AMKR in the 13F filings
Amkor Technology Inc · CUSIP 031652100
- Quarter end
- 31 Mar 2025
- the date the book describes
- Filed
- 15 May 2025
- latest of these filings; the earliest 12 May 2025
- Managers listing it
- 7
- 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
- 4,480,286
- combined, among listed positions
- Reported value
- $80m
- combined, at the quarter end
Among the 95 comparable managers: 6 buyers (opened or added shares) and 2 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 AMKR in Q1 2025
7 of 7 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| AQR Capital Management LLC | 2,572,313 | $46m | under 0.1% | Added | +757,956 | 15 May 2025 (the filing on sec.gov) |
| Voloridge Investment Management LLC | 1,127,423 | $20m | 0.08% | Added | n.a. | 15 May 2025 (the filing on sec.gov) |
| First Eagle Investment Management LLC | 424,500 | $7.7m | under 0.1% | Trimmed | -106,800 | 12 May 2025 (the filing on sec.gov) |
| Quantbot Technologies LP | 138,287 | $2.5m | 0.08% | New | new | 13 May 2025 (the filing on sec.gov) |
| Davidson Kempner Capital Management LP | 82,746 | $1.5m | under 0.1% | New | new | 15 May 2025 (the filing on sec.gov) |
| Brevan Howard Capital Management LP | 78,038 | $1.4m | under 0.1% | New | new | 15 May 2025 (the filing on sec.gov) |
| Winton Group Ltd | 56,979 | $1.0m | 0.06% | Added | +24,883 | 15 May 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- AQR Capital Management LLCexisting position · 2,572,313 shares now+757,956
- Quantbot Technologies LPnew position · 138,287 shares now+138,287
- Davidson Kempner Capital Management LPnew position · 82,746 shares now+82,746
- Brevan Howard Capital Management LPnew position · 78,038 shares now+78,038
- Winton Group Ltdexisting position · 56,979 shares now+24,883
Reductions
- First Eagle Investment Management LLCexisting position · 424,500 shares now-106,800
New positions and exits
New (3)
Exited (1)
- Bridgewater Associates LPwas $14m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 1 | $521k | n.a. | n.a. |
| Q4 2013 | 1 | $852k | n.a. | n.a. |
| Q1 2014 | 1 | $8.0m | n.a. | n.a. |
| Q2 2014 | 4 | $150m | n.a. | n.a. |
| Q3 2014 | 4 | $89m | n.a. | n.a. |
| Q4 2014 | 3 | $52m | n.a. | n.a. |
| Q1 2015 | 2 | $57m | n.a. | n.a. |
| Q2 2015 | 2 | $37m | n.a. | n.a. |
| Q3 2015 | 2 | $12m | n.a. | n.a. |
| Q4 2015 | 1 | $5.3m | n.a. | n.a. |
| Q1 2016 | 1 | $3.7m | n.a. | n.a. |
| Q3 2016 | 1 | $38m | n.a. | n.a. |
| Q4 2016 | 4 | $79m | n.a. | n.a. |
| Q1 2017 | 6 | $109m | n.a. | n.a. |
| Q2 2017 | 2 | $33m | n.a. | n.a. |
| Q3 2017 | 2 | $31m | n.a. | n.a. |
| Q4 2017 | 1 | $388k | n.a. | n.a. |
| Q1 2018 | 2 | $732k | n.a. | n.a. |
| Q4 2018 | 2 | $952k | n.a. | n.a. |
| Q1 2019 | 1 | $18m | n.a. | n.a. |
| Q2 2019 | 1 | $315k | n.a. | n.a. |
| Q3 2019 | 2 | $18m | n.a. | n.a. |
| Q4 2019 | 5 | $42m | n.a. | n.a. |
| Q1 2020 | 2 | $17m | n.a. | n.a. |
| Q2 2020 | 3 | $39m | n.a. | n.a. |
| Q3 2020 | 4 | $31m | n.a. | n.a. |
| Q4 2020 | 3 | $46m | n.a. | n.a. |
| Q1 2021 | 2 | $42m | n.a. | n.a. |
| Q2 2021 | 2 | $144k | n.a. | n.a. |
| Q3 2021 | 4 | $53m | n.a. | n.a. |
| Q4 2021 | 4 | $37m | n.a. | n.a. |
| Q1 2022 | 4 | $53m | n.a. | n.a. |
| Q2 2022 | 4 | $53m | n.a. | n.a. |
| Q3 2022 | 3 | $38m | n.a. | n.a. |
| Q4 2022 | 4 | $61m | n.a. | n.a. |
| Q1 2023 | 6 | $100m | n.a. | n.a. |
| Q2 2023 | 8 | $210m | n.a. | n.a. |
| Q3 2023 | 11 | $195m | n.a. | n.a. |
| Q4 2023 | 8 | $293m | 5 | 6 |
| Q1 2024 | 10 | $268m | 8 | 2 |
| Q2 2024 | 9 | $345m | 6 | 5 |
| Q3 2024 | 5 | $217m | 5 | 0 |
| Q4 2024 | 5 | $179m | 2 | 3 |
| Q1 2025 | 7 | $80m | 6 | 2 |
| Q2 2025 | 4 | $100m | 3 | 3 |
| Q3 2025 | 5 | $174m | 3 | 2 |
| Q4 2025 | 6 | $393m | 20 | 15 |
| Q1 2026 | 12 | $570m | 22 | 16 |
| Q2 2026 | 10 | $747m | 14 | 25 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
AMKR and NVDA →AMKR and AVGO →AMKR and MU →Choose a stock to compare with AMKR →
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 AMKR, latest filings →Back to the 13F Explorer →