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Disclosery

KLRS KALARIS THERAPEUTICS INC

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COM (common), issuer CIK 1754068

31 managers (31 13F filers) reported a position in KLRS shares at 2025-06-30, 13,362,353 shares in all. 4 filers opened a position and 6 filers sold out during the quarter.

Managers
31
13F filers
31
New
4
Added
9
Reduced
7
Sold out
6
Shares held by filers
13,362,353

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
SAMSARA BIOCAPITAL, LLC11,448,081$30.6M6.25%013F-HRTimeline
TANG CAPITAL MANAGEMENT LLCin group TANG CAPITAL MANAGEMENT LLC360,859$963K0.05%+51,63813F-HRTimelineGroup
Octagon Capital Advisors LP360,000$961K0.21%-121,00013F-HRTimeline
GILEAD SCIENCES, INC.in group GILEAD SCIENCES, INC.317,789$848K0.07%-405,48413F-HRTimelineGroup
Siren, L.L.C.in group Siren, L.L.C.282,586$755K0.04%013F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC129,839$347K<0.01%+14,75313F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC96,751$258K<0.01%+77,50013F-HRTimeline
Redmile Group, LLCin group Redmile Group, LLC82,955$221K0.02%013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC59,095$158K<0.01%+44,50813F-HR/ATimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC54,092$144K<0.01%+37,51013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.38,156$102K<0.01%+10,64213F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC25,476$68K<0.01%-1,31113F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd24,234$64.7K<0.01%new13F-HRTimelineGroup
TWO SIGMA ADVISERS, LPin group TWO SIGMA INVESTMENTS, LP20,281$54.1K<0.01%-1,30013F-HRTimelineGroup
RBF Capital, LLC17,391$46.4K<0.01%013F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP14,115$37.7K<0.01%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP10,710$28.6K<0.01%013F-HRTimelineGroup
FMR LLCin group FMR LLC7,806$20.8K<0.01%013F-HRTimelineGroup
UBS Group AGin group UBS Group AG4,116$11K<0.01%-5,14513F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC2,629$7.02K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,153$5.75K<0.01%+71913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY1,964$5.24K<0.01%+66813F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.634$1.69K<0.01%013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/273$729<0.01%-5,15113F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS141$376<0.01%+1413F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO50$134<0.01%-24513F-HRTimelineGroup
Parallel Advisors, LLC49$131<0.01%013F-HRTimeline
Farther Finance Advisors, LLC33$88<0.01%013F-HRTimeline
SBI Securities Co., Ltd.10$27<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA85$00%new13F-HR/ATimelineGroupValue filed as zero, left out of ratios.
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.