17, 2026
Parkman Healthcare Partners LlcBuy+852,012—852,012$702.57KQ4 2025Feb 17, 2026
Northern Trust CorpBuy+760,594—760,594$627.19KQ4 2025Feb 17, 2026
Tenor Capital Management Co., L.P.Buy+500,000—500,000$412.30KQ4 2025Feb 17, 2026
Schonfeld Strategic Advisors LlcBuy+294,720—294,720$243.02KQ4 2025Feb 17, 2026
Two Sigma Investments, LpBuy+236,520—236,520$195.03KQ4 2025Feb 17, 2026
Tudor Investment Corp Et AlBuy+211,597—211,597$174.48KQ4 2025Feb 17, 2026
Ameriprise Financial IncBuy+183,537—183,537$151.34KQ4 2025Feb 17, 2026
Bridgeway Capital Management, LlcBuy+174,425—174,425$143.83KQ4 2025Feb 17, 2026
Bank Of America CorpBuy+156,671—156,671$129.10KQ4 2025Feb 17, 2026
Two Sigma Advisers, LpBuy+139,413—139,413$114.96KQ4 2025Feb 17, 2026
Susquehanna International Group, LlpBuy+81,585—81,585$67.28KQ4 2025Feb 17, 2026
Public Employees Retirement System Of OhioBuy+77,600—77,600$63.99KQ4 2025Feb 17, 2026
Canada Pension Plan Investment BoardBuy+61,100—61,100$50.38KQ4 2025Feb 17, 2026
Alliancebernstein L.P.Buy+54,730—54,730$45.13KQ4 2025Feb 17, 2026
Price T Rowe Associates IncBuy+50,833—50,833$42.00KQ4 2025Feb 17, 2026
Mirae Asset Global Etfs Holdings Ltd.Buy+46,008—46,008$37.94KQ4 2025Feb 17, 2026
Aqr Capital Management LlcBuy+42,653—42,653$35.17KQ4 2025Feb 17, 2026
Xtx Topco LtdBuy+37,285—37,285$30.75KQ4 2025Feb 17, 2026
Graham Capital Management, L.P.Buy+23,748—23,748$19.58KQ4 2025Feb 17, 2026
Sagewood Asset Management LpBuy+22,793—22,793$18.80KQ4 2025Feb 17, 2026
Engineers Gate Manager LpBuy+16,810—16,810$13.86KQ4 2025Feb 17, 2026
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Frequently asked questions about ARAY activity

  • Which institutional owners are buying ARAY?

    Institutional owners buying ARAY include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ARAY activity?

    "Buy" means an investor increased their reported position in ARAY compared to the prior reporting period. This reflects growing exposure to ACCURAY INC (ARAY) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ARAY increasing?

    Institutional interest in ARAY can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.