KLRS · Company research
Kalaris Therapeutics, Inc. Common Stock (KLRS): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
76records availableHealthcare
Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| Parallel Advisors, LLC | 1690010 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 49 | 199 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 14221 | 57879 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26793 | 109048 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| VANGUARD FIDUCIARY TRUST CO | 933478 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 66179 | 269349 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| MORGAN STANLEY | 895421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 17111 | 69642 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| WHI TRUST Co LLC | 2013902 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 97493 | 396797 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| FMR LLC | 315066 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7806 | 31770 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Fortis Capital Advisors, LLC | 1959790 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40000 | 162800 | — | — | — | Jul 31, 2026 | SEC_13F_DATASET |
| DIMENSIONAL FUND ADVISORS LP | 354204 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2793 | 11368 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| RBF Capital, LLC | 1134621 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 17391 | 70781 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| UBS Group AG | 1610520 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 262131 | 1066873 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Strengthening Families & Communities, LLC | 1921196 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 268 | 1091 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| HRT FINANCIAL LP | 1475597 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 13723 | 55 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 398712 | 1622758 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Steward Partners Investment Advisory, LLC | 1723397 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2215 | 9015 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| BARCLAYS PLC | 312069 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 303 | 1233 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Quadrature Capital Ltd | 1651424 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16527 | 67265 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| BOOTHBAY FUND MANAGEMENT, LLC | 1549230 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 92261 | 375502 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Caitong International Asset Management Co., Ltd | 1963355 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7 | 28 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| ADAR1 Capital Management, LLC | 1940272 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100000 | 407000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Connor, Clark & Lunn Investment Management Ltd. | 1596800 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 30007 | 122128 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RAYMOND JAMES FINANCIAL INC | 720005 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 90164 | 366967 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WealthTrust Asset Management, LLC | 1867894 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 20416 | 83093 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| Pale Fire Capital SE | 1922318 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 39626 | 161278 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| TWO SIGMA INVESTMENTS, LP | 1179392 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 23847 | 97057 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Siren, L.L.C. | 2005245 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 435798 | 1773698 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| NORTHERN TRUST CORP | 73124 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25839 | 105165 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| CITADEL ADVISORS LLC | 1423053 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 95772 | 389792 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Independent Advisor Alliance | 1696899 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 18125 | 73769 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| JPMORGAN CHASE & CO | 19617 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 46 | 194 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| SBI Securities Co., Ltd. | 1851815 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5 | 20 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 1107261 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 32500 | 132275 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | 1277890 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12500 | 50875 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Trexquant Investment LP | 1633445 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 29737 | 121030 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ROYAL BANK OF CANADA | 1000275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12 | 0 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Verdad Advisers, LP | 1812822 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 80297 | 326809 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Woodline Partners LP | 1784547 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100000 | 407000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| RTW INVESTMENTS, LP | 1493215 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1300000 | 5291000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Squarepoint Ops LLC | 1642575 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 38775 | 157814 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MARSHALL WACE, LLP | 1318757 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 114750 | 467033 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RENAISSANCE TECHNOLOGIES LLC | 1037389 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 149351 | 607859 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Vanguard Global Advisers, LLC | 1811242 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 725 | 2951 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Velan Capital Investment Management LP | 1848809 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25000 | 101750 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Sigma Planning Corp | 1449126 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10167 | 41380 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| Integrated Wealth Concepts LLC | 1737109 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5000 | 20350 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| STATE STREET CORP | 93751 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26510 | 107896 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| State Street Corporation | 93751 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26510 | 107896000 | — | — | — | Sep 22, 2026 | SEC_13F_HR |
| Belpointe Asset Management LLC | 1721242 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40000 | 162800 | — | — | — | Jul 31, 2026 | SEC_13F_DATASET |
| Goldman Sachs Group Inc. | 886982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16054 | 65340000 | — | — | — | Aug 14, 2026 | SEC_13F_HR |
| Northern Trust Corp | 73124 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25839 | 105165000 | — | — | — | Aug 13, 2026 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1725 | 7021000 | — | — | — | Aug 7, 2026 | SEC_13F_HR |
| GEODE CAPITAL MANAGEMENT, LLC | 1214717 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 99306 | 404332 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Tower Research Capital LLC (TRC) | 1533421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2560 | 10419 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| BNP PARIBAS FINANCIAL MARKETS | 1166588 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 52 | 212 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Virtu Financial LLC | 1533964 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10845 | 44 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Stonepine Capital Management, LLC | 1440771 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 30122 | 122597 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SAMSARA BIOCAPITAL, LLC | 1744967 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12881175 | 52426382 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| GOLDMAN SACHS GROUP INC | 886982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16054 | 65340 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Alyeska Investment Group, L.P. | 1453072 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 572687 | 2330836 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| HARBOUR INVESTMENTS, INC. | 810121 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 13 | 53 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Ikarian Capital, LLC | 1778253 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 360000 | 1465201 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Parallel Advisors, LLC | 1690010 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 49 | 283 | — | — | — | Jun 3, 2026 | SEC_13F_DATASET |
| Goldman Sachs Group Inc. | 886982 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100224 | 578292000 | — | — | — | May 15, 2026 | SEC_13F_HR |
| State Street Corporation | 93751 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26510 | 152963000 | — | — | — | May 15, 2026 | SEC_13F_HR |
| Northern Trust Corp | 73124 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 14449 | 83371000 | — | — | — | May 14, 2026 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 608 | 3508000 | — | — | — | May 13, 2026 | SEC_13F_HR |
| Citigroup Inc. | 831001 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8703 | 50216000 | — | — | — | May 11, 2026 | SEC_13F_HR |
| Federated Hermes, Inc. | 1056288 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 34 | 196000 | — | — | — | May 11, 2026 | SEC_13F_HR |
| Northern Trust Corp | 73124 | Wed Dec 31 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 13654 | 115240000 | — | — | — | Feb 17, 2026 | SEC_13F_HR |
| State Street Corporation | 93751 | Wed Dec 31 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 25410 | 214460000 | — | — | — | Feb 13, 2026 | SEC_13F_HR |
| Citigroup Inc. | 831001 | Wed Dec 31 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 1 | 8000 | — | — | — | Feb 13, 2026 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Wed Dec 31 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 907 | 7655000 | — | — | — | Feb 12, 2026 | SEC_13F_HR |
| Goldman Sachs Group Inc. | 886982 | Tue Sep 30 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 22465 | 129848000 | — | — | — | Nov 14, 2025 | SEC_13F_HR |
| State Street Corporation | 93751 | Tue Sep 30 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 22610 | 130686000 | — | — | — | Nov 14, 2025 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Tue Sep 30 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 907 | 5242000 | — | — | — | Nov 12, 2025 | SEC_13F_HR |
| Citigroup Inc. | 831001 | Tue Sep 30 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 1 | 6000 | — | — | — | Nov 10, 2025 | SEC_13F_HR |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.