AMKR
Amkor Technology, Inc. · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth +15.4% ·
share flow +3.6% ·
net new positions +13.3%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 160.07K | $7.98M | n/a | −1 |
| Q2 2026 | 128 | +6 | 85.31M | $7.32B | +12 | −7 |
| Q1 2026 | 126 | +6 | 90.67M | $4.06B | +9 | −4 |
| Q4 2025 | 121 | 0 | 90.09M | $3.56B | +2 | −1 |
| Q3 2025 | 20 | -1 | 49.49M | $1.41B | n/a | −2 |
| Q2 2025 | 19 | +1 | 48.84M | $1.03B | +1 | n/a |
| Q1 2025 | 15 | 0 | 14.78M | $266.66M | +1 | −1 |
| Q4 2024 | 15 | +2 | 13.38M | $343.87M | +2 | n/a |
| Q3 2024 | 12 | -3 | 9.35M | $286.11M | n/a | −3 |
| Q2 2024 | 15 | n/a | 9.85M | $394.15M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 3.57M | n/a | $91.80M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 2.11M | +0.7% | $54.21M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 3 | AQR Capital Management ✦ | 1.81M | -27.3% | $46.61M | 0.1% | ▼ Trim | 3 | SEC ↗ ×4 |
| 4 | Wellington Management ✦ | 1.53M | +34.9% | $39.29M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 5 | Norges Bank ✦ (passive) | 1.26M | -0.5% | $32.48M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 923.17K | +90.1% | $23.72M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 7 | Fisher Asset Management ✦ | 641.92K | +205.1% | $16.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | Bridgewater Associates ✦ | 526.24K | +18.5% | $13.52M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 9 | Renaissance Technologies ✦ | 371.70K | New | $9.55M | 0.0% | New | 1 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 237.15K | +47.3% | $6.09M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | Gotham Asset Management ✦ | 150.49K | -13.3% | $3.87M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | T. Rowe Price ✦ | 140.10K | -15.7% | $3.60M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 13 | Millennium Management ✦ | 61.19K | +752.1% | $1.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | Marshall Wace ✦ | 27.72K | New | $712,050 | 0.0% | New | 1 | SEC ↗ ×2 |
| 15 | Arrowstreet Capital ✦ | 14.03K | -98.0% | $360,328 | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Renaissance Technologies | $9.55M | 0.0% |
| Marshall Wace | $712,050 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 522 holders, 115.80M shares, $4.96B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 1.00K sh · $46,920
Director · 5.00K sh · $275,000
Officer · 1.00K sh · $49,050
Officer · 5.00K sh · $298,900
Officer · 1.00K sh · $54,450
Director · 5.00K sh · $279,050
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology