Christopher Gibson plans new RXRX Class A sale after repeated 40,000-share trades

Rhea-AI Filing Summary

A holder of Class A shares has filed a notice to sell 40,000 shares through Fidelity Brokerage Services LLC on the NASDAQ, with an aggregate market value of $164,800.00. The shares were originally acquired on 09/01/2016 as founders’ shares from the issuer as compensation.

Over the prior three months, the same seller, identified as Christopher C. Gibson, reported six separate sales of 40,000 Class A shares each, between 11/04/2025 and 01/20/2026, at disclosed gross proceeds ranging from $166,400.00 to $208,400.00. By signing, the seller represents they do not know of undisclosed material adverse information about the issuer.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	40000	164800.00	514895802	02/04/2026	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 *
Class A	09/01/2016	Founders Shares	Issuer			40000	09/01/2016	Compensation

* 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 C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	11/04/2025	40000	208400.00
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	11/19/2025	40000	166400.00
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	12/04/2025	40000	185200.00
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	12/19/2025	40000	180000.00
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	01/05/2026	40000	170000.00
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	01/20/2026	40000	178800.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does this Form 144 filing disclose for RXRX?

It discloses an intended sale of 40,000 Class A shares through Fidelity on NASDAQ. The shares were originally acquired as founders’ shares in 2016 as compensation from the issuer, and this notice is required before the planned sale.

How many RXRX Class A shares are planned to be sold under this notice?

The notice covers a planned sale of 40,000 Class A shares. These shares have an aggregate market value listed as $164,800.00 and are to be sold on the NASDAQ through Fidelity Brokerage Services LLC as the broker.

What prior RXRX share sales by Christopher C. Gibson are reported?

The document lists six prior sales of 40,000 Class A shares each by Christopher C. Gibson. These occurred between November 4, 2025 and January 20, 2026, with individual gross proceeds ranging from $166,400.00 to $208,400.00 per transaction.

When were the RXRX shares being sold originally acquired and how?

The 40,000 Class A shares to be sold were acquired on September 1, 2016. They are described as founders’ shares obtained from the issuer, with the nature of payment indicated as compensation on that same date.

What representation does the seller make about RXRX in this notice?

By signing the notice, the seller represents they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed, as required for sales relying on Rule 144 provisions.