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ProQR Therapeutics N.V.

PRQR
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001612940

In the last 90 days, ProQR Therapeutics N.V. insiders filed 4 open-market purchases and 0 sales; 70 institutions reported holding it in 13F filings for Q2 2026, worth $113.0M in total; no superinvestor holds it.

Holders of 5% or more of PRQR

Holders whose latest Schedule 13D or 13G filing reports 5% or more of ProQR Therapeutics N.V., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of PRQR
HolderLatest formStakeChangeFirst filedLatest filingFiling
Eli Lilly & Co13G/A15.60%22.0M shares–Sep 10, 20213 filingsJul 24, 2026SEC
Van Herk Investments B.V.13D/A10.90%15.4M shares0.00 ppfrom 10.90%Sep 14, 202312 filingsJul 29, 2026SEC
Standard Life Aberdeen plc13G6.33%8.93M sharesNewJul 29, 20261 filingJul 29, 2026SEC
Adage Capital Management, L.P.13G/A6.27%6.60M shares−1.43 ppfrom 7.70%Feb 12, 20253 filingsAug 12, 2025SEC
Privium Fund Management B.V.13G/A5.20%5.53M shares0.00 ppfrom 5.20%Jan 20, 20262 filingsJul 15, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

41 Schedule 13D and 13G filings on ProQR Therapeutics N.V., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on PRQR
Filed (ET)FilerFormStakeChangeEvent dateFiling
Jul 29, 20264:03 PM ETVan Herk Investments B.V.and 8 others13D/A10.90%15.4M shares0.00 ppfrom 10.90%Jul 27, 2026SEC
Jul 29, 20269:48 AM ETStandard Life Aberdeen plcand 1 other13G6.33%8.93M sharesNewJun 30, 2026SEC
Jul 24, 20264:30 PM ETEli Lilly & Co13G/A15.60%22.0M shares–Jun 26, 2026SEC
Jul 15, 202611:54 AM ETPrivium Fund Management B.V.and 4 others13G/A5.20%5.53M shares0.00 ppfrom 5.20%Jul 15, 2026SEC
Jun 30, 20265:23 PM ETVan Herk Investments B.V.and 8 others13D/A10.90%15.4M shares−3.70 ppfrom 14.60%Jun 26, 2026SEC
Jun 3, 20265:24 PM ETVan Herk Investments B.V.and 8 others13D/A14.60%15.4M shares0.00 ppfrom 14.60%Jun 2, 2026SEC
Feb 6, 20264:01 PM ETVan Herk Investments B.V.and 8 others13D/A14.60%15.4M shares+1.00 ppfrom 13.60%Feb 5, 2026SEC
Jan 20, 20265:21 PM ETPrivium Fund Management B.V.and 4 others13G5.20%5.53M sharesNewDec 11, 2025SEC
Sep 30, 20254:01 PM ETVan Herk Investments B.V.and 8 others13D/A13.60%14.3M shares+1.00 ppfrom 12.60%Sep 29, 2025SEC
Sep 4, 20254:15 PM ETVan Herk Investments B.V.and 8 others13D/A12.60%13.3M shares+1.00 ppfrom 11.60%Sep 3, 2025SEC
Aug 20, 20256:00 AM ETVan Herk Investments B.V.and 8 others13D/A11.60%12.2M shares+0.70 ppfrom 10.90%Aug 19, 2025SEC
Aug 12, 20259:03 AM ETAdage Capital Management, L.P.and 2 others13G/A6.27%6.60M shares−1.43 ppfrom 7.70%Jun 30, 2025SEC
May 28, 20258:42 AM ETVan Herk Investments B.V.and 8 others13D10.90%11.5M shares0.00 ppfrom 10.90%May 23, 2025SEC
May 12, 20259:07 AM ETAdage Capital Management, L.P.and 2 others13G/A7.70%8.10M shares−1.60 ppfrom 9.30%Mar 31, 2025SEC
Feb 14, 20256:12 PM ETVan Herk Investments B.V.and 8 others13G/A10.90%11.5M shares–Dec 31, 2024SEC
Feb 12, 20259:46 AM ETAdage Capital Management, L.P.and 2 others13G9.30%9.60M sharesNewDec 31, 2024SEC
Feb 14, 2024Van Herk Investments B.V.13G/AOld format–––SEC
Feb 9, 2024Van Herk Investments B.V.13G/AOld format–––SEC
Sep 14, 2023Van Herk Investments B.V.13GOld format–New–SEC
Feb 14, 2023RTW Investments, LP13G/AOld format–––SEC
Feb 9, 2023Stichting Aescap Life Sciences13G/AOld format–––SEC
Feb 9, 2023Adage Capital Partners GP, L.L.C.13G/AOld format–––SEC
Feb 9, 2023FMR LLC13G/AOld format–––SEC
Feb 7, 20236:11 PM ETGoldman Sachs Group Inc13G/AOld format–––SEC
Dec 23, 20224:39 PM ETEli Lilly & Co13G/AOld format–––SEC
May 9, 2022Wellington Management Group LLP13G/AOld format–––SEC
Feb 14, 2022RTW Investments, LP13G/AOld format–––SEC
Feb 10, 2022Adage Capital Partners GP, L.L.C.13G/AOld format–––SEC
Feb 9, 2022FMR LLC13GOld format–New–SEC
Feb 7, 20221:57 PM ETGoldman Sachs Group Inc13G/AOld format–––SEC
Feb 4, 2022Wellington Management Group LLP13G/AOld format–––SEC
Feb 4, 2022Stichting Aescap Life Sciences13G/AOld format–––SEC
Sep 10, 20211:03 PM ETEli Lilly & Co13GOld format–New–SEC
Apr 6, 2021RTW Investments, LP13G/AOld format–––SEC
Feb 12, 2021RTW Investments, LP13G/AOld format–––SEC
Feb 12, 2021Goldman Sachs & Co. LLC13G/AOld format–––SEC
Feb 11, 2021Adage Capital Partners GP, L.L.C.13G/AOld format–––SEC
Feb 10, 2021Jennison Associates LLC13G/AOld format–––SEC
Feb 9, 2021Prudential Financial Inc13G/AOld format–––SEC
Feb 9, 2021Stichting Aescap 2.013G/AOld format–––SEC
Feb 3, 2021Wellington Management Group LLP13G/AOld format–––SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell ProQR Therapeutics N.V. shares.

No Form 144 notices for ProQR Therapeutics N.V. are on file.