Who owns ACCURAY INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ARAY from SEC Form 13F filings across 110 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 110 institutions disclosed 71.4M shares of ACCURAY INC worth $17.6M — about 58.2% of shares outstanding; the largest disclosed holder is TCW GROUP INC. Source: SEC Form 13F filings, parsed by EvidInvest.
110
13F holders
$17.6M
value, 2026 filers
58.2%
of shares outstanding (71.4M sh)
27
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ARAY's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | TCW GROUP INC | 18.9M | $4.1M | 0.0% | 15.4% | +22.5% |
| 2 | NEUBERGER BERMAN GROUP LLC | 6.1M | $1.6M | 0.0% | 5% | +3.7% |
| 3 | ARMISTICE CAPITAL, LLC | 5.7M | $1.5M | 0.0% | 4.7% | +1.8% |
| 4 | WEBER CAPITAL MANAGEMENT LLC /ADV | 4.9M | $1.3M | 1.1% | 4% | -2.4% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 4.4M | $1.1M | 0.0% | 3.6% | +0.2% |
| 6 | BlackRock, Inc. | 3.3M | $842,023 | 0.0% | 2.7% | -61.4% |
| 7 | AQR CAPITAL MANAGEMENT LLC | 2.7M | $700,967 | 0.0% | 2.2% | +340.3% |
| 8 | JANE STREET GROUP, LLCNEW | 2.1M | $551,620 | 0.0% | 1.7% | new |
| 9 | RENAISSANCE TECHNOLOGIES LLC | 2.1M | $532,430 | 0.0% | 1.7% | -9.9% |
| 10 | DAFNA Capital Management LLC | 1.7M | $433,235 | 0.1% | 1.4% | 0.0% |
| 11 | UBS Group AG | 1.6M | $418,983 | 0.0% | 1.3% | +15.9% |
| 12 | MILLENNIUM MANAGEMENT LLCNEW | 1.6M | $409,682 | 0.0% | 1.3% | new |
| 13 | SILVERBACK ASSET MANAGEMENT LLC | 1.4M | $373,810 | 0.0% | 1.2% | -12.1% |
| 14 | Squarepoint Ops LLC | 1.4M | $373,355 | 0.0% | 1.2% | +164.7% |
| 15 | FMR LLC | 1.4M | $354,667 | 0.0% | 1.1% | +6.7% |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 1.2M | $306,731 | 0.0% | 1% | -50.0% |
| 17 | Kovack Advisors, Inc. | 1.1M | $272,708 | 0.0% | 0.9% | +42.4% |
| 18 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 825,604 | $212,841 | 0.0% | 0.7% | +2344.3% |
| 19 | GOLDMAN SACHS GROUP INC | 802,957 | $207,002 | 0.0% | 0.7% | -6.8% |
| 20 | VANGUARD FIDUCIARY TRUST CO | 685,262 | $176,798 | 0.0% | 0.6% | -10.5% |
| 21 | Silverberg Bernstein Capital Management LLC | 658,915 | $169,868 | 0.1% | 0.5% | +0.5% |
| 22 | D. E. Shaw & Co., Inc. | 649,353 | $167,403 | 0.0% | 0.5% | -23.0% |
| 23 | TENOR CAPITAL MANAGEMENT Co., L.P. | 500,000 | $128,900 | 0.0% | 0.4% | 0.0% |
| 24 | STATE STREET CORP | 485,866 | $125,256 | 0.0% | 0.4% | -75.9% |
| 25 | TUDOR INVESTMENT CORP ET AL | 392,236 | $101,118 | 0.0% | 0.3% | +85.4% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.