James Samuel Shannon - 18 Mar 2026 Form 3 Insider Report for ProQR Therapeutics N.V. (PRQR)

Reporting relationship
Director
Issuer ticker
PRQR
Reported as of
18 Mar 2026
Net transaction value
$0
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
3
Accepted by SEC
18 Mar 2026, 16:01:16 UTC
Prior SEC filing
03 Mar 2026
Next SEC filing
30 Mar 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Pieter Erik de Ridders, Attorney-in-Fact

Key filing fact

James Samuel Shannon filed Form 3 for ProQR Therapeutics N.V. (PRQR) on 18 Mar 2026.

Key facts

  • This page summarizes James Samuel Shannon's Form 3 filing for ProQR Therapeutics N.V. (PRQR).
  • 0 reported transactions and 11 derivative rows are listed below.
  • Accepted by SEC: 18 Mar 2026, 16:01.

Change

  • Previous filing in this sequence was filed on 03 Mar 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (1)

CIK 0001485417 Primary reporting owner

Shannon James Samuel

Relationship
Director
Address
PROQR THERAPEUTICS N.V., ZERNIKEDREEF 9, LEIDEN, NETHERLANDS
Signature
/s/ Pieter Erik de Ridders, Attorney-in-Fact
Signature date
18 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PRQR holding

Ordinary Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
61,538
Date
18 Mar 2026
Ownership
Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
33,069
Exercise price
$4.89
Footnotes
F1
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
32,164
Exercise price
$4.90
Footnotes
F1
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
27,500
Exercise price
$3.30
Footnotes
F1
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
14,918
Exercise price
$15.78
Footnotes
F1
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
24,615
Exercise price
$9.91
Footnotes
F1
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
23,239
Exercise price
$4.20
Footnotes
F1
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
23,931
Exercise price
$8.01
Footnotes
F1
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
22,608
Exercise price
$3.41
Footnotes
F2
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
23,489
Exercise price
$1.98
Footnotes
F3
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
22,128
Exercise price
$2.65
Footnotes
F4
PRQR holding Derivative

Share Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
25,192
Exercise price
$2.02
Footnotes
F5
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Fully vested.

Footnote F2

25% of the shares subject to such option vest and become exercisable on January 1, 2024, and the remaining 75% vest in 12 substantially equal quarterly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date.

Footnote F3

25% of the shares subject to such option vest and become exercisable on January 1, 2025, and the remaining 75% vest in 12 substantially equal quarterly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date.

Footnote F4

25% of the shares subject to such option vest and become exercisable on January 1, 2026, and the remaining 75% vest in 12 substantially equal quarterly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date.

Footnote F5

25% of the shares subject to such option vest and become exercisable on January 1, 2027, and the remaining 75% vest in 12 substantially equal quarterly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date.

SEC remarks

Exhibit 24 - Power of Attorney

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