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IMOS

Chipmos Technologies Inc

Company with tickers: IMOS

CIK
1123134
CUSIP
16965P202
Shares Outstanding
34,770,906
13F Activity (30d)
45 filings 43 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 74
Total Value: $85,090,096
Total Shares: 2,378,148

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 74 13F filers · Δ vs Dec 31, 2025
Top Holder
47.0%
Jun 2023 → Mar 2026 · range 46.1% – 53.1%
−5.3 pts
Top 5
74.4%
Jun 2023 → Mar 2026 · range 69.6% – 83.2%
−8.7 pts
Top 10
84.9%
Jun 2023 → Mar 2026 · range 83.9% – 92.8%
−5.9 pts
HHI
2,475
Jun 2023 → Mar 2026 · range 2,337 – 3,084
Moderately concentrated −578

Quarterly Activity

vs Dec 31, 2025
New
21
Increased
22
Decreased
14
Sold Out
6
Unchanged
17
Holder count: +15
Institutional value: +33.5%
Shares held: +10.6%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Showing 74 of 74
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Holder Value (USD) % of 13F Shares Open