13F Insight
DOSSIER · 13F Holders · Q1 2026
RNAC

CARTESIAN THERAPEUTICS INC

86 institutions still hold CARTESIAN THERAPEUTICS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 816212302·86 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$41M
visible holders
Holders
86
filers reporting
Concentration
33.94%
Squarepoint Ops LLC #1
top holder share
AI Holders Summary · Q1 2026

86 institutions reported RNAC in Q1 2026. Squarepoint Ops LLC leads at 33.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Squarepoint Ops LLC
CIK 0001642575
$14M2.2M0.02%Q1 202602
FMR LLC
CIK 0000315066
$5M800K0.00%Q1 202603
BlackRock, Inc.
CIK 0002012383
$4M599K0.00%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$3M408K0.00%Q1 202605
683 Capital Management, LLC
CIK 0001404574
$2M280K0.09%Q4 202506
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$2M284K0.00%Q1 202607
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$2M264K0.00%Q1 202608
Erste Asset Management GmbH
CIK 0002024532
$1M222K0.01%Q1 202609
MARSHALL WACE, LLP
CIK 0001318757
$1M178K0.00%Q4 202510
STATE STREET CORP
CIK 0000093751
$1M200K0.00%Q1 202611
Privium Fund Management B.V.
CIK 0001795097
$1M179K0.23%Q1 202612
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$1M167K0.00%Q1 202613
UBS Group AG
CIK 0001610520
$842K137K0.00%Q1 202614
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 0000884414
$624K102K0.00%Q1 202615
CITADEL ADVISORS LLC
CIK 0001423053
$575K80K0.00%Q4 202516
NORTHERN TRUST CORP
CIK 0000073124· Index
$566K92K0.00%Q1 202617
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$517K84K0.00%Q1 202618
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$432K70K0.00%Q1 202619
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$414K67K0.00%Q1 202620
Vanguard Portfolio Management
CIK 0002100121· Index
$373K61K0.00%Q1 2026
Page 1 of 5
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Insiders at CARTESIAN THERAPEUTICS INC
Kalayoglu Murat →Davis Blaine →Miljkovic Milos →Brunn Carsten →Bot Adrian Ion →Barabe Timothy C →English Emily →Singer Michael →