Companies / Kalaris Therapeutics, Inc.

Kalaris Therapeutics, Inc.

Nasdaq: KLRSCIK 1754068BERKELEY HEIGHTS, NJ
Insider flow · last 90 daysNet buys $1.18M

Financials · FY2020

Revenue$165.0K
Net income$-43.44M
Total debt—
Cash$43.17M
Diluted EPS$-2.85
Shares outstanding23.8M

Ownership

23.8M shares outstanding · as of Aug 4, 2026
54.3%Insiders
Ownership
Insiders54.26%12,915,520
Institutions75.96%18,081,301
Public float0.00%0

Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 11

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Insider% of sharesShares
Akkaraju SrinivasDirector · 10% owner
54.26%12,915,520
Hagen Brett RChief Accounting Officer
0.00%0
Adamis Anthony PDirector
——
Feinsod MatthewChief Medical Officer
——
Gall MatthewChief Financial Officer
——
Oxtoby AndrewSee Remarks · Director
——
Patterson Leone DDirector
——
Samsara BioCapital GP, LLC10% owner
——
Samsara BioCapital, L.P.10% owner
——
Samsara Opportunity Fund GP, LLC10% owner
——

Institutional holders 55

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HolderValue% of shares
Samsara BioCapital, LLC$109.28M54.39%
RTW Investments, LP$10.97M5.46%
Paradigm BioCapital Advisors LP$5.91M2.94%
Siren, L.L.C.$3.68M1.83%
Alyeska Investment Group, L.P.$3.40M1.70%
Ikarian Capital, LLC$3.04M1.51%
Vanguard Group Inc$2.47M1.23%
Kalehua Capital Management LLC$1.18M0.59%
Woodline Partners LP$844.0K0.42%
ADAR1 Capital Management, LLC$844.0K0.42%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Dec 18, 2025Akkaraju Srinivas
Director
BuyCommon Stock$5.00M+480K
+31.99%
1,979,847
8.32% of shares
high
May 20, 2026Akkaraju Srinivas
Director
BuyCommon Stock$1.18M+244K
+12.34%
2,224,147
9.34% of shares
high
Mar 20, 2026Hagen Brett R
Executive
SellCommon Stock$12.9K-2K
-100.00%
0
0.00% of shares
low
May 20, 2026Akkaraju Srinivas
Director
OtherCommon Stock$0+4K
+29.93%
19,408
0.08% of shares
low
May 20, 2026Akkaraju Srinivas
Director
OtherCommon Stock$0+15K
14,937
0.06% of shares
low
May 20, 2026Akkaraju Srinivas
Director
OtherCommon Stock$0-67K
-0.62%
10,657,028
44.77% of shares
low
Jun 3, 2026Adamis Anthony P
Director
GrantStock Option (Right to Buy)—+9K
9,000
0.04% of shares
low
Jun 3, 2026Akkaraju Srinivas
Director
GrantStock Option (Right to Buy)—+9K
9,000
0.04% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
RTW Investments, LPPassive13G———

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
KLRSCommon StockEquity482929106BBG00P80SH34