ACCURAY INC (ARAY) Institutional Ownership Changes & 13F Activity
ACCURAY INC (ARAY). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Armistice Capital, Llc, Mackenzie Financial Corp, D. E. Shaw & Co., Inc., Silverback Asset Management Llc, and Dafna Capital Management Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Hsbc Holdings Plc | Buy | +111,442 | — | 111,442 | $93.84K | Q4 2025 | Mar 06, 2026 |
| Virtu Financial Llc | Buy | +166,673 | — | 166,673 | $137.00K | Q4 2025 | Feb 23, 2026 |
| Mackenzie Financial Corp | Buy | +1,918,086 | — | 1,918,086 | $1.54M | Q4 2025 | Feb 18, 2026 |
| Armistice Capital, Llc | Buy | +4,500,000 | — | 4,500,000 | $3.71M | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +1,683,269 | — | 1,683,269 | $1.39M | Q4 2025 | Feb 17, 2026 |
| Silverback Asset Management Llc | Buy | +1,532,519 | — | 1,532,519 | $1.26M | Q4 2025 | Feb 17, 2026 |
| Dafna Capital Management Llc | Buy | +1,395,508 | — | 1,395,508 | $1.15M | Q4 2025 | Feb 17, 2026 |
| Fmr Llc | Buy | +1,063,632 | — | 1,063,632 | $877.07K | Q4 2025 | Feb 17, 2026 |
| Citadel Advisors Llc | Buy | +892,328 | — | 892,328 | $735.81K | Q4 2025 | Feb 17, 2026 |
| Parkman Healthcare Partners Llc | Buy | +852,012 | — | 852,012 | $702.57K | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +760,594 | — | 760,594 | $627.19K | Q4 2025 | Feb 17, 2026 |
| Tenor Capital Management Co., L.P. | Buy | +500,000 | — | 500,000 | $412.30K | Q4 2025 | Feb 17, 2026 |
| Schonfeld Strategic Advisors Llc | Buy | +294,720 | — | 294,720 | $243.02K | Q4 2025 | Feb 17, 2026 |
| Two Sigma Investments, Lp | Buy | +236,520 | — | 236,520 | $195.03K | Q4 2025 | Feb 17, 2026 |
| Tudor Investment Corp Et Al | Buy | +211,597 | — | 211,597 | $174.48K | Q4 2025 | Feb 17, 2026 |
| Ameriprise Financial Inc | Buy | +183,537 | — | 183,537 | $151.34K | Q4 2025 | Feb 17, 2026 |
| Bridgeway Capital Management, Llc | Buy | +174,425 | — | 174,425 | $143.83K | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +156,671 | — | 156,671 | $129.10K | Q4 2025 | Feb 17, 2026 |
| Two Sigma Advisers, Lp | Buy | +139,413 | — | 139,413 | $114.96K | Q4 2025 | Feb 17, 2026 |
| Susquehanna International Group, Llp | Buy | +81,585 | — | 81,585 | $67.28K | Q4 2025 | Feb 17, 2026 |
| Public Employees Retirement System Of Ohio | Buy | +77,600 | — | 77,600 | $63.99K | Q4 2025 | Feb 17, 2026 |
| Canada Pension Plan Investment Board | Buy | +61,100 | — | 61,100 | $50.38K | Q4 2025 | Feb 17, 2026 |
| Alliancebernstein L.P. | Buy | +54,730 | — | 54,730 | $45.13K | Q4 2025 | Feb 17, 2026 |
| Price T Rowe Associates Inc | Buy | +50,833 | — | 50,833 | $42.00K | Q4 2025 | Feb 17, 2026 |
| Mirae Asset Global Etfs Holdings Ltd. | Buy | +46,008 | — | 46,008 | $37.94K | Q4 2025 | Feb 17, 2026 |
| Aqr Capital Management Llc | Buy | +42,653 | — | 42,653 | $35.17K | Q4 2025 | Feb 17, 2026 |
| Xtx Topco Ltd | Buy | +37,285 | — | 37,285 | $30.75K | Q4 2025 | Feb 17, 2026 |
| Graham Capital Management, L.P. | Buy | +23,748 | — | 23,748 | $19.58K | Q4 2025 | Feb 17, 2026 |
| Sagewood Asset Management Lp | Buy | +22,793 | — | 22,793 | $18.80K | Q4 2025 | Feb 17, 2026 |
| Engineers Gate Manager Lp | Buy | +16,810 | — | 16,810 | $13.86K | Q4 2025 | Feb 17, 2026 |
Frequently asked questions about ARAY activity
Which institutional owners are buying ARAY?
Institutional owners buying ARAY include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ARAY activity?
"Buy" means an investor increased their reported position in ARAY compared to the prior reporting period. This reflects growing exposure to ACCURAY INC (ARAY) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ARAY increasing?
Institutional interest in ARAY can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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