Ticker · CUSIP 03762U105
Holders (tracked)
9
Combined shares
2,364,822
Combined value
$22.89M
Last close
$11.16
Quarter
2025Q4
Price · 1Y$11.16+3.61 (+47.74%)H $11.22 · L $7.39 · Avg Vol 1.1M
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is +15.3% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
18 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−358,093 shares · 2025Q4Position
- D.E. Shaw & Co. exited2026-02-17−111,562 shares · 2025Q4Position
- Two Sigma Investments trimmed2026-02-17−2,708 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+6,181 shares · 2025Q4Position
- +584,800 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+485,203 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+43,774 shares · 2025Q4Position
- Renaissance Technologies exited2026-02-12−32,540 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+145,800 shares · 2025Q4Position
- −326,775 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+5,290 shares · 2025Q3Position
- D.E. Shaw & Co. trimmed2025-11-14−105,108 shares · 2025Q3Position
- AQR Capital Management added2025-11-14+165,197 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+8,632 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−17,226 shares · 2025Q3Position
- Renaissance Technologies opened position2025-11-13+32,540 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−118,355 shares · 2025Q3Position
- Norges Bank (Norway SWF) trimmed2025-11-12−151,757 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ARI…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Izzy Englander (Millennium Mgmt) | 2016Q3 | $9.66 | +15.5% | $5.6M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $9.71 | +14.9% | $4.2M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $9.71 | +14.9% | $4.2M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $9.71 | +14.9% | $4.2M |
| Paul Tudor Jones (Tudor Investment) | 2018Q4 | $9.73 | +14.7% | $6.5M |
| Two Sigma Investments | 2016Q1 | $10.08 | +10.7% | $2.9M |
| AQR Capital Management | 2016Q1 | $10.21 | +9.3% | $3.5M |
| T. Rowe Price | 2016Q1 | $13.02 | -14.3% | $1.3M |
| Norges Bank (Norway SWF) | 2016Q1 | $15.65 | -28.7% | $1.6M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions2
- Paul Tudor Jones (Tudor Investment)+584,800$5.7M
- Norges Bank (Norway SWF)+145,800$1.4M
Added to3
- Izzy Englander (Millennium Mgmt)+485,203$4.7M
- AQR Capital Management+43,774$424K
- T. Rowe Price+6,181$60
Trimmed2
- Ken Griffin (Citadel Advisors)−358,093$3.5M
- Two Sigma Investments−2,708$26K
Exited2
- D.E. Shaw & Co.−111,562$1.1M
- Renaissance Technologies−32,540$330K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 10 | $20.50B |
| 2022Q2 | 10 | $13.87B |
| 2022Q3 | 10 | $210.9M |
| 2022Q4 | 9 | $283.7M |
| 2023Q1 | 11 | $244.7M |
| 2023Q2 | 9 | $275.5M |
| 2023Q3 | 10 | $246.3M |
| 2023Q4 | 9 | $292.5M |
| 2024Q1 | 7 | $274.9M |
| 2024Q2 | 8 | $237.9M |
| 2024Q3 | 8 | $13.4M |
| 2024Q4 | 8 | $13.4M |
| 2025Q1 | 9 | $15.3M |
| 2025Q2 | 10 | $22.6M |
| 2025Q3 | 9 | $16.9M |
| 2025Q4 | 9 | $22.9M |
Who owns ARI
9 super-investors · 2025Q4
Tracked stake
2.36M
shares
Combined value
$23M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added3Trim4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Paul Tudor Jones Tudor Investment | 584.8K | $6M |
| 2 | Izzy Englander Millennium Mgmt | 504.1K | $5M |
| 3 | Ken Griffin Citadel Advisors | 376.4K | $4M |
| 4 | AQR Capital Management | 313.5K | $3M |
| 5 | Two Sigma Investments | 263.2K | $3M |
| 6 | Norges Bank Norway SWF | 145.8K | $1M |
| 7 | T. Rowe Price | 119.6K | $1M |
| 8 | Ken Griffin Citadel Advisors | 32.3K | $313K |
| 9 | Ken Griffin Citadel Advisors | 25.3K | $245K |
Recent moves
20 transactions
- +584,800 · 2025Q4
- −358,093 · 2025Q4
- SOLDD.E. Shaw & Co.−111,562 · 2025Q4
- −2,708 · 2025Q4
- +6,181 · 2025Q4
- +485,203 · 2025Q4
- +43,774 · 2025Q4
- −32,540 · 2025Q4
- +145,800 · 2025Q4
- −326,775 · 2025Q3
- +5,290 · 2025Q3
- −17,226 · 2025Q3
- TRIMD.E. Shaw & Co.−105,108 · 2025Q3
- +8,632 · 2025Q3
- +165,197 · 2025Q3
- +32,540 · 2025Q3
- −118,355 · 2025Q3
- −151,757 · 2024Q3
- +243,914 · 2025Q2
- −55,396 · 2025Q2
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