Who Owns Kalaris Therapeutics Inc (KLRS)?Hedge Fund & Institutional Holders
Institutional Holders
50
as of Q4 2025
Total Institutional Value
$1.0928110972590838e+88T
% of Float Held
—
QoQ Change in Holders
+14 / -3
Price History
KLRS — Biggest New Institutional Buyers This Quarter
| Fund | Action | Shares Added | Value Added |
|---|---|---|---|
| RTW INVESTMENTS, LP | New Position | +1.3M | +$11.0M |
| Paradigm Biocapital Advisors LP | New Position | +700K | +$5.9M |
| Ikarian Capital, LLC | New Position | +360K | +$3.0M |
| Alyeska Investment Group, L.P. | New Position | +404K | +$3.0M |
| Kalehua Capital Management LLC | New Position | +140K | +$1.2M |
| ADAR1 Capital Management, LLC | New Position | +100K | +$844K |
| WHI TRUST Co LLC | New Position | +97K | +$822K |
| 683 Capital Management, LLC | New Position | +81K | +$680K |
| Propel Bio Management, LLC | New Position | +42K | +$354K |
| Belpointe Asset Management LLC | New Position | +40K | +$337K |
| Fortis Capital Advisors, LLC | New Position | +40K | +$337K |
| Simplify Asset Management Inc. | New Position | +20K | +$169K |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | New Position | +4K | +$33K |
| ROYAL BANK OF CANADA | Increased | +28 | +$0 |
| OMERS ADMINISTRATION Corp | New Position | +30K | +$0 |
KLRS — Institutions Reducing or Closing Positions
| Fund | Action | Shares Sold | Value Sold |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | Closed Position | -418K | -$2.4B |
| Woodline Partners LP | Decreased | -141K | -$1.4B |
| RENAISSANCE TECHNOLOGIES LLC | Decreased | -25K | -$651.7M |
| BlackRock, Inc. | Decreased | -2K | -$233.4M |
| Squarepoint Ops LLC | Decreased | -15K | -$232.2M |
| MILLENNIUM MANAGEMENT LLC | Closed Position | -25K | -$144.1M |
| UBS Group AG | Decreased | -3K | -$30.3M |
| BNP PARIBAS FINANCIAL MARKETS | Decreased | -89 | -$815K |
| Farther Finance Advisors, LLC | Closed Position | -33 | -$191K |
Top Institutional Holders(Q4 2025)
KLRS Institutional Ownership History
| Quarter | Holders | Total Value | Change |
|---|---|---|---|
| Q4 2025 | 51 | $143.9M | +24 |
| Q3 2025 | 27 | $76.0B | +2 |
| Q2 2025 | 25 | $34.0B | -7 |
| Q1 2025 | 32 | $124.1B | — |
Similar Stocks by Institutional Ownership
As of Q4 2025, 50 institutional investors hold KLRS (Kalaris Therapeutics Inc). The largest holder is Samsara BioCapital, LLC with $109.3M in shares. This quarter, 14 institutions opened new positions and 3 closed their positions.
Frequently Asked Questions
How many hedge funds own KLRS?
As of Q4 2025, 50 institutional investors report holding KLRS (Kalaris Therapeutics Inc) in their 13F filings.
Who is the largest institutional holder of KLRS?
The largest institutional holder of KLRS is Samsara BioCapital, LLC with $109.3M in shares.
Is institutional ownership of KLRS increasing or decreasing?
This quarter, 14 institutions opened new positions in KLRS and 3 closed their positions.