Kalaris Therapeutics, Inc. - KLRS
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Samsara BioCapital, LLC | History | No change | 12,881,175 | 52,426 | 4.31% | 4.31% | 1 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| RTW INVESTMENTS, LP | History | No change | 1,300,000 | 5,291 | 0.05% | 0.05% | 2 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Alyeska Investment Group, L.P. | History | No change | 572,687 | 2,330 | 0.01% | 0.01% | 3 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Siren, L.L.C. | History | No change | 435,798 | 1,773 | 0.04% | 0.04% | 4 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | No change | 398,712 | 1,622 | 0.0% | 0.0% | 5 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Ikarian Capital, LLC | History | No change | 360,000 | 1,465 | 0.16% | 0.16% | 6 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| UBS Group AG | History | No change | 262,131 | 1,066 | 0.0% | 0.0% | 7 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | No change | 149,351 | 607 | 0.0% | 0.0% | 8 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| MARSHALL WACE, LLP | History | No change | 139,201 | 566 | 0.0% | 0.0% | 9 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | No change | 114,037 | 464 | 0.0% | 0.0% | 10 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| Woodline Partners LP | History | No change | 100,000 | 407 | 0.0% | 0.0% | 11 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| ADAR1 Capital Management, LLC | History | No change | 100,000 | 407 | 0.02% | 0.02% | 12 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| WHI TRUST Co LLC | History | No change | 97,493 | 396 | 0.26% | 0.26% | 13 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | No change | 97,164 | 395 | 0.0% | 0.0% | 14 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| CITADEL ADVISORS LLC | History | No change | 95,772 | 389 | 0.0% | 0.0% | 15 | 0 | 0.0% | Q2 2026 | Sep 02, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | No change | 92,261 | 375 | 0.0% | 0.0% | 16 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Verdad Advisers, LP | History | No change | 80,297 | 326 | 0.31% | 0.31% | 17 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| MORGAN STANLEY | History | No change | 72,326 | 294 | 0.0% | 0.0% | 18 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | No change | 66,179 | 269 | 0.0% | 0.0% | 19 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| BlackRock, Inc. | History | No change | 54,442 | 221 | 0.0% | 0.0% | 20 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| Belpointe Asset Management LLC | History | No change | 40,000 | 162 | 0.01% | 0.01% | 21 | 0 | 0.0% | Q2 2026 | Jul 31, 2026 |
| Fortis Capital Advisors, LLC | History | No change | 40,000 | 162 | 0.02% | 0.02% | 22 | 0 | 0.0% | Q2 2026 | Jul 31, 2026 |
| Pale Fire Capital SE | History | No change | 39,626 | 161 | 0.01% | 0.01% | 23 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Squarepoint Ops LLC | History | No change | 38,775 | 157 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | No change | 32,500 | 132 | 0.0% | 0.0% | 25 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Stonepine Capital Management, LLC | History | No change | 30,122 | 122 | 0.07% | 0.07% | 26 | 0 | 0.0% | Q2 2026 | Aug 17, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | History | No change | 30,007 | 122 | 0.0% | 0.0% | 27 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| Trexquant Investment LP | History | No change | 29,737 | 121 | 0.0% | 0.0% | 28 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| STATE STREET CORP | History | No change | 26,510 | 107 | 0.0% | 0.0% | 29 | 0 | 0.0% | Q2 2026 | Sep 22, 2026 |
| NORTHERN TRUST CORP | History | No change | 25,839 | 105 | 0.0% | 0.0% | 30 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Velan Capital Investment Management LP | History | No change | 25,000 | 101 | 0.06% | 0.06% | 31 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | No change | 23,847 | 97 | 0.0% | 0.0% | 32 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Independent Advisor Alliance | History | No change | 18,125 | 73 | 0.0% | 0.0% | 33 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| RBF Capital, LLC | History | No change | 17,391 | 70 | 0.0% | 0.0% | 34 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| WealthTrust Asset Management, LLC | History | Added to | 23,604 | 68 | 0.04% | 0.04% | 35 | +3,188 | 15.62% | Q3 2026 | Oct 22, 2026 |
| Quadrature Capital Ltd | History | No change | 16,527 | 67 | 0.0% | 0.0% | 36 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| GOLDMAN SACHS GROUP INC | History | No change | 16,054 | 65 | 0.0% | 0.0% | 37 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | No change | 14,221 | 57 | 0.0% | 0.0% | 38 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| HRT FINANCIAL LP | History | No change | 13,723 | 55 | 0.0% | 0.0% | 39 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | History | No change | 12,500 | 50 | 0.04% | 0.04% | 40 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | No change | 15,958 | 46 | 0.0% | 0.0% | 41 | 0 | 0.0% | Q3 2026 | Nov 04, 2026 |
| Virtu Financial LLC | History | No change | 10,845 | 44 | 0.0% | 0.0% | 42 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| FMR LLC | History | No change | 7,806 | 31 | 0.0% | 0.0% | 43 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Tower Research Capital LLC (TRC) | History | No change | 2,560 | 10 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| Steward Partners Investment Advisory, LLC | History | No change | 2,215 | 9 | 0.0% | 0.0% | 45 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Caitong International Asset Management Co., Ltd | History | Added to | 1,559 | 4 | 0.0% | — | 46 | +1,552 | 22171.43% | Q3 2026 | Oct 29, 2026 |
| Vanguard Global Advisers, LLC | History | No change | 725 | 2 | 0.0% | 0.0% | 47 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| BARCLAYS PLC | History | No change | 303 | 1 | 0.0% | 0.0% | 48 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Sigma Planning Corp | History | Closed out | 0 | 0 | — | 0.0% | — | -10,167 | -100.0% | Q3 2026 | Oct 23, 2026 |
| Parallel Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -49 | -100.0% | Q3 2026 | Nov 03, 2026 |
| CITIGROUP INC | History | New | 1 | 0 | — | — | — | +1 | New | Q3 2026 | Nov 04, 2026 |
| JPMORGAN CHASE & CO | History | No change | 50 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| HARBOUR INVESTMENTS, INC. | History | No change | 13 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| ROYAL BANK OF CANADA | History | No change | 12 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | No change | 52 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| SBI Securities Co., Ltd. | History | No change | 5 | 0 | — | — | — | 0 | 0.0% | Q3 2026 | Oct 21, 2026 |
| Strengthening Families & Communities, LLC | History | No change | 268 | 0 | — | 0.0% | — | 0 | 0.0% | Q3 2026 | Oct 21, 2026 |