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, Q3 2021
Institutional positions in Accuray Inc as of Sep 30, 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
- 133
- +5 vs. Q2 2021
- Shares held
- 67.4M
- −3.06M (−4.3%) vs. Q2 2021
- Total value
- $266.0M
- −$52.3M (−16.4%) vs. Q2 2021
- New holders
- 18
- 38 more added
- Sold out
- 13
- 52 more reduced
2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: new holders, sold out and not filed yet
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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 111 | $17.6M |
| Q1 2026 | 125 | $27.4M |
| Q4 2025 | 125 | $60.5M |
| Q3 2025 | 129 | $101.2M |
| Q2 2025 | 127 | $94.6M |
| Q1 2025 | 129 | $102.6M |
| Q4 2024 | 132 | $108.5M |
| Q3 2024 | 126 | $99.5M |
| Q2 2024 | 115 | $102.9M |
| Q1 2024 | 117 | $153.0M |
| Q4 2023 | 127 | $179.6M |
| Q3 2023 | 114 | $174.2M |
| Q2 2023 | 116 | $257.8M |
| Q1 2023 | 114 | $177.9M |
| Q4 2022 | 108 | $119.5M |
| Q3 2022 | 106 | $123.7M |
| Q2 2022 | 123 | $120.6M |
| Q1 2022 | 144 | $231.6M |
| Q4 2021 | 142 | $332.7M |
| Q3 2021 | 133 | $266.0M |
| Q2 2021 | 130 | $319.1M |
| Q1 2021 | 136 | $342.0M |
Institutions, Q3 2021
Shares, value and share of portfolio for each institution holding Accuray Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 7,727,274 | $30.5M | 0.00% | −187,647−2.4% | Reduced |
| Neuberger Berman Group LLC | 4,992,531 | $19.7M | 0.02% | −127,285−2.5% | Reduced |
| Archon Capital Management LLC | 4,713,670 | $18.6M | 3.93% | +131,002+2.9% | Added |
| Vanguard Group Inc | 4,634,116 | $18.3M | 0.00% | −451,708−8.9% | Reduced |
| Renaissance Technologies LLC | 3,934,807 | $15.5M | 0.02% | +223,982+6.0% | Added |
| Heartland Advisors Inc | 3,403,800 | $13.4M | 0.81% | +5,300+0.2% | Added |
| D. E. Shaw & Co., Inc. | 2,851,439 | $11.3M | 0.01% | +384,388+15.6% | Added |
| State Street Corp | 2,659,767 | $10.5M | 0.00% | +18,584+0.7% | Added |
| Dimensional Fund Advisors LP | 2,205,239 | $8.71M | 0.00% | −280,410−11.3% | Reduced |
| Geode Capital Management, LLC | 1,883,058 | $7.44M | 0.00% | +33,118+1.8% | Added |
| HealthInvest Partners AB | 1,860,000 | $7.35M | 11.00% | −440,000−19.1% | Reduced |
| Harbert Fund Advisors, Inc. | 1,804,184 | $7.13M | 3.69% | +173,866+10.7% | Added |
| Royce & Associates LP | 1,759,680 | $6.95M | 0.05% | −195,589−10.0% | Reduced |
| Wellington Management Group LLP | 1,413,300 | $5.58M | 0.00% | −201,300−12.5% | Reduced |
| Acadian Asset Management LLC | 1,268,693 | $5.01M | 0.02% | +105,679+9.1% | Added |
| Jacobs Levy Equity Management, Inc | 1,238,668 | $4.89M | 0.03% | −398,408−24.3% | Reduced |
| Two Sigma Advisers, LP | 1,026,613 | $4.05M | 0.01% | +79,300+8.4% | Added |
| Two Sigma Investments, LP | 1,020,786 | $4.03M | 0.01% | +173,804+20.5% | Added |
| DAFNA Capital Management LLC | 941,800 | $3.72M | 0.99% | 00.0% | Unchanged |
| Kovack Advisors, Inc. | 935,850 | $3.70M | 0.40% | +136,000+17.0% | Added |
| Northern Trust Corp | 907,465 | $3.58M | 0.00% | −19,486−2.1% | Reduced |
| Primecap Management Co | 810,600 | $3.20M | 0.00% | −29,400−3.5% | Reduced |
| Lapides Asset Management, LLC | 779,900 | $3.08M | 1.28% | −3000.0% | Reduced |
| Foundry Partners, LLC | 681,635 | $2.69M | 0.10% | +681,635 | New |
| JPMorgan Chase & Co | 520,877 | $2.06M | 0.00% | −124,767−19.3% | Reduced |
| Charles Schwab Investment Management Inc | 520,084 | $2.06M | 0.00% | −406,584−43.9% | Reduced |
| Millennium Management LLC | 511,778 | $2.02M | 0.00% | −99,486−16.3% | Reduced |
| Marshall Wace, LLP | 493,121 | $1.95M | 0.01% | +493,121 | New |
| Assenagon Asset Management S.A. | 474,776 | $1.88M | 0.01% | −24,148−4.8% | Reduced |
| Rice Hall James & Associates, LLC | 474,473 | $1.87M | 0.07% | −3,141−0.7% | Reduced |
| Nuveen Asset Management, LLC | 497,408 | $1.85M | 0.00% | +94,825+23.6% | Added |
| Russell Investments Group, Ltd. | 460,430 | $1.82M | 0.00% | −243,656−34.6% | Reduced |
| State Board of Administration of Florida Retirement System | 396,317 | $1.56M | 0.00% | −147,543−27.1% | Reduced |
| Bank of New York Mellon Corp | 346,491 | $1.37M | 0.00% | −329,431−48.7% | Reduced |
| Knights of Columbus Asset Advisors LLC | 334,648 | $1.32M | 0.12% | +1,000+0.3% | Added |
| Globeflex Capital L P | 309,154 | $1.22M | 0.27% | −71,034−18.7% | Reduced |
| Walthausen & Co., LLC | 292,510 | $1.16M | 0.29% | −1,180,040−80.1% | Reduced |
| Goldman Sachs Group Inc | 292,039 | $1.15M | 0.00% | +2,530+0.9% | Added |
| UBS Group AG | 281,698 | $1.11M | 0.00% | +38,852+16.0% | Added |
| Verition Fund Management LLC | 252,146 | $996.0K | 0.02% | −38,687−13.3% | Reduced |
| AlphaCentric Advisors LLC | 250,000 | $988.0K | 0.25% | +15,000+6.4% | Added |
| Panagora Asset Management Inc | 243,455 | $962.0K | 0.01% | 00.0% | Unchanged |
| Morgan Stanley | 229,303 | $906.0K | 0.00% | −2,430−1.0% | Reduced |
| Gsa Capital Partners LLP | 226,882 | $896.0K | 0.09% | +226,882 | New |
| Adirondack Research & Management Inc. | 218,537 | $863.0K | 1.05% | +11,376+5.5% | Added |
| Massachusetts Financial Services Co | 209,212 | $826.0K | 0.00% | −2,743−1.3% | Reduced |
| AQR Capital Management LLC | 202,848 | $801.0K | 0.00% | −184,154−47.6% | Reduced |
| Engineers Gate Manager LP | 198,189 | $783.0K | 0.04% | +48,595+32.5% | Added |
| Tudor Investment Corp Et Al | 185,134 | $731.0K | 0.01% | +120,031+184.4% | Added |
| Parallel Advisors, LLC | 174,701 | $690.0K | 0.03% | −234−0.1% | Reduced |
| Cowen Prime Advisors LLC | 171,382 | $677.0K | 0.25% | +500+0.3% | Added |
| Wells Fargo & Company | 147,859 | $584.0K | 0.00% | −367,742−71.3% | Reduced |
| Invesco Ltd. | 139,430 | $551.0K | 0.00% | +17,094+14.0% | Added |
| Alliancebernstein L.P. | 136,431 | $539.0K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 134,531 | $531.4K | 0.00% | +130,728+3,437.5% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 132,500 | $523.0K | 0.00% | −5,728−4.1% | Reduced |
| Los Angeles Capital Management LLC | 126,517 | $500.0K | 0.00% | −24,240−16.1% | Reduced |
| Price T Rowe Associates Inc | 116,770 | $461.0K | 0.00% | +20,105+20.8% | Added |
| Principal Financial Group Inc | 116,288 | $459.0K | 0.00% | +4,453+4.0% | Added |
| Marathon Capital Management | 110,000 | $435.0K | 0.10% | 00.0% | Unchanged |
| Rhumbline Advisers | 99,994 | $395.0K | 0.00% | +1,522+1.5% | Added |
| Tocqueville Asset Management L.P. | 85,000 | $336.0K | 0.00% | −90,000−51.4% | Reduced |
| Occudo Quantitative Strategies LP | 79,562 | $314.0K | 0.04% | +79,562 | New |
| HRT Financial LP | 79,079 | $312.0K | 0.00% | +79,079 | New |
| Jump Financial, LLC | 78,198 | $309.0K | 0.02% | +78,198 | New |
| Algert Global LLC | 64,466 | $255.0K | 0.03% | +1,036+1.6% | Added |
| Susquehanna International Group, LLP | 62,504 | $247.0K | 0.00% | −40,080−39.1% | Reduced |
| DuPont Capital Management Corp | 61,999 | $245.0K | 0.01% | −8,763−12.4% | Reduced |
| Barclays PLC | 59,181 | $233.0K | 0.00% | +47,012+386.3% | Added |
| Deutsche Bank AG | 58,327 | $230.0K | 0.00% | −177,177−75.2% | Reduced |
| Manufacturers Life Insurance Company, The | 56,991 | $225.0K | 0.00% | −1,146−2.0% | Reduced |
| Susquehanna Fundamental Investments, LLC | 55,399 | $219.0K | 0.00% | −41,313−42.7% | Reduced |
| SG Americas Securities, LLC | 53,978 | $213.0K | 0.00% | +31,855+144.0% | Added |
| American International Group, Inc. | 50,632 | $200.0K | 0.00% | −1,203−2.3% | Reduced |
| California State Teachers Retirement System | 49,956 | $197.0K | 0.00% | −77,425−60.8% | Reduced |
| New York State Common Retirement Fund | 45,675 | $180.0K | 0.00% | −177,267−79.5% | Reduced |
| Citigroup Inc | 41,930 | $166.0K | 0.00% | −14,650−25.9% | Reduced |
| Voya Investment Management LLC | 40,408 | $160.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 37,619 | $148.0K | 0.00% | +1,498+4.1% | Added |
| MetLife Investment Management | 34,773 | $137.4K | 0.00% | +21,023+152.9% | Added |
| Parametric Portfolio Associates LLC | 33,486 | $132.0K | 0.00% | −12,783−27.6% | Reduced |
| Harbour Investments, Inc. | 33,473 | $132.0K | 0.00% | +1,787+5.6% | Added |
| Citadel Advisors LLC | 31,358 | $124.0K | 0.00% | −62,506−66.6% | Reduced |
| Advisory Services Network, LLC | 30,800 | $122.0K | 0.00% | −2,650−7.9% | Reduced |
| Hussman Strategic Advisors, Inc. | 31,000 | $122.0K | 0.03% | 00.0% | Unchanged |
| Walleye Capital LLC | 29,762 | $118.0K | 0.00% | +29,762 | New |
| Arrowstreet Capital, Limited Partnership | 28,700 | $113.0K | 0.00% | +28,700 | New |
| Victory Capital Management Inc | 26,033 | $103.0K | 0.00% | −22,126−45.9% | Reduced |
| Cubist Systematic Strategies, LLC | 26,117 | $103.0K | 0.00% | −16,169−38.2% | Reduced |
| Metropolitan Life Insurance Co | 25,067 | $99.0K | 0.00% | +7,401+41.9% | Added |
| Commerce Bank | 25,000 | $99.0K | 0.00% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 25,028 | $99.0K | 0.00% | +25,028 | New |
| XTX Topco Ltd | 24,690 | $98.0K | 0.03% | +24,690 | New |
| O'Shaughnessy Asset Management, LLC | 23,182 | $92.0K | 0.00% | 00.0% | Unchanged |
| Banque Cantonale Vaudoise | 23,290 | $92.0K | 0.00% | 00.0% | Unchanged |
| Beacon Pointe Advisors, LLC | 21,960 | $87.0K | 0.00% | +21,960 | New |
| SEI Investments Co | 24,817 | $85.0K | 0.00% | +456+1.9% | Added |
| Mackenzie Financial Corp | 20,921 | $83.0K | 0.00% | +4,422+26.8% | Added |
| HighVista Strategies LLC | 20,938 | $82.0K | 0.05% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 19,933 | $79.0K | 0.00% | +19,933 | New |