# EDGAR Filing Document

**Accession Number:** 0001953530
**File Stem:** 0001104659-26-035543
**Filing Date:** 2026-3
**Character Count:** 14356
**Document Hash:** 2e9a8256c5588604623bad7556fa3ab6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-035543.hdr.sgml**: 20260327

**ACCESSION NUMBER**: 0001104659-26-035543

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260327

**DATE AS OF CHANGE**: 20260327

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Oculis Holding AG
- **CENTRAL INDEX KEY:** 0001953530
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** V8
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-94014
- **FILM NUMBER:** 26800844

**BUSINESS ADDRESS:**
- **STREET 1:** BAHNHOFSTRASSE 7
- **CITY:** ZUG
- **STATE:** V8
- **ZIP:** 6300
- **BUSINESS PHONE:** 617-937-2423

**MAIL ADDRESS:**
- **STREET 1:** BAHNHOFSTRASSE 7
- **CITY:** ZUG
- **STATE:** V8
- **ZIP:** 6300
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BVCF IV, L.P.
- **CENTRAL INDEX KEY:** 0001761158

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** SUITE 2606, TOWER I
- **STREET 2:** NEW RICHPORT CENTER, 763 MENGZI ROAD
- **CITY:** SHANGHAI
- **STATE:** F4
- **ZIP:** 200023
- **BUSINESS PHONE:** 86 (21) 6315 1313

**MAIL ADDRESS:**
- **STREET 1:** SUITE 2606, TOWER I
- **STREET 2:** NEW RICHPORT CENTER, 763 MENGZI ROAD
- **CITY:** SHANGHAI
- **STATE:** F4
- **ZIP:** 200023

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**(Amendment No. 2)**

**Issuer:** Oculis Holding AG

**Title of Class of Securities:** Ordinary Shares, CHF 0.01 par value per share

**CUSIP Number:** —

**Date of Event Which Requires Filing of this Statement:** 02/13/2026

**Check the appropriate box to designate the rule pursuant to which this Schedule is filed:**

- [ ] Rule 13d-1(b)

- [ ] Rule 13d-1(c)

- [x] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>BVCF IV, L.P. | Names of Reporting Persons<br>BVCF IV, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>2436902.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>2436902.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2436902.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2436902.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>4.14% | Percent of Class Represented by Amount in Row (9)<br>4.14% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** Notes to Rows 6, 8 and 9: See Item 2(a) below.
Notes to Row 11: Based on 58,932,987 Ordinary Shares issued and outstanding of the Issuer as of February 13, 2026.

---

| 1. | Names of Reporting Persons<br>BEYEOTECH | Names of Reporting Persons<br>BEYEOTECH |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>2436902.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>2436902.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2436902.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2436902.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>4.14% | Percent of Class Represented by Amount in Row (9)<br>4.14% |
| 12. | Type of Reporting Person (See Instructions)<br>CO | Type of Reporting Person (See Instructions)<br>CO |

**Comment for Type of Reporting Person:** Notes to Rows 6, 8 and 9: See Item 2(a) below.
Notes to Row 11: Based on 58,932,987 Ordinary Shares issued and outstanding of the Issuer as of February 13, 2026.

---

| 1. | Names of Reporting Persons<br>BVCF IV GP, Ltd. | Names of Reporting Persons<br>BVCF IV GP, Ltd. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>E9 | Citizenship or Place of Organization<br>E9 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>2436902.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>2436902.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2436902.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2436902.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>4.14% | Percent of Class Represented by Amount in Row (9)<br>4.14% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** Notes to Rows 6, 8 and 9: See Item 2(a) below.
Notes to Row 11: Based on 58,932,987 Ordinary Shares issued and outstanding of the Issuer as of February 13, 2026.

---

| 1. | Names of Reporting Persons<br>Zhi Yang | Names of Reporting Persons<br>Zhi Yang |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>F4 | Citizenship or Place of Organization<br>F4 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>2436902.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>2436902.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2436902.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2436902.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>4.14% | Percent of Class Represented by Amount in Row (9)<br>4.14% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Notes to Rows 6, 8 and 9: See Item 2(a) below.
Notes to Row 11: Based on 58,932,987 Ordinary Shares issued and outstanding of the Issuer as of February 13, 2026.

---

**Item 1(a). Name of Issuer:**
Oculis Holding AG

**Item 1(b). Address of Issuer's Principal Executive Offices:**
Bahnhofstrasse 20 Zug, V8, CH-6300

**Item 2(a). Name of Person Filing:**
This statement is filed by (i) BVCF IV, L.P. ("Fund"), a limited partnership incorporated under the laws of the Cayman Islands, (ii) BEYEOTECH ("Beyeotech"), a company organized and existing under the laws of the Cayman Islands, (iii) BVCF IV GP, Ltd. ("GP"), a limited company incorporated under the laws of the Cayman Islands, and (iv) Mr. Zhi Yang, a director and sole shareholder of GP (Fund, Beyeotech, GP and Mr. Zhi Yang are collectively referred to as the "Reporting Persons").

Beyeotech directly holds the 2,436,902 Ordinary Shares being reported in this statement. Beyeotech is a wholly-owned subsidiary of Fund, GP is the general partner of Fund and Mr. Zhi Yang is the sole shareholder and director of GP.

GP, by virtue of it being the general partner of Fund, may be deemed to have voting control and investment discretion over the securities held by Beyeotech.

Mr. Zhi Yang, by virtue of being the director and sole shareholder of GP, may be deemed to have voting control and investment discretion over the securities held by Beyeotech.

Each of the Reporting Persons has entered into a Joint Filing Agreement, dated April 28, 2023, pursuant to which such Reporting Persons have agreed to file this statement jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended.

**Item 2(b). Address of Principal Business Office:**
The address of the principal business office of Beyeotech is 190 Elgin Avenue, George Town, Grand Cayman KY1-9008, Cayman Islands. The address of the principal business office of each of Fund, GP and Mr. Zhi Yang is 763 Mengzi Road, Suite 2604, Shanghai, China 200023.

**Item 2(c). Citizenship:**
See Row 4 of each cover page.

**Item 2(d). Title of Class of Securities:**
Ordinary Shares, CHF 0.01 par value per share

**Item 2(e). CUSIP Number:**
—

**Item 3. If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:**

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [ ] A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), if filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

See Row 9 of each cover page.

**(b) Percent of class:**

See Row 11 of each cover page.

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

See Row 5 of each cover page.

**(ii) Shared power to vote or to direct the vote:**

See Row 6 of each cover page.

**(iii) Sole power to dispose or to direct the disposition of:**

See Row 7 of each cover page.

**(iv) Shared power to dispose or to direct the disposition of:**

See Row 8 of each cover page.

**Item 5. Ownership of Five Percent or Less of a Class.**

[ ] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

Not Applicable

**Item 7. Identification and Classification of the Subsidiary**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

Not Applicable

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification:**

—

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**BVCF IV, L.P.**

**Date:** 03/27/2026

**By:** By: BVCF IV GP, Ltd., its general partner /s/ Zhi Yang

**Name & Title:** Zhi Yang/Director

**BEYEOTECH**

**Date:** 03/27/2026

**By:** /s/ Bernard Yang Feng

**Name & Title:** Bernard Yang Feng/Director

**BVCF IV GP, Ltd.**

**Date:** 03/27/2026

**By:** /s/ Zhi Yang

**Name & Title:** Zhi Yang/Director

**Zhi Yang**

**Date:** 03/27/2026

**By:** /s/ Zhi Yang

**Name & Title:** Zhi Yang