AMKR
Amkor Technology, Inc. · Technology · Semiconductors
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +10.4% · net new positions 0.0% · formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| 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 | 0.0% | $64.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | AQR Capital Management ✦ | 2.57M | +41.8% | $45.97M | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 3 | Geode Capital Management ✦ (passive) | 2.23M | +5.6% | $40.25M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 4 | D. E. Shaw & Co. ✦ | 1.76M | +91.1% | $31.85M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 5 | Renaissance Technologies ✦ | 1.37M | +268.5% | $24.74M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | Norges Bank ✦ (passive) | 801.26K | -36.6% | $14.47M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | Fisher Asset Management ✦ | 653.14K | +1.8% | $11.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | Wellington Management ✦ | 476.99K | -68.8% | $8.61M | 0.0% | ▼ Trim | 4 | SEC ↗ ×4 |
| 9 | Millennium Management ✦ | 394.00K | +543.9% | $7.12M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | Arrowstreet Capital ✦ | 318.40K | +2170.1% | $5.75M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Citadel Advisors ✦ | 243.72K | +2.8% | $4.40M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 12 | Gotham Asset Management ✦ | 138.70K | -7.8% | $2.50M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 13 | Two Sigma Investments ✦ | 135.61K | New | $2.45M | 0.0% | New | 1 | SEC ↗ |
| 14 | T. Rowe Price ✦ | 75.07K | -46.4% | $1.36M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 15 | Marshall Wace ✦ | 31.72K | +14.4% | $572,809 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Two Sigma Investments | $2.45M | 0.0% |
Exited
| Bridgewater Associates | $13.52M | was 0.1% |
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