IMOS Institutional Ownership & Shareholders
CHIPMOS TECHNOLOGIES INC-ADR (IMOS) is currently held by 93 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $170.42M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of IMOS tracked by InsiderSet, reporting ownership valued at approximately $71.05M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $48.42M, representing an estimated loss of -31.86% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 83% of the total disclosed IMOS value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Blackrock, Inc., Acadian Asset Management Llc, and several other long-term asset managers with concentrated positions in CHIPMOS TECHNOLOGIES INC-ADR (IMOS).
This page ranks the largest institutional IMOS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
93
Total Reported Value
$170.42M
Largest Holder
Renaissance Technologies LLC
Largest Position
$71.05M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
109
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.10% | 1,105,890 | $71,053,433 | $48,415,864 | -$22,637,569 | -31.86% |
| Blackrock, Inc. | 0.00% | 255,464 | $16,413,562 | $11,184,214 | -$5,229,348 | -31.86% | |
| Acadian Asset Management Llc | 0.02% | 197,066 | $12,648,000 | $8,627,549 | -$4,020,451 | -31.79% | |
| O'Shaughnessy Asset Management, Llc | 0.05% | 172,425 | $11,078,306 | $7,548,767 | -$3,529,540 | -31.86% | |
| Xy Capital Ltd | 9.62% | 130,326 | $8,373,446 | $5,705,672 | -$2,667,774 | -31.86% | |
| Dimensional Fund Advisors Lp | 0.00% | 87,758 | $6,296,860 | $3,842,045 | -$2,454,815 | -38.98% | |
| Vanguard Personalized Indexing Management, Llc | 0.04% | 72,464 | $4,655,812 | $3,172,474 | -$1,483,338 | -31.86% | |
| Barclays Plc | 0.00% | 57,000 | $4,090,890 | $2,495,460 | -$1,595,430 | -39.00% | |
| Creative Planning | 0.00% | 49,303 | $3,538,477 | $2,158,485 | -$1,379,992 | -39.00% | |
| Envestnet Asset Management Inc | 0.00% | 53,138 | $3,414,111 | $2,326,382 | -$1,087,729 | -31.86% | |
| Jane Street Group, Llc | 0.00% | 52,853 | $3,395,805 | $2,313,904 | -$1,081,901 | -31.86% | |
| Two Sigma Investments, Lp | 0.00% | 50,810 | $3,264,543 | $2,224,462 | -$1,040,081 | -31.86% | |
| Marshall Wace, Llp | 0.00% | 34,423 | $2,211,677 | $1,507,039 | -$704,638 | -31.86% | |
| Renaissance Group Llc | 0.09% | 34,140 | $2,193,495 | $1,494,649 | -$698,846 | -31.86% | |
| Qube Research & Technologies Ltd | 0.00% | 32,641 | $2,097,184 | $1,429,023 | -$668,161 | -31.86% | |
| Caprock Group, Llc | 0.04% | 30,909 | $2,009,332 | $1,353,196 | -$656,136 | -32.65% | |
| Ballentine Partners, Llc | 0.02% | 26,847 | $1,724,920 | $1,175,362 | -$549,558 | -31.86% | |
| Rhumbline Advisers | 0.00% | 25,707 | $1,651,671 | $1,125,452 | -$526,219 | -31.86% | |
| Lvw Advisors, Llc | 0.12% | 19,147 | $1,374,181 | $838,256 | -$535,925 | -39.00% | |
| Signaturefd, Llc | 0.02% | 18,890 | $1,355,735 | $827,004 | -$528,731 | -39.00% | |
| Susquehanna International Group, Llp | 0.00% | 20,814 | $1,337,300 | $911,237 | -$426,063 | -31.86% | |
| Jpmorgan Chase & Co | 0.00% | 21,887 | $1,276,012 | $958,213 | -$317,799 | -24.91% | |
| Xtx Topco Ltd | 0.02% | 19,773 | $1,270,415 | $865,662 | -$404,753 | -31.86% | |
| Citadel Advisors Llc | 0.00% | 17,647 | $1,133,820 | $772,586 | -$361,234 | -31.86% | |
| Trexquant Investment Lp | 0.01% | 16,441 | $1,056,334 | $719,787 | -$336,547 | -31.86% | |
| Kathmere Capital Management, Llc | 0.05% | 13,301 | $954,613 | $582,318 | -$372,295 | -39.00% | |
| Lpl Financial Llc | 0.00% | 11,838 | $849,613 | $518,268 | -$331,345 | -39.00% | |
| Bank Of America Corp | 0.00% | 12,777 | $820,922 | $559,377 | -$261,545 | -31.86% | |
| Quadrant Capital Group Llc | 0.02% | 11,221 | $810,605 | $491,255 | -$319,350 | -39.40% | |
| Ritholtz Wealth Management | 0.01% | 9,309 | $668,121 | $407,548 | -$260,573 | -39.00% | |
| Citigroup Inc | 0.00% | 8,893 | $638,251 | $389,336 | -$248,915 | -39.00% | |
| Td Waterhouse Canada Inc. | 0.00% | 8,201 | $593,178 | $359,040 | -$234,138 | -39.47% | |
| Morgan Stanley | 0.00% | 7,970 | $512,075 | $348,927 | -$163,148 | -31.86% | |
| Vident Advisory, Llc | 0.00% | 7,612 | $489,072 | $333,253 | -$155,819 | -31.86% | |
| Parallel Advisors, Llc | 0.01% | 6,535 | $469,034 | $286,102 | -$182,932 | -39.00% | |
| Mariner, Llc | 0.00% | 7,145 | $459,066 | $312,808 | -$146,258 | -31.86% | |
| Bnp Paribas Financial Markets | 0.00% | 6,764 | $434,587 | $296,128 | -$138,459 | -31.86% | |
| Savant Capital, Llc | 0.00% | 5,243 | $376,291 | $229,539 | -$146,752 | -39.00% | |
| Engineers Gate Manager Lp | 0.00% | 5,800 | $372,650 | $253,924 | -$118,726 | -31.86% | |
| Foster Group, Inc. | 0.01% | 5,175 | $371,410 | $226,562 | -$144,849 | -39.00% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | 5,138 | $330,117 | $224,942 | -$105,175 | -31.86% | |
| Quadrature Capital Ltd | 0.00% | 4,776 | $306,858 | $209,093 | -$97,765 | -31.86% | |
| Hrt Financial Lp | 0.00% | 4,763 | $306,000 | $208,524 | -$97,476 | -31.85% | |
| Gamma Investing Llc | 0.01% | 4,100 | $294,257 | $179,498 | -$114,759 | -39.00% | |
| &Partners | 0.00% | 4,519 | $290,346 | $197,842 | -$92,504 | -31.86% | |
| Evergreen Capital Management Llc | 0.00% | 3,747 | $268,923 | $164,044 | -$104,879 | -39.00% | |
| Quantinno Capital Management Lp | 0.00% | 4,184 | $268,822 | $183,176 | -$85,646 | -31.86% | |
| Goldman Sachs Group Inc | 0.00% | 4,160 | $267,280 | $182,125 | -$85,155 | -31.86% | |
| Hsbc Holdings Plc | 0.00% | 4,197 | $266,719 | $183,745 | -$82,974 | -31.11% | |
| Geode Capital Management, Llc | 0.00% | 3,698 | $265,405 | $161,898 | -$103,507 | -39.00% |
Frequently asked questions about IMOS
Who are the largest institutional holders of IMOS?
The largest institutional holders of IMOS reported in the latest SEC Form 13F filings include Renaissance Technologies LLC, Blackrock, Inc., Acadian Asset Management Llc, O'Shaughnessy Asset Management, Llc, and Xy Capital Ltd. InsiderSet ranks institutional holders by their latest reported IMOS position.
What is IMOS institutional ownership?
This page tracks IMOS positions reported by institutional investment managers through SEC Form 13F. CHIPMOS TECHNOLOGIES INC-ADR (IMOS) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own IMOS?
InsiderSet currently tracks 93 institutional managers reporting IMOS holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of IMOS shareholders.
How much IMOS stock do institutions own?
Institutional investment managers disclosed approximately $170.42M in IMOS holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was IMOS institutional ownership last updated?
The latest IMOS institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional IMOS holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its IMOS position after the reporting date.
Are institutions buying or selling IMOS?
Institutional buying and selling can be analyzed by comparing IMOS positions across consecutive 13F reporting periods. InsiderSet's IMOS Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View IMOS ownership changes.
How has IMOS institutional ownership changed over time?
InsiderSet tracks IMOS institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.