- Quarter end
- 31 Mar 2025
- the date the book describes
- Filed
- 15 May 2025
- latest of these filings; the earliest 2 May 2025
- Managers listing it
- 4
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q4 2024 and Q1 2025; 3 listed it in both
- Shares listed
- 925,810
- combined, among listed positions
- Reported value
- $64m
- combined, at the quarter end
Among the 95 comparable managers: 4 buyers (opened or added shares) and 0 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +92,099.
Managers listing AIN in Q1 2025
4 of 4 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| MFS Investment Management | 830,948 | $57m | under 0.1% | Added | +53,400 | 2 May 2025 (the filing on sec.gov) |
| GAMCO Investors Inc | 49,330 | $3.4m | under 0.1% | Added | +250 | 14 May 2025 (the filing on sec.gov) |
| Winton Group Ltd | 36,958 | $2.6m | 0.16% | New | new | 15 May 2025 (the filing on sec.gov) |
| Freestone Grove Partners LP | 8,574 | $592k | under 0.1% | Added | +1,491 | 15 May 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- MFS Investment Managementexisting position · 830,948 shares now+53,400
- Winton Group Ltdnew position · 36,958 shares now+36,958
- Freestone Grove Partners LPexisting position · 8,574 shares now+1,491
- GAMCO Investors Incexisting position · 49,330 shares now+250
Reductions
No reduction among listed positions.
New positions and exits
New (1)
- Winton Group Ltd$2.6m
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 1 | $3.6m | n.a. | n.a. |
| Q3 2013 | 1 | $3.9m | n.a. | n.a. |
| Q4 2013 | 1 | $3.9m | n.a. | n.a. |
| Q1 2014 | 1 | $3.8m | n.a. | n.a. |
| Q2 2014 | 1 | $3.9m | n.a. | n.a. |
| Q3 2014 | 1 | $3.3m | n.a. | n.a. |
| Q4 2014 | 1 | $3.5m | n.a. | n.a. |
| Q1 2015 | 1 | $3.4m | n.a. | n.a. |
| Q2 2015 | 2 | $103m | n.a. | n.a. |
| Q3 2015 | 1 | $2.4m | n.a. | n.a. |
| Q4 2015 | 2 | $97m | n.a. | n.a. |
| Q1 2016 | 3 | $134m | n.a. | n.a. |
| Q2 2016 | 3 | $148m | n.a. | n.a. |
| Q3 2016 | 3 | $161m | n.a. | n.a. |
| Q4 2016 | 3 | $169m | n.a. | n.a. |
| Q1 2017 | 3 | $169m | n.a. | n.a. |
| Q2 2017 | 4 | $177m | n.a. | n.a. |
| Q3 2017 | 4 | $55m | n.a. | n.a. |
| Q4 2017 | 3 | $12m | n.a. | n.a. |
| Q1 2018 | 4 | $142m | n.a. | n.a. |
| Q2 2018 | 2 | $137m | n.a. | n.a. |
| Q3 2018 | 4 | $195m | n.a. | n.a. |
| Q4 2018 | 2 | $3.9m | n.a. | n.a. |
| Q1 2019 | 3 | $12m | n.a. | n.a. |
| Q2 2019 | 2 | $23m | n.a. | n.a. |
| Q3 2019 | 2 | $64m | n.a. | n.a. |
| Q4 2019 | 3 | $12m | n.a. | n.a. |
| Q1 2020 | 3 | $13m | n.a. | n.a. |
| Q2 2020 | 2 | $9.8m | n.a. | n.a. |
| Q3 2020 | 3 | $4.6m | n.a. | n.a. |
| Q4 2020 | 4 | $8.9m | n.a. | n.a. |
| Q1 2021 | 1 | $4.7m | n.a. | n.a. |
| Q2 2021 | 2 | $8.9m | n.a. | n.a. |
| Q3 2021 | 2 | $7.6m | n.a. | n.a. |
| Q4 2021 | 1 | $4.7m | n.a. | n.a. |
| Q1 2022 | 1 | $4.5m | n.a. | n.a. |
| Q2 2022 | 1 | $4.2m | n.a. | n.a. |
| Q3 2022 | 2 | $5.1m | n.a. | n.a. |
| Q4 2022 | 2 | $5.6m | n.a. | n.a. |
| Q1 2023 | 2 | $5.7m | n.a. | n.a. |
| Q2 2023 | 4 | $17m | n.a. | n.a. |
| Q3 2023 | 3 | $6.2m | n.a. | n.a. |
| Q4 2023 | 2 | $5.6m | 0 | 1 |
| Q1 2024 | 2 | $5.5m | 1 | 0 |
| Q2 2024 | 2 | $9.3m | 2 | 0 |
| Q3 2024 | 1 | $4.3m | 0 | 1 |
| Q4 2024 | 3 | $67m | 2 | 0 |
| Q1 2025 | 4 | $64m | 4 | 0 |
| Q2 2025 | 2 | $64m | 1 | 0 |
| Q3 2025 | 5 | $22m | 5 | 0 |
| Q4 2025 | 5 | $28m | 19 | 10 |
| Q1 2026 | 5 | $72m | 16 | 11 |
| Q2 2026 | 4 | $83m | 11 | 20 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
AIN and AMZN →AIN and TSLA →AIN and HD →Choose a stock to compare with AIN →
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 AIN, latest filings →Back to the 13F Explorer →