Kalaris Therapeutics, Inc.
KLRS- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001754068
No open-market purchases or sales by Kalaris Therapeutics, Inc. insiders were filed in the last 90 days; 56 institutions reported holding it in 13F filings for Q2 2026, worth $73.4M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Kalaris Therapeutics, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 56
- −2 vs. Q1 2026
- Shares held
- 18.0M
- −683.4K (−3.7%) vs. Q1 2026
- Total value
- $73.4M
- −$34.6M (−32.0%) vs. Q1 2026
- New holders
- 9
- 18 more added
- Sold out
- 11
- 9 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting KLRS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 56 | $73.4M |
| Q1 2026 | 58 | $108.0M |
| Q4 2025 | 51 | $152.0M |
| Q3 2025 | 32 | $76.4M |
| Q2 2025 | 30 | $35.7M |
| Q1 2025 | 32 | $111.4M |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Kalaris Therapeutics, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Samsara BioCapital, LLC | 12,881,175 | $52.4M | 4.31% | −66,906−0.5% | Reduced |
| RTW Investments, LP | 1,300,000 | $5.29M | 0.05% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 572,687 | $2.33M | 0.01% | 00.0% | Unchanged |
| Siren, L.L.C. | 435,798 | $1.77M | 0.04% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 398,712 | $1.62M | 0.00% | +143,364+56.1% | Added |
| Ikarian Capital, LLC | 360,000 | $1.47M | 0.24% | 00.0% | Unchanged |
| UBS Group AG | 262,131 | $1.07M | 0.00% | +255,947+4,138.9% | Added |
| Renaissance Technologies LLC | 149,351 | $607.9K | 0.00% | +83,200+125.8% | Added |
| Marshall Wace, LLP | 139,201 | $566.5K | 0.00% | +71,322+105.1% | Added |
| Geode Capital Management, LLC | 114,037 | $464.3K | 0.00% | +26,492+30.3% | Added |
| Woodline Partners LP | 100,000 | $407.0K | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 100,000 | $407.0K | 0.02% | 00.0% | Unchanged |
| Whi Trust Co LLC | 97,493 | $396.8K | 0.26% | 00.0% | Unchanged |
| Raymond James Financial Inc | 97,164 | $395.5K | 0.00% | −21,723−18.3% | Reduced |
| Citadel Advisors LLC | 95,772 | $389.8K | 0.00% | +95,772 | New |
| Boothbay Fund Management, LLC | 92,261 | $375.5K | 0.01% | 00.0% | Unchanged |
| Verdad Advisers, LP | 80,297 | $326.8K | 0.31% | +80,297 | New |
| Morgan Stanley | 72,326 | $294.4K | 0.00% | +33,982+88.6% | Added |
| Vanguard Fiduciary Trust Co | 66,179 | $269.3K | 0.00% | +29,462+80.2% | Added |
| BlackRock, Inc. | 54,442 | $221.6K | 0.00% | +18,399+51.0% | Added |
| Belpointe Asset Management LLC | 40,000 | $162.8K | 0.01% | 00.0% | Unchanged |
| Fortis Capital Advisors, LLC | 40,000 | $162.8K | 0.02% | 00.0% | Unchanged |
| Pale Fire Capital SE | 39,626 | $161.3K | 0.01% | +39,626 | New |
| Squarepoint Ops LLC | 38,775 | $157.8K | 0.00% | −998−2.5% | Reduced |
| Bridgeway Capital Management, LLC | 32,500 | $132.3K | 0.00% | +10,000+44.4% | Added |
| Stonepine Capital Management, LLC | 30,122 | $122.6K | 0.09% | +9,722+47.7% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 30,007 | $122.1K | 0.00% | +16,352+119.8% | Added |
| Trexquant Investment LP | 29,737 | $121.0K | 0.00% | +29,737 | New |
| State Street Corp | 26,510 | $107.9K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 25,839 | $105.2K | 0.00% | +11,390+78.8% | Added |
| Velan Capital Investment Management LP | 25,000 | $101.8K | 0.06% | +7,000+38.9% | Added |
| Two Sigma Investments, LP | 23,847 | $97.1K | 0.00% | −6,803−22.2% | Reduced |
| WealthTrust Asset Management, LLC | 20,416 | $83.1K | 0.04% | +8,000+64.4% | Added |
| Independent Advisor Alliance | 18,125 | $73.8K | 0.00% | +3,895+27.4% | Added |
| RBF Capital, LLC | 17,391 | $70.8K | 0.00% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 16,527 | $67.3K | 0.00% | +16,527 | New |
| Goldman Sachs Group Inc | 16,054 | $65.3K | 0.00% | −94,449−85.5% | Reduced |
| Dimensional Fund Advisors LP | 15,958 | $65.0K | 0.00% | +15,958 | New |
| Susquehanna International Group, LLP | 14,221 | $57.9K | 0.00% | −38,463−73.0% | Reduced |
| HRT Financial LP | 13,723 | $55.0K | 0.00% | +2,106+18.1% | Added |
| Nano Cap New Millennium Growth Fund L P | 12,500 | $50.9K | 0.04% | +8,500+212.5% | Added |
| Virtu Financial LLC | 10,845 | $44.0K | 0.00% | +10,845 | New |
| Sigma Planning Corp | 10,167 | $41.4K | 0.00% | +10,167 | New |
| FMR LLC | 7,806 | $31.8K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,560 | $10.4K | 0.00% | +2,421+1,741.7% | Added |
| Steward Partners Investment Advisory, LLC | 2,215 | $9.02K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 725 | $2.95K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 303 | $1.23K | 0.00% | −4,977−94.3% | Reduced |
| Strengthening Families & Communities, LLC | 268 | $1.09K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 52 | $212 | 0.00% | −600−92.0% | Reduced |
| JPMorgan Chase & Co | 50 | $211 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 49 | $199 | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 13 | $53 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 7 | $28 | 0.00% | +7 | New |
| SBI Securities Co., Ltd. | 5 | $20 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 12 | $0 | 0.00% | −91−88.3% | Reduced |
| Paradigm Biocapital Advisors LP | 0 | $0 | 0.00% | −700,000−100.0% | Sold out |
| Propel Bio Management, LLC | 0 | $0 | 0.00% | −295,771−100.0% | Sold out |
| Kalehua Capital Management LLC | 0 | $0 | 0.00% | −271,170−100.0% | Sold out |
| Simplify Asset Management Inc. | 0 | $0 | 0.00% | −87,426−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −59,534−100.0% | Sold out |
| 683 Capital Management, LLC | 0 | $0 | 0.00% | −45,000−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −11,103−100.0% | Sold out |
| Johnson Financial Group, Inc. | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −8,703−100.0% | Sold out |
| Fortitude Family Office, LLC | 0 | $0 | 0.00% | −114−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −34−100.0% | Sold out |