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Of the 11 tracked institutions holding ARAY, 5 have a 3-year clone track record — 5 of them beat the S&P. Average holder's clone alpha: +5.8pt. It's a gauge of who owns the name, not just how many.
Among the 11 tracked institutional investors we monitor, ARAY (ACCURAY INC) is held with a combined value of $9.38M across 23,274,350 shares. The largest holder is VANGUARD GROUP INC with a position worth $4.80M. 3 funds opened new positions in the most recent quarter. 5 funds increased their holdings. 3 funds reduced their position.
Total Institutional Value
$9.38M
Total Shares Held
23,274,350
Institutional Holders
11
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $4.80M | 0.00% | +6.2% |
| 2 | ARMISTICE CAPITAL, LLC | $1.48M | 0.04% | +1.8% |
| 3 | BlackRock, Inc. | $842.02K | 0.00% | -61.4% |
| 4 | AQR CAPITAL MANAGEMENT LLC | $700.97K | 0.00% | +340.3% |
| 5 | RENAISSANCE TECHNOLOGIES LLC | $532.43K | 0.00% | -9.9% |
| 6 | MILLENNIUM MANAGEMENT LLC | $409.68K | 0.00% | New |
| 7 | FMR LLC | $354.67K | 0.00% | +6.7% |
| 8 | STATE STREET CORP | $125.26K | 0.00% | -75.9% |
| 9 | TWO SIGMA ADVISERS, LP | $114.96K | 0.00% | +15.4% |
| 10 | Point72 Asset Management, L.P. | $12.26K | 0.00% | New |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of ARAY with a position worth $4.80M, representing 0.00% of their portfolio. In total, 11 institutional investors hold ARAY with a combined value of $9.38M.
In the most recent quarter, 3 funds opened a new position in ARAY. Additionally, 5 increased their holdings and 3 reduced their positions.
Institutional investors hold $9.38M worth of ARAY stock across 11 positions. The largest institutional holder is VANGUARD GROUP INC with $4.80M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ARAY, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ARAY positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| 2026-08-05 |
| 1.7% | 2026-07-27 |
SEC Schedule 13D (activist) and 13G (passive) filings for ARAY. Filed when an investor acquires 5%+ ownership.
Last Close
$0.28
2026-10-02
YTD
-66.9%
4% of 52-week range
