ACCURAY INC - ARAY

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
VANGUARD GROUP INC History No change 5,818,576 4,800 0.0% 0.0% 1 0 0.0% Q4 2025 Jan 29, 2026
TCW GROUP INC History No change 15,467,952 4,084 0.03% 0.07% 2 0 0.0% Q1 2026 May 14, 2026
BlackRock, Inc. History Reduced 8,458,409 3,282 0.0% 0.0% 3 -88,720 -1.04% Q1 2026 May 13, 2026
Neuberger Berman Group LLC History Added to 5,855,064 2,253 0.0% 0.0% 4 +888,096 17.88% Q1 2026 May 14, 2026
ARMISTICE CAPITAL, LLC History Added to 5,636,000 2,187 0.04% 0.04% 5 +1,136,000 25.24% Q1 2026 May 15, 2026
WEBER CAPITAL MANAGEMENT LLC /ADV History No change 5,055,294 1,961 1.96% 3.94% 6 0 0.0% Q1 2026 Apr 22, 2026
VANGUARD CAPITAL MANAGEMENT LLC History New 4,430,392 1,718 0.0% 7 +4,430,392 New Q1 2026 May 15, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 2,380,839 924 0.0% 0.0% 8 -95,505 -3.86% Q1 2026 May 15, 2026
MACKENZIE FINANCIAL CORP History Added to 2,346,360 910 0.0% 0.0% 9 +428,274 22.33% Q1 2026 May 13, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 2,290,984 889 0.0% 0.0% 10 -161,623 -6.59% Q1 2026 May 14, 2026
STATE STREET CORP History Added to 2,017,653 783 0.0% 0.0% 11 +21,186 1.06% Q1 2026 May 15, 2026
HEARTLAND ADVISORS INC History Reduced 1,977,450 767 0.04% 0.15% 12 -1,350,857 -40.59% Q1 2026 May 06, 2026
DAFNA Capital Management LLC History Added to 1,680,508 652 0.15% 0.27% 13 +285,000 20.42% Q1 2026 May 15, 2026
SILVERBACK ASSET MANAGEMENT LLC History Added to 1,650,000 640 0.09% 0.18% 14 +117,481 7.67% Q1 2026 May 21, 2026
UBS Group AG History Added to 1,401,766 543 0.0% 0.0% 15 +1,036,281 283.54% Q1 2026 May 05, 2026
FMR LLC History Added to 1,288,788 500 0.0% 0.0% 16 +225,156 21.17% Q1 2026 May 15, 2026
Parkman Healthcare Partners LLC History Added to 884,578 343 0.04% 0.07% 17 +32,566 3.82% Q1 2026 May 15, 2026
GOLDMAN SACHS GROUP INC History Added to 861,635 334 0.0% 0.0% 18 +87,861 11.35% Q1 2026 May 15, 2026
D. E. Shaw & Co., Inc. History Reduced 843,646 327 0.0% 0.0% 19 -839,623 -49.88% Q1 2026 May 15, 2026
VANGUARD FIDUCIARY TRUST CO History New 765,448 296 0.0% 20 +765,448 New Q1 2026 May 08, 2026
Kovack Advisors, Inc. History Reduced 738,096 286 0.02% 0.04% 21 -214,979 -22.56% Q1 2026 May 12, 2026
NORTHERN TRUST CORP History Reduced 717,045 278 0.0% 0.0% 22 -43,549 -5.73% Q1 2026 May 14, 2026
Silverberg Bernstein Capital Management LLC History Added to 655,681 254 0.14% 0.31% 23 +7,133 1.1% Q1 2026 Apr 16, 2026
AQR CAPITAL MANAGEMENT LLC History Added to 617,477 239 0.0% 0.0% 24 +574,824 1347.68% Q1 2026 May 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History New 595,229 230 0.0% 25 +595,229 New Q1 2026 May 08, 2026
Squarepoint Ops LLC History New 547,076 212 0.0% 26 +547,076 New Q1 2026 May 15, 2026
TENOR CAPITAL MANAGEMENT Co., L.P. History No change 500,000 194 0.0% 0.01% 27 0 0.0% Q1 2026 May 15, 2026
ACADIAN ASSET MANAGEMENT LLC History Reduced 394,270 152 0.0% 0.0% 28 -175,819 -30.84% Q1 2026 May 13, 2026
Mitsubishi UFJ Asset Management Co., Ltd. History Added to 334,023 129 0.0% 0.0% 29 +50,428 17.78% Q1 2026 May 12, 2026
Invesco Ltd. History Added to 328,175 127 0.0% 0.0% 30 +83,175 33.95% Q1 2026 May 12, 2026
Nuveen, LLC History Added to 295,412 114 0.0% 0.0% 33 +1,733 0.59% Q1 2026 Apr 30, 2026
DIMENSIONAL FUND ADVISORS LP History Reduced 294,903 114 0.0% 0.0% 31 -60 -0.02% Q1 2026 May 07, 2026
TWO SIGMA ADVISERS, LP History No change 139,413 114 0.0% 0.0% 32 0 0.0% Q4 2025 Feb 17, 2026
MORGAN STANLEY History Reduced 288,813 112 0.0% 0.0% 34 -187,330 -39.34% Q1 2026 May 15, 2026
DEUTSCHE BANK AG\ History Added to 245,107 95 0.0% 0.0% 35 +156,565 176.83% Q1 2026 May 06, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 239,163 92 0.0% 0.0% 36 -138,254 -36.63% Q1 2026 May 15, 2026
Bank of New York Mellon Corp History No change 219,959 85 0.0% 0.0% 37 0 0.0% Q1 2026 May 05, 2026
TUDOR INVESTMENT CORP ET AL History No change 211,597 82 0.0% 0.0% 38 0 0.0% Q1 2026 May 15, 2026
Assenagon Asset Management S.A. History Reduced 204,015 79 0.0% 0.0% 39 -1,213 -0.59% Q1 2026 Apr 20, 2026
BARCLAYS PLC History Reduced 184,610 71 0.0% 0.0% 40 -136,648 -42.54% Q1 2026 May 14, 2026
Williams & Novak, LLC History Added to 182,030 70 0.05% 0.07% 41 +63,175 53.15% Q1 2026 Apr 20, 2026
BANK OF AMERICA CORP /DE/ History Added to 172,109 66 0.0% 0.0% 42 +15,438 9.85% Q1 2026 May 15, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC History Reduced 162,505 63 0.0% 0.0% 43 -571,448 -77.86% Q1 2026 May 15, 2026
North Star Investment Management Corp. History Reduced 164,620 63 0.0% 0.04% 44 -519,700 -75.94% Q1 2026 Apr 23, 2026
WELLS FARGO & COMPANY/MN History Reduced 147,547 57 0.0% 0.0% 45 -72,462 -32.94% Q1 2026 May 11, 2026
Schonfeld Strategic Advisors LLC History Reduced 132,292 51 0.0% 0.0% 46 -162,428 -55.11% Q1 2026 May 15, 2026
GSA CAPITAL PARTNERS LLP History Added to 128,065 50 0.0% 0.0% 47 +109,926 606.02% Q1 2026 May 08, 2026
ALLIANCEBERNSTEIN L.P. History No change 54,730 45 0.0% 0.0% 48 0 0.0% Q1 2026 May 15, 2026
HSBC HOLDINGS PLC History No change 111,442 40 0.0% 0.0% 49 0 0.0% Q1 2026 Apr 30, 2026
SEI INVESTMENTS CO History Added to 88,948 34 0.0% 0.0% 50 +5,408 6.47% Q1 2026 May 13, 2026
JPMORGAN CHASE & CO History Added to 79,843 27 0.0% 0.0% 51 +39,537 98.09% Q1 2026 May 13, 2026
MARSHALL WACE, LLP History Added to 68,751 26 0.0% 0.0% 53 +46,837 213.73% Q1 2026 May 14, 2026
RHUMBLINE ADVISERS History Reduced 69,376 26 0.0% 0.0% 52 -13,119 -15.9% Q1 2026 May 12, 2026
FRANKLIN RESOURCES INC History Added to 65,681 25 0.0% 0.0% 54 +43,915 201.76% Q1 2026 May 13, 2026
PANAGORA ASSET MANAGEMENT INC History Reduced 55,648 21 0.0% 0.0% 55 -29,341 -34.52% Q1 2026 May 14, 2026
PERKINS CAPITAL MANAGEMENT INC History Reduced 52,500 20 0.02% 0.06% 57 -34,000 -39.31% Q1 2026 Apr 23, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 50,833 20 0.0% 0.0% 56 0 0.0% Q1 2026 May 15, 2026
Mariner, LLC History Added to 49,226 19 0.0% 0.0% 60 +21,624 78.34% Q1 2026 May 13, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 50,775 19 0.0% 0.0% 58 +10,063 24.72% Q1 2026 May 12, 2026
Janney Montgomery Scott LLC History No change 50,032 19 0.0% 0.0% 59 0 0.0% Q1 2026 Apr 22, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 47,130 18 0.0% 0.0% 61 +1,122 2.44% Q1 2026 May 15, 2026
IEQ CAPITAL, LLC History New 43,427 16 0.0% 63 +43,427 New Q1 2026 May 14, 2026
GABELLI FUNDS LLC History No change 43,800 16 0.0% 0.0% 62 0 0.0% Q1 2026 May 14, 2026
Vanguard Global Advisers, LLC History New 41,222 15 0.0% 64 +41,222 New Q1 2026 May 08, 2026
GROUP ONE TRADING LLC History Reduced 36,400 14 0.0% 0.0% 65 -57,800 -61.36% Q1 2026 May 13, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 33,777 13 0.0% 0.0% 67 -47,808 -58.6% Q1 2026 May 15, 2026
Cerity Partners LLC History New 35,484 13 0.0% 68 +35,484 New Q1 2026 May 15, 2026
THRIVENT FINANCIAL FOR LUTHERANS History Added to 34,080 13 0.0% 0.0% 66 +2,280 7.17% Q1 2026 May 01, 2026
CITADEL ADVISORS LLC History Reduced 28,600 11 0.0% 0.0% 71 -1,458,228 -98.08% Q1 2026 May 15, 2026
Tower Research Capital LLC (TRC) History Added to 30,839 11 0.0% 0.0% 72 +18,127 142.6% Q1 2026 May 15, 2026
INTECH INVESTMENT MANAGEMENT LLC History Reduced 29,777 11 0.0% 0.0% 70 -12,932 -30.28% Q1 2026 May 08, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 29,096 11 0.0% 0.0% 69 0 0.0% Q1 2026 May 06, 2026
CWM, LLC History Added to 26,718 10 0.0% 0.0% 73 +21,435 405.74% Q1 2026 May 14, 2026
Police & Firemen's Retirement System of New Jersey History No change 28,113 10 0.0% 0.0% 74 0 0.0% Q1 2026 Apr 29, 2026
TWO SIGMA INVESTMENTS, LP History Reduced 23,400 9 0.0% 0.0% 76 -213,120 -90.11% Q1 2026 May 15, 2026
HARBOUR INVESTMENTS, INC. History Added to 23,361 9 0.0% 0.0% 75 +19,981 591.15% Q1 2026 May 15, 2026
OPPENHEIMER & CO INC History New 21,000 8 0.0% 77 +21,000 New Q1 2026 Apr 23, 2026
R Squared Ltd History New 20,418 7 0.0% 79 +20,418 New Q1 2026 Apr 29, 2026
FLOW TRADERS U.S. LLC History New 17,752 7 0.0% 78 +17,752 New Q1 2026 May 15, 2026
MERCER GLOBAL ADVISORS INC /ADV History New 16,911 6 0.0% 82 +16,911 New Q1 2026 May 15, 2026
Abel Hall, LLC History New 16,427 6 0.0% 84 +16,427 New Q1 2026 Apr 28, 2026
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC History New 14,633 6 0.0% 83 +14,633 New Q1 2026 Apr 08, 2026
Teton Advisors, LLC History Reduced 18,000 6 0.0% 0.01% 81 -2,000 -10.0% Q1 2026 May 14, 2026
PRUDENTIAL FINANCIAL INC History Added to 16,005 6 0.0% 0.0% 80 +1,480 10.19% Q1 2026 May 13, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Reduced 13,300 5 0.0% 0.0% 88 -161,125 -92.37% Q1 2026 May 15, 2026
LPL Financial LLC History Reduced 14,541 5 0.0% 0.0% 90 -19,484 -57.26% Q1 2026 May 06, 2026
Creative Planning History New 14,112 5 0.0% 91 +14,112 New Q1 2026 May 12, 2026
ProShare Advisors LLC History Reduced 14,364 5 0.0% 0.0% 89 -3,740 -20.66% Q1 2026 Apr 24, 2026
VICTORY CAPITAL MANAGEMENT INC History Added to 12,908 5 0.0% 0.0% 86 +443 3.55% Q1 2026 May 15, 2026
SAWGRASS ASSET MANAGEMENT LLC History Reduced 13,832 5 0.0% 0.0% 87 -325 -2.3% Q1 2026 May 01, 2026
ASSOCIATED BANC-CORP History No change 13,675 5 0.0% 0.0% 85 0 0.0% Q1 2026 May 01, 2026
TWO SIGMA SECURITIES, LLC History New 11,298 4 0.0% 93 +11,298 New Q1 2026 May 15, 2026
ENVESTNET ASSET MANAGEMENT INC History New 10,378 4 0.0% 92 +10,378 New Q1 2026 May 04, 2026
PRINCIPAL FINANCIAL GROUP INC History New 10,275 3 0.0% 98 +10,275 New Q1 2026 May 04, 2026
Legal & General Group Plc History Reduced 9,424 3 0.0% 0.0% 95 -1,767 -15.79% Q1 2026 May 08, 2026
MML INVESTORS SERVICES, LLC History No change 10,000 3 0.0% 0.0% 94 0 0.0% Q1 2026 May 04, 2026
Russell Investments Group, Ltd. History No change 8,401 3 0.0% 0.0% 96 0 0.0% Q1 2026 May 08, 2026
Global Retirement Partners, LLC History No change 3,749 3 0.0% 0.0% 97 0 0.0% Q4 2025 Feb 06, 2026
SIMPLEX TRADING, LLC History Reduced 7,486 2 0.0% 0.0% 101 -16,814 -69.19% Q1 2026 May 14, 2026
CITIGROUP INC History Added to 5,165 2 0.0% 0.0% 99 +1,450 39.03% Q1 2026 May 11, 2026
Ameritas Investment Partners, Inc. History No change 7,702 2 0.0% 0.0% 100 0 0.0% Q1 2026 May 13, 2026
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO History Reduced 3,075 1 0.0% 0.0% 103 -74,525 -96.04% Q1 2026 May 14, 2026
FIFTH THIRD BANCORP History New 4,256 1 0.0% 105 +4,256 New Q1 2026 May 01, 2026
Allworth Financial LP History Added to 3,878 1 0.0% 0.0% 104 +978 33.72% Q1 2026 May 14, 2026
COMERICA BANK History No change 1,345 1 0.0% 0.0% 102 0 0.0% Q4 2025 Jan 29, 2026
Connor, Clark & Lunn Investment Management Ltd. History Closed out 0 0 0.0% -602,114 -100.0% Q1 2026 May 11, 2026
JANE STREET GROUP, LLC History Closed out 0 0 0.0% -328,043 -100.0% Q1 2026 May 12, 2026
AMERIPRISE FINANCIAL INC History Closed out 0 0 0.0% -183,537 -100.0% Q1 2026 May 15, 2026
Virtu Financial LLC History Closed out 0 0 0.01% -166,673 -100.0% Q1 2026 May 14, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History Closed out 0 0 0.0% -87,775 -100.0% Q1 2026 May 08, 2026
CANADA PENSION PLAN INVESTMENT BOARD History Closed out 0 0 0.0% -61,100 -100.0% Q1 2026 May 15, 2026
Centiva Capital, LP History Closed out 0 0 0.0% -60,695 -100.0% Q1 2026 May 14, 2026
OXFORD ASSET MANAGEMENT LLP History Closed out 0 0 0.02% -53,526 -100.0% Q1 2026 May 15, 2026
XTX Topco Ltd History Closed out 0 0 0.0% -37,285 -100.0% Q1 2026 May 15, 2026
NINE MASTS CAPITAL Ltd History Closed out 0 0 0.0% -25,202 -100.0% Q1 2026 May 12, 2026
GLOBEFLEX CAPITAL L P History Closed out 0 0 0.0% -25,045 -100.0% Q1 2026 May 13, 2026
Graham Capital Management, L.P. History Closed out 0 0 0.0% -23,748 -100.0% Q1 2026 May 15, 2026
SG Americas Securities, LLC History Closed out 0 0 0.0% -23,103 -100.0% Q1 2026 Apr 16, 2026
Sagewood Asset Management LP History Closed out 0 0 0.01% -22,793 -100.0% Q1 2026 May 13, 2026
Verition Fund Management LLC History Closed out 0 0 0.0% -21,915 -100.0% Q1 2026 May 15, 2026
VOYA INVESTMENT MANAGEMENT LLC History Closed out 0 0 0.0% -21,433 -100.0% Q1 2026 May 12, 2026
Engineers Gate Manager LP History Closed out 0 0 0.0% -16,810 -100.0% Q1 2026 May 15, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History Closed out 0 0 0.0% -12,296 -100.0% Q1 2026 May 15, 2026
Fisher Asset Management, LLC History Closed out 0 0 0.0% -12,060 -100.0% Q1 2026 May 05, 2026
HRT FINANCIAL LP History Closed out 0 0 0.0% -11,827 -100.0% Q1 2026 May 14, 2026
MILLENNIUM MANAGEMENT LLC History Closed out 0 0 0.0% -10,391 -100.0% Q1 2026 May 15, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Closed out 0 0 0.0% -6,085 -100.0% Q1 2026 May 15, 2026
AMALGAMATED BANK History Closed out 0 0 0.0% -3,113 -100.0% Q1 2026 May 08, 2026
ROYAL BANK OF CANADA History Closed out 0 0 0.0% -2,987 -100.0% Q1 2026 May 15, 2026
Smartleaf Asset Management LLC History Closed out 0 0 0.0% -1,517 -100.0% Q1 2026 May 15, 2026
EverSource Wealth Advisors, LLC History Added to 1,247 0 +1,199 2497.92% Q1 2026 May 15, 2026
Larson Financial Group LLC History New 920 0 +920 New Q1 2026 May 15, 2026
GAMMA Investing LLC History New 775 0 +775 New Q1 2026 Apr 06, 2026
Farther Finance Advisors, LLC History New 438 0 +438 New Q1 2026 Apr 07, 2026
Transamerica Financial Advisors, LLC History New 398 0 +398 New Q1 2026 May 15, 2026
ROTHSCHILD INVESTMENT LLC History New 246 0 +246 New Q1 2026 May 07, 2026
Advisory Services Network, LLC History New 210 0 +210 New Q1 2026 May 15, 2026
MAI Capital Management History Added to 335 0 +205 157.69% Q1 2026 May 15, 2026
IFP Advisors, Inc History Added to 213 0 +205 2562.5% Q1 2026 Apr 13, 2026
Root Financial Partners, LLC History New 121 0 +121 New Q1 2026 Apr 24, 2026
SBI Securities Co., Ltd. History Added to 234 0 +110 88.71% Q1 2026 Apr 27, 2026
Sunbelt Securities, Inc. History New 66 0 +66 New Q1 2026 May 15, 2026
True Wealth Design, LLC History Added to 67 0 +49 272.22% Q1 2026 Apr 13, 2026
Arax Advisory Partners History New 30 0 +30 New Q1 2026 May 13, 2026
SJS Investment Consulting Inc. History New 30 0 +30 New Q1 2026 Apr 23, 2026
JONES FINANCIAL COMPANIES LLLP History New 24 0 +24 New Q1 2026 May 15, 2026
PNC FINANCIAL SERVICES GROUP, INC. History No change 143 0 0 0.0% Q1 2026 May 08, 2026
HANTZ FINANCIAL SERVICES, INC. History No change 25 0 0 0.0% Q1 2026 May 01, 2026
Sterling Capital Management LLC History No change 985 0 0 0.0% Q1 2026 Apr 22, 2026
OSAIC HOLDINGS, INC. History No change 1,000 0 0 0.0% Q1 2026 May 15, 2026
Rockefeller Capital Management L.P. History No change 1,446 0 0.0% 0 0.0% Q1 2026 May 14, 2026
HighMark Wealth Management LLC History No change 100 0 0 0.0% Q1 2026 May 05, 2026
Optiver Holding B.V. History No change 1,712 0 0.0% 0 0.0% Q1 2026 May 15, 2026
Fairscale Capital, LLC History No change 479 0 0 0.0% Q1 2026 May 11, 2026
Crews Bank & Trust History No change 1,500 0 0.0% 0 0.0% Q1 2026 May 13, 2026