Cartesian Therapeutics Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGM:RNAC Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
06 Jan 26	SellUS$24,367	Milos Miljkovic	Individual	3,573	US$6.82
06 Jan 26	SellUS$72,227	Blaine Davis	Individual	10,591	US$6.82
06 Jan 26	SellUS$162,077	Carsten Brunn	Individual	23,766	US$6.82
04 Dec 25	BuyUS$205,797	Timothy Barabe	Individual	30,000	US$6.86
11 Apr 25	BuyUS$1,522,517	Timothy Springer	Individual	149,075	US$10.92
20 Mar 25	BuyUS$1,371,154	Timothy Springer	Individual	89,863	US$15.59

Insider Trading Volume

Insider Buying: RNAC insiders have sold more shares than they have bought in the past 3 months.

Ownership Breakdown

What is the ownership structure of RNAC?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	1,431,390	5.5%
General Public	3,619,581	13.9%
Institutions	5,667,407	21.8%
Individual Insiders	15,285,228	58.8%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 82.95% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
37%	Timothy Springer	9,628,915	US$67.2m	0.05%	no data
19.5%	Murat Kalayoglu	5,062,259	US$35.3m	0.09%	no data
5.26%	FMR LLC	1,366,989	US$9.5m	-36.6%	no data
4.03%	Schooner Century Fund Llc	1,047,594	US$7.3m	0%	no data
2.34%	BlackRock, Inc.	609,696	US$4.3m	-6.11%	no data
2.08%	The Vanguard Group, Inc.	541,228	US$3.8m	3.94%	no data
1.6%	HBM Partners Ltd.	415,234	US$2.9m	0%	0.26%
1.48%	Thirsty Brook 2010 Irrevocable Trust	383,796	US$2.7m	0%	no data
1.08%	683 Capital Management, LLC	280,000	US$2.0m	21.7%	0.17%
1.04%	Erste Asset Management GmbH	271,705	US$1.9m	4.5%	0.01%
0.98%	Geode Capital Management, LLC	255,539	US$1.8m	5.67%	no data
0.94%	Michael Singer	243,993	US$1.7m	1.91%	no data
0.77%	State Street Global Advisors, Inc.	198,967	US$1.4m	0.66%	no data
0.69%	Marshall Wace LLP	178,140	US$1.2m	110%	no data
0.66%	Privium Fund Management BV	172,500	US$1.2m	0%	0.16%
0.63%	Millennium Management LLC	164,366	US$1.1m	548%	no data
0.43%	Bank of America Corporation	113,092	US$789.4k	704%	no data
0.37%	Jacobs Levy Equity Management Inc	95,799	US$668.7k	219%	no data
0.35%	Two Sigma Investments, LP	91,278	US$637.1k	0%	no data
0.33%	Northern Trust Global Investments	87,013	US$607.4k	-4.68%	no data
0.31%	Citadel Advisors LLC	79,785	US$556.9k	13.1%	no data
0.3%	Baharak Asefzadeh	78,634	US$548.9k	0%	no data
0.3%	GSA Capital Partners LLP	77,227	US$539.1k	-10.3%	0.05%
0.26%	UBS Asset Management AG	67,857	US$473.6k	582%	no data
0.23%	Carsten Brunn	59,637	US$416.3k	97.2%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/02/24 01:01
End of Day Share Price	2026/02/24 00:00
Earnings	2025/09/30
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Cartesian Therapeutics, Inc. is covered by 10 analysts. 9 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Julian Harrison	BTIG
John Newman	Canaccord Genuity
Kristen Kluska	Cantor Fitzgerald & Co.