- Quarter end
- 30 Sep 2025
- the date the book describes
- Filed
- 9 Dec 2025
- latest of these filings; the earliest 12 Nov 2025
- Managers listing it
- 14
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q2 2025 and Q3 2025; 8 listed it in both
- Shares listed
- 19,315,423
- combined, among listed positions
- Reported value
- $1.6bn
- combined, at the quarter end
Among the 95 comparable managers: 11 buyers (opened or added shares) and 4 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing ALSN in Q3 2025
14 of 14 holders
Largest increases and reductions, by shares
Increases
- Arrowstreet Capital LPexisting position · 703,224 shares now+213,849
- Voloridge Investment Management LLCnew position · 142,674 shares now+142,674
- Tudor Investment Corpexisting position · 314,434 shares now+133,620
- Bridgewater Associates LPexisting position · 273,666 shares now+82,075
- Renaissance Technologies LLCexisting position · 3,034,124 shares now+75,600
Reductions
- Fidelity (FMR LLC)existing position · 11,924,156 shares now-261,835
- AQR Capital Management LLCexisting position · 1,888,335 shares now-27,552
- Harris Associates LPexisting position · 710,157 shares now-2,570
New positions and exits
New (3)
Exited (1)
- Polen Capital Management LLCwas $417k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 2 | $208m | n.a. | n.a. |
| Q3 2013 | 3 | $365m | n.a. | n.a. |
| Q4 2013 | 9 | $827m | n.a. | n.a. |
| Q1 2014 | 9 | $1.0bn | n.a. | n.a. |
| Q2 2014 | 17 | $1.6bn | n.a. | n.a. |
| Q3 2014 | 15 | $1.4bn | n.a. | n.a. |
| Q4 2014 | 11 | $1.6bn | n.a. | n.a. |
| Q1 2015 | 13 | $1.5bn | n.a. | n.a. |
| Q2 2015 | 12 | $1.4bn | n.a. | n.a. |
| Q3 2015 | 12 | $1.3bn | n.a. | n.a. |
| Q4 2015 | 9 | $1.2bn | n.a. | n.a. |
| Q1 2016 | 11 | $1.2bn | n.a. | n.a. |
| Q2 2016 | 14 | $1.3bn | n.a. | n.a. |
| Q3 2016 | 13 | $1.6bn | n.a. | n.a. |
| Q4 2016 | 18 | $1.9bn | n.a. | n.a. |
| Q1 2017 | 16 | $1.6bn | n.a. | n.a. |
| Q2 2017 | 15 | $1.5bn | n.a. | n.a. |
| Q3 2017 | 12 | $1.4bn | n.a. | n.a. |
| Q4 2017 | 16 | $1.7bn | n.a. | n.a. |
| Q1 2018 | 11 | $1.4bn | n.a. | n.a. |
| Q2 2018 | 12 | $1.2bn | n.a. | n.a. |
| Q3 2018 | 15 | $1.4bn | n.a. | n.a. |
| Q4 2018 | 13 | $953m | n.a. | n.a. |
| Q1 2019 | 14 | $827m | n.a. | n.a. |
| Q2 2019 | 17 | $718m | n.a. | n.a. |
| Q3 2019 | 13 | $939m | n.a. | n.a. |
| Q4 2019 | 12 | $1.2bn | n.a. | n.a. |
| Q1 2020 | 10 | $896m | n.a. | n.a. |
| Q2 2020 | 16 | $1.2bn | n.a. | n.a. |
| Q3 2020 | 11 | $1.0bn | n.a. | n.a. |
| Q4 2020 | 8 | $1.1bn | n.a. | n.a. |
| Q1 2021 | 13 | $1.0bn | n.a. | n.a. |
| Q2 2021 | 6 | $1.1bn | n.a. | n.a. |
| Q3 2021 | 6 | $935m | n.a. | n.a. |
| Q4 2021 | 7 | $946m | n.a. | n.a. |
| Q1 2022 | 8 | $1.0bn | n.a. | n.a. |
| Q2 2022 | 13 | $1.1bn | n.a. | n.a. |
| Q3 2022 | 10 | $418m | n.a. | n.a. |
| Q4 2022 | 10 | $845m | n.a. | n.a. |
| Q1 2023 | 11 | $917m | n.a. | n.a. |
| Q2 2023 | 8 | $1.1bn | n.a. | n.a. |
| Q3 2023 | 9 | $1.1bn | n.a. | n.a. |
| Q4 2023 | 9 | $1.0bn | 5 | 4 |
| Q1 2024 | 10 | $1.4bn | 6 | 4 |
| Q2 2024 | 9 | $1.3bn | 3 | 7 |
| Q3 2024 | 9 | $1.9bn | 2 | 6 |
| Q4 2024 | 9 | $2.1bn | 6 | 3 |
| Q1 2025 | 10 | $1.8bn | 5 | 5 |
| Q2 2025 | 10 | $1.8bn | 6 | 4 |
| Q3 2025 | 14 | $1.6bn | 11 | 4 |
| Q4 2025 | 18 | $2.1bn | 15 | 24 |
| Q1 2026 | 15 | $2.4bn | 19 | 19 |
| Q2 2026 | 13 | $1.9bn | 13 | 24 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
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How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own ALSN, latest filings →Back to the 13F Explorer →