Who owns CHIPMOS TECHNOLOGIES INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of IMOS from SEC Form 13F filings across 91 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 91 institutions disclosed 2.8M shares of CHIPMOS TECHNOLOGIES INC worth $176.6M — about 7.7% of shares outstanding; the largest disclosed holder is RENAISSANCE TECHNOLOGIES LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
91
13F holders
$176.6M
value, 2026 filers
7.7%
of shares outstanding (2.8M sh)
29
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of IMOS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | RENAISSANCE TECHNOLOGIES LLC | 1.1M | $71.1M | 0.1% | 3.1% | -1.1% |
| 2 | BlackRock, Inc. | 255,464 | $16.4M | 0.0% | 0.7% | +0.4% |
| 3 | ACADIAN ASSET MANAGEMENT LLC | 197,066 | $12.6M | 0.0% | 0.6% | -12.6% |
| 4 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 172,425 | $11.1M | 0.1% | 0.5% | +116.3% |
| 5 | XY Capital LtdNEW | 130,326 | $8.4M | 8.1% | 0.4% | new |
| 6 | DIMENSIONAL FUND ADVISORS LP | 88,685 | $5.7M | 0.0% | 0.2% | -3.9% |
| 7 | Vanguard Personalized Indexing Management, LLC | 72,464 | $4.7M | 0.0% | 0.2% | +5.5% |
| 8 | ENVESTNET ASSET MANAGEMENT INC | 53,138 | $3.4M | 0.0% | 0.1% | -2.9% |
| 9 | JANE STREET GROUP, LLC | 52,853 | $3.4M | 0.0% | 0.1% | +480.0% |
| 10 | TWO SIGMA INVESTMENTS, LP | 50,810 | $3.3M | 0.0% | 0.1% | +68.1% |
| 11 | Creative Planning | 49,378 | $3.2M | 0.0% | 0.1% | +10.1% |
| 12 | MARSHALL WACE, LLP | 34,423 | $2.2M | 0.0% | 0.1% | +5.6% |
| 13 | RENAISSANCE GROUP LLC | 34,140 | $2.2M | 0.1% | 0.1% | -3.0% |
| 14 | Qube Research & Technologies LtdNEW | 32,641 | $2.1M | 0.0% | 0.1% | new |
| 15 | Caprock Group, LLC | 30,909 | $2.0M | 0.0% | 0.1% | +88.5% |
| 16 | Ballentine Partners, LLC | 26,847 | $1.7M | 0.0% | 0.1% | +17.4% |
| 17 | RHUMBLINE ADVISERS | 25,707 | $1.7M | 0.0% | 0.1% | +5.4% |
| 18 | JPMORGAN CHASE & CO | 21,887 | $1.3M | 0.0% | 0.1% | +27258.8% |
| 19 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 20,814 | $1.3M | 0.0% | 0.1% | new |
| 20 | SIGNATUREFD, LLC | 20,711 | $1.3M | 0.0% | 0.1% | -0.9% |
| 21 | XTX Topco Ltd | 19,773 | $1.3M | 0.0% | 0.1% | +128.2% |
| 22 | LVW Advisors, LLC | 18,898 | $1.2M | 0.1% | 0.1% | +99.2% |
| 23 | CITADEL ADVISORS LLC | 17,647 | $1.1M | 0.0% | 0% | -29.0% |
| 24 | Trexquant Investment LP | 16,441 | $1.1M | 0.0% | 0% | +120.2% |
| 25 | Kathmere Capital Management, LLC | 13,395 | $860,629 | 0.0% | 0% | +135.4% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.