Kalaris Therapeutics KLRS Institutional Ownership

NASDAQ KLRS
$4.12 -0.05 (-1.20%)
At close: Aug 20, 2026 · 4:00 PM EDT

Institutions by Trading Activity

Ownership Statistics

23,723,618Shares Outstanding
18,596,162Shares held by institutions
$74,942,537Value of institutional holdings
78.39%Institutional ownership %
5.24%Shares Changed QoQ
58No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Kalaris Therapeutics, Inc. (NASDAQ:KLRS) is held by 58 institutional investors per 13F filings through March 2026.

58 Institutional Holders

18,596,162 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
Samsara BioCapital, LLC 31 Mar, 2026 12,948,081 0 0.00% $74,710,427.00
RTW INVESTMENTS, LP 31 Mar, 2026 1,300,000 0 0.00% $7,501,000.00
Paradigm Biocapital Advisors LP 31 Mar, 2026 700,000 0 0.00% $4,039,000.00
Alyeska Investment Group, L.P. 31 Mar, 2026 572,687 169,136 41.91% $3,274,750.00
Siren, L.L.C. 31 Mar, 2026 435,798 0 0.00% $2,514,554.00
Ikarian Capital, LLC 31 Mar, 2026 360,000 0 0.00% $2,077,200.00
Propel Bio Management, LLC 31 Mar, 2026 295,771 253,718 603.33% $1,721,024.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 255,348 255,348 0.00% $1,473,358.00
Kalehua Capital Management LLC 31 Mar, 2026 135,585 -4,316 -3.09% $782,325.00
Raymond James Financial Inc 31 Mar, 2026 118,887 30,451 34.43% $685,978.00
Goldman Sachs Group Inc 31 Mar, 2026 110,503 41,897 61.07% $637,602.00
Woodline Partners LP 31 Mar, 2026 100,000 0 0.00% $577,000.00
ADAR1 Capital Management, LLC 31 Mar, 2026 100,000 -100,000 -50.00% $577,000.00
WHI TRUST Co LLC 31 Mar, 2026 97,493 0 0.00% $562,535.00
BOOTHBAY FUND MANAGEMENT, LLC 31 Mar, 2026 92,261 0 0.00% $532,346.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 87,545 4,898 5.93% $505,341.00
Simplify Asset Management Inc. 31 Mar, 2026 87,426 67,352 335.52% $504,448.00
MARSHALL WACE, LLP 31 Mar, 2026 67,879 -4,997 -6.86% $391,662.00
RENAISSANCE TECHNOLOGIES LLC 31 Mar, 2026 66,151 -21,600 -24.62% $381,691.00
MILLENNIUM MANAGEMENT LLC 31 Mar, 2026 59,534 59,534 0.00% $343,511.00