Ticker · CUSIP 01973R101
Holders (tracked)
16
Combined shares
8,540,686
Combined value
$836.13M
Last close
$128.50
Quarter
2025Q4
Price · 1Y$128.50+40.73 (+46.40%)H $129.60 · L $78.81 · Avg Vol 878K
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
Price is +31.3% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
29 events
- +65,153 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−386,638 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+77,543 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−345,525 shares · 2025Q4Position
- Bill Nygren (Harris / Oakmark) trimmed2026-02-17−31,630 shares · 2025Q4Position
- Two Sigma Investments trimmed2026-02-17−105,460 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+826,352 shares · 2025Q4Position
- Steve Cohen (Point72) added2026-02-17+32,719 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+3,757 shares · 2025Q4Position
- Jeremy Grantham (GMO) added2026-02-17+4,095 shares · 2025Q4Position
- −109,999 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−435,027 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+1,181,548 shares · 2025Q4Position
- Mario Gabelli (GAMCO) trimmed2026-02-05−84 shares · 2025Q4Position
- −180,814 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+208,299 shares · 2025Q3Position
- AQR Capital Management trimmed2025-11-14−27,552 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+246,204 shares · 2025Q3Position
- Steve Cohen (Point72) added2025-11-14+118,215 shares · 2025Q3Position
- Two Sigma Investments trimmed2025-11-14−22,389 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+35,100 shares · 2025Q3Position
- Wellington Management exited2025-11-14−29,834 shares · 2025Q3Position
- Bill Nygren (Harris / Oakmark) trimmed2025-11-14−2,570 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+75,600 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−1,056,394 shares · 2025Q3Position
- Jeremy Grantham (GMO) trimmed2025-11-13−1,262 shares · 2025Q3Position
- Ray Dalio (Bridgewater Associates) added2025-11-13+82,075 shares · 2025Q3Position
- Norges Bank (Norway SWF) trimmed2025-11-12−10,453 shares · 2024Q3Position
- Mario Gabelli (GAMCO) added2025-11-12+679 shares · 2025Q3Position
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-14 | Mell Scott A CFO & Treasurer · Insider | M | 2,842 | — | — |
| 04-14 | Mell Scott A CFO & Treasurer · Insider | F | 879 | $128.26 | $112.7K |
| 04-14 | Mell Scott A CFO & Treasurer · Insider | M | 23 | — | — |
Follow-the-investor returns
If you'd copied each holder of ALSN…
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 |
|---|---|---|---|---|
| Norges Bank (Norway SWF) | 2016Q1 | $44.45 | +189.1% | $151.8M |
| Renaissance Technologies | 2016Q1 | $46.30 | +177.5% | $334.0M |
| AQR Capital Management | 2016Q1 | $51.59 | +149.1% | $198.3M |
| Bill Nygren (Harris / Oakmark) | 2021Q1 | $64.96 | +97.8% | $87.2M |
| Jeremy Grantham (GMO) | 2020Q1 | $73.80 | +74.1% | $1.7M |
| Ray Dalio (Bridgewater Associates) | 2019Q4 | $78.23 | +64.3% | $21.0M |
| Steve Cohen (Point72) | 2016Q1 | $83.65 | +53.6% | $21.2M |
| T. Rowe Price | 2016Q1 | $87.23 | +47.3% | $45.8M |
| D.E. Shaw & Co. | 2016Q1 | $89.07 | +44.3% | $44.0M |
| Two Sigma Investments | 2016Q1 | $92.57 | +38.8% | $11.1M |
| Mario Gabelli (GAMCO) | 2025Q2 | $93.93 | +36.8% | $819K |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $94.11 | +36.5% | $161.6M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $94.97 | +35.3% | $8.4M |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $96.94 | +32.6% | $2.0M |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $96.94 | +32.6% | $2.0M |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $96.94 | +32.6% | $2.0M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions2
- Norges Bank (Norway SWF)+1,181,548$115.7M
- Paul Tudor Jones (Tudor Investment)+65,153$6.4M
Added to5
- Izzy Englander (Millennium Mgmt)+826,352$80.9M
- D.E. Shaw & Co.+77,543$7.6M
- Steve Cohen (Point72)+32,719$3.2M
- Jeremy Grantham (GMO)+4,095$401K
- T. Rowe Price+3,757$368
Trimmed7
- Renaissance Technologies−435,027$42.6M
- Ken Griffin (Citadel Advisors)−386,638$37.9M
- AQR Capital Management−345,525$33.8M
- Ray Dalio (Bridgewater Associates)−109,999$10.8M
- Two Sigma Investments−105,460$10.3M
- Bill Nygren (Harris / Oakmark)−31,630$3.1M
- Mario Gabelli (GAMCO)−84$8K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 15 | $40.58B |
| 2022Q2 | 17 | $35.63B |
| 2022Q3 | 16 | $556.2M |
| 2022Q4 | 17 | $587.7M |
| 2023Q1 | 15 | $622.2M |
| 2023Q2 | 16 | $719.6M |
| 2023Q3 | 16 | $788.5M |
| 2023Q4 | 14 | $742.4M |
| 2024Q1 | 15 | $1.02B |
| 2024Q2 | 15 | $932.2M |
| 2024Q3 | 15 | $715.0M |
| 2024Q4 | 14 | $743.0M |
| 2025Q1 | 15 | $595.9M |
| 2025Q2 | 17 | $775.1M |
| 2025Q3 | 14 | $659.9M |
| 2025Q4 | 16 | $836.1M |
Who owns ALSN
16 super-investors · 2025Q4
Tracked stake
8.54M
shares
Combined value
$836M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added5Trim9
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 2.60M | $254M |
| 2 | AQR Capital Management | 1.54M | $151M |
| 3 | Izzy Englander Millennium Mgmt | 1.26M | $123M |
| 4 | Norges Bank Norway SWF | 1.18M | $116M |
| 5 | Bill Nygren Harris / Oakmark | 678.5K | $66M |
| 6 | T. Rowe Price | 356.3K | $35M |
| 7 | D.E. Shaw & Co. | 342.1K | $33M |
| 8 | Steve Cohen Point72 | 164.6K | $16M |
| 9 | Ray Dalio Bridgewater Associates | 163.7K | $16M |
| 10 | Two Sigma Investments | 86.3K | $8M |
| 11 | Paul Tudor Jones Tudor Investment | 65.2K | $6M |
| 12 | Ken Griffin Citadel Advisors | 63.7K | $6M |
| 13 | Ken Griffin Citadel Advisors | 15.9K | $2M |
| 14 | Jeremy Grantham GMO | 13.0K | $1M |
| 15 | Mario Gabelli GAMCO | 6.4K | $624K |
| 16 | Ken Griffin Citadel Advisors | 4.2K | $411K |
Recent moves
20 transactions
- +65,153 · 2025Q4
- −31,630 · 2025Q4
- +826,352 · 2025Q4
- +4,095 · 2025Q4
- −105,460 · 2025Q4
- +77,543 · 2025Q4
- +32,719 · 2025Q4
- +3,757 · 2025Q4
- −386,638 · 2025Q4
- −345,525 · 2025Q4
- −109,999 · 2025Q4
- −435,027 · 2025Q4
- +1,181,548 · 2025Q4
- −84 · 2025Q4
- −180,814 · 2025Q3
- +208,299 · 2025Q3
- +246,204 · 2025Q3
- +118,215 · 2025Q3
- −22,389 · 2025Q3
- +35,100 · 2025Q3
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