KLRS — Kalaris Therapeutics Inc Institutional Holders · Q2 2026

Name: Who Owns KLRS? 65 Institutions Hold $73.4M (Q2 2026)
Creator: ko.io

Who owns Kalaris Therapeutics Inc (KLRS)? 65 institutions reported holding $73.39M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Samsara Biocapital, LLC ($52.4M), Rtw Investments, LP ($5.3M), Alyeska Investment Group, L.P. ($2.3M).

Rank	Institution	Value	Shares	Change
1	SAMSARA BIOCAPITAL, LLC	$52.4M	12.9M	Trimmed
2	RTW INVESTMENTS, LP	$5.3M	1.3M	Hold
3	Alyeska Investment Group, L.P.	$2.3M	572,687	Hold
4	VANGUARD GROUP INC	$1.9M	465,616	Added
5	Siren, L.L.C.	$1.8M	435,798	Hold
6	Ikarian Capital, LLC	$1.5M	360,000	Hold
7	UBS Group AG	$1.1M	262,131	Added
8	RENAISSANCE TECHNOLOGIES LLC	$607,859	149,351	Added
9	MARSHALL WACE, LLP	$566,549	139,201	Added
10	GEODE CAPITAL MANAGEMENT, LLC	$464,287	114,037	Added
11	Woodline Partners LP	$407,000	100,000	Hold
12	ADAR1 Capital Management, LLC	$407,000	100,000	Hold
13	WHI TRUST Co LLC	$396,797	97,493	Hold
14	RAYMOND JAMES FINANCIAL INC	$395,457	97,164	Trimmed
15	CITADEL ADVISORS LLC	$389,792	95,772	New
16	BOOTHBAY FUND MANAGEMENT, LLC	$375,502	92,261	Hold
17	Verdad Advisers, LP	$326,809	80,297	New
18	MORGAN STANLEY	$294,367	72,326	Added
19	BlackRock, Inc.	$221,580	54,442	Added
20	Belpointe Asset Management LLC	$162,800	40,000	Hold
21	Fortis Capital Advisors, LLC	$162,800	40,000	Hold
22	Pale Fire Capital SE	$161,278	39,626	New
23	Squarepoint Ops LLC	$157,814	38,775	Trimmed
24	BRIDGEWAY CAPITAL MANAGEMENT, LLC	$132,275	32,500	Added
25	Stonepine Capital Management, LLC	$122,597	30,122	Added

Source: SEC Form 13F filings · as of 2026-06-30