Insider filing report for Changes in Beneficial Ownership
- Schedule 13G & 13D forms are used to report a party's ownership of stock which exceeds 5% of a company's total stock issue.
- Schedule 13G is a shorter version of Schedule 13D with fewer reporting requirements.
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- Peter Lynch
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 6)*
|
ProQR Therapeutics N.V. (Name of Issuer) |
Ordinary Shares, nominal value Euro 0.04 per share (Title of Class of Securities) |
N71542109 (CUSIP Number) |
Van Herk Investments B.V. Lichtenauerlaan 30,, The Netherlands, P7, 3062 ME 31-10-241-1555 Evan S. Simpson 1 New Fetter Lane,, London, X0, EC4A 1AN 44 20 795984-26 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) |
06/26/2026 (Date of Event Which Requires Filing of This Statement) |
If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.
The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the
Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, see the Notes).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
Van Herk Investments B.V. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
CO |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of ProQR Therapeutics N.V. (the "Issuer") expected to be issued and outstanding as of June 26, 2026, as described in the Issuer's Prospectus Supplement dated June 25, 2026 and filed with the SEC pursuant to Rule 424(b)(5) on June 26, 2026 (the "Prospectus Supplement") (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
Van Herk Investments THI B.V. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
CO |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
Van Herk Private Equity Investments B.V. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
CO |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
Stichting Administratiekantoor Penulata | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
Van Herk Management Services B.V. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
CO |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
Onroerend Goed Beheer- en Beleggingsmaatschappij A. van Herk B.V. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
CO |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
A. van Herk Holding B.V. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
CO |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
Stichting Administratiekantoor Abchrys | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| CUSIP No. | N71542109 |
| 1 |
Name of reporting person
Adrianus van Herk | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
BK, WC, PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
NETHERLANDS
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
15,384,250.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
Comment for Type of Reporting Person:
* Based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026).
SCHEDULE 13D
|
| Item 1. | Security and Issuer | |
| (a) | Title of Class of Securities:
Ordinary Shares, nominal value Euro 0.04 per share | |
| (b) | Name of Issuer:
ProQR Therapeutics N.V. | |
| (c) | Address of Issuer's Principal Executive Offices:
Zernikedreef 9, Leiden,
NETHERLANDS
, 2333 CK. | |
Item 1 Comment:
This Schedule 13D/A (this "Amendment No. 6") amends the Schedule 13D filed on May 28, 2025, as amended by Amendment No. 1 filed on August 20, 2025, Amendment No. 2 filed on September 4, 2025, Amendment No. 3 filed on September 30, 2025, Amendment No. 4 filed on February 6, 2026 and Amendment No. 5 filed on June 3, 2026 (collectively, the "Original Schedule 13D," and as amended and supplemented by this Amendment No. 6, the "Schedule 13D"). Items 1, 2, and 5 of the Original Schedule 13D are hereby amended and supplemented to the extent hereinafter expressly set forth in this Amendment No. 6. Except as amended hereby, the original disclosure set forth in the Original Schedule 13D shall remain unchanged. All capitalized terms used and not expressly defined herein have the respective meanings ascribed to such terms in the Original Schedule 13D. | ||
| Item 2. | Identity and Background | |
| (a) | The information previously provided in response to Item 2 is hereby amended and restated by replacing the text thereof in its entirety with the following: This statement is being filed by (i) Van Herk Investments B.V., a private company with limited liability incorporated under the laws of the Netherlands ("VHI"), with respect to Ordinary Shares, nominal value Euro 0.04 per share (the "Ordinary Shares"), beneficially owned by it, (ii) Van Herk Investments THI B.V., a private company with limited liability incorporated under the laws of the Netherlands ("VHIT"), with respect to Ordinary Shares beneficially owned by VHI, (iii) Van Herk Private Equity Investments B.V., a private company with limited liability incorporated under the laws of the Netherlands ("VHPI"), with respect to Ordinary Shares beneficially owned by VHI and VHIT, (iv) Stichting Administratiekantoor Penulata, a foundation organized under the laws of the Netherlands ("Penulata"), with respect to Ordinary Shares beneficially owned by VHI, VHIT and VHPI, (v) Van Herk Management Services B.V., a private company with limited liability incorporated under the laws of the Netherlands ("VHMS"), with respect to Ordinary Shares beneficially owned by VHI, VHIT and VHPI, (vi) Onroerend Goed Beheer- en Beleggingsmaatschappij A. van Herk B.V., a private company with limited liability incorporated under the laws of the Netherlands ("OGBBA"), with respect to Ordinary Shares beneficially owned by VHI, VHIT, VHPI and VHMS, (vii) A. van Herk Holding B.V., a private company with limited liability incorporated under the laws of the Netherlands ("Holdings"), with respect to Ordinary Shares beneficially owned by VHI, VHIT, VHPI, VHMS and OGBBA, (viii) Stichting Administratiekantoor Abchrys, a foundation organized under the laws of the Netherlands ("Abchrys"), with respect to Ordinary Shares beneficially owned by VHI, VHIT, VHPI, VHMS, OGBBA and Holdings, and (ix) Adrianus van Herk ("Mr. van Herk") with respect to Ordinary Shares beneficially owned by VHI, VHIT, VHPI, VHMS, OGBBA, Holdings, Penulata and Abchrys. Each of Mr. van Herk, VHIT, VHPI, Penulata, VHMS, OGBBA, Holdings and Abchrys disclaims beneficial ownership of the securities covered by this statement. | |
| (b) | The principal business address of each of Mr. van Herk, VHI, VHIT, VHPI, Penulata, VHMS, OGBBA, Holdings and Abchrys is: Lichtenauerlaan 30 3062 ME Rotterdam The Netherlands | |
| (c) | Mr. van Herk is (i) an investor, (ii) the holder of all of the depositary receipts issued by Penulata and Abchrys, (iii) the sole board member of Penulata and Abchrys, and (iv) the sole managing director of VHMS, OGBBA and Holdings. Penulata holds substantially all of the issued and outstanding shares of VHPI. VHPI is the sole shareholder of VHIT. VHIT is the sole shareholder of VHI. VHI is principally engaged in making investments. Abchrys holds substantially all of the issued and outstanding shares of Holdings. Holdings is the sole shareholder of OGBBA. OGBBA is the sole shareholder of VHMS and is principally engaged in making investments. VHMS is the sole managing director of VHI, VHIT and VHPI. | |
| (d) | During the last five years, none of the Reporting Persons, nor, to the knowledge of the Reporting Persons, any of the executive officers or directors of the Reporting Persons, if applicable, has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors). | |
| (e) | During the last five years, none of the Reporting Persons, nor, to the knowledge of the Reporting Persons, any of the executive officers or directors of the Reporting Persons, if applicable, has been a party to a civil proceeding of a judicial or administrative body of a competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. | |
| (f) | Each of VHI, VHIT, VHPI, VHMS, OGBBA and Holdings is a private company with limited liability incorporated under the laws of the Netherlands. Penulata and Abchrys are Netherlands foundations. Mr. van Herk is a citizen of the Netherlands. | |
| Item 5. | Interest in Securities of the Issuer | |
| (a) | The information previously provided in response to Item 5 is hereby amended and restated by replacing the text thereof in its entirety with the following: The information set forth in or incorporated by reference in Items 2, 3, 4 and 6 and on the cover pages of this Schedule 13D is incorporated by reference in its entirety into this Item 5. The Reporting Persons hold an aggregate 15,384,250 ordinary shares, nominal value Euro 0.04 per share, of the Issuer, representing approximately 10.9% of the ordinary shares outstanding as of June 26, 2026. All such ownership percentages of the securities reported herein are based on 141,119,032 ordinary shares, nominal value Euro 0.04 per share, of the Issuer expected to be issued and outstanding as of June 26, 2026, as described in the Prospectus Supplement (after giving effect to the issuances of shares contemplated therein, which the Prospectus Supplement stated were expected to be completed on June 26, 2026). This Amendment No. 6 is being filed to reflect a change in the percentage previously reported solely as a result of the change in the outstanding ordinary shares as a result of the issuances of shares contemplated in the Prospectus Supplement. Except for the change in percentage ownership described herein, there have been no other material changes to the information previously reported since the filing of Amendment No. 5. | |
| (b) | The information set forth in or incorporated by reference in Items 2, 3, 4 and 6 and on the cover pages of this Schedule 13D is incorporated by reference in its entirety into this Item 5. | |
| (c) | Except as set forth in this Schedule 13D, no transactions in Ordinary Shares of the Issuer have been effected during the past sixty days by any of the Reporting Persons. | |
| (d) | Except as set forth herein, to the knowledge of the Reporting Persons, no other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, any securities of the Issuer beneficially owned by the Reporting Persons as described in this Item 5. | |
| (e) | Not applicable. | |
| 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.
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Comments accompanying signature:
* Pursuant to a Power of Attorney, dated as of September 16, 2019, by and among the Reporting Persons. |