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Avalo CFO sells 10K shares after option exercise

Avalo Therapeutics’ CFO exercised options and sold 10,185 shares under a pre-arranged Rule 10b5-1 trading plan, while retaining a substantial remaining option position.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Avalo Therapeutics, Inc. (AVTX) reported that Chief Financial Officer Christopher Ryan Sullivan exercised stock options for 10,185 shares of common stock at an exercise price of $8.04 per share on September 10, 2026, then sold 10,185 shares of common stock at a weighted average price of $17.6197 per share in multiple transactions. These trades were effected pursuant to a Rule 10b5-1 trading plan adopted on May 18, 2026. Following the option exercise, he continued to hold 105,815 options to purchase common stock at $8.04 per share, expiring on January 28, 2035, with the option vesting 25% on January 28, 2026 and the balance in equal monthly installments over the following three years, subject to continued service.

Positive

  • None.

Negative

  • None.
Insider Sullivan Christopher Ryan
Role Chief Financial Officer
Sold 10,185 shs ($179K)
Approx. gross sale proceeds $179K
Approx. exercise cost $82K
Approx. pre-tax spread $98K
Type Security Shares Price Value
Exercise Stock Option (Right to Buy) F1, F3 10,185 $0.00 $0.00
Exercise Common Stock F1 10,185 $8.04 $82K
Sale Common Stock F1, F2 10,185 $17.6197 $179K
Holdings After Transaction: Stock Option (Right to Buy) — 105,815 contracts (Direct); Common Stock — 39,900 shares (Direct)
Footnotes (3)
  1. F1. These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 18, 2026.
  2. F2. The reported securities were sold in multiple transactions at prices ranging from $17.17 to $17.95. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.
  3. F3. The stock option vests twenty-five percent (25%) on January 28, 2026 and the remainder will vest in equal monthly installments over the following three (3) years, subject to the Reporting Person's continued service on such vesting date.
Shares exercised 10,185 shares Stock options exercised for common stock on September 10, 2026
Exercise price $8.04 per share Exercise price of the stock options converted into common stock
Shares sold 10,185 shares Common shares sold on September 10, 2026 after option exercise
Weighted average sale price $17.6197 per share Weighted average price for shares sold in multiple transactions
Sale price range $17.17–$17.95 per share Range of prices for the multiple sale transactions
Options remaining 105,815 options Stock options to buy common stock held after the reported transactions
Option expiration date January 28, 2035 Expiration date of the reported stock option position
Rule 10b5-1 plan adoption date May 18, 2026 Date the reporting person adopted the trading plan used for these transactions
Rule 10b5-1 trading plan regulatory
"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 18, 2026."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
vests twenty-five percent (25%) financial
"The stock option vests twenty-five percent (25%) on January 28, 2026 and the remainder will vest in equal monthly installments..."
equal monthly installments financial
"The stock option vests twenty-five percent (25%) on January 28, 2026 and the remainder will vest in equal monthly installments over the following three (3) years..."
continued service other
"...over the following three (3) years, subject to the Reporting Person's continued service on such vesting date."

FAQ

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

What transactions did Avalo Therapeutics (AVTX) CFO report on September 10, 2026?

He exercised options for 10,185 shares of Avalo Therapeutics common stock at $8.04 per share and then sold 10,185 shares in multiple transactions at a weighted average price of $17.6197 per share on the same date.

Were the AVTX insider transactions made under a Rule 10b5-1 plan?

Yes. The filing states that the reported transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 18, 2026, indicating they were executed according to a pre-arranged trading schedule.

How many Avalo Therapeutics (AVTX) options does the CFO hold after these transactions?

After the September 10, 2026 option exercise, the reporting person held 105,815 stock options to purchase Avalo Therapeutics common stock at an exercise price of $8.04 per share, with these options scheduled to expire on January 28, 2035.

What prices were the AVTX shares sold for by the CFO?

The 10,185 shares were sold at a weighted average price of $17.6197 per share, in multiple transactions at prices ranging from $17.17 to $17.95 per share, as disclosed in the footnotes to the filing.

What is the vesting schedule of the Avalo Therapeutics stock option involved?

The filing explains that the stock option vests 25% on January 28, 2026, and the remainder vests in equal monthly installments over the following three years, subject to the reporting person’s continued service on each vesting date.

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

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Sullivan Christopher Ryan

(Last)(First)(Middle)
C/O AVALO THERAPEUTICS, INC.
1500 LIBERTY RIDGE DRIVE, SUITE 321

(Street)
WAYNE PENNSYLVANIA 19087

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Avalo Therapeutics, Inc. [ AVTX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Financial Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/10/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock09/10/2026M(1)10,185A$8.0450,085D
Common Stock09/10/2026S(1)10,185D$17.6197(2)39,900D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$8.0409/10/2026M(1)10,185 (3)01/28/2035Common Stock10,185$0105,815D
Explanation of Responses:
1. These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 18, 2026.
2. The reported securities were sold in multiple transactions at prices ranging from $17.17 to $17.95. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.
3. The stock option vests twenty-five percent (25%) on January 28, 2026 and the remainder will vest in equal monthly installments over the following three (3) years, subject to the Reporting Person's continued service on such vesting date.
/s/ Christopher Sullivan09/11/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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