IMOSNasdaqSemiconductors & Related DevicesFiscal year ends December 31
CHIPMOS TECHNOLOGIES INC
Financials through fiscal 2024, year ended Dec 31, 2024Last filing: 20-F on Apr 14, 2026
$61.97+0.55 (+0.90%)
Close on Oct 19, 2026
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
0.4%
3M of 700M shares
Institutional holders
91
30 new, 9 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Shares held by institutions
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of IMOS | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Renaissance Technologies LLC | 1,105,890 | 0.16% | $71.05M | −12,100 | 0.10% |
| BlackRock, Inc. | 255,464 | 0.04% | $16.41M | +1,138 | 0.00% |
| Acadian Asset Management LLC | 197,066 | 0.03% | $12.65K | −28,455 | 0.02% |
| O'Shaughnessy Asset Management, LLC | 172,425 | 0.02% | $11.08M | +92,702 | 0.05% |
| XY Capital Ltd | 130,326 | 0.02% | $8.37M | New | 8.08% |
| Dimensional Fund Advisors LP | 88,685 | 0.01% | $5.69M | −3,569 | 0.00% |
| Vanguard Personalized Indexing Management, LLC | 72,464 | 0.01% | $4.66M | +3,754 | 0.04% |
| Envestnet Asset Management Inc | 53,138 | 0.01% | $3.41M | −1,601 | 0.00% |
| Jane Street Group, LLC | 52,853 | 0.01% | $3.40M | +43,740 | 0.00% |
| Two Sigma Investments, LP | 50,810 | 0.01% | $3.26M | +20,589 | 0.00% |
| Creative Planning | 49,378 | 0.01% | $3.17M | +4,549 | 0.00% |
| Marshall Wace, Llp | 34,423 | 0.00% | $2.21M | +1,820 | 0.00% |
| Renaissance Group LLC | 34,140 | 0.00% | $2.19M | −1,040 | 0.09% |
| Qube Research & Technologies Ltd | 32,641 | 0.00% | $2.10M | New | 0.00% |
| Caprock Group, LLC | 30,909 | 0.00% | $2.01M | +14,512 | 0.04% |
| Ballentine Partners, LLC | 26,847 | 0.00% | $1.72M | +3,971 | 0.02% |
| Rhumbline Advisers | 25,707 | 0.00% | $1.65M | +1,314 | 0.00% |
| JPMorgan Chase & Co | 21,887 | 0.00% | $1.28M | +21,807 | 0.00% |
| Susquehanna International Group, Llp | 20,814 | 0.00% | $1.34M | New | 0.00% |
| Signaturefd, LLC | 20,711 | 0.00% | $1.33M | −186 | 0.02% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 91 | 3M | 0.4% | 30 / 29 | 18 / 9 | 1M | 0M |
| Q1 2026 | 72 | 2M | 0.3% | 21 / 21 | 14 / 5 | 0M | 0M |
| Q4 2025 | 57 | 2M | 0.3% | 9 / 15 | 18 / 3 | 0M | 0M |
| Q3 2025 | 51 | 2M | 0.3% | 5 / 14 | 17 / 5 | 0M | 0M |
| Q2 2025 | 51 | 2M | 0.3% | 11 / 16 | 12 / 5 | 0M | 0M |
| Q1 2025 | 46 | 2M | 0.3% | 3 / 10 | 19 / 6 | 0M | 0M |
| Q4 2024 | 50 | 2M | 0.3% | 6 / 14 | 19 / 11 | 0M | 0M |
| Q3 2024 | 56 | 2M | 0.3% | 7 / 13 | 25 / 9 | 0M | 0M |
| Q2 2024 | 59 | 3M | 0.4% | 5 / 17 | 24 / 6 | 0M | 0M |
| Q1 2024 | 61 | 3M | 0.4% | 10 / 25 | 12 / 4 | 0M | 0M |
| Q4 2023 | 55 | 3M | 0.4% | 10 / 15 | 19 / 3 | 0M | 0M |
| Q3 2023 | 48 | 3M | 0.4% | 10 / 19 | 10 / 8 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of IMOS | Value | % of fund | As of |
|---|---|---|---|---|---|
| Emerging Markets Core Equity 2 Portfolio | 60,690 | 0.01% | $2.88M | 0.01% | Jul 31, 2026 |
| Dimensional Emerging Markets Value Fund | 11,456 | 0.00% | $543.00K | 0.00% | Jul 31, 2026 |
| AAM Transformers ETF | 8,592 | 0.00% | $407.26K | 0.16% | Jul 31, 2026 |
| Dimensional World ex. U.S. Core Equity 2 ETF | 5,791 | 0.00% | $274.49K | 0.00% | Jul 31, 2026 |
| Harbor International Core Fund | 4,686 | 0.00% | $222.12K | 0.01% | Jul 31, 2026 |
| Fidelity Nasdaq Composite Index Fund | 3,698 | 0.00% | $259.82K | 0.00% | May 31, 2026 |
| ActivePassive International Equity ETF | 3,470 | 0.00% | $243.80K | 0.02% | May 31, 2026 |
| Dimensional Emerging Markets Value ETF | 2,748 | 0.00% | $130.26K | 0.01% | Jul 31, 2026 |
| Thrivent Core Emerging Markets Equity Fund | 2,672 | 0.00% | $126.65K | 0.01% | Jul 31, 2026 |
| Emerging Markets Social Core Equity Portfolio | 2,049 | 0.00% | $97.10K | 0.00% | Jul 31, 2026 |
| Dimensional Emerging Core Equity Market ETF | 1,958 | 0.00% | $92.81K | 0.00% | Jul 31, 2026 |
| Thrivent International Equity Fund | 1,053 | 0.00% | $49.91K | 0.00% | Jul 31, 2026 |
| Dimensional Emerging Markets ex China Core Equity ETF | 402 | 0.00% | $19.05K | 0.01% | Jul 31, 2026 |
| SA Emerging Markets Value Fund | 328 | 0.00% | $21.07K | 0.01% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Shih Jye Cheng | President, Director | 12,404,938 | 1.77% | Mar 16, 2026 |
| Yu-Chiao Su | Vice President, Director | 1,176,101 | 0.17% | Mar 13, 2026 |
| Yuan-Feng Hsu | Executive Vice President | 230,130 | 0.03% | Mar 13, 2026 |
| Teng-Yueh Tsai | Executive Vice President | 1,092,572 | 0.16% | Mar 13, 2026 |
| Pao-Hsin Chang | Director | – | – | Mar 13, 2026 |
| Yeong-Her Wang | Director | – | – | Mar 13, 2026 |
| Kun-Yi Chien | Director | – | – | Mar 13, 2026 |
| Jyh-Chau Wang | Director | – | – | Mar 13, 2026 |
| Yuh-Fong Tang | Director | – | – | Mar 13, 2026 |
| Fu-Chen Lin | Director | – | – | Mar 13, 2026 |
| Hong-Tzer Yang | Director | – | – | Mar 13, 2026 |