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Accuray Inc

ARAY
Exchange
Nasdaq
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001138723

No open-market purchases or sales by Accuray Inc insiders were filed in the last 90 days; 111 institutions reported holding it in 13F filings for Q2 2026, worth $17.6M in total; no superinvestor holds it.

13F holders, Q1 2021

Institutional positions in Accuray Inc as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
136
No complete 13F data for Q4 2020
Shares held
69.1M
No complete 13F data for Q4 2020
Total value
$342.0M
No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting ARAY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 136 institutions
Q1 2021: 136 institutionsQ2 2021: 130 institutionsQ3 2021: 133 institutionsQ4 2021: 142 institutionsQ1 2022: 144 institutionsQ2 2022: 123 institutionsQ3 2022: 106 institutionsQ4 2022: 108 institutionsQ1 2023: 114 institutionsQ2 2023: 116 institutionsQ3 2023: 114 institutionsQ4 2023: 127 institutionsQ1 2024: 117 institutionsQ2 2024: 115 institutionsQ3 2024: 126 institutionsQ4 2024: 132 institutionsQ1 2025: 129 institutionsQ2 2025: 127 institutionsQ3 2025: 129 institutionsQ4 2025: 125 institutionsQ1 2026: 125 institutionsQ2 2026: 111 institutions
Value heldQ1 2021: $342.0M
Q1 2021: $342.0MQ2 2021: $319.1MQ3 2021: $266.0MQ4 2021: $332.7MQ1 2022: $231.6MQ2 2022: $120.6MQ3 2022: $123.7MQ4 2022: $119.5MQ1 2023: $177.9MQ2 2023: $257.8MQ3 2023: $174.2MQ4 2023: $179.6MQ1 2024: $153.0MQ2 2024: $102.9MQ3 2024: $99.5MQ4 2024: $108.5MQ1 2025: $102.6MQ2 2025: $94.6MQ3 2025: $101.2MQ4 2025: $60.5MQ1 2026: $27.4MQ2 2026: $17.6M
Institutions holding ARAY and their total value by quarter
QuarterHoldersValue
Q2 2026111$17.6M
Q1 2026125$27.4M
Q4 2025125$60.5M
Q3 2025129$101.2M
Q2 2025127$94.6M
Q1 2025129$102.6M
Q4 2024132$108.5M
Q3 2024126$99.5M
Q2 2024115$102.9M
Q1 2024117$153.0M
Q4 2023127$179.6M
Q3 2023114$174.2M
Q2 2023116$257.8M
Q1 2023114$177.9M
Q4 2022108$119.5M
Q3 2022106$123.7M
Q2 2022123$120.6M
Q1 2022144$231.6M
Q4 2021142$332.7M
Q3 2021133$266.0M
Q2 2021130$319.1M
Q1 2021136$342.0M

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Accuray Inc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ARAY in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.8,327,279$41.2M0.00%––
Neuberger Berman Group LLC5,229,692$25.7M0.02%––
Vanguard Group Inc4,737,180$23.4M0.00%––
Archon Capital Management LLC4,582,668$22.7M5.37%––
Renaissance Technologies LLC3,611,084$17.9M0.02%––
Heartland Advisors Inc3,407,500$16.9M1.07%––
Dimensional Fund Advisors LP2,437,784$12.1M0.00%––
D. E. Shaw & Co., Inc.2,128,272$10.5M0.01%––
HealthInvest Partners AB1,975,000$9.78M7.79%––
Royce & Associates LP1,908,994$9.45M0.06%––
State Street Corp1,827,759$9.05M0.00%––
Geode Capital Management, LLC1,803,487$8.93M0.00%––
Jacobs Levy Equity Management, Inc1,592,000$7.88M0.06%––
Primecap Management Co1,537,900$7.61M0.01%––
Wellington Management Group LLP1,495,200$7.40M0.00%––
Walthausen & Co., LLC1,404,130$6.95M1.46%––
Acadian Asset Management LLC1,300,939$6.44M0.03%––
Millennium Management LLC1,045,683$5.18M0.01%––
Northern Trust Corp976,753$4.83M0.00%––
JPMorgan Chase & Co969,047$4.80M0.00%––
DAFNA Capital Management LLC941,800$4.66M1.11%––
Two Sigma Investments, LP888,973$4.40M0.01%––
Charles Schwab Investment Management Inc882,552$4.37M0.00%––
Two Sigma Advisers, LP830,713$4.11M0.01%––
Lapides Asset Management, LLC780,200$3.86M1.62%––
Kovack Advisors, Inc.712,600$3.53M0.46%––
Bank of New York Mellon Corp600,937$2.97M0.00%––
AQR Capital Management LLC538,728$2.67M0.00%––
Russell Investments Group, Ltd.500,382$2.48M0.00%––
State Board of Administration of Florida Retirement System495,172$2.45M0.00%––
Rice Hall James & Associates, LLC494,830$2.45M0.08%––
Wells Fargo & Company493,876$2.44M0.00%––
Globeflex Capital L P379,898$1.88M0.34%––
Panagora Asset Management Inc372,696$1.84M0.01%––
UBS Group AG369,563$1.83M0.00%––
Nuveen Asset Management, LLC360,180$1.78M0.00%––
Citadel Advisors LLC333,483$1.65M0.00%––
Goldman Sachs Group Inc314,844$1.56M0.00%––
Deutsche Bank AG301,761$1.49M0.00%––
First Trust Advisors LP285,136$1.41M0.00%––
Assenagon Asset Management S.A.266,979$1.32M0.01%––
Knights of Columbus Asset Advisors LLC257,932$1.28M0.13%––
EAM Investors, LLC232,107$1.15M0.17%––
AlphaCentric Advisors LLC225,000$1.11M0.38%––
New York State Common Retirement Fund222,100$1.10M0.00%––
Verition Fund Management LLC220,208$1.09M0.02%––
Adirondack Research & Management Inc.220,248$1.09M1.29%––
Massachusetts Financial Services Co210,142$1.04M0.00%––
Wedge Capital Management L L P207,052$1.02M0.01%––
California Public Employees Retirement System186,400$923.0K0.00%––
Parallel Advisors, LLC174,701$865.0K0.04%––
Squarepoint Ops LLC173,810$860.0K0.01%––
Cowen Prime Services LLC170,882$846.0K0.32%––
Los Angeles Capital Management LLC160,767$796.0K0.00%––
California State Teachers Retirement System138,444$685.0K0.00%––
Alliancebernstein L.P.136,431$675.0K0.00%––
Morgan Stanley134,923$668.0K0.00%––
Susquehanna Fundamental Investments, LLC120,818$598.0K0.01%––
Engineers Gate Manager LP117,166$580.0K0.03%––
Invesco Ltd.114,311$566.0K0.00%––
Price T Rowe Associates Inc113,495$562.0K0.00%––
Marathon Capital Management110,000$544.0K0.14%––
Rhumbline Advisers105,613$523.0K0.00%––
Gsa Capital Partners LLP102,999$510.0K0.08%––
Susquehanna International Group, LLP87,039$431.0K0.00%––
Barclays PLC84,368$417.0K0.00%––
Oberweis Asset Management Inc81,000$401.0K0.08%––
Bank of America Corp73,073$362.0K0.00%––
DuPont Capital Management Corp70,762$350.0K0.01%––
Algert Global LLC66,260$328.0K0.10%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.62,916$311.0K0.00%––
Mackay Shields LLC59,500$295.0K0.00%––
Candriam Luxembourg S.C.A.71,884$288.0K0.00%––
Manufacturers Life Insurance Company, The55,218$273.0K0.00%––
Parametric Portfolio Associates LLC53,753$266.0K0.00%––
American International Group, Inc.53,549$265.0K0.00%––
Cubist Systematic Strategies, LLC44,597$221.0K0.00%––
Bailard, Inc.43,517$215.0K0.01%––
Voya Investment Management LLC42,252$209.0K0.00%––
ExodusPoint Capital Management, LP41,613$206.0K0.00%––
MetLife Investment Management39,130$193.7K0.00%––
Citigroup Inc38,897$193.0K0.00%––
SG Americas Securities, LLC36,880$183.0K0.00%––
Hussman Strategic Advisors, Inc.36,000$178.0K0.04%––
Victory Capital Management Inc34,735$172.0K0.00%––
Jane Street Group, LLC34,252$170.0K0.00%––
Advisory Services Network, LLC33,450$166.0K0.01%––
Simplex Trading, LLC32,791$162.0K0.01%––
SEI Investments Co35,933$155.0K0.00%––
Metropolitan Life Insurance Co28,067$138.9K0.00%––
Tower Research Capital LLC (TRC)25,879$128.0K0.00%––
Commerce Bank25,000$124.0K0.00%––
ProShare Advisors LLC24,551$122.0K0.00%––
Banque Cantonale Vaudoise23,905$118.0K0.01%––
O'Shaughnessy Asset Management, LLC23,182$115.0K0.00%––
Paloma Partners Management Co22,895$113.0K0.00%––
Harbour Investments, Inc.22,056$109.0K0.00%––
Diversified Trust Co21,782$108.0K0.00%––
Jump Financial, LLC21,528$107.0K0.01%––
HighVista Strategies LLC20,938$104.0K0.08%––