Earnings release
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[Type here] 1 000 PR No: C3364C STMicroelectronics Reports 2025 Third Quarter Financial Results • Q3 net revenues $ 3.19 billion; gross margin 33.2%; operating income of $180 million, including $ 37 million related to impairment, restructuring charges and other related phase-out costs; net income of $237 million • Business outlook at mid-point: Q4 net revenues of $3.28 billion and gross margin of 35.0% Geneva, October 23 , 202 5 – STMicroelectronics N.V. (“ST”) (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications, reported U.S. GAAP financial results for the third quarter ended September 27, 2025. This press release also contains non-U.S. GAAP measures (see Appendix for additional information). ST reported third quarter net revenues of $3.19 billion, gross margin of 33.2%, operating income of $180 million, and net income of $237 million or $0.26 diluted earnings per share (non-U.S. GAAP1 operating income of $217 million, and non- U.S. GAAP1 net income of $267 million or $0.29 diluted earnings per share). Jean-Marc Chery, ST President & CEO, commented: • “Q3 net revenues came slightly above the mid-point of our business outlook range , with higher revenues in Personal Electronics, while Automotive and Industrial performed as anticipated, and CECP was broadly in line with expectations. Gross margin was slightly below the mid-point of our business outlook range mainly due to product mix within Automotive and Industrial.” • “On a year-over-year basis, Q3 net revenues decreased 2.0%, non-U.S. GAAP1 operating margin decreased to 6.8% from 11.7% and non-U.S. GAAP1 net income decreased to $267 million from $351 million.” • “In the third quarter, o ur book -to-bill ratio was above one, with Automotive above parity and Industrial at parity.” • “Our fourth quarter business outlook, at the mid -point, is for net revenues of $3.28 billion, increasing sequentially by 2.9%, gross margin is expected to be about 35.0%; including about 290 basis points of unused capacity charges.” • “The mid-point of this outlook translates into full year 2025 revenues of about $11.75 billion. This represents a 22.4% growth in the second half compared to the first half, confirming signs of market recovery. Gross margin is expected to be about 33.8%.” • To optimize our investments in response to the c urrent market conditions, we have reduced our Net Capex plan, now slightly below $2 billion for FY25.” • “Our strategic priorities remain clear : accelerating innovation ; executing our company -wide program to reshape our manufacturing footprint and resize our global cost base, which remains on schedule to deliver the targeted savings; and strengthening free cash flow generation.” Quarterly Financial Summary U.S. GAAP (US$ m, except per share data) Q3 2025 Q2 2025 Q3 2024 Q/Q Y/Y Net Revenues $3,187 $2,766 $3,251 15.2% -2.0% Gross Profit $1,059 $926 $1,228 14.3% -13.7% Gross Margin 33.2% 33.5% 37.8% -30 bps -460 bps Operating Income (Loss) $180 $(133) $381 - -52.9% Operating Margin 5.6% -4.8% 11.7% 1,040 bps -610 bps Net Income (Loss) $237 $(97) $351 - -32.3% Diluted Earnings Per Share $0.26 $(0.11) $0.37 - -29.7% 1 Non-U.S. GAAP. See Appendix for reconciliation to U.S. GAAP and information explaining why the Company believes these measures ar e important. Press release Communiqué de presse Comunicato stampa 新闻稿 / 新聞稿 プレスリリース 보도자료
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2 Non-U.S. GAAP1 (US$ m, except per share data) Q3 2025 Q2 2025 Q3 2024 Q/Q Y/Y Operating Income $217 $57 $381 278.8% -43.2% Operating Margin 6.8% 2.1% 11.7% 470 bps -490 bps Net Income $267 $57 $351 369.1% -23.9% Diluted Earnings Per Share $0.29 $0.06 $0.37 383.3% -21.6% Third Quarter 2025 Summary Review Reminder: on January 1, 2025, we made some adjustments to our segment reporting. Prior year comparative periods have been adjusted accordingly. See Appendix for more detail. Net revenues totaled $3.19 billion, representing a year-over-year decrease of 2.0%. Year-over-year net sales to OEMs and Distribution decreased 5.1% and increased 7.6%, respectively. On a sequential basis, net revenues increased 15.2%, 60 basis points better than the mid-point of ST’s guidance. Gross profit totaled $1.06 billion, representing a year-over-year decrease of 13.7%. Gross margin of 33.2%, 30 basis points below the mid-point of ST’s guidance, decreased 460 basis points year-over-year, mainly due to lower manufacturing efficiencies, negative currency effect, lower level of capacity reservation fees and, to a lesser extent, the combination of sale price and product mix. Operating income decreased from $381 million in the year-ago quarter to $180 million. ST’s operating margin decreased 610 basis points on a year -over-year basis to 5.6% of net revenues, compared to 11.7% in the third quarter of 202 4. Operating income included $37 million impairment, restructuring charges and other related phase-out costs for the quarter, reflecting impairment of assets and restructuring charges predominantly associated with the previously announced company-wide program to reshape our manufacturing footprint and resize our global cost base. Excluding these items, non- U.S. GAAP1 Operating income stood at $217 million in the third quarter. By reportable segment, compared with the year-ago quarter: In Analog, Power & Discrete, MEMS and Sensors (APMS) Product Group: Analog products, MEMS and Sensors (AM&S) segment: • Revenue increased 7.0% mainly due to Imaging. • Operating profit increased by 2.1% to $221 million. Operating margin was 15.4% compared to 16.1%. Power and Discrete products (P&D) segment: • Revenue decreased 34.3%. • Operating profit decreased from $80 million to an operating loss of $67 million. Operating margin was -15.6% compared to 12.2%. 1 Non-U.S. GAAP. See Appendix for reconciliation to U.S. GAAP and information explaining why the Company believes these measures ar e important. 2 See Appendix for the definition of reportable segments. Net Revenues by Reportable Segment2 (US$ m) Q3 2025 Q2 2025 Q3 2024 Q/Q Y/Y Analog products, MEMS and Sensors (AM&S) segment 1,434 1,133 1,340 26.6% 7.0% Power and discrete products (P&D) segment 429 447 652 -4.3% -34.3% Subtotal: Analog, Power & Discrete, MEMS and Sensors (APMS) Product Group 1,863 1,580 1,992 17.9% -6.5% Embedded Processing (EMP) segment 976 847 898 15.3% 8.7% RF & Optical Communications (RF&OC) segment 345 336 357 2.4% -3.4% Subtotal: Microcontrollers, Digital ICs and RF products (MDRF) Product Group 1,321 1,183 1,255 11.6% 5.3% Others 3 3 4 - - Total Net Revenues $3,187 $2,766 $3,251 15.2% -2.0%
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3 In Microcontrollers, Digital ICs and RF products (MDRF) Product Group: Embedded Processing (EMP) segment: • Revenue increased 8.7% mainly due to General Purpose MCU. • Operating profit increased by 9.4% to $161 million. Operating margin was 16.5% compared to 16.4%. RF & Optical Communications (RF&OC) segment: • Revenue decreased 3.4%. • Operating profit decreased by 31.6% to $57 million. Operating margin was 16.6% compared to 23.4%. Net Earnings and diluted Earnings Per Share decreased to $237 million and $0.26 respectively, compared to $351 million and $0.37 respectively in the year-ago quarter. Non-U.S. GAAP1 Net income and diluted Earnings Per Share, stood at $267 million and $0.29 respectively in the third quarter of 2025. Cash Flow and Balance Sheet Highlights Net cash from operating activities was $549 million in the third quarter compared to $723 million in the year-ago quarter. Net Capex (non-U.S. GAAP1), was $401 million in the third quarter compared to $565 million in the year-ago quarter. Free cash flow (non-U.S. GAAP 1) was positive $130 million in the third quarter, compared to positive $136 million in the year-ago quarter. Inventory at the end of the third quarter was $3.17 billion, compared to $3.27 billion in the previous quarter and $2.88 billion in the year-ago quarter. Days sales of inventory at quarter-end was 135 days, compared to 166 days for the previous quarter and 130 days for the year-ago quarter. In the third quarter, ST paid cash dividends to its stockholders totaling $81 million and executed a $91 million share buy- back, as part of its current share repurchase program. ST’s net financial position (non-U.S. GAAP1) remained strong at $2.61 billion as of September 27, 2025, compared to $2.67 billion as of June 28, 2025, and reflected total liquidity2 of $4.78 billion and total financial debt of $2.17 billion. Adjusted net financial position (non-U.S. GAAP1), taking into consideration the effect on total liquidity of advances from capital grants for which capital expenditures have not been incurred yet, stood at $2.27 billion as of September 27, 2025. Corporate developments On July 24, 2025, ST entered into a definitive transaction agreement for the acquisition of NXP’s MEMS sensor business for a purchase price of up to $950 million in cash, including $900 million upfront and $50 million subject to the achievement of technica l milestones. The transaction which will be financed with existing liquidity is subject to customary closing conditions, including regulatory approvals, and is expected to close in H1 2026. Business Outlook ST’s guidance, at the mid-point, for the 2025 fourth quarter is: • Net revenues are expected to be $3.28 billion, an increase of 2.9% sequentially, plus or minus 350 basis points. • Gross margin of 35.0%, plus or minus 200 basis points. • This outlook is based on an assumed effective currency exchange rate of approximately $1.15 = €1.00 for the 2025 fourth quarter and includes the impact of existing hedging contracts. • The fourth quarter will close on December 31, 2025. This business outlook does not include any impact of potential further changes to global trade tariffs compared to the current situation. 1 Non-U.S. GAAP. See Appendix for reconciliation to U.S. GAAP and information explaining why the Company believes these measures ar e important. 2 Total liquidity decreased from $5.63 billion in the second quarter of 2025 to $4.78 billion in the third quarter of 2025, the decrease includes $750 million related to the repayment of the first tranche of our convertible bond. Trailing 12 Months (US$ m) Q3 2025 Q2 2025 Q3 2024 Q3 2025 Q3 2024 TTM Change Net cash from operating activities 549 354 723 2,158 3,764 -42.7% Free cash flow (non-U.S. GAAP1) 130 (152) 136 136 813 -83.3%
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4 Conference Call and Webcast Information ST will conduct a conference call with analysts, investors and reporters to discuss its third quarter 2025 financial results and current business outlook today at 9:30 a.m. Central European Time (CET) / 3:30 a.m. U.S. Eastern Time (ET). A live webcast (listen-only mode) of the conference call will be accessible at ST’s website, https://investors.st.com, and will be available for replay until November 7, 2025. Use of Supplemental Non-U.S. GAAP Financial Information This press release contains supplemental non-U.S. GAAP financial information. Readers are cautioned that these measures are unaudited and not prepared in accordance with U.S. GAAP and should not be considered as a substitute for U.S. GAAP financial measures. In addition, such non-U.S. GAAP financial measures may not be comparable to similarly titled information from other companies. To compensate for these limitations, the supplemental non -U.S. GAAP financial information should not be read in isolation, but only in conjunction with ST’s consolidated financial statements prepared in accordance with U.S. GAAP. See the Appendix of this press release for a reconciliation of ST’s non-U.S. GAAP financial measures to their corresponding U.S. GAAP financial measures. Forward-looking Information Some of the statements contained in this release that are not historical facts are statements of future expectations and other forward-looking statements (within the meaning of Section 27A of the Securities Act of 1933 or Section 21E of the Securities Exchange Act of 1934, each as amended) that are based on management’s current views and assumptions, and are conditioned upon and also involve known and unknown risks and uncertainties that could cause actual results, performance or events to differ materially from those anticipated by such statements due to, among other factors: • changes in global trade policies, including the adoption and expansion of tariffs and trade barriers, that could affect the macro-economic environment and directly or indirectly adversely impact the demand for our products; • uncertain macro-economic and industry trends (such as inflation and fluctuations in supply chains), which may impact production capacity and end-market demand for our products; • customer demand that differs from projections which may require us to undertake transformation measures that may not be successful in realizing the expected benefits in full or at all; • the ability to design, manufacture and sell innovative products in a rapidly changing technological environment; • changes in economic, social, public health, labor, political, or infrastructure conditions in the locations where we, our customers, or our suppliers operate, including as a result of macro-economic or regional events, geopolitical and military conflicts, social unrest, labor actions, or terrorist activities; • unanticipated events or circumstances, which may impact our ability to execute our plans and/or meet the objectives of our R&D and manufacturing programs, which benefit from public funding; • financial difficulties with any of our major distributors or significant curtailment of purchases by key customers; • the loading, product mix, and manufacturing performance of our production facilities and/or our required volume to fulfill capacity reserved with suppliers or third-party manufacturing providers; • availability and costs of equipment, raw materials, utilities, third -party manufacturing services and technology, or other supplies required by our operations (including increasing costs resulting from inflation); • the functionalities and performance of our IT systems, which are subject to cybersecurity threats and which support our critical operational activities including manufacturing, finance and sales, and any breaches of our IT systems or those of our customers, suppliers, partners and providers of third-party licensed technology; • theft, loss, or misuse of personal data about our employees, customers, or other third parties, and breaches of data privacy legislation; • the impact of IP claims by our competitors or other third parties, and our ability to obtain required licenses on reasonable terms and conditions; • changes in our overall tax position as a result of changes in tax rules, new or revised legislation, the outcome of tax audits or changes in international tax treaties which may impact our results of operations as well as our ability to accurately estimate tax credits, benefits, deductions and provisions and to realize deferred tax assets; • variations in the foreign exchange markets and, more particularly, the U.S. dollar exchange rate as compared to the Euro and the other major currencies we use for our operations; • the outcome of ongoing litigation as well as the impact of any new litigation to which we may become a defendant;
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5 • product liability or warranty claims, claims based on epidemic or delivery failure, or other claims relating to our products, or recalls by our customers for products containing our parts; • natural events such as severe weather, earthquakes, tsunamis, volcano eruptions or other acts of nature, the effects of climate change, health risks and epidemics or pandemics in locations where we, our customers or our suppliers operate; • increased regulation and initiatives in our industry, including those concerning climate change and sustainability matters and our goal to become carbon neutral in all direct and indirect emissions (scopes 1 and 2), product transportation, business travel, and employee commuting emissions (our scope 3 focus), and to achieve our 100% renewable electricity sourcing goal by the end of 2027; • epidemics or pandemics, which may negatively impact the global economy in a significant manner for an extended period of time, and could also materially adversely affect our business and operating results; • industry changes resulting from vertical and horizontal consolidation among our suppliers, competitors, and customers; • the ability to successfully ramp up new programs that could be impacted by factors beyond our control, including the availability of critical third-party components and performance of subcontractors in line with our expectations; and • individual customer use of certain products, which may differ from the anticipated uses of such products and result in differences in performance, including energy consumption, may lead to a failure to achieve our disclosed emission - reduction goals, adverse legal action or additional research costs. Such forward -looking statements are subject to various risks and uncertainties, which may cause actual results and performance of our business to differ materially and adversely from the forward-looking statements. Certain forward-looking statements can be identified by the use of forward-looking terminology, such as “believes”, “expects”, “may”, “are expected to”, “should”, “would be”, “seeks” or “anticipates” or similar expressions or the negative thereof or other variations thereo f or comparable terminology, or by discussions of strategy, plans or intentions. Some of these risk factors are set forth and are discussed in more detail in “Item 3. Key Information — Risk Factors” included in our Annual Report on Form 20 -F for the year ended December 31, 202 4 as filed with the Securities and Exchange Commission (“SEC”) on February 2 7, 2025. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in this press release as anticipated, believed or expected. We do not intend, and do not assume any obligation, to update any industry information or forward-looking statements set forth in this release to reflect subsequent events or circumstances. Unfavorable changes in the above or other factors listed under “Item 3. Key Information — Risk Factors” from time to time in our SEC filings, could have a material adverse effect on our business and/or financial condition. About STMicroelectronics At ST, we are 50,000 creators and makers of semiconductor technologies mastering the semiconductor supply chain with state-of-the-art manufacturing facilities. An integrated device manufacturer, we work with more than 200,000 customers and thousands of par tners to design and build products, solutions, and ecosystems that address their challenges and opportunities, and the need to support a more sustainable world. Our technologies enable smarter mobility, more efficient power and energy management, and the w ide-scale deployment of cloud-connected autonomous things. We are on track to be carbon neutral in all direct and indirect emissions (scopes 1 and 2), product transportation, business travel, and employee commuting emissions (our scope 3 focus), and to ach ieve our 100% renewable electricity sourcing goal by the end of 2027. Further information can be found at www.st.com. For further information, please contact: INVESTOR RELATIONS: Jérôme Ramel EVP Corporate Development & Integrated External Communication Tel: +41 22 929 59 20 jerome.ramel@st.com MEDIA RELATIONS: Alexis Breton Corporate External Communications Tel: + 33 6 59 16 79 08 alexis.breton@st.com
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6 STMicroelectronics N.V. CONSOLIDATED STATEMENTS OF INCOME (in millions of U.S. dollars, except per share data ($)) Three months ended September 27, September 28, 2025 2024 (Unaudited) (Unaudited) Net sales 3,183 3,245 Other revenues 4 6 NET REVENUES 3,187 3,251 Cost of sales (2,128) (2,023) GROSS PROFIT 1,059 1,228 Selling, general and administrative expenses (395) (385) Research and development expenses (502) (492) Other income and expenses, net 55 30 Impairment, restructuring charges and other related phase-out costs (37) - Total operating expenses (879) (847) OPERATING INCOME 180 381 Interest income, net 38 55 Other components of pension benefit costs (4) (4) Gain on financial instruments, net 79 - INCOME BEFORE INCOME TAXES AND NONCONTROLLING INTEREST 293 432 Income tax expense (54) (71) NET INCOME 239 361 Net income attributable to noncontrolling interest (2) (10) NET INCOME ATTRIBUTABLE TO PARENT COMPANY STOCKHOLDERS 237 351 EARNINGS PER SHARE (BASIC) ATTRIBUTABLE TO PARENT COMPANY STOCKHOLDERS 0.27 0.39 EARNINGS PER SHARE (DILUTED) ATTRIBUTABLE TO PARENT COMPANY STOCKHOLDERS 0.26 0.37 NUMBER OF WEIGHTED AVERAGE SHARES USED IN CALCULATING DILUTED EPS 918.9 938.6
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7 STMicroelectronics N.V. CONSOLIDATED STATEMENTS OF INCOME (in millions of U.S. dollars, except per share data ($)) Nine months ended September 27, September 28, 2025 2024 (Unaudited) (Unaudited) Net sales 8,440 9,915 Other revenues 30 32 NET REVENUES 8,470 9,947 Cost of sales (5,643) (5,980) GROSS PROFIT 2,827 3,967 Selling, general and administrative expenses (1,205) (1,229) Research and development expenses (1,506) (1,554) Other income and expenses, net 169 123 Impairment, restructuring charges and other related phase-out costs (235) - Total operating expenses (2,777) (2,660) OPERATING INCOME 50 1,307 Interest income, net 131 166 Other components of pension benefit costs (13) (12) Gain (loss) on financial instruments, net 85 (1) INCOME BEFORE INCOME TAXES AND NONCONTROLLING INTEREST 253 1,460 Income tax expense (50) (231) NET INCOME 203 1,229 Net income attributable to noncontrolling interest (7) (13) NET INCOME ATTRIBUTABLE TO PARENT COMPANY STOCKHOLDERS 196 1,216 EARNINGS PER SHARE (BASIC) ATTRIBUTABLE TO PARENT COMPANY STOCKHOLDERS 0.22 1.35 EARNINGS PER SHARE (DILUTED) ATTRIBUTABLE TO PARENT COMPANY STOCKHOLDERS 0.21 1.29 NUMBER OF WEIGHTED AVERAGE SHARES USED IN CALCULATING DILUTED EPS 927.8 940.2
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8 STMicroelectronics N.V. CONSOLIDATED BALANCE SHEETS As at September 27, June 28, December 31, In millions of U.S. dollars 2025 2025 2024 (Unaudited) (Unaudited) (Audited) ASSETS Current assets: Cash and cash equivalents 1,999 1,616 2,282 Short-term deposits 1,450 1,650 1,450 Marketable securities 1,327 2,363 2,452 Trade accounts receivable, net 1,620 1,352 1,749 Inventories 3,167 3,273 2,794 Other current assets 1,268 1,267 1,007 Total current assets 10,831 11,521 11,734 Goodwill 313 313 290 Other intangible assets, net 329 342 346 Property, plant and equipment, net 11,267 11,437 10,877 Non-current deferred tax assets 506 558 464 Long-term investments 156 77 71 Other non-current assets 1,284 1,215 961 13,855 13,942 13,009 Total assets 24,686 25,463 24,743 LIABILITIES AND EQUITY Current liabilities: Short-term debt 256 1,006 990 Trade accounts payable 1,436 1,451 1,323 Other payables and accrued liabilities 1,404 1,386 1,306 Dividends payable to stockholders 176 257 88 Accrued income tax 89 104 66 Total current liabilities 3,361 4,204 3,773 Long-term debt 1,910 1,951 1,963 Post-employment benefit obligations 433 428 377 Long-term deferred tax liabilities 55 48 47 Other long-term liabilities 826 848 904 3,224 3,275 3,291 Total liabilities 6,585 7,479 7,064 Commitment and contingencies Equity Parent company stockholders' equity Common stock (preferred stock: 540,000,000 shares authorized, not issued; common stock: Euro 1.04 par value, 1,200,000,000 shares authorized, 911,281,920 shares issued, 892,328,291 shares outstanding as of September 27, 2025) 1,157 1,157 1,157 Additional Paid-in Capital 3,232 3,187 3,088 Retained earnings 13,114 12,911 13,459 Accumulated other comprehensive income 906 983 236 Treasury stock (546) (490) (491) Total parent company stockholders' equity 17,863 17,748 17,449 Noncontrolling interest 238 236 230 Total equity 18,101 17,984 17,679 Total liabilities and equity 24,686 25,463 24,743
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9 STMicroelectronics N.V. SELECTED CONSOLIDATED CASH FLOW DATA Cash Flow Data (in US$ millions) Q3 2025 Q2 2025 Q3 2024 Net Cash from operating activities 549 354 723 Net Cash from (used in) investing activities 815 (332) (601) Net Cash used in financing activities (980) (191) (142) Net Cash increase (decrease) 383 (165) (15) Selected Cash Flow Data (in US$ millions) Q3 2025 Q2 2025 Q3 2024 Depreciation & amortization 482 464 440 Net payment for Capital expenditures (417) (481) (601) Dividends paid to stockholders (81) (81) (80) Change in inventories, net 98 (140) (17)
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10 Appendix ST Changes to reportable segments Following ST’s reorganization announced in January 2024 into two Product Groups and four reportable segments, we have made further progress in analyzing our global product portfolio, resulting in the following adjustments to our segments, effective starting January 1, 2025, without modifying subtotals at Product Group level: • In Analog, Power & Discrete, MEMS and Sensors (APMS) Product Group: o The transfer of VIPower products from Power and Discrete products (P&D) reportable segment to Analog products, MEMS and Sensors (AM&S) reportable segment. • In Microcontrollers, Digital ICs and RF products (MDRF) Product Group: o the newly created ‘Embedded Processing’ (E MP) reportable segment includes the former ‘MCU’ segment (excluding the RF ASICs mentioned below) as well as Custom Processing products (Automotive ADAS products). o the newly created ‘RF & Optical Communications’ (RF&OC) reportable segment includes the former ‘D&RF’ segment (excluding Automotive ADAS products) as well as some RF ASICs which were previously part of the former ‘MCU’ segment. We believe these adjustments are critical for implementing synergies and optimizing resources, which are necessary to fully deliver the benefits expected from our new organization. Our four reportable segments - within each Product Group - are now as follows: • In Analog, Power & Discrete, MEMS and Sensors (APMS) Product Group: o Analog products, MEMS and Sensors (AM&S) reportable segment, comprised of ST analog products (now including VIPower products), MEMS sensors and actuators, and optical sensing solutions. o Power and Discrete products (P&D) reportable segment, comprised of discrete and power transistor products (now excluding VIPower products). In this Press Release, “Analog” refers to analog products, “MEMS” to MEMS sensors and actuators and “Imaging” to optical sensing solutions. • In Microcontrollers, Digital ICs and RF products (MDRF) Product Group: o Embedded Processing (E MP) reportable segment, comprised of general -purpose and automotive microcontrollers, connected security products and Custom Processing Products (Automotive ADAS) o RF & Optical Communications (RF&OC) reportable segment, comprised of Space, Ranging & Connectivity products, Digital Audio & Signaling Solutions and Optical & RF COT. In this Press release, “GPAM” refers to General purpose & automotive microcontrollers, “Connected Security” to connected security products, “Custom Processing” to automotive ADAS products. Prior year comparative periods have been adjusted accordingly.
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11 (Appendix – continued) ST Supplemental Financial Information Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Net Revenues By Market Channel (%) Total OEM 73% 72% 71% 73% 76% Distribution 27% 28% 29% 27% 24% €/$ Effective Rate 1.14 1.09 1.06 1.09 1.08 Reportable Segment Data (US$ m) Analog products, MEMS and Sensors (AM&S) segment - Net Revenues 1,434 1,133 1,069 1,348 1,340 - Operating Income 221 85 82 220 216 Power and Discrete products (P&D) segment - Net Revenues 429 447 397 602 652 - Operating Income (Loss) (67) (56) (28) 45 80 Subtotal: Analog, Power & Discrete, MEMS and Sensors (APMS) Product Group - Net Revenues 1,863 1,580 1,466 1,950 1,992 - Operating Income 154 29 54 265 296 Embedded Processing (EMP) segment - Net Revenues 976 847 742 1,002 898 - Operating Income 161 114 66 181 146 RF & Optical Communications (RF&OC) segment - Net Revenues 345 336 306 366 357 - Operating Income 57 60 43 95 84 Subtotal: Microcontrollers, Digital ICs and RF products (MDRF) Product Group - Net Revenues 1,321 1,183 1,048 1,368 1,255 - Operating Income 218 174 109 276 230 Others (a) - Net Revenues 3 3 3 3 4 - Operating Income (Loss) (192) (336) (160) (172) (145) Total - Net Revenues 3,187 2,766 2,517 3,321 3,251 - Operating Income (Loss) 180 (133) 3 369 381 (a) Net revenues of Others include revenues from sales assembly services and other revenues. Operating income (loss) of Others in clude items such as unused capacity charges, including incidents leading to power outage, impairment, restructuring charges and other related phase-out costs, management reorganization costs, start-up costs, and other unallocated income (expenses) such as: strategic or special research and development programs, certain corporate-level operating expenses, patent claims and litigations, and other costs that are not allocated to reportable segments, as well as operating earnings of other products. Others includes: (US$ m) Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Unused capacity charges 102 103 123 118 104 Impairment, restructuring charges and other related phase-out costs 37 190 8 - -
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12 (Appendix – continued) ST Supplemental Non-U.S. GAAP Financial Information U.S. GAAP – Non-U.S. GAAP Reconciliation The supplemental non -U.S. GAAP information presented in this press release is unaudited and subject to inherent limitations. Such non-U.S. GAAP information is not based on any comprehensive set of accounting rules or principles and should not be considered as a substitute for U.S. GAAP measurements. Also, our supplemental non -U.S. GAAP financial information may not be comparable to similarly titled non-U.S. GAAP measures used by other companies. Further, specific limitations for individual non -U.S. GAAP measures, and the reasons for presenting non -U.S. GAAP financial information, are set forth in the paragraphs below. To compensate for these limitations, the supplemental non -U.S. GAAP financial information should not be read in isolation, but only in conjunc tion with our consolidated financial statements prepared in accordance with U.S. GAAP. ST believes that these non -U.S. GAAP financial measures provide useful information for investors and management because they offer, when read in conjunction with ST’s U.S. GAAP financials, (i) the ability to make more meaningful period- to-period comparisons of ST’s on-going operating results, (ii) the ability to better identify trends in ST’s business and perform related trend analysis, and (iii) to facilitate a comparison of ST’s results of operations against investor and analyst financial models and valuations, which may exclude these items. Non-U.S. GAAP Operating Income, Non-U.S. GAAP Net Income and Non-U.S. GAAP Earnings Per Share (non-U.S. GAAP measures) Operating income before impairment and restructuring charges and one-time items is used by management to help enhance an understanding of ongoing operations and to communicate the impact of the excluded items, such as impairment, restructuring charges and other related phase-out costs. Adjusted net earnings and earnings per share (EPS) are used by management to help enhance an understanding of ongoing operations and to communicate the impact of the excluded items like impairment, restructuring charges and other related phase-out costs attributable to ST and other one-time items, net of the relevant tax impact. Q3 2025 (US$ m, except per share data) Gross Profit Operating Income Net Income Corresponding Diluted EPS U.S. GAAP 1,059 180 237 0.26 Impairment, restructuring charges and other related phase-out costs - 37 37 Estimated income tax effect - - (7) Non-U.S. GAAP 1,059 217 267 0.29 YTD 2025 (US$ m, except per share data) Gross Profit Operating Income Net Income Corresponding Diluted EPS U.S. GAAP 2,827 50 196 0.21 Impairment, restructuring charges and other related phase-out costs - 235 235 Estimated income tax effect - - (45) Non-U.S. GAAP 2,827 285 386 0.42
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13 (Appendix – continued) Net Financial Position and Adjusted Net Financial Position (non-U.S. GAAP measures) Net Financial Position, a non -U.S. GAAP measure, represents the difference between our total liquidity and our total financial debt. Our total liquidity includes cash and cash equivalents, restricted cash, if any, short -term deposits, and marketable securi ties, and our total financial debt includes short -term debt and long -term debt, as reported in our Consolidated Balance Sheets. ST also presents adjusted net financial position as a non-U.S. GAAP measure, to take into consideration the effect on total liquidity of advances received on capital grants for which capital expenditures have not been incurred yet. ST believes its Net Financial Position and Adjusted Net Financial Position provide useful information for investors and management because they give evidence of our global position either in terms of net indebtedness or net cash by measuring our capital resources based on cash and cash equivalents, restricted cash, if any, short -term deposits and marketable securities and the total level of our f inancial debt. Our definition s of Net Financial Position and Adjusted Net Financial Position may differ from definitions used by other companies, and therefore, comparability may be limited. (a) Long-term debt contains standard conditions but does not impose minimum financial ratios. Committed credit facilities for $638 million equivalent, are currently undrawn. (US$ m) Sep 27 2025 Jun 28 2025 Mar 29 2025 Dec 31 2024 Sep 28 2024 Cash and cash equivalents 1,999 1,616 1,781 2,282 3,077 Short term deposits 1,450 1,650 1,650 1,450 977 Marketable securities 1,327 2,363 2,528 2,452 2,242 Total liquidity 4,776 5,629 5,959 6,184 6,296 Short-term debt (256) (1,006) (988) (990) (1,003) Long-term debt (a) (1,910) (1,951) (1,889) (1,963) (2,112) Total financial debt (2,166) (2,957) (2,877) (2,953) (3,115) Net Financial Position (non-U.S. GAAP) 2,610 2,672 3,082 3,231 3,181 Advances received on capital grants (345) (361) (377) (385) (366) Adjusted Net Financial Position (non-U.S. GAAP) 2,265 2,311 2,705 2,846 2,815
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14 (Appendix – continued) Net Capex and Free Cash Flow (non-U.S. GAAP measures) ST presents Net Capex as a non-U.S. GAAP measure, which is reported as part of our Free Cash Flow (non -U.S. GAAP measure), to take into consideration the effect of advances from capital grants received on prior periods allocated to property, plant and equipment in the reporting period. Net Capex, a non-U.S. GAAP measure, is defined as (i) Payment for purchase of tangible assets , as reported plus (ii) Proceeds from sale of tangible assets, as reported plus (iii) Proceeds from capital grants and other contributions, as reported plus (iv) Advances from capital grants allocated to property, plant and equipment in the reporting period. ST believes Net Capex provides useful information for investors and management because annual capital expenditures budget includes the effect of capital grants. Our definition of Net Capex may differ from definitions used by other companies. Free Cash Flow, which is a non-U.S. GAAP measure, is defined as (i) net cash from operating activities plus (ii) Net Capex plus (iii) payment for purchase (and proceeds from sale) of intangible and financial assets and (iv) net cash paid for business acquisitions, if any. ST believes Free Cash Flow provides useful information for investors and management because it measures our capacity to generate cash from our operating and investing activities to sustain our operations. Free Cash Flow reconciles with the total cash flow and the net cash increase (decrease) by including the payment for purchases of (and proceeds from matured) marketable securities and net investment in (and proceeds from) short -term deposits, the net cash from (used in) financing activities and the effect of changes in exchange rates, and by excluding the advances from capital grants received on prior periods allocated to property, plant and equipment in the reporting period . Our definition of Free Cash Flow may differ from definitions used by other companies. (US$ m) Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Payment for purchase of tangible assets, as reported (431) (574) (587) (584) (669) Proceeds from sale of tangible assets, as reported 3 4 2 - 2 Proceeds from capital grants and other contributions, as reported 11 89 47 83 66 Advances from capital grants allocated to property, plant and equipment 16 16 8 31 36 Net Capex (non-U.S. GAAP) (401) (465) (530) (470) (565) (US$ m) Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Net cash from operating activities 549 354 574 681 723 Net Capex (401) (465) (530) (470) (565) Payment for purchase of intangible assets, net of proceeds from sale (18) (41) (14) (32) (20) Payment for purchase of financial assets, net of proceeds from sale - - - (51) (2) Free Cash Flow (non-U.S. GAAP) 130 (152) 30 128 136