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Avalo Therapeutics (NASDAQ: AVTX) CFO sells 47,000 shares under 10b5-1 plan

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Avalo Therapeutics, Inc.'s Chief Financial Officer, Christopher Ryan Sullivan, reported a combination of stock sales and option exercises. On May 6, 2026, he executed open-market sales totaling 47,000 shares of Avalo Therapeutics common stock in multiple tranches under a Rule 10b5-1 trading plan adopted on November 12, 2025, at prices ranging from $17.95 to $22.88 per share.

On the same date, he exercised stock options to acquire 47,000 common shares at an exercise price of $8.04 per share. Following these transactions, he directly holds 47,423 shares of common stock and 116,000 stock options that are scheduled to vest over time and expire on January 28, 2035.

Positive

  • None.

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Insider Sullivan Christopher Ryan
Role Chief Financial Officer
Sold 47,000 shs ($949K)
Type Security Shares Price Value
Exercise Stock Option (Right to Buy) 47,000 $0.00 --
Exercise Common Stock 47,000 $8.04 $378K
Sale Common Stock 13,834 $18.5525 $257K
Sale Common Stock 12,347 $19.2835 $238K
Sale Common Stock 2,700 $20.76 $56K
Sale Common Stock 9,219 $21.3698 $197K
Sale Common Stock 8,900 $22.5745 $201K
Holdings After Transaction: Stock Option (Right to Buy) — 116,000 shares (Direct, null); Common Stock — 47,423 shares (Direct, null)
Footnotes (1)
  1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 12, 2025. The reported securities were sold in multiple transactions at prices ranging from $17.95 to $18.90. 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. The reported securities were sold in multiple transactions at prices ranging from $19.02 to $19.91. 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. The reported securities were sold in multiple transactions at prices ranging from $20.04 to $20.81. 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. The reported securities were sold in multiple transactions at prices ranging from $21.10 to $21.90. 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. The reported securities were sold in multiple transactions at prices ranging from $22.26 to $22.88. 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. 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 sold 47,000 shares Total Avalo Therapeutics common stock sold on May 6, 2026
Sale price range $17.95–$22.88 per share Price range for multiple open-market sale tranches
Options exercised 47,000 shares Common shares acquired via stock option exercise on May 6, 2026
Option exercise price $8.04 per share Exercise price for the 47,000 stock options converted to common stock
Common shares held 47,423 shares Direct Avalo Therapeutics common stock holding after transactions
Options remaining 116,000 options Stock options held after exercise, expiring January 28, 2035
Option expiration January 28, 2035 Expiration date for remaining stock options at $8.04 exercise price
10b5-1 plan adoption date November 12, 2025 Date CFO adopted Rule 10b5-1 trading plan governing these trades
Rule 10b5-1 trading plan regulatory
"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted..."
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.
open-market sale financial
"transaction_action": "open-market sale", "transaction_code_description": "Sale in open market or private transaction""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Stock Option (Right to Buy) financial
""security_title": "Stock Option (Right to Buy)", "transaction_date": "2026-05-06T00:00:00.000Z""
derivative security financial
""transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
vesting financial
"The stock option vests twenty-five percent (25%) on January 28, 2026 and the remainder will vest in equal monthly installments..."
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
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)
05/06/2026
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 Stock05/06/2026M(1)47,000A$8.0447,423D
Common Stock05/06/2026S(1)13,834D$18.5525(2)33,589D
Common Stock05/06/2026S(1)12,347D$19.2835(3)21,242D
Common Stock05/06/2026S(1)2,700D$20.76(4)18,542D
Common Stock05/06/2026S(1)9,219D$21.3698(5)9,323D
Common Stock05/06/2026S(1)8,900D$22.5745(6)423D
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)$8.0405/06/2026M(1)47,000 (7)01/28/2035Common Stock47,000$0116,000D
Explanation of Responses:
1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 12, 2025.
2. The reported securities were sold in multiple transactions at prices ranging from $17.95 to $18.90. 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 reported securities were sold in multiple transactions at prices ranging from $19.02 to $19.91. 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.
4. The reported securities were sold in multiple transactions at prices ranging from $20.04 to $20.81. 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.
5. The reported securities were sold in multiple transactions at prices ranging from $21.10 to $21.90. 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.
6. The reported securities were sold in multiple transactions at prices ranging from $22.26 to $22.88. 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.
7. 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 Sullivan05/07/2026
** 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)

FAQ

What insider transaction did Avalo Therapeutics (AVTX) report for its CFO?

Avalo Therapeutics reported that CFO Christopher Ryan Sullivan sold 47,000 common shares and exercised stock options for 47,000 shares. The transactions occurred on May 6, 2026 and were disclosed in a Form 4 insider trading report.

At what prices did the Avalo Therapeutics (AVTX) CFO sell his shares?

The CFO’s sales were executed in multiple transactions at prices ranging from $17.95 to $22.88 per share. These trades were broken into several tranches, each within narrower price bands disclosed in the Form 4 footnotes.

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

After the reported transactions, CFO Christopher Ryan Sullivan holds 47,423 shares of Avalo Therapeutics common stock directly. This figure reflects his position following both the open-market sales and the exercise of 47,000 stock options into common shares.

Did the Avalo Therapeutics (AVTX) CFO exercise stock options in this Form 4 filing?

Yes. The CFO exercised stock options covering 47,000 shares of Avalo Therapeutics common stock at an exercise price of $8.04 per share. This exercise converted derivative securities into common shares as part of his reported transactions.

Was the Avalo Therapeutics (AVTX) CFO’s share sale part of a Rule 10b5-1 trading plan?

Yes. The Form 4 states the transactions were effected under a Rule 10b5-1 trading plan adopted on November 12, 2025. Such plans pre-schedule trades, indicating these sales were planned in advance rather than discretionary market-timed decisions.

What stock option position does the Avalo Therapeutics (AVTX) CFO retain after this Form 4?

Following the reported option exercise, the CFO holds 116,000 stock options with an exercise price of $8.04 per share, expiring on January 28, 2035. The options vest 25% on January 28, 2026, with the remainder vesting in equal monthly installments over three years.