RT — Interim / Quarterly Report 2025

Jan 28, 2026

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2025年第四季法人說明會資訊

－ 開會日期： 115年01月28日(三) 開會時間：3:00PM 4:00PM

語言: 英文

開會地點： 網路直播

參加人員： 國內外法人、記者

會議主席： 發言人 黃依瑋副總

主要內容：2025年第四季法人說明會資訊

(1) 說明2025年第四季損益表主要數字(自結數)

瑞昱半導體2025年第四季損益表主要資訊如下，詳細資料將以公司正式對外公告財報為準： 營業收入：約新台幣262.8億元，較上季下降約10.9%。

營業毛利率：48.1%

稅後淨利：約新台幣26.5億元

以加權平均流通在外股數計算，每股盈餘為新台幣5.17元。

(2) 說明2025年全年損益表主要數字(自結數)

瑞昱半導體2025年全年損益表主要資訊如下，詳細資料將以公司正式對外公告財報為準： 營業收入：約新台幣1,227.1億元，較2024年成長約8.2%。

營業毛利率：50.0%

稅後淨利：約新台幣147.5億元

以加權平均流通在外股數計算，每股盈餘為新台幣28.77元。

一 (3) 2026年第 季營運展望

展望第一季，在客戶庫存回補及記憶體漲價預期的備貨效應下，瑞昱對短期營運持審慎正向態

度，並將持續密切關注外部環境與各終端市場的變化。

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2025 Q4 Earnings Release and Marketing/Sales Update

Date: Wednesday, January 28, 2026 Time: 3:00 PM – 4:00 PM Language: English Place: Web conference Audience: Domestic as well as international institutional investors and reporters Subject: 2025 Q4 Earnings Release and Marketing/Sales Update

Statement:

(1) 2025 Q4 Financial Results (unaudited)

Net Sales: about NT$26.28 billion, down 10.9% QoQ. Gross Margin: 48.1% Net Income: about NT$2.65 billion EPS: NT$5.17

(2) 2025 Full Year Financial Results (unaudited)

Sales Revenue: about NT$122.71 billion, up 8.2% YoY. Gross Margin: 50.0% Net Income: about NT$14.75 billion EPS: NT$28.77

(3) 2026 Q1 Company Guidance

Looking ahead to the first quarter, Realtek maintains a cautiously optimistic outlook for its shortterm operations, supported by customer inventory restocking and pre-stocking in anticipation of memory price hikes. The company will continue to closely monitor the external environment and development across all end markets.

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瑞昱半導體 2025年第四季法人說明會 Realtek 4Q25 Earnings Release

4Q25 Net Sales (NT$ mn)

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QoQ -10.9%
YoY -0.3%
29,491
26,345 26,278
4Q24 3Q25 4Q25
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(%) 4Q25 Gross Margin

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QoQ -1.6ppt
YoY -0.3ppt
49.7%
48.3%
48.1%
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4Q24 3Q25 4Q25
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(NT$ mn) 4Q25 Operating Expenses

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QoQ -10.7%
YoY +4.5%
11,538
10,301
9,858
R&D Expenses
8,644
7,694
7,461 Administration Expenses
Selling Expenses
1,460
1,373
1,419
977 1,435 1,233
4Q24 3Q25 4Q25
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4Q25 Operating Income (NT$ mn) / 4Q25 Operating Margin (%)

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QoQ -1.7ppt
YoY -2.0ppt
10.9% 10.6%
8.9%
3,113 Operating Income
2,879
2,335
Operating Margin
4Q24 3Q25 4Q25
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4Q25 Net Income (NT$mn) / 4Q25 Net Profit Margin (%)

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QoQ -1.5ppt
YoY -2.8ppt
12.9%
11.6%
10.1%
3,400 3,429 Net Income
2,654
Net Profit Margin
4Q24 3Q25 4Q25
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4Q25 EPS (NT$)

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QoQ -$1.52
YoY -$1.46
$6.63 $6.69
$5.17
4Q24 3Q25 4Q25
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2025 Net Sales (NT$ mn)

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YoY +8.2%
122,706
113,394
2024 2025
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(%) 2025 Gross Margin

YoY -0.4ppt

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50.4%
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50.0%
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2024

2025

(NT$ mn) 2025 Operating Expenses

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YoY +7.7%
47,014
43,660
35,125
R&D Expenses
33,544
Administration Expenses
Selling Expenses
5,905
5,324
4,793 5,984
2024 2025
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2025 Operating Income (NT$ mn) /2025 Operating Margin (%)

YoY -0.2ppt

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11.9% 11.7%
14,360
13,502
2024 2025
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Operating Income Operating Margin

2025 Net Income (NT$mn) / 2025 Net Profit Margin (%)

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YoY-1.5ppt
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13.5%
12.0%
15,292
14,753
2024 2025
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Net Income Net Profit Margin

2025 EPS (NT$)

YoY-$1.05

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$29.82
$28.77
2024 2025
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4Q25 合併損益表 (自結數)

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註: 數字加總不等，因四捨五入造成

2025合併損益表 自結數 ( )

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註: 數字加總不等，因四捨五入造成

4Q25 合併資產負債表 (自結數)

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註: 數字加總不等，因四捨五入造成

4Q25 合併現金流量表 (自結數)

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註: 數字加總不等，因四捨五入造成
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4Q25 Consolidated Income Statement (Unaudited)

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Note : Sums may not equal totals due to rounding.

2025 Consolidated Income Statement (Unaudited)

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Note : Sums may not equal totals due to rounding.

4Q25 Consolidated Balance Sheet (Unaudited)

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Note : Sums may not equal totals due to rounding.

4Q25 Consolidated Cash Flow Statement (Unaudited)

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Note : Sums may not equal totals due to rounding.

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Thank You