Delisting risk
Accuray
Builds radiation-treatment systems, planning software, and services around the CyberKnife and TomoTherapy platforms.
$0.2600
After-hours close−0.02 (−5.56%)
At close$0.2753(+5.04%)
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Breakdown13F · Form 4
Institutions 60.00%71.38M sharesInsiders 4.75%5.65M sharesOther 35.25%41.94M shares
Shares outstanding 118.96M · Float 113.00M · 95.0% free float
Institutions13F, as of Jun 30, 2026
111 holders · 71.38M shares · 26 new positions · 61 increased · 29 reduced · 41 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| TCW Group Inc | 18.94M | 15.92% | +3.47M | Aug 3, 2026 |
| Neuberger Berman Group LLC | 6.07M | 5.11% | +218.6K | Aug 13, 2026 |
| Armistice Capital, LLC | 5.74M | 4.82% | +100.0K | Aug 14, 2026 |
| Weber Capital Management LLC /Adv | 4.93M | 4.15% | −122.6K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 4.44M | 3.73% | +7.4K | Aug 13, 2026 |
| BlackRock, Inc. | 3.27M | 2.75% | −5.19M | Aug 7, 2026 |
| AQR Capital Management LLC | 2.72M | 2.29% | +2.10M | Aug 14, 2026 |
| Jane Street Group, LLC | 2.14M | 1.80% | +2.14M | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| The TCW Group, Inc., on behalf of the TCW Business Unit | 13.70% | 18.94M | 13D | May 22, 2026 ↗ |
| BlackRock, Inc. | 6.50% | 6.72M | 13G | Apr 17, 2025 ↗ |
| Neuberger Berman Group LLC | 5.10% | 6.07M | 13G | Jul 7, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Steven F. Mayer | director | 1.55M | 1.30% | Feb 23, 2026 |
| Suzanne C. Winter | officer: President and CEO | 1.20M | 1.01% | Jul 2, 2025 |
| Joseph E. Whitters | director | 667.7K | 0.56% | Nov 25, 2025 |
| Sandeep Chalke | officer: SVP, Chief Commercial Officer | 419.8K | 0.35% | Apr 1, 2026 |
| Ali Pervaiz | officer: SVP Chief Financial Officer | 352.9K | 0.30% | Dec 2, 2025 |
| James M. Hindman | director | 294.8K | 0.25% | Nov 25, 2025 |
| Anne Bryce le Grand | director | 259.5K | 0.22% | Nov 25, 2025 |
| Beverly A. Huss | director | 221.3K | 0.19% | Nov 25, 2025 |
| Mika Nishimura | director | 212.7K | 0.18% | Nov 25, 2025 |
| Robert Kill | director | 162.8K | 0.14% | Nov 17, 2025 |
1 ten-percent owner holds 5.72M shares by Form 4, outside the officers-and-directors figure above · 39 people have not refiled in the last 18 months (12.11M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Feb 20, 2026 | Steven F. Mayerdirector | Purchase | 54,875 | $0.5627 | 1,545,620 |
| Feb 18, 2026 | Steven F. Mayerdirector | Purchase | 126,125 | $0.5328 | 1,421,745 |
| Feb 19, 2026 | Steven F. Mayerdirector | Purchase | 69,000 | $0.5304 | 1,490,745 |
| Nov 19, 2025 | Stephen R. la Nevedirector, officer: CEO | Purchase | 20,000 | $0.9705 | 20,000 |
CongressHouse and Senate disclosures
Not reported.