Latest Period
Q1 2026
Security Snapshot
ACCURAY INC - Common Stock (ARAY) Institutional Ownership
CUSIP: 004397105
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
122
Shares (Excl. Options)
75,593,413
Price
$0.39
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- Security type / class
- Equity / Common Stock
- Symbol
- ARAY on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 75,593,413
- Total 13F value
- $27,393,430
- Portfolio coverage rank
- 0%
- Share change
- -1,812,881
- Value change
- -$1,927,416
- Number of holders
- 122
- Shares outstanding
- 138,263,204
- SEC-reported price per share
- $0.48
- Insider filing price
- $0.48
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ARAY - ACCURAY INC - Common Stock is tracked under CUSIP 004397105.
- 122 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 123 to 122 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $60,348,897 to $27,393,430.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 122 institutions filings for Q1 2026.
Security key
004397105
Latest holder period
Q1 2026
13F holders
122
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
ARAY full holder history
ACCURAY INC SEC filings
ACCURAY INC company facts
ACCURAY INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 004397105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
ARAY
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| TCW GROUP INC | 14% | +18% | $8,145,085 | +$1,493,866 | 18,942,059 | +22% | The TCW Group, Inc., on behalf of the TCW Business Unit | 19 May 2026 |
| BlackRock, Inc. | 6.5% | $10,345,896 | 6,718,114 | BlackRock, Inc. | 31 Mar 2025 | |||
| Aevum Pension Fund | 5.4% | +6% | $8,316,000 | +$400,400 | 5,400,000 | +5.1% | Aevum Pension Fund | 31 Dec 2024 |
| Neuberger Berman Group LLC | 4.7% | $7,182,051 | 5,242,373 | Neuberger Berman Group LLC | 31 Jul 2025 |
As of 31 Mar 2026, 122 institutional investors reported holding 75,593,413 shares of ACCURAY INC - Common Stock (ARAY). This represents 55% of the company’s total 138,263,204 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
50%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| TCW GROUP INC | 11% | 15,467,952 | 0% | 0.03% | $4,084,001 |
| BlackRock, Inc. | 6.1% | 8,458,409 | -1% | 0% | $3,282,706 |
| NEUBERGER BERMAN GROUP LLC | 4.2% | 5,855,064 | +18% | 0% | $2,253,763 |
| ARMISTICE CAPITAL, LLC | 4.1% | 5,636,000 | +25% | 0.07% | $2,187,332 |
| WEBER CAPITAL MANAGEMENT LLC /ADV | 3.7% | 5,055,294 | 0% | 2% | $1,961,960 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.2% | 4,430,392 | 0% | 0% | $1,718,992 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7% | 2,380,839 | -3.9% | 0% | $924,159 |
| MACKENZIE FINANCIAL CORP | 1.7% | 2,346,360 | +22% | 0% | $910,622 |
| RENAISSANCE TECHNOLOGIES LLC | 1.7% | 2,290,984 | -6.6% | 0% | $889,131 |
| STATE STREET CORP | 1.5% | 2,017,653 | +1.1% | 0% | $783,051 |
| HEARTLAND ADVISORS INC | 1.4% | 1,977,450 | -41% | 0.04% | $767,448 |
| DAFNA Capital Management LLC | 1.2% | 1,680,508 | +20% | 0.15% | $652,205 |
| SILVERBACK ASSET MANAGEMENT LLC | 1.2% | 1,650,000 | +7.7% | 0.13% | $640,365 |
| UBS Group AG | 1% | 1,401,766 | +284% | 0% | $543,886 |
| FMR LLC | 0.93% | 1,288,788 | +21% | 0% | $500,179 |
| Parkman Healthcare Partners LLC | 0.64% | 884,578 | +3.8% | 0.04% | $343,305 |
| GOLDMAN SACHS GROUP INC | 0.62% | 861,635 | +11% | 0% | $334,400 |
| D. E. Shaw & Co., Inc. | 0.61% | 843,646 | -50% | 0% | $327,419 |
| VANGUARD FIDUCIARY TRUST CO | 0.55% | 765,448 | 0% | 0% | $296,994 |
| Kovack Advisors, Inc. | 0.53% | 738,096 | -23% | 0.02% | $286,972 |
| NORTHERN TRUST CORP | 0.52% | 717,045 | -5.7% | 0% | $278,286 |
| Silverberg Bernstein Capital Management LLC | 0.47% | 655,681 | +1.1% | 0.14% | $254,470 |
| AQR CAPITAL MANAGEMENT LLC | 0.45% | 617,477 | +1348% | 0% | $239,643 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.43% | 595,229 | 0% | 0% | $230,949 |
| Squarepoint Ops LLC | 0.4% | 547,076 | 0% | $212,320 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 75,593,413 | $27,393,430 | -$1,927,416 | $0.39 | 122 |
| 2025 Q4 | 77,431,529 | $60,348,897 | -$4,913,795 | $0.82 | 123 |
| 2025 Q3 | 60,001,066 | $100,180,848 | -$1,355,075 | $1.67 | 124 |
| 2025 Q2 | 73,144,282 | $94,616,692 | +$18,303,516 | $1.37 | 124 |
| 2025 Q1 | 57,280,141 | $102,555,357 | +$5,000,240 | $1.79 | 127 |
| 2024 Q4 | 54,790,484 | $108,462,413 | -$612,268 | $1.98 | 131 |
| 2024 Q3 | 55,273,478 | $99,491,658 | -$1,132,953 | $1.80 | 125 |
| 2024 Q2 | 56,546,409 | $102,909,820 | -$12,245,302 | $1.82 | 114 |
| 2024 Q1 | 61,933,521 | $152,971,932 | -$3,768,100 | $2.47 | 117 |
| 2023 Q4 | 63,470,515 | $179,637,196 | -$2,968,992 | $2.83 | 127 |
| 2023 Q3 | 64,056,101 | $174,232,976 | -$6,932,858 | $2.72 | 114 |
| 2023 Q2 | 66,613,041 | $257,801,887 | +$27,666,990 | $3.87 | 116 |
| 2023 Q1 | 59,856,675 | $177,897,491 | +$8,781,556 | $2.97 | 112 |
| 2022 Q4 | 57,183,950 | $119,499,883 | -$5,041,834 | $2.09 | 104 |
| 2022 Q3 | 59,466,960 | $123,682,666 | -$5,514,684 | $2.08 | 101 |
| 2022 Q2 | 61,466,968 | $120,500,134 | -$22,882,991 | $1.96 | 113 |
| 2022 Q1 | 69,953,335 | $231,492,434 | +$2,188,575 | $3.31 | 139 |
| 2021 Q4 | 69,645,561 | $331,987,197 | +$9,635,567 | $4.77 | 136 |
| 2021 Q3 | 67,372,354 | $265,964,765 | -$13,001,613 | $3.95 | 127 |
| 2021 Q2 | 70,609,601 | $319,088,190 | +$5,486,849 | $4.52 | 124 |
| 2021 Q1 | 69,139,124 | $341,987,324 | +$14,275,160 | $4.95 | 132 |
| 2020 Q4 | 66,332,505 | $276,527,663 | +$1,018,979 | $4.17 | 122 |
| 2020 Q3 | 64,851,285 | $155,624,642 | -$246,598 | $2.40 | 110 |
| 2020 Q2 | 65,365,193 | $132,688,162 | -$345,040 | $2.03 | 115 |
| 2020 Q1 | 65,248,279 | $123,935,969 | -$6,107,649 | $1.90 | 105 |