13F

Stock

Kalaris Therapeutics, Inc.

KLRS · held by 58 managers

Reported value

$107.1M

Holders

58

+12 new · −6 exited

Holders’ est. mark

−$46.6M

Price effect on 43 books still in the name

Largest holder

$74.7M

SAMSARA BIOCAPITAL, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
SAMSARA BIOCAPITAL, LLC12.9M$74.7M−$34.6MCut−$34.6M
RTW INVESTMENTS, LP1.3M$7.5M−$3.47MCut−$3.47M
Paradigm Biocapital Advisors LP700K$4.04M−$1.87MCut−$1.87M
Alyeska Investment Group, L.P.572.7K$3.27M−$1.09MCut−$127.4K
Siren, L.L.C.435.8K$2.51M−$1.16MCut−$1.16M
Ikarian Capital, LLC360K$2.08M−$961.2KCut−$961.2K
Propel Bio Management, LLC295.8K$1.72M−$110.2KAdded$1.37M
VANGUARD CAPITAL MANAGEMENT LLC255.3K$1.47MHeld
Kalehua Capital Management LLC135.6K$782.3K−$362KCut−$398.4K
RAYMOND JAMES FINANCIAL INC118.9K$686K−$236.1KCut−$60.4K
GOLDMAN SACHS GROUP INC110.5K$637.6K−$91.6KAdded$348.1K
Woodline Partners LP100K$577K−$267KCut−$267K
ADAR1 Capital Management, LLC100K$577K−$267KCut−$267K
WHI TRUST Co LLC97.5K$562.5K−$260.3KCut−$260.3K
BOOTHBAY FUND MANAGEMENT, LLC92.3K$532.3K−$246.3KCut−$246.3K
GEODE CAPITAL MANAGEMENT, LLC87.5K$505.3K−$220.5KCut−$192.3K
Simplify Asset Management Inc.87.4K$504.4K−$53.6KAdded$335K
MARSHALL WACE, LLP67.9K$391.7K−$181.2KCut−$223.4K
Renaissance Technologies66.2K$381.7K−$176.6KCut−$358.9K
MILLENNIUM MANAGEMENT LLC59.5K$343.5KNew
SUSQUEHANNA INTERNATIONAL GROUP, LLP52.7K$304K−$34.3KAdded$195.5K
683 Capital Management, LLC45K$259.6K−$120.2KCut−$420.5K
Belpointe Asset Management LLC40K$230.8K−$106.8KCut−$106.8K
Fortis Capital Advisors, LLC40K$230.8K−$106.8KCut−$106.8K
Squarepoint Ops LLC39.8K$229.5K−$67.7KAdded$15.4K
MORGAN STANLEY38.3K$221.2K−$74.6KCut−$14.6K
VANGUARD FIDUCIARY TRUST CO36.7K$211.9KHeld
BlackRock, Inc.36K$208K−$96.2KCut−$116.6K
TWO SIGMA INVESTMENTS, LP30.6K$176.8K−$74.1KCut−$57.4K
State Street26.5K$153K−$67.8KCut−$61.5K
BRIDGEWAY CAPITAL MANAGEMENT, LLC22.5K$129.8K−$60.1KCut−$60.1K
Stonepine Capital Management, LLC20.4K$117.7KNew
Velan Capital Investment Management LP18K$103.9KNew
RBF Capital, LLC17.4K$100.3K−$46.4KCut−$46.4K
NORTHERN TRUST CORP14.4K$83.4K−$36.5KCut−$31.9K
Independent Advisor Alliance14.2K$82.1KNew
Connor, Clark & Lunn Investment Management Ltd.13.7K$78.8K−$27.1KCut−$6.95K
WealthTrust Asset Management, LLC12.4K$71.6KNew
Qube Research & Technologies Ltd11.1K$64.1KNew
Johnson Financial Group, Inc.10K$57.7K−$26.7KCut−$26.7K
CITIGROUP INC8.7K$50.2K−$2Added$50.2K
Fidelity7.81K$45K−$20.8KCut−$20.8K
UBS Group AG6.18K$35.7K−$7.18KAdded$13K
BARCLAYS PLC5.28K$30.5K−$14.1KCut−$20.7K
NANO CAP NEW MILLENNIUM GROWTH FUND L P4K$23.1K−$10.7KCut−$10.7K
Steward Partners Investment Advisory, LLC2.21K$12.8KNew
Vanguard Global Advisers, LLC725$4.18KHeld
BNP PARIBAS FINANCIAL MARKETS652$3.76K−$139Added$3.32K
Strengthening Families & Communities, LLC268$1.55KNew
ROYAL BANK OF CANADA103$1K$88Held
Tower Research Capital LLC (TRC)139$802New
Fortitude Family Office, LLC114$658−$304Cut−$304
Parallel Advisors, LLC49$283−$131Cut−$131
JPMORGAN CHASE & CO50$265−$157Cut−$157
FEDERATED HERMES, INC.34$196New
HARBOUR INVESTMENTS, INC.13$75New
HRT FINANCIAL LP11.6K$67New
SBI Securities Co., Ltd.5$29−$13Cut−$13

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.