Sign in

IMOS on Nasdaq

CHIPMOS TECHNOLOGIES INC

Leading independent providers of semiconductor assembly and testing services1

In its 2026 annual report (Form 20-F) the company says: “We are a company limited by shares, incorporated on July 28, 1997, under the ROC Company Act, under the name “ChipMOS TECHNOLOGIES INC.”3 Its shares trade on Nasdaq under the symbol IMOS.1

Price unavailable

Last updated Oct 21, 2026.

Overview

Compare with Alpha & Omega Semiconductor, Rambus or DAQO, or pick any stock.

  • TickerIMOS on Nasdaq1
  • IndustrySemiconductors & Related Devices1
  • HeadquartersF51
  • Incorporated inTaiwan2
  • Business addressNo. 1, R & D Road 1, Hsinchu Science Park, Hsinchu, Taiwan, F5 000002
  • Filer categoryLarge accelerated filer2

See how the biggest companies compare on our leaderboards

We are one of the leading independent providers of semiconductor assembly and testing services. Specifically, we are one of the leading independent providers of testing and assembly services for LCD, OLED, automotive panel and other display panel driver semiconductors and advanced memory and logic/mixed-signal products in Taiwan. The depth of our engineering expertise and the breadth of our assembly and testing technologies enable us to provide our customers with advanced and comprehensive assembly and testing services. In addition, our geographic presence in Taiwan is attractive to customers wishing to take advantage of the logistical and cost efficiencies stemming from our close proximity to foundries and producers of consumer electronic products in Taiwan. Our production facilities are located in Hsinchu and Tainan, Taiwan.3 From its latest annual report

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2024

13.0%Gross margin4
5.6%Operating margin4
6.3%Net margin4
-0.8%Revenue growth, 20244
5.8%Return on equity4
0.42×Debt to equity4
$26.2MFree cash flow4

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Business segments

Assembly brought in 14% of the revenue CHIPMOS TECHNOLOGIES INC broke down this way in fiscal 2025.

  1. Assembly6.8B TWD514%up 27% from 2024
  2. Assembly Segment [member]6.8B TWD514%up 27% from 2024
  3. LCDD Segment [member]5.9B TWD512%down 20% from 2024
  4. LCDD5.9B TWD512%down 20% from 2024
  5. Testing5.7B TWD512%up 14% from 2024
  6. Testing Segment [member]5.7B TWD512%up 14% from 2024
  7. Bumping5.6B TWD512%up 11% from 2024
  8. Bumping Segment [member]5.6B TWD512%up 11% from 2024
  9. All other segments [member]58.0M TWD50%down 4% from 2024
Business segments by year
Business segments202320242025
Assembly4.6B TWD5.4B TWD6.8B TWD
Assembly Segment [member]4.6B TWD5.4B TWD6.8B TWD
LCDD Segment [member]7.8B TWD7.3B TWD5.9B TWD
LCDD7.8B TWD7.3B TWD5.9B TWD
Testing4.4B TWD5.0B TWD5.7B TWD
Testing Segment [member]4.4B TWD5.0B TWD5.7B TWD
Bumping4.5B TWD5.0B TWD5.6B TWD
Bumping Segment [member]4.5B TWD5.0B TWD5.6B TWD
All other segments [member]59.5M TWD60.1M TWD58.0M TWD

Regions

TWMember brought in 87% of the revenue CHIPMOS TECHNOLOGIES INC broke down this way in fiscal 2025.

  1. TWMember20.8B TWD587%up 15% from 2024
  2. China1.4B TWD56%down 15% from 2024
  3. Japan1.2B TWD55%down 9% from 2024
  4. Other Countries490.7M TWD52%down 18% from 2024
Regions by year
Regions202320242025
TWMember17.3B TWD18.1B TWD20.8B TWD
China1.7B TWD1.7B TWD1.4B TWD
Japan1.2B TWD1.4B TWD1.2B TWD
Other Countries486.5M TWD599.6M TWD490.7M TWD

Where the money goes

Where each dollar of revenue went, fiscal 2024

  • Cost of revenue86¢$602.4M
  • Research and development5¢$35.5M
  • Interest1¢$8.5M
  • Income tax1¢$6.3M
  • Profit6¢$43.9M

Out of $692.2M in revenue.4

Where each dollar of operating cash went, fiscal 2024

  • Capital spending80¢$155.0M
  • Dividends paid20¢$39.9M

Out of $181.2M of cash from operations. Spending exceeded cash from operations; the rest came from savings or borrowing.4

Financial statements

Revenue678910114$692.2M in 2024+15% since 2018
0$250.0M$500.0M$750.0M$1.0B2018: $603.7M$603.7M20182019: $680.0M$680.0M2019+13%2020: $819.5M$819.5M2020+21%2021: $987.7M$987.7M2021+21%2022: $765.3M$765.3M2022−23%2023: $697.5M$697.5M2023−9%2024: $692.2M$692.2M2024−1%
Gross profit678910114$89.8M in 2024−20% since 2018
0$100.0M$200.0M$300.0M2018: $112.1M$112.1M20182019: $131.3M$131.3M2019+17%2020: $179.2M$179.2M2020+37%2021: $261.5M$261.5M2021+46%2022: $159.8M$159.8M2022−39%2023: $115.9M$115.9M2023−27%2024: $89.8M$89.8M2024−23%
Operating income678910114$38.9M in 2024−43% since 2018
0$100.0M$200.0M$300.0M2018: $68.6M$68.6M20182019: $82.2M$82.2M2019+20%2020: $127.0M$127.0M2020+55%2021: $200.5M$200.5M2021+58%2022: $104.7M$104.7M2022−48%2023: $62.3M$62.3M2023−40%2024: $38.9M$38.9M2024−38%
Net income678910114$43.9M in 2024+1% since 2018
0$50.0M$100.0M$150.0M$200.0M2018: $43.3M$43.3M20182019: $83.9M$83.9M2019+94%2020: $84.7M$84.7M2020+1%2021: $178.0M$178.0M2021+110%2022: $111.9M$111.9M2022−37%2023: $64.3M$64.3M2023−43%2024: $43.9M$43.9M2024−32%

Every line of the income statement as filed: the last 3 fiscal years, latest first.5

Period ending2025-12-312024-12-312023-12-31
Revenue23.9B TWD22.7B TWD21.4B TWD
Cost of revenue-21.3B TWD-19.8B TWD-17.8B TWD
Gross profit2.6B TWD2.9B TWD3.5B TWD
Sales and marketing expenses-119.8M TWD-128.7M TWD-135.7M TWD
General and administrative expenses-491.7M TWD-478.6M TWD-497.7M TWD
Research and development expenses-1.1B TWD-1.2B TWD-1.1B TWD
Other income (expenses), net238.8M TWD99.9M TWD85.9M TWD
Operating profit1.1B TWD1.3B TWD1.9B TWD
Interest income243.3M TWD197.7M TWD193.2M TWD
Other income76.1M TWD58.1M TWD77.6M TWD
Other gains and losses-427.2M TWD393.6M TWD135.5M TWD
Finance costs-301.3M TWD-278.9M TWD-266.4M TWD
Share of profit (loss) of associates and joint ventures accounted for using equity method-142.9M TWD2.7M TWD219.9M TWD
Profit before income tax590.7M TWD1.6B TWD2.3B TWD
Income tax expense-40.1M TWD-207.5M TWD-300.7M TWD
Profit for the year550.6M TWD1.4B TWD2.0B TWD
Profit on remeasurements of defined benefit plans62.8M TWD56.3M TWD10.7M TWD
Unrealized (loss) gain on valuation of equity instruments at fair value through other comprehensive income32.2M TWD-17.3M TWD-217.8M TWD
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss22.1M TWD17.0M TWD13.0M TWD
Income tax effect on components that will not be reclassified to profit or loss-21.4M TWD-7.8M TWD49.5M TWD
Components of other comprehensive (loss) income that will not be reclassified to profit or loss95.7M TWD48.2M TWD-144.6M TWD
Exchange differences on translation of foreign operations-11.7M TWD18.3M TWD16.7M TWD
Equity directly related to non-current assets held for sale43.1M TWD-43.1M TWD
Components of other comprehensive (loss) income that will be reclassified to profit or loss-11.7M TWD61.4M TWD-26.4M TWD
Other comprehensive (loss) income, net of income tax83.9M TWD109.6M TWD-171.0M TWD
Total comprehensive income for the year634.6M TWD1.5B TWD1.8B TWD

Compare CHIPMOS TECHNOLOGIES INC with another company

What it owns

What CHIPMOS TECHNOLOGIES INC reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, net$609.8M4 Dec 31, 2024$625.1M11 Dec 31, 2023−2.4%
Operating-lease assets (leased space)$31.3M4 Dec 31, 2024$33.9M11 Dec 31, 2023−7.6%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$464.1M4 Dec 31, 2024$403.5M11 Dec 31, 2023+15.0%

Inventory

ItemLatestA year beforeChange
Inventory, total$82.2M4 Dec 31, 2024$83.9M11 Dec 31, 2023−2.0%

Leadership

Who has led CHIPMOS TECHNOLOGIES INC, and when. Pick a name to see everywhere that person has worked.

President

  1. Shih Jye Cheng2026–now
Board members and other officers (9)

Calendar

Coming up

  1. Nov 10, 2026Reports results for the quarter ending Sep/202621

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

248 filings to the SEC since October 2021: 5 annual reports, 11 insider forms, 232 other. The latest 20:

  1. Oct 8, 20266-K EDGAR
  2. Sep 29, 20266-K EDGAR
  3. Sep 10, 20266-K EDGAR
  4. Sep 10, 20266-K EDGAR
  5. Aug 11, 20266-K EDGAR
  6. Aug 11, 20266-K EDGAR
  7. Aug 10, 20266-K EDGAR
  8. Aug 3, 20266-K EDGAR
  9. Jul 30, 20266-K EDGAR
  10. Jul 23, 20266-K EDGAR
  11. Jul 20, 20266-K EDGAR
  12. Jul 10, 20266-K EDGAR
  13. Jun 23, 20266-K EDGAR
  14. Jun 10, 20266-K EDGAR
  15. May 27, 20266-K EDGAR
  16. May 26, 20266-K EDGAR
  17. May 26, 20266-K EDGAR
  18. May 21, 2026SD EDGAR
  19. May 20, 20266-K EDGAR
  20. May 12, 20266-K EDGAR

The 248 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 89. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
Renaissance Technologies LLC1,105,890$71.1M0.1%−12,100
BlackRock, Inc.255,464$16.4M0.0%+1,138
O'shaughnessy Asset Management, LLC172,425$11.1M0.1%+92,702
XY Capital Ltd130,326$8.4M9.6%New
Dimensional Fund Advisors LP88,685$5.7M0.0%−3,569
Vanguard Personalized Indexing Management, LLC72,464$4.7M0.0%+3,754
Envestnet Asset Management Inc53,138$3.4M0.0%−1,601
Jane Street Group, LLC52,853$3.4M0.0%+43,740
Two Sigma Investments, LP50,810$3.3M0.0%+20,589
Creative Planning49,378$3.2M0.0%+4,549
Marshall Wace, Llp34,423$2.2M0.0%+1,820
Renaissance Group LLC34,140$2.2M0.1%−1,040
Qube Research & Technologies Ltd32,641$2.1M0.0%New
Caprock Group, LLC30,909$2.0M0.0%+14,512
Ballentine Partners, LLC26,847$1.7M0.0%+3,971
Rhumbline Advisers25,707$1.7M0.0%+1,314
Susquehanna International Group, Llp20,814$1.3M0.0%New
Signaturefd, LLC20,711$1.3M0.0%−186
Jpmorgan Chase & Co21,887$1.3M0.0%+21,807
XTX Topco Ltd19,773$1.3M0.0%+11,107
LVW Advisors, LLC18,898$1.2M0.1%+9,410
Citadel Advisors LLC17,647$1.1M0.0%−7,215
Trexquant Investment LP16,441$1.1M0.0%+8,975
Kathmere Capital Management, LLC13,395$860.6K0.0%+7,705
Bank Of America Corp /de/12,777$820.9K0.0%−145

13F reports cover disclosed long positions in U.S. stocks only.

SEC filer profile

How CHIPMOS TECHNOLOGIES INC is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARCHIPMOS TECHNOLOGIES INC1
  • CIK0001123134
  • Filer statusLarge accelerated filer not an emerging growth company; not a shell company3
  • Incorporated inF53
  • Fiscal year endsDecember 311
  • Industry code (SIC)3674 Semiconductors & Related Devices1
  • SEC reviewing officeOffice of Manufacturing, Division of Corporation Finance1
  • Business addressNo. 1, R & D Road 1, Hsinchu Science Park, Hsinchu, Taiwan, F5 000001
  • Phone866-3-57700551
  • Shares outstanding699,983,126 shares as of Dec 31, 20253
  • AuditorPricewaterhouseCoopers, Taiwan, Taipei, Taiwan PCAOB ID 1345; it also attests to the company’s internal control over financial reporting3
  • On EDGAR sinceApr 16, 20071
  • Filings524 in all: 6-K (440), 425 (16), 3 (11), 20-F (10), SD (10), CORRESP (6), CB (5), F-X (5)1
    All 20 form types

    UPLOAD (4), F-4/A (3), 6-K/A (2), EFFECT (2), SC 13G (2), SC 13G/A (2), 424B3 (1), 8-A12B (1), CERTNAS (1), F-4 (1), F-6 (1), F-6/A (1)

  • Latest filingsAnnual report (20-F) Apr 14, 2026

Securities registered for trading

ClassSymbolExchange
Common Shares, par value NT$10 per shareNASDAQ
American Depositary SharesIMOSNASDAQ

From the cover page of the 20-F filed Apr 14, 2026 (Section 12(b) of the Exchange Act).3

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21