Notes to the financial statements of Sonova Holding AG as of 31 March 2026

1. General information

The financial statements of Sonova Holding AG, with registered office in Stäfa, comply with the requirements of Swiss Law on Accounting and Financial Reporting (32nd title of the Swiss Code of Obligations, ʼSCOʼ). The company does not have any employees (previous year: none).

2. Accounting principles

2.1Financial income/expenses

Financial income/expenses consists of gains and losses from sale/transfer of shares in relation to long-term incentive plans, realized/unrealized foreign exchange gains and losses as well as interest income/expenses.

2.2Financial assets

Financial assets contain loans to third parties as well as to Group companies and are recognized at cost less adjustments for foreign currency losses and impairment of value. Loans granted in foreign currency are translated at balance sheet date.

2.3Investments

Investments consist mainly of participations in fully consolidated Group companies. They are subject to individual valuation.

2.4Bonds

Bonds are valued at nominal value. Any bond premium/discount is accrued/capitalized and released/amortized linearly over the term.

2.5Treasury shares

Treasury shares are recognized at cost and deducted from shareholdersʼ equity. The gain or loss from sale is recognized in the income statement as financial gain or financial loss.

3. Information on income statement and balance sheet items

3.1Bonds

As of 31 March 2026, the Group has the following bank loans/bonds outstanding:

Financial liabilities

Carrying amount (CHF million)

Currency

Nominal value

Interest rate

Maturity

Bank loan (credit facility)

103.9

USD

130

4.04%

n/a

Fixed-rate bond

299.8

CHF

300

0.75%

6 October 2028

Fixed-rate bond

199.4

CHF

200

1.05%

19 February 2029

Fixed-rate bond

99.9

CHF

100

0.00%

11 October 2029

Fixed-rate bond

199.7

CHF

200

1.95%

12 December 2030

Fixed-rate bond

249.9

CHF

250

1.40%

19 February 2032

Fixed-rate bond

149.6

CHF

150

0.93%

6 October 2033

Fixed-rate bond

99.8

CHF

100

0.40%

11 October 2034

3.2Treasury shares

Treasury shares held by Sonova Holding AG Number/CHF million

Number

Treasury shares at cost

Balance 1 April 2025

18,825

5.6

Purchase of treasury shares

290,000

63.1

Sale / Transfer of treasury shares

(86,618)

(20.1)

Loss from sale of treasury shares

(3.1)

Balance 31 March 2026

222,207

45.6

3.3Contingent liabilities

CHF million

31 March 2026

31 March 2025

Guarantees given in respect of rental obligations of Group companies

1.1

1.7

Guarantees given in respect of bank loans of Group companies

64.5

0.0

Guarantees given in respect of insurances of Group companies

5.0

0.0

The Swiss Sonova entities form a VAT group and, hence, every company participating in the group is jointly and severally liable for VAT debt of other group participants. Further Sonova Group companies participating in the cash pool are jointly and severally liable for any debit position or outstanding overdraft in connection with them.

3.4List of investments

Company name

Activity

Domicile

Share/paid-in capital1) Local currency 1,000

Shares held by Sonova Holding

Switzerland

Sonova AG

A,B,C,D

Stäfa

CHF

2,500

100%

Sonova Communications AG

B, C, D

Murten

CHF

500

100%

Verve Hearing Systems AG

A

Stäfa

CHF

100

100%

EMEA (excluding Switzerland)

Sonova Belgium NV

A, B

Asse Zellik (BE)

EUR

15,311

70%2)

Sonova Deutschland GmbH

B

Fellbach (DE)

EUR

41

85%2)

Sonova Denmark A/S

B

Middelfart (DK)

DKK

14,182

78%2)

Sonova Ibérica S.A.U.

B

San Vincente del Raspeig (ES)

EUR

7,000

100%

Sonova France SAS

B

Bron-Lyon (FR)

EUR

1,000

30%2)

SCI Du Triangle De Bron

A

Bron-Lyon (FR)

EUR

46

100%

Sonova Norway AS

B

Oslo (NO)

NOK

3,708

49%2)

Sonova Polska Sp. Z o.o.

B

Warsaw (PL)

PLN

100

100%

Sonova RUS LLC

B

Moscow (RU)

RUB

4,000

100%

Sonova UK Ltd.

B

Warrington (UK)

GBP

2,500

100%

Boots Hearing Care Ltd.

B

Llandudno (UK)

GBP

03)

51%

For significant indirect investments refer to Note 7.6 of the consolidated financial statements of Sonova Holding AG.

Description:

AHolding/Finance: The entity is a holding or finance company.

BSales: The entity performs sales and marketing activities for the group.

CProduction: This entity performs manufacturing for the group.

DResearch: This entity performs research and development activities for the group.

1)Share/paid in capital may not reflect the taxable share/paid-in capital amount and does not include any paid-in surplus.

2)The remaining shares are held by a subsidiary of Sonova Holding AG.

3)GBP 133

Company name

Activity

Domicile

Share/paid-in capital1) Local currency 1,000

Shares held by Sonova Holding

Americas

Sonova Canada Inc.

B

Mississauga (CA)

CAD

03)

85%2)

Sonova Mexico Soluciones S.A. de C.V.

B

Ciudad de Mexico (MX)

MXN

94,050

85%2)

AudioNova Mexico S.A. de C.V.

B

Ciudad de Mexico (MX)

MXN

66,050

99%2)

Sonova United States Hearing Instruments, LLC

B

Aurora (US)

USD

03)

73%2)

Asia/Pacific

Sonova Hearing (Suzhou) Co., Ltd.

C

Suzhou (CN)

CNY

46,249

100%

Sonova (Shanghai) Co., Ltd

B

Shanghai (CN)

CNY

20,041

80%2)

Sonova Hearing India Pvt. Ltd.

B

Mumbai (IN)

INR

459

56%2)

Sonova Korea Ltd.

B

Seoul (KR)

KRW

50,000

100%

Sonova New Zealand (Wholesale) Ltd.

B

Auckland (NZ)

NZD

250

100%

Sonova Singapore Pte. Ltd.

B

Singapore (SG)

SGD

250

100%

Sonova Taiwan Pte. Ltd.

B

Zhonge City (TW)

TWD

3,100

100%

Sonova Operation Center Vietnam Co., Ltd.

C

Thuan An (VN)

VND

36,156,000

100%

Sonova Vietnam Company Limited

B

Ho Chi Minh City (VN)

VND

2,088,000

70%2)

For significant indirect investments refer to Note 7.6 of the consolidated financial statements of Sonova Holding AG.

Description:

BSales: The entity performs sales and marketing activities for the group.

CProduction: This entity performs manufacturing for the group.

1)Share/paid in capital may not reflect the taxable share/paid-in capital amount and does not include any paid-in surplus.

2)The remaining shares are held by a subsidiary of Sonova Holding AG.

3)Shares without par value

3.5Significant shareholders

The following overview shows the significant shareholders as of 31 March 2026 based on shareholdings recorded in the share register and notifications on the SIX Swiss Exchange online reporting platform. Significant shareholders may also hold non-registered shares.

20261)

20262)

20251)

20252)

No. of shares

In %

No. of shares

In %

Beda Diethelm and Annamaria Diethelm-Pandiani 3)

6,712,923

11.26

6,712,878

11.26

Family of Hans-Ulrich Rihs 3), 4)

3,683,649

6.18

3,683,649

6.18

BlackRock, Inc.

3,334,293

5.10

3,334,293

5.10

UBS Fund Management (Switzerland) AG

3,263,184

5.48

3,263,184

5.48

MFS Investment Management 6)

1,847,415

3.02

1,847,415

3.02

T. Rowe Price Associates, Inc.

1,791,406

3.00

3,025,893

5.08

The Capital Group Company, Inc. 5)

n.d.

<3.00

1,990,498

3.34

1)Or at the last reported date if shareholdings are not registered in the share register.

2)On the basis of the shares of Sonova Holding AG registered in the commercial register at the last reported date which may differ.

3)Beda Diethelm and Hans-Ulrich Rihs were already shareholders before the Initial Public Offering in November 1994. There are no shareholders’ agreements among these individuals and they can trade freely.

4)Hans-Ulrich Rihs, Gabriela Rihs and Stefan Rihs as a group jointly control 3,683,649 registered shares (corresponding to 6.18% of total Sonova share capital) pursuant to the last disclosure notice. These shares were previously controlled by Hans-Ulrich Rihs as a single shareholder.

5)The Capital Group Companies, Inc. are held by the following direct or indirect holders: Capital Research and Management Company, Los Angeles, US; Capital International Sarl, Geneva, CH; Capital International Limited, London, GB; and Capital International, Inc., Los Angeles, US.

6)MFS Investment Management, formerly known as Massachusetts Financial Services, is held by Sun Life Financial Inc. which is traded on the TSX, NYSE and PSE (ticker symbol SLF).

3.6Shareholdings and participations

Sonova Holding AG granted the following number of shares and options as part of the employee participation plans.

1 April to 31 March, CHF million

2025/26 1)

2024/25 1)

Shares

Options (incl. SARs)

Shares

Options (incl. SARs)

Number (units)

Fair Value

Number (units)

Fair Value

Number (units)

Fair Value

Number (units)

Fair Value

Board of Directors

7,041

1.5

5,668

1.8

Executive Committee

1,540

0.4

12,490

0.7

6,044

2.1

32,640

2.6

Employees

73,150

14.6

117,409

5.2

49,558

15.2

66,862

5.3

Total

81,731

16.5

129,899

5.8

61,270

19.1

99,502

7.9

1)For further details see also Note 7.4 in the consolidated financial statements.

For further details to shareholdings in the company by members of the Board of Directors and by members of the Executive Committee, in accordance with Swiss Code of Obligation article 663c, refer to the compensation report of Sonova Holding AG.

3.7Events after the balance sheet date

There have been no material events after the balance sheet date.