Company · Ownership research

Cartesian Therapeutics, Inc. RNAC

CIK 0001453687 · CUSIP 816212302

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 816212302 (RNAC), not CUSIP 816212902 (RNAC), and does not merge CUSIPs.

This page lists the top 20 of 94 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Squarepoint Ops LLC CIK 1642575 · View history	$23.49M 2,254,619 shares	0.05%	+16.13K(+0.70%)Added	SEC filing ↗ Aug 14, 2026	▾
02	BlackRock, Inc. CIK 2012383 · View history	$8.54M 819,239 shares	0.00%	+220.13K(+36.70%)Added	SEC filing ↗ Aug 7, 2026	▾
03	683 Capital Management, LLC CIK 1404574 · View history	$6.77M 650,000 shares	0.62%	+320.00K(+97.00%)Added	SEC filing ↗ Aug 14, 2026	▾
04	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · View history	$5.79M 555,823 shares	0.00%	+148.23K(+36.40%)Added	SEC filing ↗ Aug 13, 2026	▾
05	FMR LLC CIK 315066 · View history	$3.84M 368,429 shares	0.00%	-431.31K(-53.90%)Reduced	SEC filing ↗ Aug 13, 2026	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$3.72M 356,525 shares	0.00%	+92.83K(+35.20%)Added	SEC filing ↗ Aug 12, 2026	▾
07	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$3.71M 356,456 shares	0.00%	+272.44K(+324.30%)Added	SEC filing ↗ Aug 14, 2026	▾
08	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$3.23M 309,887 shares	0.00%	+25.57K(+9.00%)Added	SEC filing ↗ Aug 14, 2026	▾
09	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$3.09M 296,293 shares	0.00%	+128.98K(+77.10%)Added	SEC filing ↗ Aug 14, 2026	▾
10	STATE STREET CORP CIK 93751 · Amended · View history	$2.60M 249,212 shares	0.00%	+48.88K(+24.40%)Added	SEC filing ↗ Sep 22, 2026	▾
11	MARSHALL WACE, LLP CIK 1318757 · View history	$2.43M 232,919 shares	0.00%	-18.20K(-7.20%)Reduced	SEC filing ↗ Aug 13, 2026	▾
12	UBS Group AG CIK 1610520 · View history	$2.17M 208,647 shares	0.00%	+71.81K(+52.50%)Added	SEC filing ↗ Aug 13, 2026	▾
13	Jupiter Topco LLC CIK 2146052 · View history	$2.09M 200,905 shares	0.00%	—	SEC filing ↗ Aug 14, 2026	▾
14	Privium Fund Management B.V. CIK 1795097 · View history	$1.58M 151,675 shares	0.29%	-27.44K(-15.30%)Reduced	SEC filing ↗ Aug 7, 2026	▾
15	NORTHERN TRUST CORP CIK 73124 · View history	$1.10M 105,698 shares	0.00%	+13.71K(+14.90%)Added	SEC filing ↗ Aug 13, 2026	▾
16	ADAR1 Capital Management, LLC CIK 1940272 · View history	$1.03M 98,877 shares	0.05%	+98.88KNew	SEC filing ↗ Aug 14, 2026	▾
17	VANGUARD FIDUCIARY TRUST CO CIK 933478 · View history	$957.12K 91,854 shares	0.00%	+21.56K(+30.70%)Added	SEC filing ↗ Aug 13, 2026	▾
18	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · View history	$909.84K 87,317 shares	0.00%	+26.73K(+44.10%)Added	SEC filing ↗ Aug 13, 2026	▾
19	DIADEMA PARTNERS LP CIK 2026172 · View history	$907.13K 87,057 shares	0.32%	+87.06KNew	SEC filing ↗ Aug 14, 2026	▾
20	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$881.78K 84,624 shares	0.00%	+84.62KNew	SEC filing ↗ Aug 14, 2026	▾

Showing 20 / 94 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

8,684,180

Not deduplicated across managers

Disclosed value

$90.36M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Cartesian Therapeutics, Inc. · Q2 2026

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.