Christopher Sullivan to sell 18,606 shares (NASDAQ: AVTX) after option exercise

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice reporting the proposed sale related to an exercise of stock options of 18,606 shares of Common stock on 05/07/2026 for cash. The filing also lists recent 10b5-1 sales by Christopher Sullivan totaling multiple transactions in April–May 2026, including a 47,000-share sale on 05/06/2026.

Insights

Securities Compliance Counsel

Rule 144 notice for option exercise and prior 10b5-1 executions; standard disclosure practice.

The filing lists an exercise of stock options that results in 18,606 shares being presented for sale on 05/07/2026 and records several recent 10b5-1 sales by Christopher Sullivan. The entries show dates, share counts, and gross proceeds for each transaction.

These entries are procedural: they notify the market of proposed sales under Rule 144 and document prior automatic sales under a 10b5-1 plan. Subsequent transaction settlement and Rule 144 eligibility depend on standard transfer and holding-period conditions; timing and final proceeds are not detailed here.

Key Figures

Proposed shares presented for sale: 18,606 shares Proceeds shown (associated line item): $405,796.86 10b5-1 sale example: 47,000 shares +2 more

5 metrics

Proposed shares presented for sale 18,606 shares exercise of stock options on 05/07/2026

Proceeds shown (associated line item) $405,796.86 listed on same line as 18,606 shares (05/07/2026)

10b5-1 sale example 47,000 shares 10b5-1 sale on 05/06/2026 with proceeds $948,723.20

10b5-1 sale example 8,457 shares 10b5-1 sale on 04/30/2026 with proceeds $111,853.13

10b5-1 sale example 7,980 shares 10b5-1 sale on 04/02/2026 with proceeds $136,822.69

Key Terms

Form 144, 10b5-1 Sales, Exercise of Stock Options, Issuer

4 terms

Form 144 regulatory

"submitted a Form 144 notice reporting the proposed sale"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

10b5-1 Sales regulatory

"10b5-1 Sales for CHRISTOPHER SULLIVAN"

Exercise of Stock Options financial

"Exercise of Stock Options | Issuer | Cash"

Issuer regulatory

"Exercise of Stock Options | Issuer | Cash"

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
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	18606	405796.86	22788452	05/07/2026	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	05/07/2026	Exercise of Stock Options	Issuer			18606	05/07/2026	Cash

* 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
10b5-1 Sales for CHRISTOPHER SULLIVAN 1500 Liberty Ridge Drive, Suite 321 Wayne PA 19087	Common	05/06/2026	47000	948723.20
10b5-1 Sales for CHRISTOPHER SULLIVAN 1500 Liberty Ridge Drive, Suite 321 Wayne PA 19087	Common	04/30/2026	8457	111853.13
10b5-1 Sales for CHRISTOPHER SULLIVAN 1500 Liberty Ridge Drive, Suite 321 Wayne PA 19087	Common	04/29/2026	8458	110736.37
10b5-1 Sales for CHRISTOPHER SULLIVAN 1500 Liberty Ridge Drive, Suite 321 Wayne PA 19087	Common	04/02/2026	7980	136822.69
10b5-1 Sales for CHRISTOPHER SULLIVAN 1500 Liberty Ridge Drive, Suite 321 Wayne PA 19087	Common	04/01/2026	7979	133770.33

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 Christopher Sullivan's Form 144 for AVTX report?

It reports a proposed sale tied to an option exercise of 18,606 shares on 05/07/2026. The filing also lists multiple prior 10b5-1 sales in April–May 2026 with share counts and gross proceeds.

Were there recent 10b5-1 sales by Christopher Sullivan for AVTX?

Yes. The filing lists several 10b5-1 sales, including a 47,000-share sale on 05/06/2026 with proceeds of $948,723.20, and smaller sales in April 2026 showing dates, shares, and gross proceeds.

Does the Form 144 state how proceeds will be used for AVTX?

No use-of-proceeds is stated. The entry for the 05/07/2026 transaction is labeled Cash, indicating a cash sale, but the filing does not specify any application of proceeds or recipient beyond the selling holder.

Does this Form 144 mean the shares have already been sold?

No. The Form 144 lists a proposed sale tied to an exercise of stock options on 05/07/2026. It separately documents prior completed 10b5-1 sales; the proposed sale's settlement and final disposition are not confirmed in this excerpt.