ChipMOS TECHNOLOGIES Inc. (IMOS) has 4 known insider and institutional holders on record. The largest holder is Cheng Shih Jye with 1,000,000 shares. Other notable holders include Su Yu-Chiao and Tsai Teng-Yueh.
Over the last 12 months, insiders have made 11 transactions in IMOS stock — 0 buys (valued at RSU Award) and 0 sells (valued at RSU Award).
IMOS Insider Ownership
Top Holder
Cheng Shih Jye
1,000,000 shares
Buys (12 mo)
0
$0.00 value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Cheng Shih Jye |
President |
1,000,000 |
2026-03-16 |
|
| 2 |
Su Yu-chiao |
Vice President |
346,101 |
2026-03-13 |
|
| 3 |
Tsai Teng-yueh |
Executive Vice President |
272,572 |
2026-03-13 |
|
| 4 |
Hsu Yuan-feng |
Executive Vice President |
230,130 |
2026-03-13 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-16 |
Cheng Shih Jye |
President |
Unknown |
- |
- |
- |
| 2026-03-13 |
Lin Fu-chen |
Officer |
Unknown |
- |
- |
- |
| 2026-03-13 |
Su Yu-chiao |
Vice President |
Unknown |
- |
- |
- |
| 2026-03-13 |
Tang Yuh-fong |
Officer |
Unknown |
- |
- |
- |
| 2026-03-13 |
Wang Yeong-her |
Officer |
Unknown |
- |
- |
- |
| 2026-03-13 |
Chang Pao-hsin |
Officer |
Unknown |
- |
- |
- |
| 2026-03-13 |
Chien Kun-yi |
Officer |
Unknown |
- |
- |
- |
| 2026-03-13 |
Yang Hong-tzer |
Officer |
Unknown |
- |
- |
- |
| 2026-03-13 |
Tsai Teng-yueh |
Executive Vice President |
Unknown |
- |
- |
- |
| 2026-03-13 |
Hsu Yuan-feng |
Executive Vice President |
Unknown |
- |
- |
- |
| 2026-03-13 |
Wang Jyh-chau |
Officer |
Unknown |
- |
- |
- |
