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 2026
Institutional positions in Accuray Inc as of Mar 31, 2026. 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
- 125
- +3 vs. Q4 2025
- Shares held
- 75.6M
- +3.95M (+5.5%) vs. Q4 2025
- Total value
- $27.4M
- −$28.2M (−50.7%) vs. Q4 2025
- New holders
- 30
- 40 more added
- Sold out
- 27
- 30 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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, Q1 2026
Shares, value and share of portfolio for each institution holding Accuray Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Squarepoint Ops LLC | 547,076 | $212.3K | 0.00% | +547,076 | New |
| Vanguard Portfolio Management LLC | 595,229 | $230.9K | 0.00% | +595,229 | New |
| AQR Capital Management LLC | 617,477 | $239.6K | 0.00% | +574,824+1,347.7% | Added |
| Silverberg Bernstein Capital Management LLC | 655,681 | $254.5K | 0.14% | +7,133+1.1% | Added |
| Northern Trust Corp | 717,045 | $278.3K | 0.00% | −43,549−5.7% | Reduced |
| Kovack Advisors, Inc. | 738,096 | $287.0K | 0.02% | −214,979−22.6% | Reduced |
| Vanguard Fiduciary Trust Co | 765,448 | $297.0K | 0.00% | +765,448 | New |
| D. E. Shaw & Co., Inc. | 843,646 | $327.4K | 0.00% | −839,623−49.9% | Reduced |
| Goldman Sachs Group Inc | 861,635 | $334.4K | 0.00% | +87,861+11.4% | Added |
| Parkman Healthcare Partners LLC | 884,578 | $343.3K | 0.04% | +32,566+3.8% | Added |
| FMR LLC | 1,288,788 | $500.2K | 0.00% | +225,156+21.2% | Added |
| UBS Group AG | 1,401,766 | $543.9K | 0.00% | +1,036,281+283.5% | Added |
| Silverback Asset Management LLC | 1,650,000 | $640.4K | 0.13% | +117,481+7.7% | Added |
| DAFNA Capital Management LLC | 1,680,508 | $652.2K | 0.15% | +285,000+20.4% | Added |
| Heartland Advisors Inc | 1,977,450 | $767.4K | 0.04% | −1,350,857−40.6% | Reduced |
| State Street Corp | 2,017,653 | $783.1K | 0.00% | +21,186+1.1% | Added |
| Renaissance Technologies LLC | 2,290,984 | $889.1K | 0.00% | −161,623−6.6% | Reduced |
| Mackenzie Financial Corp | 2,346,360 | $910.6K | 0.00% | +428,274+22.3% | Added |
| Geode Capital Management, LLC | 2,380,839 | $924.2K | 0.00% | −95,505−3.9% | Reduced |
| Vanguard Capital Management LLC | 4,430,392 | $1.72M | 0.00% | +4,430,392 | New |
| Weber Capital Management LLC | 5,055,294 | $1.96M | 1.96% | 00.0% | Unchanged |
| Armistice Capital, LLC | 5,636,000 | $2.19M | 0.07% | +1,136,000+25.2% | Added |
| Neuberger Berman Group LLC | 5,855,064 | $2.25M | 0.00% | +888,096+17.9% | Added |
| BlackRock, Inc. | 8,458,409 | $3.28M | 0.00% | −88,720−1.0% | Reduced |
| TCW Group Inc | 15,467,952 | $4.08M | 0.03% | 00.0% | Unchanged |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −892,328−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −602,114−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −328,043−100.0% | Sold out |
| Ameriprise Financial Inc | 0 | $0 | 0.00% | −183,537−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −166,673−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −87,775−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −139,413−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −61,100−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −60,695−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −53,526−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −37,285−100.0% | Sold out |
| Nine Masts Capital Ltd | 0 | $0 | 0.00% | −25,202−100.0% | Sold out |
| Globeflex Capital L P | 0 | $0 | 0.00% | −25,045−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −23,748−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −23,103−100.0% | Sold out |
| Sagewood Asset Management LP | 0 | $0 | 0.00% | −22,793−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −21,915−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −21,433−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −16,810−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −12,296−100.0% | Sold out |
| Fisher Asset Management, LLC | 0 | $0 | 0.00% | −12,060−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −11,827−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −10,391−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −6,085−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −3,113−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −2,987−100.0% | Sold out |
| Smartleaf Asset Management LLC | 0 | $0 | 0.00% | −1,517−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |