Insider plans sale of 1,510 common shares

RNAC filed a Rule 144 notice for an insider stock sale.

Rhea-AI Filing Summary

RNAC filed a Rule 144 notice for an insider stock sale. Christopher M. Jewell plans to sell 1,510 shares of RNAC common stock through Morgan Stanley Smith Barney on or about 01/09/2026 on the NASDAQ market. The planned sale has an aggregate market value of $12,105.37, based on the price at the time of the notice, and is against a backdrop of 26,003,606 common shares outstanding.

The 1,510 shares to be sold were acquired on 01/02/2026 through the vesting of restricted stock under a registered plan, in exchange for services rendered to the company. The notice also reports that Jewell previously sold 17,935 common shares on 11/19/2025, generating gross proceeds of $129,587.55.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does RNAC's latest Form 144 filing disclose?

The Form 144 notice discloses that Christopher M. Jewell plans to sell 1,510 RNAC common shares on or about 01/09/2026 on the NASDAQ, with an estimated market value of $12,105.37.

How many RNAC shares is the insider planning to sell under Rule 144?

The insider plans to sell 1,510 RNAC common shares, to be executed through Morgan Stanley Smith Barney LLC on the NASDAQ exchange.

How were the RNAC shares in the Form 144 acquired?

The 1,510 RNAC shares were acquired on 01/02/2026 through restricted stock vesting under a registered plan, as compensation for services rendered to the issuer.

What prior RNAC share sales by this insider are reported?

The notice reports that Christopher M. Jewell sold 17,935 RNAC common shares on 11/19/2025, with $129,587.55 in gross proceeds over the past three months.

How many RNAC shares are outstanding according to this notice?

The filing states that RNAC has 26,003,606 common shares outstanding, providing context for the size of the planned 1,510-share sale.

Which broker will handle the RNAC Form 144 share sale?

The planned sale of 1,510 RNAC common shares will be handled by Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York, NY.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 01/09/2026 - 04:35 PM EST Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002000226
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	CARTESIAN THERAPEUTICS, INC
SEC File Number	001-37798
Address of Issuer	7495 NEW HORIZON WAY FREDERICK MARYLAND 21703
Phone	301-348-8698
Name of Person for Whose Account the Securities are To Be Sold	CHRISTOPHER M JEWELL
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Former Affiliate

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1510	12105.37	26003606	01/09/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	01/02/2026	Restricted stock vesting under a registered plan	Issuer			1510	01/02/2026	Services Rendered

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
CHRISTOPHER M JEWELL 7495 NEW HORIZON WAY FREDERICK MD 21703	Common	11/19/2025	17935	129587.55

144: Remarks and Signature

Remarks
Date of Notice	01/09/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Christopher Jewell
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)