Ticker · CUSIP 004397105
Holders (tracked)
10
Combined shares
6,186,758
Combined value
$5.06M
Last close
$0.45
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
Price is -45.6% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
14 events
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−144,024 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−94,954 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−110,122 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) added2026-02-17+229,829 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−27,325 shares · 2025Q413F
- +211,597 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−31,677 shares · 2025Q413F
- +12,060 shares · 2025Q413F
- −211,597 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−295,287 shares · 2025Q313F
- Two Sigma Investments opened position2025-11-14+263,845 shares · 2025Q313F
- T. Rowe Price trimmed2025-11-14−58,967 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−257,951 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−120,100 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ARAY…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Ken Fisher (Fisher Asset Mgmt) | 2025Q4 | $0.82 | -46.0% | $5K |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $1.38 | -67.8% | $397K |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $1.38 | -67.8% | $397K |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $1.56 | -71.5% | $5K |
| AQR Capital Management | 2018Q1 | $1.61 | -72.3% | $19K |
| T. Rowe Price | 2016Q1 | $1.61 | -72.4% | $23K |
| Two Sigma Investments | 2016Q1 | $1.92 | -76.8% | $105K |
| Paul Tudor Jones (Tudor Investment) | 2016Q2 | $2.31 | -80.7% | $94K |
| D.E. Shaw & Co. | 2016Q1 | $3.78 | -88.2% | $749K |
| Renaissance Technologies | 2016Q1 | $4.50 | -90.1% | $1.1M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions2
- Paul Tudor Jones (Tudor Investment)+211,597$174K
- Ken Fisher (Fisher Asset Mgmt)+12,060$10K
Added to1
- Ken Griffin (Citadel Advisors)+229,829$190K
Trimmed5
- Izzy Englander (Millennium Mgmt)−144,024$119K
- D.E. Shaw & Co.−110,122$91K
- AQR Capital Management−94,954$78K
- Renaissance Technologies−31,677$26K
- Two Sigma Investments−27,325$23K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 9 | $57.4M |
| 2022Q2 | 10 | $28.6M |
| 2022Q3 | 9 | $35K |
| 2022Q4 | 12 | $20.8M |
| 2023Q1 | 13 | $30.3M |
| 2023Q2 | 12 | $59.2M |
| 2023Q3 | 12 | $33.2M |
| 2023Q4 | 11 | $28.2M |
| 2024Q1 | 11 | $26.3M |
| 2024Q2 | 7 | $23.2M |
| 2024Q3 | 8 | $9.9M |
| 2024Q4 | 10 | $10.5M |
| 2025Q1 | 10 | $9.4M |
| 2025Q2 | 8 | $7.5M |
| 2025Q3 | 7 | $9.2M |
| 2025Q4 | 10 | $5.1M |
Who owns ARAY
10 super-investors · 2025Q4
Tracked stake
6.19M
shares
Combined value
$5M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added2Trim5Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 2.45M | $2M |
| 2 | D.E. Shaw & Co. | 1.68M | $1M |
| 3 | Ken Griffin Citadel Advisors | 892.3K | $736K |
| 4 | Ken Griffin Citadel Advisors | 594.5K | $490K |
| 5 | Two Sigma Investments | 236.5K | $195K |
| 6 | Paul Tudor Jones Tudor Investment | 211.6K | $174K |
| 7 | AQR Capital Management | 42.7K | $35K |
| 8 | Ken Fisher Fisher Asset Mgmt | 12.1K | $10K |
| 9 | Izzy Englander Millennium Mgmt | 10.4K | $9K |
| 10 | T. Rowe Price | 50.8K | $42 |
Recent moves
20 transactions
- +229,829 · 2025Q4
- +211,597 · 2025Q4
- −144,024 · 2025Q4
- −94,954 · 2025Q4
- TRIMD.E. Shaw & Co.−110,122 · 2025Q4
- −27,325 · 2025Q4
- −31,677 · 2025Q4
- +12,060 · 2025Q4
- −211,597 · 2025Q3
- −295,287 · 2025Q3
- +263,845 · 2025Q3
- TRIMT. Rowe Price−58,967 · 2025Q3
- −257,951 · 2025Q3
- −120,100 · 2025Q3
- −35,028 · 2025Q2
- +5,588 · 2025Q2
- +232,636 · 2025Q2
- +243,389 · 2025Q2
- −119,000 · 2025Q2
- −37,453 · 2025Q1
Embed this chart
Paste this iframe anywhere to embed the live ARAY chart.
<iframe src="https://openstocks.me/embed/stock/ARAY" width="100%" height="480" frameborder="0" loading="lazy" title="ARAY chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>