CHIPMOS TECHNOLOGIES INC-ADR (IMOS) Institutional Shareholders
CHIPMOS TECHNOLOGIES INC-ADR (IMOS) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $173.38M in IMOS holdings during the latest filing period.
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 $77.10M, representing an estimated gain of +8.51% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 81% 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
88
Total Reported Value
$173.38M
Largest Holder
Renaissance Technologies LLC
Largest Position
$71.05M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
102
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 | $77,102,651 | +$6,049,218 | +8.51% |
| Blackrock, Inc. | 0.00% | 255,464 | $16,413,562 | $17,810,950 | +$1,397,388 | +8.51% | |
| Acadian Asset Management Llc | 0.02% | 197,066 | $12,648,000 | $13,739,442 | +$1,091,442 | +8.63% | |
| O'Shaughnessy Asset Management, Llc | 0.05% | 172,425 | $11,078,306 | $12,021,471 | +$943,165 | +8.51% | |
| Xy Capital Ltd | 9.62% | 130,326 | $8,373,446 | $9,086,329 | +$712,883 | +8.51% | |
| Dimensional Fund Advisors Lp | 0.00% | 88,685 | $5,694,994 | $6,183,118 | +$488,124 | +8.57% | |
| Vanguard Personalized Indexing Management, Llc | 0.04% | 72,464 | $4,655,812 | $5,052,190 | +$396,378 | +8.51% | |
| Envestnet Asset Management Inc | 0.00% | 53,138 | $3,414,111 | $3,704,781 | +$290,670 | +8.51% | |
| Jane Street Group, Llc | 0.00% | 52,853 | $3,395,805 | $3,684,911 | +$289,106 | +8.51% | |
| Two Sigma Investments, Lp | 0.00% | 50,810 | $3,264,543 | $3,542,473 | +$277,930 | +8.51% | |
| Marshall Wace, Llp | 0.00% | 34,423 | $2,211,677 | $2,399,972 | +$188,295 | +8.51% | |
| Renaissance Group Llc | 0.09% | 34,140 | $2,193,495 | $2,380,241 | +$186,746 | +8.51% | |
| Qube Research & Technologies Ltd | 0.00% | 32,641 | $2,097,184 | $2,275,731 | +$178,547 | +8.51% | |
| Caprock Group, Llc | 0.04% | 30,909 | $2,009,332 | $2,154,975 | +$145,643 | +7.25% | |
| Ballentine Partners, Llc | 0.02% | 26,847 | $1,724,920 | $1,871,773 | +$146,853 | +8.51% | |
| Rhumbline Advisers | 0.00% | 25,707 | $1,651,671 | $1,792,292 | +$140,621 | +8.51% | |
| Susquehanna International Group, Llp | 0.00% | 20,814 | $1,337,300 | $1,451,152 | +$113,852 | +8.51% | |
| Signaturefd, Llc | 0.02% | 20,711 | $1,330,682 | $1,443,971 | +$113,289 | +8.51% | |
| Jpmorgan Chase & Co | 0.00% | 21,887 | $1,276,012 | $1,525,962 | +$249,950 | +19.59% | |
| Xtx Topco Ltd | 0.02% | 19,773 | $1,270,415 | $1,378,574 | +$108,159 | +8.51% | |
| Lvw Advisors, Llc | 0.10% | 18,898 | $1,214,197 | $1,317,569 | +$103,372 | +8.51% | |
| Citadel Advisors Llc | 0.00% | 17,647 | $1,133,820 | $1,230,349 | +$96,529 | +8.51% | |
| Trexquant Investment Lp | 0.01% | 16,441 | $1,056,334 | $1,146,267 | +$89,933 | +8.51% | |
| Kathmere Capital Management, Llc | 0.05% | 13,395 | $860,629 | $933,899 | +$73,270 | +8.51% | |
| Bank Of America Corp | 0.00% | 12,777 | $820,922 | $890,812 | +$69,890 | +8.51% | |
| Lpl Financial Llc | 0.00% | 12,747 | $818,995 | $888,721 | +$69,726 | +8.51% | |
| Quadrant Capital Group Llc | 0.02% | 12,071 | $775,562 | $841,590 | +$66,028 | +8.51% | |
| Ritholtz Wealth Management | 0.01% | 8,949 | $574,977 | $623,924 | +$48,947 | +8.51% | |
| Td Waterhouse Canada Inc. | 0.00% | 7,977 | $516,989 | $556,156 | +$39,167 | +7.58% | |
| Morgan Stanley | 0.00% | 7,970 | $512,075 | $555,668 | +$43,593 | +8.51% | |
| Vident Advisory, Llc | 0.00% | 7,612 | $489,072 | $530,709 | +$41,637 | +8.51% | |
| Mariner, Llc | 0.00% | 7,145 | $459,066 | $498,149 | +$39,083 | +8.51% | |
| Bnp Paribas Financial Markets | 0.00% | 6,764 | $434,587 | $471,586 | +$36,999 | +8.51% | |
| Parallel Advisors, Llc | 0.01% | 6,544 | $420,452 | $456,248 | +$35,796 | +8.51% | |
| Engineers Gate Manager Lp | 0.00% | 5,800 | $372,650 | $404,376 | +$31,726 | +8.51% | |
| Delphi Management Inc | 0.36% | 5,715 | $367,000 | $398,450 | +$31,450 | +8.57% | |
| Lsv Asset Management | 0.00% | 5,600 | $360,000 | $390,432 | +$30,432 | +8.45% | |
| Foster Group, Inc. | 0.01% | 5,269 | $338,533 | $367,355 | +$28,822 | +8.51% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | 5,138 | $330,117 | $358,221 | +$28,104 | +8.51% | |
| Quadrature Capital Ltd | 0.00% | 4,776 | $306,858 | $332,983 | +$26,125 | +8.51% | |
| Hrt Financial Lp | 0.00% | 4,763 | $306,000 | $332,076 | +$26,076 | +8.52% | |
| &Partners | 0.00% | 4,519 | $290,346 | $315,065 | +$24,719 | +8.51% | |
| Quantinno Capital Management Lp | 0.00% | 4,184 | $268,822 | $291,708 | +$22,886 | +8.51% | |
| Goldman Sachs Group Inc | 0.00% | 4,160 | $267,280 | $290,035 | +$22,755 | +8.51% | |
| Hsbc Holdings Plc | 0.00% | 4,197 | $266,719 | $292,615 | +$25,896 | +9.71% | |
| Arax Advisory Partners | 0.00% | 4,082 | $262,268 | $284,597 | +$22,329 | +8.51% | |
| Geode Capital Management, Llc | 0.00% | 3,698 | $237,596 | $257,825 | +$20,229 | +8.51% | |
| Evergreen Capital Management Llc | 0.00% | 3,617 | $235,223 | $252,177 | +$16,954 | +7.21% | |
| Squarepoint Ops Llc | 0.00% | 3,655 | $234,834 | $254,827 | +$19,993 | +8.51% | |
| Gamma Investing Llc | 0.01% | 3,363 | $216,073 | $234,468 | +$18,395 | +8.51% |
Frequently asked questions about IMOS
Who owns the most IMOS stock?
The largest holders of IMOS are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CHIPMOS TECHNOLOGIES INC-ADR (IMOS).
Is IMOS widely held by superinvestors?
Many widely followed stocks like IMOS appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly IMOS is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.