IMOS — CHIPMOS TECHNOLOGIES INC
As of Q2 2026, 13 SEC-registered investment managers reported holding IMOS (CHIPMOS TECHNOLOGIES INC) in their latest 13F filings, with a combined reported value of $98.07M across 1.53M shares. That is +2.9% by share count (+43.34K shares) versus the previous quarter, while reported value moved +84.6%. Ownership is concentrated: the five largest holders account for 96.8% of reported value and the top ten for 99.9%.
Compared with the prior quarter, 5 opened new positions, 5 added to existing stakes, 2 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
IMOS is classified in the Technology sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Renaissance Technologies history | Q2 2026 | 1.11M | $71.05M | 0.10% | Reduce |
| BlackRock Inc history | Q2 2026 | 255.46K | $16.41M | 0.00% | Hold |
| Two Sigma Investments history | Q2 2026 | 50.81K | $3.26M | 0.00% | Add |
| Marshall Wace history | Q2 2026 | 34.42K | $2.21M | 0.00% | Add |
| Citadel Advisors history | Q2 2026 | 30.15K | $1.94M | 0.00% | Add |
| JPMorgan Chase & Co history | Q2 2026 | 21.89K | $1.28M | 0.00% | New |
| Bank of America Corp history | Q2 2026 | 12.78K | $820.92K | 0.00% | Reduce |
| Morgan Stanley history | Q2 2026 | 7.97K | $512.08K | 0.00% | Add |
| Millennium Management history | Q1 2026 | 10.73K | $383.88K | 0.00% | New |
| Goldman Sachs Group history | Q2 2026 | 4.16K | $267.28K | 0.00% | New |
| Geode Capital Management history | Q2 2026 | 3.70K | $237.60K | 0.00% | New |
| UBS Group AG history | Q2 2026 | 568 | $36.49K | 0.00% | Add |
| Citigroup Inc history | Q2 2026 | 550 | $35.34K | 0.00% | New |
| Fidelity Management & Research (FMR) history | Q4 2022 | 191 | $4.09K | 0.00% | Hold |
| Arrowstreet Capital history | Q2 2024 | 103.20K | $2.69K | 0.00% | Hold |
| Lazard Asset Management history | Q2 2022 | 65 | $1.00K | 0.00% | Reduce |
| PNC Financial Services history | Q2 2025 | 7 | $127 | 0.00% | Reduce |
| Wells Fargo & Co history | Q2 2026 | 1 | $62 | 0.00% | New |
| Deutsche Bank AG history | Q3 2021 | 14 | $0 | — | New |
New Positions (Q2 2026)
- JPMorgan Chase & Co 21.89K sh · $1.28M
- Goldman Sachs Group 4.16K sh · $267.28K
- Geode Capital Management 3.70K sh · $237.60K
- Citigroup Inc 550 sh · $35.34K
- Wells Fargo & Co 1 sh · $62
Fully Exited (vs previous quarter)
- Millennium Management sold 10.73K sh · $383.88K
Fund Position History — shares by quarter (top 19 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Renaissance Technologies | 1.53M | 1.48M | 1.43M | 1.43M | 1.36M | 1.31M | 1.28M | 1.26M | 1.25M | 1.24M | 1.24M | 1.24M | 1.22M | 1.18M | 1.17M | 1.15M | 1.14M | 1.13M | 1.12M | 1.11M |
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 209.92K | 213.61K | 188.47K | 248.32K | 247.05K | 244.68K | 254.33K | 255.46K |
| Two Sigma Investments | 34.53K | 18.14K | — | 14.74K | 45.39K | 19.38K | 15.41K | 21.55K | 27.46K | 21.56K | 19.23K | 18.23K | 17.98K | 13.99K | — | — | — | — | 30.22K | 50.81K |
| Marshall Wace | 5.96K | — | — | — | 63.01K | 43.97K | 13.70K | — | — | — | — | — | — | — | — | — | — | — | 32.60K | 34.42K |
| Citadel Advisors | 14.76K | 19.37K | — | — | — | 19.25K | — | 11.46K | 8.68K | 8.93K | 25.62K | — | — | — | 17.45K | 44.78K | 37.66K | 16.27K | 24.86K | 30.15K |
| JPMorgan Chase & Co | — | — | — | 15 | — | — | 210 | 897 | — | — | 623 | 139 | 474 | 4.08K | 5.50K | 162 | 80 | 80 | — | 21.89K |
| Bank of America Corp | 2.79K | 2.47K | 3.27K | 3.83K | 2.83K | 7.55K | 7.39K | 7.27K | 7.34K | 7.45K | 8.24K | 7.77K | 7.93K | 8.61K | 6.90K | 11.85K | 13.04K | 13.70K | 12.92K | 12.78K |
| Morgan Stanley | 2.93K | 1.95K | 1.92K | 32.00K | 23.07K | 40.19K | 3.17K | 2.84K | 4.84K | 5.38K | 10.18K | 7.28K | 5.03K | 3.76K | 28.45K | 18.99K | 1.69K | 1.22K | 1.35K | 7.97K |
| Goldman Sachs Group | — | 18.82K | 18.63K | — | 33.47K | 17.31K | 29.46K | — | 11.75K | 31.11K | 23.16K | 24.49K | 31.57K | 49.85K | 37.57K | — | 27.14K | 27.96K | — | 4.16K |
| Geode Capital Management | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3.70K |
| UBS Group AG | — | — | — | 74 | 709 | — | 1.08K | — | — | 450 | 1.00K | 599 | 16.59K | 12.23K | 4.63K | 77 | 77 | 18.37K | 1 | 568 |
| Citigroup Inc | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 48 | — | 550 |
| Wells Fargo & Co | 1 | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | 1 | — | — | 1 | 1 | — | — | 1 |
| Millennium Management | — | 5.80K | — | — | 12.27K | — | 19.75K | 16.01K | — | — | 24.97K | 7.94K | — | — | — | — | — | — | 10.73K | — |
| Fidelity Management & Research (FMR) | 126 | 145 | 177 | 191 | 191 | 191 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deutsche Bank AG | 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Arrowstreet Capital | 97.69K | 116.36K | 96.44K | 85.13K | 81.47K | 107.58K | 109.27K | 109.27K | 109.27K | 109.27K | 103.20K | 103.20K | — | — | — | — | — | — | — | — |
| Lazard Asset Management | — | — | 84 | 65 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| PNC Financial Services | — | 11 | 19 | 12 | 26 | 14 | 39 | 38 | 24 | 25 | 26 | 27 | 25 | 10 | 32 | 7 | — | — | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details