Ticker · CUSIP 012348108
Holders (tracked)
9
Combined shares
1,729,495
Combined value
$86.14M
Last close
$55.81
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
Price is +12.1% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
18 events
- Ken Griffin (Citadel Advisors) added2026-02-17+117,726 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+464,954 shares · 2025Q4Position
- Two Sigma Investments trimmed2026-02-17−57,641 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+77,073 shares · 2025Q4Position
- Steve Cohen (Point72) opened position2026-02-17+108,405 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+5,139 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+10,246 shares · 2025Q4Position
- Mario Gabelli (GAMCO) added2026-02-05+121,614 shares · 2025Q4Position
- First Eagle Investment Management added2026-02-04+72,829 shares · 2025Q4Position
- Steve Cohen (Point72) exited2025-11-14−16,294 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+66,644 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+287,200 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+40,408 shares · 2025Q3Position
- AQR Capital Management trimmed2025-11-14−4,543 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+906 shares · 2025Q3Position
- Mario Gabelli (GAMCO) added2025-11-12+44,100 shares · 2025Q3Position
- +59,000 shares · 2025Q3Position
- Norges Bank (Norway SWF) added2025-11-12+20,800 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of AIN…
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 |
|---|---|---|---|---|
| T. Rowe Price | 2016Q1 | $48.02 | +16.2% | $1.7M |
| Mario Gabelli (GAMCO) | 2016Q1 | $49.53 | +12.7% | $12.0M |
| First Eagle Investment Management | 2025Q3 | $51.86 | +7.6% | $7.4M |
| Steve Cohen (Point72) | 2019Q2 | $53.87 | +3.6% | $6.1M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $54.04 | +3.3% | $21.8M |
| D.E. Shaw & Co. | 2016Q1 | $54.46 | +2.5% | $32.2M |
| AQR Capital Management | 2016Q1 | $60.33 | -7.5% | $938K |
| Ken Griffin (Citadel Advisors) | 2017Q1 | $62.63 | -10.9% | $10.8M |
| Two Sigma Investments | 2016Q1 | $64.16 | -13.0% | $3.7M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions1
- Steve Cohen (Point72)+108,405$5.5M
Added to7
- D.E. Shaw & Co.+464,954$23.6M
- Mario Gabelli (GAMCO)+121,614$6.2M
- Ken Griffin (Citadel Advisors)+117,726$6.0M
- Izzy Englander (Millennium Mgmt)+77,073$3.9M
- First Eagle Investment Management+72,829$3.7M
- AQR Capital Management+10,246$519K
- T. Rowe Price+5,139$261
Trimmed1
- Two Sigma Investments−57,641$2.9M
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 12 | $30.93B |
| 2022Q2 | 9 | $25.50B |
| 2022Q3 | 9 | $27.1M |
| 2022Q4 | 9 | $555.6M |
| 2023Q1 | 11 | $510.8M |
| 2023Q2 | 11 | $574.1M |
| 2023Q3 | 11 | $477.9M |
| 2023Q4 | 10 | $542.1M |
| 2024Q1 | 11 | $528.6M |
| 2024Q2 | 12 | $492.2M |
| 2024Q3 | 11 | $90.8M |
| 2024Q4 | 9 | $61.8M |
| 2025Q1 | 8 | $32.8M |
| 2025Q2 | 8 | $23.4M |
| 2025Q3 | 8 | $41.8M |
| 2025Q4 | 9 | $86.1M |
Who owns AIN
9 super-investors · 2025Q4
Tracked stake
1.73M
shares
Combined value
$86M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added7Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | D.E. Shaw & Co. | 576.3K | $29M |
| 2 | Izzy Englander Millennium Mgmt | 390.9K | $20M |
| 3 | Mario Gabelli GAMCO | 215.0K | $11M |
| 4 | Ken Griffin Citadel Advisors | 192.7K | $10M |
| 5 | First Eagle Investment Management | 131.8K | $7M |
| 6 | Steve Cohen Point72 | 108.4K | $5M |
| 7 | Two Sigma Investments | 67.1K | $3M |
| 8 | AQR Capital Management | 16.8K | $852K |
| 9 | T. Rowe Price | 30.5K | $2K |
Recent moves
20 transactions
- −57,641 · 2025Q4
- +5,139 · 2025Q4
- +117,726 · 2025Q4
- +77,073 · 2025Q4
- +10,246 · 2025Q4
- +108,405 · 2025Q4
- +464,954 · 2025Q4
- +121,614 · 2025Q4
- +72,829 · 2025Q4
- +906 · 2025Q3
- +40,408 · 2025Q3
- −4,543 · 2025Q3
- +287,200 · 2025Q3
- −16,294 · 2025Q3
- +66,644 · 2025Q3
- +44,100 · 2025Q3
- +20,800 · 2024Q3
- +59,000 · 2025Q3
- +7,294 · 2025Q2
- −65,304 · 2025Q2
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